Calf

Frozen Calf Gets Spa Treatment and Couch Cuddles During Arctic Blast

Mon, 02 Feb 2026 16:00:48 GMT

With the cattle herd still at multi-decade lows, every calf counts more than ever. That’s especially true during these last few days as arctic air and winter storms poured into the lower 48.

Macey Sorrell and her family live and farm in Mt. Sterling, Ky. As the area recently experienced storms of freezing rain and sheets of ice, the Sorrells welcomed a new calf into the world.

“Whenever my husband found her, she was maybe two hours old and she was already frozen with ice all in her hair,” Sorrell describes. “Her little umbilical cord looked like a popsicle. So I took the truck back there, put the calf in the bed of the truck and brought her in the house.”

Blankets, a hair dryer, a good rub down and bottle of colostrum helped warm the new baby up.

“After she got her belly full, she was ready for a nap,” Sorrell says. “My kids had also fallen asleep, so I just piled her up on the couch with them for some cuddles.”

The pictures she snapped while the little ones slept are cute enough to warm even the coldest heart. The moment, frozen in time, is now going viral.

“The reaction has been crazy,” Sorrell laughs. “You know, anywhere around here, this is nothing new. You’re going to see a calf inside, a sheep or even a goat. Folks are going to bring the babies inside. I think what made it so special was just the calf on the couch with the babies cuddling.”

The next morning, warm and newly named baby Sally had a happy reunion with her mama.

“When her mama heard her mooing, she came running,” Sorrell says. “Sally started nursing, and they have both been really good since.”

Sorrell and her husband, Tanner, are pleased with the results and the life lessons for their little crew.

“I think, if anything, it’s not an animal. It is a life, and we’ll do whatever we can to help not only an animal but anybody,” Sorrell says. “There’s always a space in my house for a critter.”

The cold is still visiting. More snow is in the forecast. The work at America’s farms and ranches never stops. Since Sally arrived, more babies have been born in the cold.

“We actually had a baby calf born just a few days before that one, and then another one born yesterday,” Sorrell says.

And life on the farm continues, both inside and out.

It’s not just Kentucky dealing with the severe winter storm aftermath and the devastation it left behind. As of Jan. 31, 2026, it was reported over 150,000 homes and businesses remain without power across the Mid-South, specifically in Tennessee, Mississippi and Louisiana, following a severe winter storm.

Farm Journal’s Chris Bennett says it could be weeks before his area of Mississippi will have power again, as he describes the horrific scene from last week’s winter storm.

Managing Vitamins and Minerals to Increase Calf Survival

Thu, 15 Jan 2026 21:31:03 GMT

Stillbirths and weak newborn calves are among the most frustrating outcomes in both beef and dairy systems. Calving difficulty, infectious disease and congenital defects are often investigated first, yet many cases end with no clear explanation. Even when calving appears normal, losses still occur leaving veterinarians and producers searching for answers after the fact.

Dr. Bob Van Saun, professor and Extension veterinarian at Penn State University, spoke on the importance of maternal nutrition and the placental transfer of vitamins and minerals on a recent episode of AABP’s “Have You Herd?” podcast.

What often goes unnoticed is the gestational environment that shaped the fetus long before calving began. Nutritional decisions made months earlier, particularly around vitamins and trace minerals, can quietly determine whether a calf is born resilient, compromised or nonviable. Rather than being isolated calving failures, some stillbirths might represent the final outcome of inadequate fetal preparation.

“If we don’t do what we need to do nutritionally for that pregnant animal, we could have very long-term effects not only on the reproductive success of the female, but also on the offspring,” Van Saun says.

Newborn Calves Enter the World Nutritionally Limited

Newborn calves, whether beef or dairy, arrive with a biological disadvantage: milk alone cannot meet their trace mineral and vitamin needs.

“We often tout milk as nature’s perfect food, and it certainly plays a very important role in the macro minerals and in energy and protein, but one of the things that’s been well known is milk does not have significant quantities of most of the trace elements. Particularly iron, copper, selenium and even some of the vitamins aren’t in high quantities within the milk,” Van Saun says.

Trace minerals and vitamins are essential for enzyme function, immune development and antioxidant defense, yet the neonatal diet provides very little of them. As a result, the calf’s ability to survive early life depends heavily on what accumulated before birth, particularly in the fetal liver.

“With some of the work that’s been done, we’re starting to recognize that the mineral status of that newborn calf is very dependent upon how we feed mom,” Van Saun says.

In addition to gestational nutrient transfer, colostrum is an important way to get calves off on the right foot, especially with fat soluble vitamins, so long as the mother has been appropriately supplemented.

Placental Transfer of Minerals and Vitamins

Minerals and vitamins reach the fetus through the placenta, but not all nutrients behave the same way. Trace minerals appear to move primarily by facilitated diffusion, rather than active transport. Van Saun explains that as a result, fetal blood concentrations are typically much lower than maternal blood concentrations.

Once those nutrients enter fetal circulation, the liver becomes the key storage site. However, the complete mechanism by which these nutrients are stored in the liver is not well understood.

“If you remember the anatomy, the umbilical vein goes directly to the liver. It’s my thinking that the fetal liver somehow captures these minerals and stores them,” Van Saun says. “The fetal liver can concentrate these trace elements to a level that’s nearly twice what we typically see in the dam. We need to find out what influences this.”

In contrast, fat-soluble vitamins cross the placenta inefficiently, particularly later in gestation, leaving newborn calves relatively depleted at birth and heavily reliant on colostrum to establish antioxidant protection.

Maternal Mineral Deficiencies and Fetal Loss

At the Penn State diagnostics lab, mineral and vitamin analyses of fetal and stillborn calf livers have revealed a surprising number of incidences of deficiency. Despite expectations of a linear relationship between maternal mineral status and fetal mineral status, there appears to be very little direct relationship.

“When I plot maternal versus fetal concentrations, I generally see a shotgun scattergram,” Van Saun explains. “That makes me think there’s got to be some other regulatory process there.”

Across the data, several nutrients appear repeatedly in association with fetal loss and stillbirth. Van Saun highlights the following:

Copper: Essential for enzyme systems and antioxidant defense
Selenium: Critical for glutathione peroxidase activity
Zinc: Involved in cellular and immune development
Magnesium: Supports energy metabolism and neuromuscular stability
Vitamin A: Needed for epithelial development and antioxidant defense

Oxidative Stress at Birth

As umbilical blood flow is compromised during delivery, particularly during prolonged or difficult births, the fetus experiences hypoxia.

“That’s going to produce large quantities of reactive oxygen species,” Van Saun explains. “And if those aren’t squelched by the antioxidant system, that could cause the demise of the animal.”

Trace minerals and fat-soluble vitamins play central roles in the defense against reactive oxygen species. When fetal reserves are marginal, oxidative stress during calving might push a compromised fetus past a survivable threshold. This could help explain why some stillborn calves show no obvious infectious, genetic or mechanical cause at necropsy.

Why Overfeeding Isn’t Usually the Problem

A common concern is whether aggressive mineral supplementation could harm the fetus. However, even in dams with liver mineral levels that would be considered toxicosis, fetal levels remain within a narrow range.

“When maternal concentrations of liver minerals are very low, the fetal maternal ratio is quite high. In other words, the fetus is capable of extracting more mineral from a deficient mom,” Van Saun says. “But as mom’s mineral status increases to very high levels, the ratio is quite low. Suggesting that there is some mechanism in place where the fetus doesn’t over accumulate.”

Van Suan observed this most profoundly with copper, but has also seen the same pattern with zinc, iron, selenium and manganese.

“Somehow, Mother Nature has built in a protective mechanism on both ends of the spectrum ensuring even when mom is on the low side, the fetus can try to accumulate,” he says. “And then if mom is on the high side, the fetus doesn’t over-accumulate.”

Stillborn Calves as Nutritional Sentinels

Stillborn calves represent an underused opportunity to evaluate herd nutrition. Liver mineral and vitamin analysis from stillborn calves can uncover deficiencies that were not clinically apparent in the dam.

“We really need to emphasize how to make a good situation out of a bad situation,” Van Saun says. “I think if you’re having a string of stillborns, I would be wanting to take a liver sample.”

Repeated measures of low selenium, copper, or vitamin A in stillborn calves, especially in the absence of other pathology, can point back to gestational nutrition as the root cause.

What Can You Do to Get Ahead of the Problem?

Effective investigation of stillbirths and weak calves should begin with diet evaluation, but meaningful assessment of gestational nutrition requires a broader, more deliberate strategy. A clearer understanding can be gained by using multiple diagnostic entry points across the herd and across time.

Van Saun highlights several practical diagnostic opportunities:

Submitting liver samples from stillborn calves when infectious and congenital causes are not identified
Using cull cow or abattoir liver samples to establish baseline mineral status
Sampling healthy animals within defined physiologic groups, rather than sick cows in inflammatory states
Building longitudinal data rather than interpreting isolated results

Taken together, these approaches allow the shift from reactive troubleshooting to proactive risk management.

Stillbirths and weak calves are often the final expression of biological constraints established months earlier not failures limited to the calving event.

Cost-Effective Supplementation for Growing Calves

Fri, 05 Sep 2025 12:01:02 GMT

From a moisture standpoint, the summer of 2025 has been good for many cattle producers. As a result, many have ample standing forage.

The Oklahoma Gold and Oklahoma SuperGold supplementation programs were designed to cost effectively improve the growth of calves and stocker cattle grazing pastures in late summer and fall. Both are based on limit-feeding high-protein supplements.

Crude Protein (CP) content and digestibility of warm season grasses declines during mid-summer and fall. No doubt many producers watched green pastures turn brown during August when there was little rain coupled with several weeks of intense heat. This weather pattern corresponds with declining quality of standing forage.

In late spring and early summer calves can gain 2 to 3 lb./day on the same pastures that now may be limiting gains to less than half that amount, even with ample standing forage. Why? Because cattle’s growth performance is based on the most limiting nutrient in their diet.

The same grasses that would have contained more than 10% CP in late spring and early summer are now likely well below that level. Regardless of our warm season forage type, (native grasses, Bermuda, sorghum Sudan or millet), the same maturity pattern holds true. A 500 lb. calf gaining 1.5 lb./day requires a diet containing a minimum of 10% CP.

Bottomline: at this point, CP has become the growth limiting factor in a calf’s diet.

The Cost-Effective Solution

If you have standing forage to be used before wheat pasture comes on, or just wanting to cost effectively add weight to growing calves, the key to improving growth rates is protein supplementation. As opposed to high energy creep feeds, Gold and SuperGold programs are designed to improve growth rate through high protein supplementation when ample standing forage is available.

The Oklahoma Gold program includes a 38% CP supplement at a rate of 1 lb./day and includes an ionophore additive along with vitamins and minerals. The Oklahoma SuperGold program is similar as it includes supplementing a 25% CP at a rate of 2.5 lb./day.

The Oklahoma Gold program is one of the most cost effective and industry proven supplementation programs ever developed.

From early June to October, several trials conducted at OSU, indicate feeding 1 lb./day of Gold can increase gains of stockers grazing summer pastures by up to 0.6 lb./day. Furthermore, the Gold program is based on a low volume of feed and offers the flexibility of feeding every-other-day. In some situations the SuperGold feeding program may offer advantages. Remember, both of these feeding strategies work based on ample standing forage.

Minimizing Shrink to Maximize Profit

Thu, 04 Sep 2025 14:59:57 GMT

Every pound counts at the sale barn — and sometimes, the weight loss happens long before calves ever hit the scale.

For cattle producers, shrink isn’t just a biological response to stress; it’s an invisible drain on profit margins that can be managed with the right timing and techniques, according to K-State beef cattle experts.

K-State veterinarian Brad White explains “shrink” as the weight loss that occurs between gathering calves at home and their final weigh-in at the scale.

“In general, I expect calves to lose weight if they’re sitting in a new environment, new water source, just transported and everything else,” says veterinarian Bob Larson. “So even though it might be easiest for me to take calves on the day that’s most convenient for me, in order to address shrink, I think it’s better to move that transport to the sale as late as possible.”

There are also economic implications associated with shrink.

“You think about a 500-lb. steer; you know, every 1% difference in shrink is 5 lb.,” Larson says. “And so you add a couple more percentages of shrink, and the amount of money we are talking about is easily offset by hiring somebody to help me gather them.”

Proper cattle handling techniques play a critical role in minimizing weight loss during the marketing process, the experts emphasize.

“We feel stressed because we have things to do, and we start rushing and pushing the cattle harder. We start losing those low-stress handling principles in the process,” beef cattle nutritionist Phillip Lancaster says. “Now that they are stressed, they have an increase in urination, defecation, and they start losing fluids and losing weight quicker.”

For producers concerned about shrink, online auction platforms may offer a useful alternative.

“One tool that producers have is methods that limit the amount of time the calves spend in the marketing system, such as marketing online,” Larson says.

The specialists concluded that shrink represents an invisible cost that doesn’t appear on invoices but significantly impacts producer profitability, making proper management essential for maximizing returns.

More on this topic is available on the latest episode of the K-State BCI Cattle Chat podcast.

Tetanus: A Storm Aftermath Problem for Animals

Tue, 19 Aug 2025 10:40:15 GMT

Of all the challenges faced by livestock owners and animal caretakers in the wake of damaging spring and summer storms, one potentially serious animal disease might not appear for days or weeks later: Tetanus.

Debris blown about by storms poses an injury threat to confined animals, as well as those in pastures and lots. These storms can also spook animals into running through fences and damaged buildings. A wide variety of animal injuries can result, ranging from minor scratches to debilitating injuries that require intensive treatment or euthanasia. When deep wounds result, Tetanus is a potential problem.

What causes Tetanus?

Tetanus is caused by a bacteria, Clostridium tetani, that only creates disease under very specific conditions. Farms can’t avoid this bacteria. It’s very common in soil and animal manure in spore forms that are very resistant to time and weather conditions.

Sitting out in the barnyard, these bacterial spores are harmless. It’s when they find their way into wounds that they cause disease. In damaged muscle and connective tissue that’s deep enough that oxygen can’t penetrate, the spores activate into rapidly reproducing bacteria that produce toxins.

One of these toxins, called tetanospasmin, attaches to nerve endings in the area. The toxin blocks the nerve’s ability to release inhibitors that “switch off” muscle fiber contraction. As a result, muscles can’t stop contracting.

As more toxin is produced, it migrates up to involve more of the nervous system. Uncontrolled muscle contractions create clinical signs of stiffness, muscle tremors, a “sawhorse” stance and “flicking” of the third eyelid. Eventually the animal is beset with generalized tremors and an inability to stand; death or euthanasia is the outcome.

Because animal environments are commonly populated with Clostridium tetani, any wound can easily become contaminated. But not every wound provides the right conditions for Tetanus. Deep puncture wounds that introduce the bacteria into damaged, oxygen-poor body tissue are most often associated with Tetanus.

The time from the wound occurrence to the onset of disease can vary from several days to several weeks, but is typically 10-14 days.

Additionally, animal species differ in how vulnerable they are to Tetanus infections. Horses are by far the mos- susceptible species, followed by cattle, sheep and pigs.

How do you treat and prevent it?

Tetanus is a preventable disease, with vaccines widely available for use in livestock species. Tetanus vaccine is considered a “core” vaccine for all horses, meaning that all horses should have annual Tetanus vaccinations. Routine Tetanus vaccination is less commonly recommended for cattle and older sheep, and generally focuses on calves and lambs being band castrated.

Once a wound occurs, the potential for Tetanus to develop can be dramatically reduced by prompt intervention. Following a storm, animal caretakers should closely examine their animals, as puncture wounds might not be obvious externally. Administering Tetanus antitoxin, proper wound care, and antibiotic treatment can reduce the chance that Clostridium tetani infections and their subsequent problems will occur. Because horses are highly susceptible, they should be administered antitoxin and have their Tetanus vaccination boostered when any kind of wound, however minor, is detected. While cattle and sheep are less susceptible, those interventions may be appropriate for them too.

Wound care methods vary according to their severity and location, so a veterinarian should be consulted about how to deal with them, as well as appropriate antibiotics to use. Once signs of Tetanus set in, progression can be very hard to stop, so prompt action is important.

Animal care can be challenging following destructive storms, with Tetanus just one of the many considerations for animal caretakers. If you are one of these people, contact your local veterinarian for guidance.

Three Strategies to Prevent Weaning Health Woes

Mon, 04 Aug 2025 15:32:24 GMT

Careful planning and management are critical to maintaining animal health at weaning. Before starting the weaning process, the first step is making sure the calf’s immune system is ready for the stress of being separated from its mother.

“I encourage producers to work with their practicing veterinarian and review their herd health protocols for weaning in advance of when they start the weaning process,” says Jason Warner, Kansas State University Extension cow-calf specialist. “Have an annual conversation and a plan put together that can be adjusted each year.”

Megan Van Emon, Montana State University Extension beef cattle specialist, says the goal should be to strengthen the calves’ immune systems before they face the challenges of separation from their mothers, potential transportation and new environments.

“Proper vaccination can help reduce health risks during this critical transition period,” she summarizes.

Warner, Van Emon along with John Hall, University of Idaho Extension beef specialist, and Ron Lemenager, Purdue University beef specialist, share these three strategies to help keep calves healthy at weaning.

1. Develop a Vaccination Strategy to Boost Immunity.

“One of the first things I suggest is a good vaccination program that a producer works on with their veterinarian,” Hall says. “The earlier you can reach out to your vet, the better; just to get those vaccines lined up. Make sure they have them in stock and ready to go for you.”

It takes 10 to 14 days for a calf’s immune system to sufficiently respond to a vaccine, so immunizations should ideally occur two or three weeks ahead of weaning. The specialists explain vaccinating calves for the first time at weaning is too late, as it doesn’t allow sufficient time for the vaccine to work before introducing calves to increased exposure risk.

Lemenager recommends a minimum of two vaccination rounds for weaned calves — one before weaning and then the second at weaning.

Hall reminds producers to review the vaccination protocols and be sure to booster if needed.

2. Don’t Combine Stressful Procedures.

Lemenager stresses the importance of not combining weaning with other stressful events such as castration and dehorning. He suggests castration and dehorning at branding or earlier, if possible, to reduce stress.

3. Observe for Illness Indicators.

“It’s that seven to 10 days to two weeks after weaning that we’re going to start seeing any kind of health issues,” Lemenager says,

It is important to monitor and watch for early signs of health issues, including:

Water and feed intake
Lemenager says dehydration is a common issue that can cascade into other health issues.
Activity level
Eye brightness
Ear position
Hall says to watch for droopy ears and depressed-looking calves.
Nasal discharge
Breathing quality and speed
Coughing
Manure
Hall says to watch for manure inconsistency as well as for signs of coccidiosis (blood-tinged)
Overall energy and movement

Lemenager explains if you have a weaned calf with any of the indicators it is a good strategy to take its temperature and then work with your veterinarian or herd health provider to develop a strategy and come up with the first line of defense before a potential outbreak occurs.

Get BQA Certified

Hall reminds producers about the importance of the Beef Quality Assurance program and encourages all producers and their employees to get BQA trained and certified .

The BQA program’s mission is to guide producers toward continuous improvement using science-based production practices that assure cattle well-being, beef quality and safety. The program provides cattle producers with the resources to enable continuous improvement with the mindset of doing things the right way at the right time.

“When vaccinating or working cattle, be sure to follow BQA procedures,” Hall says. “Including proper injection sites, never mixing two different vaccines in the same syringe, using the proper sized needle and changing them often, keeping vaccines in a cooler and out of the sun (proper vaccine handling).”

Check out the BQA Field Guide for a quick reference to information.

Implementing the strategies suggested by the Extension specialists can significantly improve calf health during the weaning transition, resulting in better performance and increased profitability.

Your Next Read: Key Nutrition Strategies for a Successful Weaning

Key Nutrition Strategies for a Successful Weaning

Thu, 31 Jul 2025 10:27:30 GMT

Keys to a successful weaning are reducing stress, supporting the calves’ immune systems and maintaining good nutrition.

Megan Van Emon, Montana State University Extension beef cattle specialist, shares these four nutritional strategies that are key to success at weaning:

Help calves learn to eat from bunks and drink from troughs before weaning if possible.
Provide high-quality feed immediately after weaning.
Ensure fresh, clean water is available.
Use palatable feeds to encourage calves to eat.

Jason Warner, Kansas State University Extension cow-calf specialist, says if producers are weaning calves and placing them in pens and are planning to deliver them a mixed ration, they need to remember that feed intake will be low initially but will gradually increase as calves transition and the initial stress due to the separation event subsides.

“When calves are first weaned, providing them with plenty of access to palatable, fresh, long-stem grass hay is always a good approach and gradually introducing them to a weaning ration over a period of several days,” Warner explains. “Feedstuffs low in starch and high in digestible fiber such as distillers grains or gluten feed are good choices to include in weaning and receiving diets.”

John Hall, University of Idaho Extension beef specialist, suggests a weaning diet of: 60% to 65% forage, 14% to 16% crude protein and around 65% total digestible nutrients (TDN)

“I prefer byproducts such as distillers grains, corn gluten feed, soy hulls — those kind of highly digestible fiber products — which don’t cause us big problems with acidosis and problems with rumen function that feeding straight corn or milo or something like that would cause,” Hall explains.

He emphasizes using high-quality forages and by-products to support rumen function and avoid digestive issues in newly weaned calves.

Hall also stresses a good mineral program is crucial for supporting immune function during the stressful weaning period. He encourages producers to focus on trace minerals — copper, selenium, zinc, manganese — and to use chelated or hydroxy mineral forms.

Hall shares these suggestions for producers to consider:

Work with a nutrition expert or consultant when formulating rations.
Use highly digestible fiber products.
Avoid straight corn to prevent rumen issues.
Supplement calves on pasture if possible.
Introduce new feed sources gradually.

If early weaning, Hall says: “For these early weaned calves, diets that are fairly high in forages are very important in terms of rumen function and calf health, and then enough energy.”

Ron Lemenager, Purdue University beef specialist, says a key principle is maintaining consistency in the ration. He suggests using the same creep feed during preweaning as the initial weaning ration to reduce stress and digestive disruption. This approach helps calves transition smoothly from milk to solid feed.

“I like to include an ionophore in my creep and weaning rations to help stabilize rumen fermentation,” he says. “When using byproducts like distillers grains or corn gluten feed, make sure to check the calcium to phosphorus ratio of the feed to prevent urinary calculi.”

Lemenager explains that the time around weaning is a critical “marbling window” between weaning and 9 to 10 months of age when strategic starch feeding can enhance meat quality. For replacement heifers, he recommends maintaining a high-fiber diet, while steers and market heifers should transition to more corn-based rations to develop intramuscular fat.

He stresses a weaning nutrition program isn’t one size fits all. Producers should consider individual herd characteristics, calf age and intended market endpoint when designing weaning nutrition strategies.

“The overarching goal is to support calf health, minimize stress, maintain growth performance and potentially improve future meat quality through strategic nutritional management during the critical weaning period,” Lemenager summarizes.

Your Next Read: Step-by-Step Weaning: How to Choose the Best Method

Step-by-Step Weaning: How to Choose the Best Method

Mon, 28 Jul 2025 16:28:34 GMT

Weaning is a stressful time — stressful on calves, cows and producers.

Weaning can have a major impact on a calf’s short and long-term health, growth performance and economic returns. Minimizing weaning stress should improve calf health and weight gain.

“Weaning can be approached many different ways depending on what facilities are available,” says Jason Warner, Kansas State University extension cow-calf specialist.

Four beef cattle extension specialists chime in on weaning methods, including the pros and cons of each option.

“Everybody’s got an opinion,” says Ron Lemenager, Purdue University beef specialist. “I don’t think it’s a one option fits all.”

He also encourages producers to minimize any additional stressful events at weaning time, such as castration, dehorning, vaccinating, physical separation or transportation.

“While we can’t eliminate all stresses, castration, dehorning and the first round of vaccinations can be done preweaning in many situations to reduce weaning stress,” he says.

The three weaning methods discussed by the specialists include:

Fence-line weaning.
Calves and cows are separated by a fence but can still see each other. Fence-line weaning is considered a low-stress method because calves can still see, hear and smell their mothers, which helps reduce the psychological stress of separation. This method helps calves settle down faster.

“Fence-line weaning is ideal if the facilities are available,” says Megan Van Emon, Montana State University extension beef cattle specialist.

John Hall, University of Idaho extension beef specialist, agrees.

“When you’re set up for it and used to it, my preference is fence-line weaning. We’ve gotten along very well with it over the years at the research station here. Those calves do settle down more easily,” Hall says.

Warner says fence-line weaning requires good fences and the ability to gather and separate cows and calves that rejoin each other.

“Many producers often remove calves from their dams, leave the cows on pasture and then place the calves in pens or feeding traps,” Warner says. “If producers do the opposite — take cows to the pens and leave the calves on pasture — then it is generally best to keep a few older, trainer cows with the calves during the initial weaning period to help reduce stress. Nutrition is key during this time period regardless of the approach used.”

There are pros and cons of putting the cows or the calves in the lot. If the lot is dusty, it might be a better option for the cows, due to health concerns. Ideally, it would be a grass lot, not dirt.

“Putting the calves in a lot gives an opportunity to really keep a close eye on those calves,” Lemenager says. “I can get them into the handling facility if I need to — a lot easier than if I’ve got to move them off of pasture.”
Nursing prevention tools.
Devices, such as nose flaps or clips, can be placed in a calf’s nose to prevent nursing while allowing them to remain with their mothers. This is also considered a low-stress weaning option.

Lemenager explains his apprehension with the nose flaps are the lesions they create.

Both Hall and Van Emon say nose flaps help reduce anxiety at separation but require additional labor to put in and remove.

“There’s been some research done on nose flaps that seems to have positive benefits if you’re trying to early wean,” Hall explains. “But it is a whole different level of stress for the rancher and cattle to get those animals up, put the nose flaps in, and then take them out at weaning time.”
Abrupt weaning.
This method is the complete separation of calves from cows. This can be separating and taking straight to the sale barn or it can be to a completely different location owned by the rancher.

“Here in the West, we tend to wean straight onto a truck and into the sale barn,” Van Emon says.

This method can be the most stressful on the calf if they go straight from a pasture setting with mom to a new location they do not know and are subjected to a new concentrate diet and water source.

Lemenager’s preference is abrupt weaning with his personal cow herd. He moves the calves nine miles away from their moms to be weaned and backgrounded. He says with this method, the cows and calves cannot hear each other and the bawling is done in three days.

He gets the calves used to eating with a pre-weaning creep feed and drinking out of a water tank. At weaning, the creep feeder moves with the calves in a grassy lot with shade and easy access to both a water tank and an automatic waterer along the perimeter fence.

Hall says asking calves to transition from pasture to a dry lot setting with a feed bunk and from creek water to a water tank can be stressful and hard to understand. If possible, allow the calves access and train them to feed bunks and water tanks before weaning.

He encourages producers to choose the weaning method they are most comfortable with, that works for their specific ranch and fits their facilities, labor and management style.

“Don’t try a new method during a challenging weaning year,” he summarizes. “The goal is to reduce stress as much as possible for both cows and calves.”

Your Next Read: When Is the Best Time to Wean?

There’s a Lot of Info in That Little TSU

Mon, 28 Jul 2025 10:22:45 GMT

“The sky’s the limit if you have that sample,” says Jim Butcher, a Simmental seedstock producer from Lewistown, Mont.

He’s talking about all the things you can learn about the genetic potential of your cattle that is contained in a tissue sampling unit (TSU). The genomic information you get from each sample can, collectively and individually, help you more quickly move your herd’s genetic progress forward in an intentional, science-assisted direction.

There’s lots of info in that little vial.

(Allflex)

For commercial cow-calf producers, submitting the DNA sample in a TSU will return a scoresheet on each animal ‘s genetic merit for different indexes and specific traits, says Leoma Donsbach, owner and founder of Data Genie, LLC.

She calls herself a data accountant, helping customers attach the data on their operation to their record-keeping system. She says almost all her customers use TSUs to collect DNA and obtain genomic data.

Genomics are becoming more and more popular with commercial beef producers, she says.

“For replacement females, the ability to have a snapshot of that female’s genetic potential leads to increased confidence in keeping that heifer. You can say, ‘This heifer is more likely to be here until age six or seven by looking at her stayability metrics.’”

Say, for example, you’ve done your visual appraisal and picked 50 heifers as potential replacements, but you only need to keep 40. Visually, those heifers are very similar. But genetically, they could be very different, depending on what genes they received from their parents.

That’s where the TSUs and the genomic data they provide come in. First, test all 50 replacement candidates.

“Then breed them and find out which ones are bred,” she says. Even if everything went right, that still leaves some extras. “You can go back and use the genomic data to select the traits you want and/or use a maternal or terminal index to make those final decisions. You use it like comparing genomically enhanced EPDs when buying bulls.”

Beyond replacement selection, you can extrapolate the DNA data on your heifers when marketing your steers, she says. “On average, your steers will have similar genetics to your heifers. That information may add to their sale price.”

Then There Are The Bulls

Just like heifers, bulls can be full siblings and still be remarkably different in their genetic makeup.

“We’re great phenotype collectors of birth weights, weaning weights, all that,” Butcher says. “But you really don’t know what you have until you know what genes that particular animal picked up.”

When seedstock producers send in a TSU, they get back genomically enhanced EPDs. That, Butcher says, allows him to supply more accurate information about young bulls for his customers and help them make the best bull-buying decisions they can within their budget.

Indeed, not every bull is suited for every ranch. Studying the genomically enhanced EPDs gives you greater confidence in the true genetic potential of young bulls.

“You lessen the probabilities that you’re buying an animal that won’t help you move your program forward,” Butcher says.

Your Next Read: Building the Next Generation Cow Herd Using Genomic Testing

When Is the Best Time to Wean?

Thu, 24 Jul 2025 10:13:27 GMT

If conditions warrant, now might be the time to start thinking about weaning for spring calving herds. But weaning strategies are not one plan fits all, and what your neighbor does might not be the best decision for your herd.

The average suggested weaning age is 205 days. Four beef cattle extension specialists discuss the factors to consider if early weaning is the best option.

“Early weaning can be one of the most effective management strategies from both a grass/forage and cow nutrition standpoint,” says Jason Warner, Kansas State University extension cow-calf specialist.

According to Ron Lemenager, Purdue University beef specialist, the earliest recommended age for weaning a beef calf is between 60 days to 80 days, with 70 days being a common benchmark to ensure calves have a functioning rumen.

“When you wean at less than 70 days of age, the chances of having that calf turn out to be a little, potbellied orphan-looking calf goes up,” he says.

Warner adds weaning 60-to-90-day-old calves requires good, tight facilities to keep them in and feed bunks and watering troughs that the calves can reach.

Lemenager explains the decision to early wean is based on two things:

Feed resources: the kind of quality and quantity of feed.
Body condition of the cows.

John Hall, University of Idaho extension beef specialist, says there are two age ranges for early weaning. Very early weaning is weaning calves at 90 days prior to the breeding season. Producers can use this strategy to try and induce cycles in thin cows. He says calves weaned this early will require a unique management plan.

He describes early weaning as when the calf is between 150 days to 180 days of age.

“The nice thing about that 5-month-old calf is it’s only getting about 30% of its nutrition from the dam,” Hall explains. “So, making the switch when the calf is already used to eating a lot of forage is ideal.”

Megan Van Emon, Montana State University extension beef cattle specialist, encourages producers to plan to make sure the weaning process — no matter how the age of calf — goes smoothly.

“The earlier you can make the decision, the better,” she says. “Not only for the producer, but also for those calves to be prepared.”

Four Factors to Consider

The specialists share these points to aid in your early weaning decision:

Pasture and Forage Conditions
Drought is the primary trigger for early weaning. All four specialists encourage producers to assess pasture conditions, rainfall patterns and forage availability. If pastures are short and producers are concerned about overgrazing, then early weaning should be considered.

“In times of reduced forage availability — primarily drought — early weaning should be considered as a method to preserve the forage base by removing the forage demand from the calf and also reducing forage intake by the cow,” Warner says.

Van Emon explains the “take half, leave half” grazing principle becomes difficult when grass is only 3" to 4" tall, emphasizing the need to leave enough root reserves for future grazing.

Most of the research data suggests that for every two to two-and-a-half days that a calf is weaned, there is one more day of available forage for grazing for the dry cow.

“We can conservatively save or extend our forage resources by a third,” Lemenager explains. “Cow forage intake goes down and calf consumption of forage is eliminated in that grazing environment.”
Cow Body Condition
Hall says if cows are at a body condition score (BCS) 4 or lower by mid-summer, they’re in nutritional trouble and it’s likely their calves are not doing well in terms of growth rate either.

Early weaning removes the lactation demands, which will allow the cow to start regaining condition before winter. Lemenager also suggests early weaning can help reduce winter supplementation needs.

Lemenager and his family also have a cow herd in Indiana. They typically wean at about 6 months of age.

“That gives me an extra month of cows being able to pick up some body condition before the winter,” he explains.

Van Emon says research predicts for every two weeks earlier you wean, a cow will gain about a tenth of a body condition score.
Feed Resources Available for Newly Weaned Calves
It is important to have high-quality feed available for early weaned calves, as they require better nutrition for continued growth. Hall recommends producers work with a nutrition consultant or other extension specialist to create a nutrition plan for the newly weaned calves.
Facilities and Labor
Early weaning requires appropriate facilities with secure fencing and can require additional labor. Van Emon encourages producers to consider if they have the resources available to manage early weaning effectively.

Hall reminds producers the primary goal of early weaning is to maintain or improve cow condition and stretch limited forage supplies while supporting calf growth.

By carefully evaluating the factors suggested by the extension specialists and implementing proper management strategies, you can make early weaning a successful part of your operation when conditions warrant the strategy.

Your Next Read: Step-by-Step Weaning: How to Choose the Best Method

Protect Your Herd: The Signs to Watch for Calf Pneumonia

Wed, 09 Jul 2025 10:52:01 GMT

Pneumonia in young calves is an important contributor to death loss before weaning. Many veterinarians and cattle producers think of post-weaning respiratory disease, also known as Bovine Respiratory Disease (BRD), when they think about pneumonia in cattle; but calves can get pneumonia while they are still suckling their dams.

Bob Larson, K-State veterinarian, says because the risk factors associated with pre-weaning respiratory disease differ from BRD in stocker and feedlot cattle, which is usually associated with commingling and transportation.

“Our understanding of how to prevent and control BRD in post-weaned calves is not sufficient to address pneumonia in suckling calves,” he says. “Several studies investigating calf pneumonia have reported that an average of 3% to 11% of calves are expected to suffer from the disease each year. In addition, nearly 1.5% of calves will die from pneumonia before they reach the age of weaning; which makes it the second leading cause of pre-weaning death with only scours causing more losses.”

The most likely age for calves to be diagnosed with pneumonia is between 70 and 150 days of age.

Larson says cases of pneumonia are most likely to appear in:

Herds that have more cases of calf scours
Herds that bring in nursing calves from outside herds to graft onto cows that lost their calves
Creep-fed calves
Herds that synchronize cows

“Calves born after a difficult birth and calves that failed to consume enough colostrum have been shown to be at higher risk of getting sick and dying before reaching weaning age,” Larson explains.

Veterinarians indicated in a survey that weather, calving in confinement, failing to adequately vaccinate the herd, and nutritional deficiencies were also suspected for contributing to the risk of calf pneumonia.

Signs of Pneumonia

“Many times, the first sign that a herd has a problem is when a calf is found dead,” Larson warns. “Because death in young calves can also be caused by other diseases such as blackleg, digestive tract disease, or trauma, a veterinarian will probably need to examine the dead calf and may need to submit samples to a diagnostic laboratory to identify the cause of death.”

If you find calves that show signs of pneumonia such as rapid breathing, laying down and being reluctant to rise, and having a high temperature should be treated with an appropriate antibiotic after consulting with your veterinarian.

Tips for Prevention

Larson says vaccinating calves against viruses such as bovine viral diarrhea (BVD), infectious bovine rhinotracheitis (IBR), bovine respiratory syncytial virus (BRSV), and bacteria such as Mannheimia haemolytica and Pasteurella multocida may help prevent outbreaks of calf pneumonia or reduce the severity of disease, but we know that a young calf’s immune system is not able to respond as well to vaccinations as an older calf’s.

“Because even a calf with a good immune response can be overwhelmed by a large exposure to germs, a successful plan to prevent disease in young calves needs to involve more than just vaccinations,” Larson adds.

He says the herds that have the best calf health have a short calving season and few heifers and cows experiencing calving difficulty. In addition, try to keep young calves away from mud and other calves as much as possible.

“Cows that calve in good body condition and that are on a good plane of nutrition are more likely to have healthy calves,” Larson says. “The best disease-control strategy is to focus on having good overall health of the cows and calves by meeting the herd’s nutritional needs, providing a good environment and timely use of vaccinations in the cows and calves.”

In summary Larson says, if calves are affected with pneumonia while suckling their dams on summer range, you should be prepared to recognize and treat cases as early as possible with appropriate antibiotics in order to minimize death losses.

Your Next Read — Combating Pinkeye: Tips for Detection and Treatment

Creep Feeding: Will it Pay Off?

Thu, 05 Jun 2025 17:18:59 GMT

To creep feed or not to creep feed. That is the question many ranchers ask themselves during the summer. Feed of any kind is always an added input, so what should ranchers consider to ensure this practice is profitable? Mark Johnson, Oklahoma State University professor of animal and food sciences, shares several creep feeding pointers in the recent episode of the Casual Cattle Conversations podcast .

Before you can determine if a practice is profitable, you must first ask yourself the purpose of the practice.

“The bottom line of creep feeding is to put additional weight on calves through additional nutritional resources that only the calves have access to,” Johnson says.

This is done by providing feed to calves that their mothers do not have access to.

A secondary benefit to creep feeding is that it acts as a pre-weaning aid. Calves become used to eating out of a feeder, which will reduce stress and offer some familiarity in diet and routine once weaning comes around.

Creep feeding doesn’t come without its challenges either. The practice requires additional equipment to provide the feed and producers need to be cognizant of reducing spoilage, keeping feed fresh and that rodents can help themselves to the ration as well.

Once producers weigh the pros and cons, it’s time to pencil out the cost of gain.

“Historically, when we looked at research data we did not find it cost effective when comparing cost of gain to the value of a weaned calf. Now, the current cattle market we are in is a game changer,” Johnson says.

Creep feeding is a practice he pencils out for his own cattle each year to determine if it financially makes sense.

“We were putting gain on for far less than the gain was worth and were simultaneously experiencing a drought. It penciled out for us last year,” he says.

One consideration sometimes forgotten about is that not all added weight on calves is created equally.

“In some cases that additional weight results in over conditioning, which results in a discount in the marketplace,” Johnson explains.

If creep feeding does pencil out for ranchers, they should consider the quality of their grass and age of their calves when deciding the ideal protein and energy levels of the feed. The length of the feeding period should also be factored.

Johnson says, “You can creep feed one to two months prior to weaning and can see adequate benefit compared to feeding for extended periods.”

If creep feeding doesn’t look like a profitable practice but producers still want to provide calves with feed that their mothers don’t have access to, creep grazing is another option to consider.

“If there is the possibility to have an area of pasture that only calves have access to, you can also get an effective cost of gain,” Johnson says.

Remember that only you can determine what is profitable for your operation and that input and cattle prices vary from year to year.

“One of the things I love about the beef industry is that we raise cattle in a variety of production environments and nothing is a one-size-fits-all practice,” Johnson says. “So, I encourage people to put pen and paper to their practices to see what works for them.”

Your next read: Protecting Your Profits With Price Insurance

Upside of a Short Calving Season

Tue, 27 May 2025 12:46:24 GMT

There are several benefits to a short calving season including simplifying cow management, gaining efficiency of labor management, increasing weaning weight and improving uniformity/marketability of the calf crop. Collectively all these advantages lead to one positive potential impact: improved profitability.

CattleFax survey data of cow-calf operations sorts participants into three groups: high, average and low profitability. The high profitability group had a shorter calving season with a higher percentage of cows calving in the first 45 days. The shorter calving season creates opportunities to gain efficiency in several areas of management and these operations were able to sell more pounds of while keeping expenses down.

Obviously, more calves born earlier in the calving season equates to more pounds at weaning. What is the value of a single cow calving one heat cycle earlier? If calves gain about 2 lb. a day from birth to weaning, in the current market with a pound of weaning weight valued in excess of $3, the added 40 lb. of weaning weight is worth at least $120 per cow.

The added benefit of uniformity also improves marketability of your calf crop. Calf buyers prefer to buy load lots of uniform calves so they can be managed similarly. Calf crops with substantial weight variation will be discounted in the market place.

Address the following questions to achieve a shorter breeding season in 2025 and a shorter calving window next spring:

Do you have ample bull to female ratios in each breeding pasture?
What is the age of your bulls and the number of females they should be expected to cover?
Are you managing your 2-year old pairs separate from your mature cows to insure proper development, body condition and potential to breed back quickly?
Have all your bulls passed a breeding soundness exam prior to turn out?
Is your cow herd in adequate body condition? Is supplemental feed needed?
Have you considered an estrous synchronization protocol to tighten your breeding season?

Your Next Read: Unlocking Success with Cow Herd Health Metrics: A Scorecard Approach

Unlocking Success with Cow Herd Health Metrics: A Scorecard Approach

Fri, 23 May 2025 15:12:10 GMT

Tracking performance and evaluating herd success is a year-round process. Similar to tracking athletes, consider developing a scorecard to monitor your herd. Understanding how your herd is performing throughout the year is important when considering management, nutrition and culling decisions.

The first scorecard suggested was post-calving ; the next one to consider is herd health metrics. Illness and death loss in a cow herd are situations cattle producers must routinely address.

To help producers know where their herd health metrics should be, experts at Kansas State University’s Beef Cattle Institute offered some guidelines during a recent “Cattle Chat” podcast .

“The first metric in cow-calf operations that I look at is the first treatment response percentage,” says Brian Lubbers, K-State veterinarian.

He recommended producers aim for an 85% to 90% treatment success rate when treating one of the most common illnesses: Bovine Respiratory Disease, also referred to as BRD. He says that metric can be deceiving.

“Producers who aggressively treat BRD cases are likely treating some animals that didn’t have BRD, and that leads to a high spontaneous recovery rate,” Lubbers says. “If you are seeing a 100% first treatment success rate, you may be treating some animals who didn’t need the treatment. Very high treatment response rates should at least trigger a conversation with your veterinarian about case definitions.”

K-State veterinarian Bob Larson says another metric that producers should be aware of is the percentage of death loss in the calves. During the first year of life, there are three key times when calves are more susceptible to death: at birth, between birth and three weeks of age, and from about one month to weaning, he says.

For each of these periods, producers can expect a 1% to 2% loss, Larson explains, however, that percentage will vary from year to year.

“In the first year of life, difficult births, scours and pneumonia are some of the reasons that calves get seriously ill and sometimes die,” Larson says.

K-State beef nutritionist Phillip Lancaster says what he monitors in the herd is the body condition of the cows.

“If the cows are receiving good nutrition and maintaining their body condition, that is an indicator of the overall health of the herd,” Lancaster says.

Along with those metrics, Logan Thompson, K-State beef cattle extension sustainable grazing specialist, recommends producers treat the herd against parasites as part of an overall wellness program.

“Treating the herd against parasites is an easy win from a production efficiency and cattle longevity standpoint, and it increases the rate of passage of grass through the rumen,” Thompson says. “It is a hard metric to measure, but in some herds, cattle that are treated for parasites have an increased efficiency between 20[%] to 30%.”

In summary, the key takeaways from the podcast are:

Health metrics are multifaceted and require careful tracking.
Different perspectives (veterinary, nutritional, sustainability) offer comprehensive insights.
Metrics should be specific, measurable and contextualized.
Collaboration with veterinarians is crucial for effective health management.

Your Next Read: Early Shedding Cows Produce Heavier Calves at Weaning

Early Shedding Cows Produce Heavier Calves at Weaning

Wed, 21 May 2025 17:13:50 GMT

Early summer hair shedding is a proven trait of economic relevance for producers in areas of increased heat and humidity and those grazing endophyte-infected (hot) fescue. University of Missouri research indicates hair shedding is important to more than just Southern cattle producers.

“Animals who shed their winter hair coat sooner are less likely to be exposed to heat stress in the summer,” says Jamie Courter, University of Missouri beef genetics extensions specialist. “These animals are also more likely to wean heavier calves and remain productive in a herd, for longer.”

Figure 1 shows the average weaning weight of calves born to dams who began shedding their winter coats between March and July. The average weight of a calf born to a dam that shed in March was 57.2 lb. heavier than those that shed in July.

Figure 1 shows the average weaning weight of calves born to dams who began shedding their winter coats between March and July.

(University of Missouri)

Research at the University of Missouri has found a relationship between hair shedding scores and length of daylight. Thus, hair shedding may serve as an indication of an animal’s ability to sense and respond to their environment.

Courter says the relationship makes hair shedding useful for producers outside the Southern U.S.

Hair-shedding Scores

Hair-shedding scores represent a visual appraisal of the extent an animal has shed their winter coat. Reported on a scale of 1 to 5, the lower the assigned score, the more hair an animal has shed. Half scores, such as 3.5, are not reported.

Hair shedding scoring system.

(. Adapted from Durbin et al., 2020. Genetics Selection Evolution 52:63)

Cattle tend to shed hair from the front to the back and from their topline to their belly (Figure 3), but there is individual animal variation in this pattern. Typically, animals begin shedding around their neck, followed by their topline. The last spots to shed are an animal’s lower quarter above its hock and its underline.

Figure 3. Diagram of typical hair shedding regions in cattle aligned to their hair shedding score. Cattle shed from head to tail, top to bottom, with some variation. Numbers represent areas where hair would be expected to shed for a given score.

(University of Missouri)

Courter says the time to evaluate cattle for hair shedding will vary by geographical location and environmental conditions. Animals should be scored when the most variation exists within the herd.

“There should be a few animals who receive a score of 1, a few who score a 5 and a majority receiving a hair shedding score of 3,” she explains.

Cattle begin shedding their winter coat in late spring through the summer. For many locations, mid-May has been identified as an ideal hair-shedding evaluation period. The hotter and more humid the climate, the earlier in the spring scores should be collected.

Hair shedding is a moderately heritable trait (h2=0.35 to 0.42). This means that incorporating a hair-shedding score into culling and replacement heifer selection decisions will result in genetic change over time.

“Although hair shedding has traditionally been associated with heat stress and fescue toxicosis, recent research shows this quick and easy phenotypic assessment of cattle could be a trait of even more economic importance,” Courter says. “With its moderate heritability, combining this score with a hair shedding EPD or score on bulls would result in positive genetic progress over time.”

Your Next Read: Spring Pastures Alert: Be Aware of Frothy Bloat Risk

Cow Herd Scorecard: Evaluating Performance Post Calving

Wed, 14 May 2025 14:27:24 GMT

pregnancy percentages
death loss
calving ease/calving complications – prolapse or retained placenta
udder scores
body condition score
mothering ability and disposition
calving interval

Two areas Warner tells producers to focus on are the number of live calves born compared to the number of cows exposed to bulls at the start of the breeding season; and the number of cows that became pregnant early in the breeding season.

A top priority for Bob Larson, K-State veterinarian, is to have calves born early in the calving season.

“The goal is to have 65% of the calves born in the first 21 days, and 85% to 90% of the calves born within the first 42 days of the season,” Larson say. “If that happens, I know that the cows were in good body condition at the start of the breeding season and the bulls were fertile.”

Larson references USDA’s National Animal Health Monitoring Service (NAHMS) for national averages on abortion and calf death loss.

“The national average is between 1% to 2% for calf death loss and that will vary from year to year within the same operation,” Larson said. “If the producer is calving out a high percentage of heifers, that can influence the calf death loss percentage.”

Scorecard Prep
Ron Lemenager, Purdue professor and beef Extension specialist, suggests producers consider creating a spreadsheet to calculate important percentages, prior to filling out their postcalving scorecard.

He encourages producers record and monitor these numbers each calving season:

Number of cows exposed
Number of cows pregnant
Number of cows pregnant / Number of cows exposed = % Pregnant
Number of pregnant cows kept to calve
Number of cows that calved
Number of cows that calved / Number of pregnant cows kept to calve = % Calving
Number of Live Calves
Number of Live Calves /Number of cows that calved = % live calves born
Number of live calves after one month
Number of difficult or assisted birth (dystocia, prolapse)
Number of cows with bad udders
Number of cows BCS 5 or 6
Number of cows with poor disposition and poor mothering ability
Number of cows that calved in the first 21 days
Number of cows that calved in the second 21 days
Number of cows that calved in the third 21 days
Number of cows that calved after 63 days

Lemenager explains using the spreadsheet to calculate the percentages can help producers identify specific problem areas in their calving and breeding processes and allows them to troubleshoot their herd’s breeding performance.

“Tracking herd performance allows producers to zero in on their problems and determine what issues are really facing the herd,” he summarizes.

Understanding the challenges facing a cow herd can help producers determine what nutrition or management strategies can be used to improve their herd’s postcalving scorecard in future years.

Your Next Read: Spring Cattle Processing Tips to Enhance Herd Health and Diminish Stress

BVDV: A Threat The Beef Industry Can’t Afford to Ignore

Tue, 06 May 2025 19:43:33 GMT

Some veterinarians and producers think of bovine viral diarrhea virus (BVDV) in narrow terms – as the virus that causes persistently infected (PI) cattle. And while that perspective is correct, Dr. Thomas Passler, DVM, PhD, says there are broader implications for BVDV and its impact on cattle and some other animal species worldwide.

“(BVDV) has evolved over the years and is not a single virus or just a diarrhea-causing problem. Today it’s made up of three related viruses and 19 subtypes that cause similar diseases,” explains Passler, the Jack Rash professor of internal medicine for food animal medicine at the Auburn University College of Veterinary Medicine.

“It’s a sneaky, insidious disease,” he adds.

Passler estimates 0.5% of U.S. cattle are persistently infected by BVDV. Of that percentage, only a small number of those animals become PI cattle – a result of infection caused during fetal development between 40 and 125 days of gestation and which persists during the animal’s entire life.

The PI problem differs from transient infection (TI), which occurs when an animal becomes infected after birth. A TI animal is infected temporarily, but during that time is capable of shedding the virus and transmitting it to other herd members or pen mates.

Multiple Health Issues And Losses Across Species
BVDV-positive animals, especially PI cattle, significantly impact U.S. herds by causing immunosuppression, weakening immune systems and making herd mates more susceptible to other infections. Passler says that immunosuppression often manifests as increased calf death losses from diseases such as scours and pneumonia, as well as poor weaning weights.

Passler adds that he has seen similar problems from BVDV in other animal species, including hogs, white-tailed deer, alpacas and goats.

BVDV is one of the costliest bovine diseases for beef producers and dairy producers, as well. Losses average between $15 to $88 per head, conservatively, according to Indexx Laboratories , citing older data from 2002 and 2008.^1-3

Despite the associated costs, a 2017 National Animal Health Monitoring System (NAHMS) study of 75 U.S. cow-calf producers (the summary was released in 2023) reported only 57.5% of participating producers said they knew some basics or were fairly knowledgeable about BVDV. In addition, 26.9% of producers said they “recognized the name but not much else,” and 15.3% of respondents said they had never heard of it (see Figures 1 and 2).

Furthermore, most BVDV infection problems in cattle herds go unnoticed since 70% to 90% of BVD infections are subclinical (do not result in observable disease), according to the Washington Animal Disease Diagnostic Laboratory .

The Beef 2017 study was conducted in 24 of the nation’s major cow-calf States. In 2017, operations in these states accounted for 86.6 percent of the U.S. beef cow inventory and 78.9 percent of all U.S. operations with beef cows.

(NAHMS)

Only 24.4% of the cattlemen surveyed said they are “fairly knowledgeable” about BVDV.

(NAHMS)

Contributing Factors To PI Cattle
Direct contact with infected animals and with contaminated fomites (water buckets, calf feeders, feed bunks, IV equipment, etc.) are common ways BVDV gains a foothold in a herd.

One risk factor that often flies under the radar is the use of intranasal vaccines that do not address BVD viruses, reports Dr. Dan Thomson, PAC veterinarian and Iowa State University professor emeritus.

“We’re using a lot more intranasal vaccinations, thinking that we’re covering for BVDV when we’re actually not,” says Thomson, who spoke with Passler recently on an episode of DocTalk.

It’s a perspective Passler says he agrees with. “We see mucosal disease in the clinic – something we shouldn’t be seeing at all – and often from herds that vaccinate,” he adds.

Intranasal vaccines for respiratory disease do not currently contain BVDV Type 1 & 2, so a separate injectable BVDV vaccine is required, according to Craig A. Payne, DVM, and Celeste Morris, DVM, respectively, at the University of Missouri. Payne and Morris discuss this contributing factor further in their online article, Vaccination Program for a Cow-Calf Operation .

Key Into The Correct Timing To Test Calves
Payne and Morris recommend that “because PI animals are so detrimental, the standard recommendation in herds where BVDV is suspected is to implement a testing strategy and remove any PI animals detected. Vaccination alone cannot counter the effects PI animals can have.”

Specific to calves, Passler says it’s important for veterinarians to let producers know the timing of the testing can impact results – maternal antibodies can skew the results.

“Either test the calf as soon as it hits the ground, before it can nurse, or wait at least a week or [even up to] a month later,” he advises.

He encourages practitioners to talk with cow-calf producers about testing calves to identify BVDV.

“A lot of people don’t test until those animals are stockers or going to the feedlot, and that’s too late,” Passler says. “We want producers to test earlier so they can remove PI cattle sooner.”

Evaluate Vaccines And Protocols
There are two main types of vaccines for BVDV: modified-live (attenuated) and killed (inactivated).

The most significant value for beef producers in using a vaccine that addresses BVDV is being able to protect a dam’s fetus, Passler says. But no vaccine is perfect, he adds, noting producers must also be diligent with their management practices.

“What we have seen here in the clinic is that even in well-vaccinated herds – those we know use killed vaccines religiously – they still get PI cattle if they’re not careful about biosecurity,” he says. “These might be herds that religiously vaccinate, but they still go to the stockyards and buy replacements or take some other sort of risk.”

As for vaccine use protocols, Passler says his review of other researchers’ work indicates it’s best if producers use at least one modified live vaccine and then an inactive (killed) vaccine to vaccinate cows and heifers.

“I’d probably [vaccinate] two cycles and well before gestation, because vaccine seems to reduce fertility a little bit,” he says. “Some researchers say 42 days in advance [of gestation] is a good number to use”

Another practice Passler advises is using products from more than one manufacturer. “Different manufacturers use different vaccine strain viruses, so you might increase endogenic exposure,” he explains.

Thomson supports that recommendation. “We do that when we deworm, we do it with how we treat bacteria, so why wouldn’t we do that to prevent BVDV? That’s great advice,” he says.

Your next read: Can Oxytocin Boost Colostrum?

References

1. Bartlett B, Grooms D. BVD-PI eradication: unintended consequences. Michigan Dairy Review. 2008;13(3).

2. Chi J, VanLeeuwen JA, Weersink A, Keefe GP. Direct production losses and treatment costs from bovine viral diarrhoea virus, bovine leukosis virus, Mycobacterium avium subspecies paratuberculosis, and Neospora caninum. Prev Vet Med. 2002;55(2):137–153. doi:10.1016/s0167-5877(02)00094-6

3. Ridpath J. Why BVD is a tough problem. Hoard’s Dairyman. 2002;147:697.

More Than Annoyance: Flies Can Impact Health and Profits

Tue, 06 May 2025 15:16:34 GMT

With fly season approaching, now is the time to evaluate and refine your fly management plan for 2025.

“If your 2024 control efforts underperformed, consider adjusting your approach,” says David Boxler, Nebraska Extension livestock entomologist. “The best control method will depend on several factors including efficacy, cost, convenience and your current herd management practices.”

He also reminds producers that horn flies can migrate from neighboring untreated herds, masking the effectiveness of your efforts and increasing fly pressure. For this reason, Boxer recommends a comprehensive, integrated fly control.

The horn fly is one of the most damaging pests of pasture and rangeland cattle across the U.S., Boxler says in a recent “ UNL Beef Watch .”

“Adult horn flies are blood-feeding insects that take an average of 30 blood meals per day,” he says. “Their populations can build rapidly and often exceed the Economic Injury Level defined as 200 flies per animal. Once fly numbers surpass this threshold, cattle experience reduced weight gain and milk production due to fly-induced stress and altered grazing behavior.”

Observing your cattle during summer months is key to detecting fly pressure. Boxler asks, “Are they constantly tossing their heads, swishing their tails or twitching their skin?”

These signs of fly irritation indicate a more effective control strategy might be needed.

“If you are seeing flies, ticks, lice or insect damage to your cattle herd, we know there is an economic impact; however, that impact can become far greater than production or weight gain loss alone,” says Ashby Green, DVM, Neogen senior technical services veterinarian. “Insect pressure affects grazing patterns of cattle, it affects their comfort and it can lead to health issues. Some of those health issues can be definite, such as anaplasmosis.”

The vectors responsible for spreading anaplasmosis include horse flies, stable flies and ticks. This condition has been reported in most states across the U.S., while the disease has been recognized as endemic throughout the South and several Midwestern and Western states.

“With horn flies, we’re looking at mastitis risk, so that’s going to impact both dairy cattle and also our cow-calf operations,” says Jonathan Cammack, Oklahoma State University assistant professor and state extension specialist. “A lot of times, horn flies will feed on the udders of the animals, and they transfer the Staphylococcus aureus bacteria because they land on the manure, then they go back to the animal to feed and bring those bacteria with them.”

Several other conditions are propagated by flies or ticks, including pinkeye, which can be spread by face flies and causes inflammation and ulceration of the eyes. Pinkeye-affected calves are, on average, 35 lb. to 40 lb. lighter at weaning compared to healthy calves, according to a University of Kentucky report.

Cammack says that due to flies, “We’re looking at probably $6 billion in losses annually to U.S. cattle production, and that encompasses everything from actual loss in production due to decreased weight gain or decreased milk production, veterinary needs associated with treatment of cattle with exposure to pathogens from some of these insects, and then also the control measures associated with managing those individual fly species.”

Ticks present economic risks as well. Cammack says that during a 100-day growing period producers can see a decrease in total weight gain in calves by about 20 lb. For stockers, over that same 100-day period during the summer months, they can experience a decrease in weight gain by about 60 lb.

“With what current prices are, 60 lb. could translate to a significant amount of money returned when we’re talking about the few dollars that it might cost for some tick control,” he says.

(Neogen)

Controlling flies and insects: Tips to implement
Now is the time to take steps to control flies and ticks, as populations emerge with the warmer weather.

In “ Stopping Flies in 2025: Tips to Battle These Economic Pests ,” Cassandra Olds, Kansas State University Extension entomologist, shares four steps to controlling flies

Know what flies you’re dealing with.
Reduce populations.
Eliminate breeding grounds.
Consider chemical control options.

Similar to Olds, Green recommends using a multi-pronged approach to insect control. Fly tags, feed-through insect growth regulator (IGR) products, pour-ons, back rubbers and dust bags can help diminish the population. A pour-on with an IGR destroys the larval development in flies and greatly reduces the fly population. For ultimate control using a pour-on, look to a unique combination of actives within one solution that includes an IGR, an adulticide, and a synergist that supplies relief to cattle from infestations and provides producers with a reliable solution that helps minimize handling, time and labor costs.

“Both back rubbers and dust bags can be highly effective if managed correctly. Keep in mind, when these are put out to withstand the elements, including moisture and rain, it’s key to keep the dust fresh or the oil recharged in your back rubbers. Otherwise, they will diminish in their ability to control flies quickly,” Green advises.

Cammack stresses the importance of accurate dosing by the individual animal’s weight and following label guidelines.

To best control flies and insects on cattle operations, “the easy and effective way is the best way,” Green summarizes. “It’s up to you and with the help of your veterinarian to help create that combination.”

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Streamline Spring Cattle Processing with These 3 Stress-Reducing Steps

Thu, 01 May 2025 11:23:00 GMT

Reducing stress during livestock handling can increase productivity, maintain or improve meat quality, reduce sickness and enhance animal welfare. Implementing low-stress handling techniques when working with cattle is important to reducing stress.

As producers prepare for spring processing, Beth McIlquham, University of Wisconsin-Madison regional livestock educator, encourages producers to consider these low-stress handling strategies.

“While temperament in cattle is moderately heritable, environment does play a role and even cattle that are less docile will benefit from low-stress handling methods,” Mcllquham says. “A good handler can help reduce fear in an animal, which is the primary driver of negative consequences associated with handling stress.”

Even if the animal is not experiencing any pain, fear can still cause physical responses in the body, such as high cortisol levels. These responses can ultimately lead to increased susceptibility to illness, lower meat quality and overall lower performance.

Mcllquham says one negative handling experiences can affect future handling situations.

Identifying stress through body language
Cattle in a state of fear or under stress can be identified through their body language. Obvious signs of fear in cattle are running, kicking, vocalizing and aggressive behaviors toward handlers. Subtle signs of fear are heavy breathing and showing the whites of their eyes. Stressed cattle can cause serious injury to themselves and humans. Relaxed cattle are quiet and walk or trot calmly. When low-stress handling techniques are used, the risk of injury is lowered.

“Besides increasing performance and lowering sickness and injury rates, consumers have indicated that they care that their food is humanely raised,” McIlquham explains. “Implementing low-stress handling is a great place to start and comes with many other benefits. Although it may sound like a daunting task, utilizing low-stress handling techniques can be done in smaller steps.”

Step 1: Put away the electric prod
“Our first step is to put away the electric prod,” she says. “To decrease use, place electric prods away from where you’re handling cattle but still be accessible in an emergency. This way, instead of instinctively reaching for it, the inconvenience of going to grab it can decrease electric prod use.”

Step 2: Understand cattle’s natural instincts
“We should utilize these instincts to work for us instead of against us,” she says. “The fact that cattle are prey animals drives a lot of their behaviors.”

Cattle are herd animals and like to be in groups. When moving them, keeping cattle in small groups (two to five head) can help keep them calmer and easier to handle. Additionally, cattle want to see you. Humans are naturally predators, and because cattle are prey animals, their instinct is to be able to keep handlers in sight.

Cattle want to go toward lighted areas and will resist going into darker areas. It is easier to see any potential threats in areas that are light. Keep in mind shadows can reduce cattle flow through an area.

Step 3: Study and use cattle’s natural flight zone
Good handlers study and use cattle’s flight zone and point of balance, McIlquham explains.

Two concepts are illustrated in Figure 1.

Figure 1. Flight Zone and Point of Balance

(Beef Quality Assurance Cattle Care & Handling Guides)

Walking into the flight zone makes the animal move away from the handler. Stepping out of the flight zone will take pressure off and remove the animal’s desire to continue to move away. Note that the size of flight zones varies between animals. The point of balance allows handlers to move the animal forward or backward. Stepping into the flight zone in front of the point of balance will make the animal move backward. Stepping into the flight zone behind the point of balance will drive the animal forward.

Keep in mind cattle have a blind spot directly behind them. If you approach the animal in the blind spot, they could get spooked. Walking in a zigzag pattern behind cattle helps let them know you are there.

Extra tip: Taking breaks
Calm cattle are easier to move than stressed cattle. Fearful cattle are more reactive, more easily injured, and more likely to engage in aggressive behaviors. If a handling situation does get intense, take a little break and release pressure on the cattle.

“Even taking a brief break can help both the animal and handler calm down and come back to the situation in a more positive light,” Mcllquham summarizes.

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Mild Winter for Calving Helps Protect Valuable Asset

Thu, 24 Apr 2025 15:30:00 GMT

The nation’s cattle herd is at a 73-year low due in large part to the historic drought that hit prime cattle production areas. However, Mother Nature was fairly kind during the calving season this year, at least in states such as Iowa.

“In general I think this was one of the nicest calving seasons we’ve had for a while,” says Dr. Brett Terhaar, a technical service veterinarian for Elanco Animal Health, in Winterset, Iowa.

Healthy and productive calves are a huge asset for producers, especially with historically high prices. One lost calf can translate into a financial hit for a cattle operation.

“I have seen minimal problems with scours and pneumonia. I think this set of calves moving to grass is as good as I’ve seen when I look back over the last 10 years,” Terhaar explains.

Management is still the key to disease prevention and ensuring calf performance, he says, but a comprehensive vaccination program provides a good return on investment.

“I can’t make a vaccine that can overcome poor management. So that’s No. 1, animal husbandry. But vaccines are important,” Terhaar adds. “I don’t want to over-vaccinate, but we want to do the basics, and make sure those are done in a timely fashion.”

A mild winter has also been beneficial for cow health and body condition.

He says cow culling has slowed in areas not facing lingering drought but herd rebuilding and heifer retention is also slow.

“Are we seeing heifer retention? I don’t know that it’s much above just maintenance,” Terhaar says. “I think people are enjoying these big prices, so they’re taking the cash for heifers and taking it to the bank, which is probably smart. But at some point, we have got to keep some heifers and make some cows.”

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Calving Tips: Dealing with Protective Moms

Fri, 04 Apr 2025 14:48:26 GMT

As spring calving season continues, producers continue to monitor and assist when needed as their next calf crop hits the ground. Dealing with protective moms can be a challenging situation, two industry leaders and a producer share their tips on how to prevent and cope with the situation when faced with an unruly cow.

The first 24 hours is a key time in the newborn’s life. Ron Lemenager, Purdue beef specialist, says calves older than 24 hours are typically hard to catch, so if you plan to process the newborn, it should be done as soon as possible after birth.

“Outside of colostrum, I don’t often talk about some of the other chores that might need done in that time period,” says AJ Tarpoff, Kansas State University Extension veterinarian. “Simply because it’s different for every operation.”

Work as a team: It’s hard to know if you are in danger without someone watching your back. One person can entertain the cow, while the other can tag or accomplish what is needed.”

(Angie Stump Denton)

Depending on your management program, producers may choose to perform some of these tasks in the first 24 hours: tagging, castrating, dehorning, taking birth weights, giving selenium injections or recording calf information in a calving book.

It might be necessary to use nutritional supplements/injectables depending on the operation and cow status. Tarpoff encourages producers to discuss proper products and protocols to use at calving with your veterinarian prior to the first calf hitting the ground.

Commercial cattle producer Tyler Tobald, JTAC Farms, Glasco, Kan., shares his process for newborn calves.

“In the first 24 hours after calving, I will usually put ear tags into the calf,” he says. “If the calf is a bull, I band it. Then, I give the calf some oral vitamin A, D, E, B12 gel while I use a leg band to get its weight. We rotate our calving areas in different parts of the pasture and attached field. After I’m all done tagging, I enter the calf into CattleMax and record any other notes about the cow and calf that I deem important to know for the future.”

Obviously, cow behavior can be a factor when processing a newborn. Just like the video published with this story, sometimes a protective mom decides she is not happy with a producer touching her calf. Tobald says his goal is to keep a cow’s stress levels down as much as possible.

“I check the pair out on a side-by-side,” he explains. “When I roll up, I try to be as quiet as possible and not just zoom up on them. After that, I try to be as quiet as I can. I don’t hoop, holler, talk or anything that will add stimulation to an already stressful situation. I also always keep the cow in front of me as best as possible. The last thing I want is for an amped up 1,300-lb. animal behind me where it can sneak attack me.”

Tobald says his philosophy on dealing with cows, even the over-protective ones, is using the most important of the Roadhouse Rules: Be nice until it’s time to not be nice.

“Thankfully this is a very rare occurrence,” he says. “I make notes of any cow that is over-protective, so I know what I’m dealing with when I approach them in the future. But if the cow gets more aggressive the next year, then the calf doesn’t even get tags and gets loaded into a trailer with the cow and they go to the sale. Life is too short for crazy or mean cows.”

Lemenager explains that right after a cow gives birth, her hormones are raging.

“That’s part of the process that helps her bond to that calf,” he says. “She also needs to stimulate the calf, so it gets up and nurses. If any part of that natural process is interrupted, the cow can become very aggressive.”

Tarpoff shares these tips for dealing with overly protective mother cows.

Have some type of physical separation from mom. This might be a fence, panel, gate, truck, side-by-side. “The only truly safe location is to have a physical barrier between you and the cow while working with the calf”
Work as a team. “It’s hard to know if you are in danger without someone watching your back. One person can entertain the cow, while the other can tag or accomplish what is needed.”
Be efficient and thoughtful with the calf manipulation. “It only takes one painful bellow from the calf to set the cow off. Save potentially painful manipulations until last (ear tags or castration).
Be smart. “Don’t assume cows are faking a threat. When in doubt, always take the safe approach. The chore can always be completed later if the cow is on the fight. Keep records and plan to handle the situation when she calms down.”
Stay safe. “If we get injured, we put stress on the rest of our family and operation.”

Different strategies can help keep the producer and calf safe during newborn processing.

“Some ranchers use a cage on the side of their ATV,” Lemenager explains. “This allows for bringing that calf into the cage while handling it. Another option is to have two people working with the calf. One to care for the calf and the second to keep the cow away.”

If you are going to try to move a calf to another location, an option is a polypropylene plastic sled or a calf carrier on an ATV (calf sling). Lemenager says a cow will typically follow because she can smell and see her calf.

“Ideally, when working with a cow-calf pair, I try to keep the calf between me and the cow,” Lemenager says. “Most, but not all cows, are calmer and less aggressive when they can see and smell their calf.”

Lemenager summarizes a key to improving your cow herd behavior is to consistently use low-stress handling to help desensitize cattle to the presence of people.

Follow Tobald or JTAC Farms on Facebook or TikTok for more examples of low-stress handling and cow management.

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Build A Biosecurity Plan Like You Would Eat An Elephant – One Bite At A Time

Thu, 13 Mar 2025 16:31:30 GMT

If biosecurity plans were easy to develop, perhaps most U.S. beef producers would have done one long before now, but there is no easy button for such a plan, and the task can be daunting.

The best strategy to get started is to tackle the challenge like you would eat an elephant, says Lisa Pederson, Extension beef quality specialist with North Dakota State University (NDSU) and North Dakota beef quality assurance (BQA) coordinator. How do you do that?

“One bite at a time,” she says.

Pederson addressed how to develop a practical biosecurity plan in a recent webinar, “Building A Resilient Cowherd,” which was sponsored by the National Cattlemen’s Beef Association (NCBA). The webinar also featured Dr. Julia Herman, NCBA beef cattle specialist veterinarian, and Casey Fanta, seedstock manager for Wulf Cattle, based in Morris, Minn.

Prevention Beats A Cure
Biosecurity is the cheapest and most effective means of disease prevention, according to Pederson. She points out that trichomoniasis is a good example of a disease where biosecurity is the most important preventive measure.

(Lindsey Pound)

Herman shares three benefits of biosecurity: 1. Fewer disease challenges mean better animal health. 2. A decreased germ load also results in better animal health. 3. Better animal health means improved potential for economic gains.

Financial implications
Pederson says producers who might have balked in the past about developing a biosecurity plan are more interested today, because of the economic value of cattle.

“Bred cows, four to five years of age, are selling for $2,500 to $3,000 each and maybe more,” Pederson notes. “Bred heifers have pretty easily been selling here in the North for $3,000 to $3,500. All weights of feeder cattle have been selling for $2,000 to $3,000 each. Finished cattle are selling for well over $3,000 a head.”

Fanta says good vaccination and nutritional programs have been foundational to the enduring success Wulf Cattle has experienced in the beef industry.

“Whatever your program is, I feel it’s very important to have protocols in place, a system for the health and well-being of those cattle from the time that they’re born,” Fanta explains. “It all equates to the long-term health and success of your operation.”

Increased risk potential from foreign disease entering the U.S. is another reason veterinarians and beef producers can benefit from developing biosecurity plans.

“The majority of producers have not dealt with a new, highly contagious disease,” Herman says.

The health risks to the beef industry, and the U.S. livestock industry overall, are real and concerning. One is the new world screwworm, which is currently advancing through Central America and into southern Mexico. NCBA has undertaken extensive education efforts with producers in recent months regarding this threat

Another concern, Herman references, is the potential for foot-and-mouth (FMD) disease to enter the U.S. FMD was first discovered in the U.S. in 1870 and eradicated in 1929. Herman says while FMD is not a human health or food safety threat, it would have a significant economic impact on the country’s livestock industry.

This map shows the location of FMD as well as disease-free countries. The disease was found in a water buffalo in Germany in January. More recently, FMD has been found in Hungary.

(WOAH)

NCBA has worked with industry stakeholders on the Secure Beef Supply (SBS) Plan to help producers voluntarily prepare for FMD. If an outbreak does occur, Herman says having an enhanced biosecurity plan in place will help prevent exposing “naïve” cattle to the disease during an outbreak. More information from NCBA is available at Biosecurity Resources

More information specific for veterinarians is available from the American Association of Bovine Practitioners at aabp.org

Producers Need Help
Bovine veterinarians are in a position of trust and leadership to help beef producers understand the importance of a having biosecurity plan and how to create one. Pederson encourages producers routinely to work closely with their veterinary practitioner.

“A strong relationship means more than preg testing and Bangs vaccinating, and calling with calving problems,” Pederson says. “Strong relationship means you use veterinarians for their brains and disease knowledge. Engage them to help you identify biosecurity strengths and weaknesses of your operations.”

For producers who have not started developing a biosecurity plan, it’s a case of veterinarians helping them walk before they can run. Pederson references an elephant cartoon she once found online.

“I like to think about where you can take easy bites of the elephant to eat first,” she says. “Pretty soon, with one bite at a time, you can have that elephant eaten.”

With a biosecurity plan, the point is it can’t be developed all at once, but it can be accomplished one small step at a time when producers, especially with their veterinarian’s help, stick with it until it’s completed.

Five Easy Bites
Here are five factors that are important to consider in a basic biosecurity plan.

1. Help producers identify and develop their team of partners and advisers.
Sit down with producers and talk about the benefits of a biosecurity plan, advises Pederson. Discuss who would be good to include on their team, which might include veterinarians, key employees, nutritionists, Extension specialists, BQA state coordinators, state veterinarian and others.

Build a team that can help you identify risks and how to address them.

(Lisa Pederson)

2. Create a basic communications plan, one that will be straightforward to implement when a crisis does occur.
Help producers create the plan in advance of any crisis, emphasizes Herman.

“We really need to be prepared ahead of time,” she says.

Some of the topics to include in the plan and questions to answer are: Why is there a need to communicate? Who needs to be reached? How will the producer communicate and who with internally and externally? Who needs to know about the plan?

Make sure the plan is written down, so everyone is working off the same document. Also, help the producer decide if the plan needs to be posted in a break room, barn or other facility on the property for quick reference.

3. Address low-hanging fruit. Consider the biosecurity practices that can be adopted with some careful thought but little or limited expense.

The single most important one, Pederson says, is to have separate footwear and clothing for wearing on and off the farm/ranch.

Diseases and pests hitch rides on dirt, dust, manure, critters, shoes, clothes, vehicles and so much more. Remove manure, mud and other organic matter regularly and disinfect as well. As Pederson says: “You can’t disinfect a turd.”

First things to consider implementing are those practices that are of little cost but offer a high reward.

(Lisa Pederson)

4. Have a quarantine/isolation plan for new animals coming on the farm or ranch, whether purchased or acquired.
Isolate new cattle and other livestock for at least 21 days, ideally without the option for nose-to-nose contact. Do not allow for shared feed or water. The isolation can allow you and producers time for observation, testing, vaccination and revaccination, Pederson says.

There are many ways a disease can enter a farm, Herman adds. “Wildlife, rodents and birds are just a few examples,” she says. “That’s why an integrated pest management plan is important.”

5. Help producers adopt good record-keeping practices, if they haven’t done so already.
Pederson says items to keep track of include livestock purchases and sales, as well as livestock movements to exhibitions, rodeos and shows. Good records will be imperative to have should a novel disease outbreak occur, she adds.

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Nalivka: What’s Impacting the Pace and Extent of Herd Building?

Fri, 24 Jan 2025 20:17:13 GMT

U.S. cattle inventory is largely driven by smaller producers with fewer than 100 cows. According to the 2022 Census of Agriculture, 557,075 cow-calf operations run fewer than 100 cows, which accounted for 89.5% of total cow-calf operations and 39.5% of the total cows. In 2022, the total number of operations represented a 15% drop from the 2017 Census. While the operations with 100 cows or less accounted for about the same percentage of the total cow-calf operations in 2022 versus 2017, they accounted for a smaller percentage of the total cows — down from 44% in the 2017 Census.

I have once again thrown a lot of numbers at you, but the point is that from 2017 to 2022, there was a significant decline in the number of operations with fewer than 100 cows and these operations held a smaller percentage of the total cows.

While some operations increased their cow numbers and moved up the scale in the census survey to 100 to 499 cows, there were also many that simply exited the industry. This would have been evident in the 2022 survey when drought and financial issues prompted liquidation. Unlike herd liquidation in previous cattle cycles, many cow-calf producers exited the industry for good. If that is indeed the case, their permanent departure will be a major factor impacting both the pace and the extent of herd building going forward.

The 2022 Census supports movement toward larger operations. The two groups of operations to drop in number were those with a herd size fewer than 100 cows and 100 to 499 cows. All other operations increased in number of operations. While the total number of operations fell from 2017 to 2022, the number of operations with 500 to 999 cows increased 19% from the 2017 survey and 8% from 2012 to 2017.

Expansion or liquidation of U.S. cattle numbers is mostly driven by small operations. I do believe the decline in their number will impact the pace of herd growth going forward.

Cattle Producers Can Create Value Through Strategic Crossbreeding

Fri, 10 Jan 2025 00:15:24 GMT

The challenge of navigating input costs is a familiar one to ranchers across the country. While there are numerous approaches to managing inputs, one that can’t be ignored is genetic selection. Genetic selection impacts efficiency, longevity, and performance in your cow herd and calf crop. It’s the foundation of your herd and operation.

A proven genetic selection strategy cow-calf producers can leverage to increase the value of cows and calves while increasing efficiency is strategic crossbreeding. Crossbreeding can be beneficial for operations of various sizes with different marketing goals. However, ranchers must have a similar mindset about crossbreeding to be successful no matter how different their operations are.

“The two questions ranchers need to ask before they start crossbreeding are, ‘Am I really in the beef business to make money?’ and ‘As a manager, am I willing to be committed to the process and stay focused on the objectives?’” says Bob Weaber, Ph.D. – Professor and Extension specialist at Kansas State University.

Without a strategy, crossbreeding can detract from the value of calves and create marketing challenges. But, with a strategy, crossbreeding has shown increases in growth rate starting in utero, calf survival rate, immune function, average daily gain and longevity in cows.

“The real economic advantage of a crossbreeding system comes from having crossbred cows,” Weaber says. “The increased longevity and offspring performance in efficient utilization of feed is a testament to both system profitability and sustainability.”

The increase in value heterosis brings to the maternal component of a ranch system may shock some cow-calf producers.

“Last spring producers were getting $2.75 for 5 and 6 weight calves in Salina, Kan., which is higher today. At that price, the additional heterosis benefits were worth just short of $300 per cow. That $300 would move you from the bottom quarter to the top quarter of profitability according to CattleFax’s Cow-calf summary data,” says Weaber.

This significant change in value requires focus and strategy to be obtained. Ranchers need to know their marketing objectives in the short and long-term as well as what areas they can improve their cowherd.

“It’s really easy to get focused on carcass endpoint. That’s a huge part of our business and I don’t want to take away from the importance of those dollars. But, if we have to trade off a whole bunch of maternal performance to get there at the individual enterprise level we may not be optimizing the profit potential of the ranch,” Weaber says.

Guest Bob Weaber says a proven genetic selection strategy cow-calf producers can leverage to increase the value of cows and calves while increasing efficiency is strategic crossbreeding.

(Casual Cattle Conversations)

There are a multitude of methods to experience the benefits of strategic crossbreeding. Outside of marketing endpoint, operation size is another key factor to consider before picking a plan.

“What works for someone with 50 cows may not work for someone with 500 or 5,000 cows and vice versa,” Weaber says.

Pasture size and availability also plays a role in the best system for operations.

Larger operations who utilize large pastures on BLM land can garner the benefits of a three or four breed composite system or even a three breed rotation. However, smaller operations can get better bull utilization out of utilizing hybrid bulls or buying maternal replacements and mating them terminal. The latter method has been proven valuable by the pork and poultry industries.

Weaber says, “When we think about crossbreeding systems, it’s important that we also strategically interject breeds at the right spot to leverage the additive genetic merit that comes into play.”

Producers need to think through how they can get the right bulls with the right cows cost effectively.

Other tools to aid in effective crossbreeding systems include artificial insemination and the use of gender sort semen. Gender sort semen reduces the likelihood of raising maternally oriented bulls or steers or terminal heifers for those raising replacements.

Crossbreeding isn’t clean cut in terms of which systems are best, but it is undoubtedly advantageous for commercial cattlemen who are committed to the process of improving the input and output relationship for the overall system of their operation.

Watch the entire episode here:

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New World Screwworm is Moving Toward the U.S.

Wed, 08 Jan 2025 20:15:31 GMT

By Kathy Simmons, DVM, Chief Veterinarian, National Cattlemen’s Beef Association

The U.S. cattle industry has not faced the threat of New World screwworm (NWS) for over 60 years. Currently, the NWS fly, about the size of a common housefly, has migrated across Central America from Panama and entered Mexico.

Live cattle trade to the U.S. from Mexico was halted on Nov. 22, 2024, after a cow in the southern Mexican state of Chiapas was found to have NWS myiasis. Live cattle trade with Mexico will only resume with established NWS mitigation protocols, the holding of Mexican cattle for preventive treatments, and multiple inspections of Mexican cattle on both sides of the border.

At the time of this article, NWS has not been found in the U.S., but this harmful pest can travel on humans, vehicles, pets, livestock and even on some wildlife species — all of which increase the likelihood it could eventually enter our country.

What is NWS Myiasis?

NWS myiasis is the infestation of NWS larvae or maggots that feed on the living tissues of all warm-blooded animals, including humans, and rarely birds. Adult female flies lay their eggs, often as many as 200 to 300 eggs at a time, at the edges of wounds on animals or at the mucous membranes or body orifices. Within 12 to 24 hours the eggs will hatch, and larvae emerge to feed on living flesh by burrowing into tissue, tearing at the tissue with their hook-like mouthparts, like a screw being driven into wood and hence, their name.

The larvae can be difficult to detect for the first 24 to 48 hours, but as larvae feed on tissue, the wound enlarges and drains a serosanguineous fluid. There is severe inflammation and secondary infection as well as the stench of necrotic tissue.

Screwworm larvae pass through three stages (or instars), and they will reach maturity about five to seven days after the eggs hatch. At maturity, the larvae stop feeding and fall to the ground where they burrow and pupate to become adult flies. Adult flies live for two to three weeks in the field. Females mate only once in their lifetime.

Diagnosis, Treatment and Prevention of NWS Myiasis

Laboratory diagnosis of NWS is usually made by identification of the parasites under the microscope. NWS is a foreign animal disease that is reportable to state animal health authorities and to USDA-APHIS. The U.S. is responsible for reporting NWS to the World Organization for Animal Health and to our trading partners.

Before collecting or sending any samples from animals with a foreign animal disease, the proper authorities should be contacted. Samples should only be sent under secure conditions and to authorized laboratories. NWS can infest humans, so samples should be collected and handled with proper precautions. Larvae should be removed from the wound prior to treatment and placed in 80% ethanol for transport to the lab. Formalin should not be used.

Treatment for NWS myiasis generally includes cleaning and debriding the wounds and applying organophosphate insecticides, which are effective against newly hatched larvae, immature forms and adult flies. Carbamates and pyrethroids are also effective against larvae. Antibiotics are indicated if an infection is present. Livestock can also be protected by regular spraying or dipping with insecticides, or by subcutaneous injections of ivermectin and related compounds.

In endemic areas, animals must be inspected for screwworms every few days. NWS myiasis is often fatal in untreated cattle within 14 days.

Whenever possible, procedures that leave wounds (castration, dehorning, branding, ear tagging) should not be performed during screwworm season, and sharp objects should be removed from livestock pens. No vaccine is currently available for NWS.

Eradication from a Region

Screwworms can be managed by repeatedly releasing sterile male flies that mate with wild NWS female flies to produce unfertilized eggs. This process is called sterile insect technique and leads to a reduction in screwworm numbers and eventual eradication.

In addition, infested animals in a region are treated and their movements are controlled. Currently, the U.S. and Panama operate an NWS sterile male fly production facility in Pacora, Panama, through the Panama-U.S. Commission for the Eradication and Prevention of Screwworm, or COPEG, which produces 100 million sterile male flies per week.

The National Cattlemen’s Beef Association is committed to informing cattle producers and their veterinarians about current animal health risks and advocating for cattle health issues in Washington, D.C., on behalf of the U.S. cattle industry.

Click here for more resources.

More information on Bovine Veterinarian:
Protecting the Herd from New World Screwworm

Tips To Help Ensure Heifers Breed Back After Calving

Wed, 01 Jan 2025 11:02:00 GMT

When it comes to first-calf heifers, nutrition matters big time.

“These new moms have incredibly high nutrient requirements,” says Kirk Ramsey, veterinarian with Neogen . “Not only are they still growing, but lactation takes it to a whole new level.”

Ramsey suggests separating and supplementing them away from the mature cows in order to meet those demands.

In addition, body condition score is key.

“Heifers with a body condition score of six at calving are way more likely to breed back on time,” Ramsey says. “Let’s make sure to be tracking that.”

Early breeding season is also a win-win, according to Ramsey.

“Start the season earlier for heifers,” he says. “Heifers bred within 21 days of the first breeding cycle are more likely to breed back. They’re going to wean heavier calves, and it’s even shown that they’re going to last longer in our herd.”

Lastly, producers should address energy demands as early as possible.

“Energy requirements at calving skyrocket almost immediately, and compensating for poor condition after calving is nearly impossible,” he says. “Focus on the last months prior to calving to make any condition adjustments that you need to. By nailing these couple points, we boost their breeding success, leading to a healthier herd, heavier calves, and a more profitable operation.”

Your next read: Calving Signs in Cows and Heifers

7 Ways to Help Beef Producers Evaluate Potential Replacement Heifers

Mon, 02 Dec 2024 19:19:13 GMT

Given the price of replacement beef heifers today, one of the questions veterinarians are helping cow-calf producers address is whether it’s a better decision to raise their own calves for replacements or buy them.

The answer, like with many complex decisions, isn’t a simple yes or no, according to Dr. Ray Stegeman.

The Missouri veterinarian says he has cow-calf producers who do raise their own replacements, but it’s not a practice he recommends for everyone.

“I work with quite a few smaller family farmers who keep heifers and are successful with that. But they know the mama cows and everything about them going back 50 years, which has merit,” says Stegeman, who owns Osage Veterinary Clinic in St. Thomas, Mo., and is a member of the Production Animal Consultation (PAC) network. “But if a producer is just starting out, it’s often advisable to buy bred heifers, given the economics of developing a heifer and the time involved.”

Stegeman, referencing research at Texas A&M and University of Nebraska, says a 200-cow herd size is often a practical starting point for deciding whether buying or raising replacement heifers is the better option.¹

Size Of Calf Crop And Resources

There are several reasons why a 200-head cowherd is a good minimum threshold. For one thing, there’s a large enough calf crop born to provide an adequate number of high-quality prospects for the farm. Three other considerations: this size of operation often has adequate manpower, physical facilities and land necessary to make the undertaking feasible and worthwhile.

“I think we tend to overlook or not realize the costs and resources that go into developing a replacement heifer,” Stegeman explains. “For example, you need to have enough pasture available, you have to keep a bull away from these heifers and raise them separate from the cowherd, and that takes additional resources.”

Here are seven additional factors Stegeman, other veterinarians and beef Extension specialists take into consideration as they work with cow/calf producers who are raising their own replacement heifers.

1. Monitor calves early. Stegeman advises his producers to start looking at their prospects during preweaning, managing nutrition proactively to prevent underfeeding or overfeeding.

“Everyone wants to pick a good-looking heifer, but you don’t want the heifer still on the mother cow to get too fat,” he says. “If we’re creep feeding, we want to watch our starch. If that heifer is too fat at weaning that in and of itself can be a setback.”

Heifer calves that are too fat have been shown to have reduced milking ability once mature, according to Oklahoma State University Extension research. Mammary development is in a critical stage from 2 months of age until about 9 months, or just before puberty.²If a calf is storing considerable amounts of extra fat during that time, excessive fat can be deposited in the mammary gland and inhibit its development.

Stegeman adds if the calf has too much body fat that has the potential to cover up physical defects, which might only be discovered after the producer decides to retain the calf.

In addition, Stegeman likes to talk with producers about nutrition and environmental factors the dam experienced while carrying the calf. He considers whether the mother cows were subjected to drought conditions or inadequate nutrition or other environmental factors.

“Fetal programming factors can result in potential negative productivity in the heifer calf following it through to maturity,” he tells Bovine Veterinarian.

2. Heifer calves born earliest are usually the top picks. Older heifers are more likely to reach the desired target weights by the start of breeding. Early puberty is moderately to highly heritable and positively related to future reproductive efficiency.

“Fertility is driven by genetics, so much so that it’s very important to pick those heifers born early in the calving season as replacements” Stegeman says.

During the selection process, producers with their veterinarian’s help, should look for heifers that are structurally sound, have a wider structural frame and a body type of more rib shape and depth, recommends Mark Z. Johnson, Oklahoma State University Extension beef cattle breeding specialist.³

Johnson adds that fleshing ease equates to breeding females that can better maintain body condition and energy reserves on a given amount of feed.

3. Consider genetic merit. Genetics are an important consideration, as producers plan the type of heifers they want to raise and keep and the traits needed to meet their goals.

“I think one of the problems with the beef industry today is that we’re choosing heifers from the steer pool of genetics – we’re choosing heifers out of carcass genetics,” he says. “There’s opportunity in the beef industry to have maternal herds producing genetically superior replacement females for cow/calf operations to purchase, which will be important going forward.”

4. Put prospective replacements on pasture, once they’re weaned. “We like to develop heifers on the pasture that they’re going to see as an adult cow,” Stegeman says. “They essentially program themselves, and after they calve the first time, they’ll perform better and stay in the herd. Don’t push them too hard with grain,” he cautions. “Go for the pound and a half to 2 pounds of gain per day.”

5. Don’t overlook the importance of temperament. A heifer can look like a great fit for the farm but still be an animal the producer needs to cull, because of her attitude and behavior.

Mississippi State Extension beef specialists encourage producers and their veterinarians to use a chute scoring method to keep temperament records.⁴ When heifers are restrained in the working chute, they can be assigned a score from 1 to 4 (1 = calm; 2 = restless shifting; 3 = squirming; 4 = twisting and rearing). Temperament is a very heritable trait, and removing temperamental heifers from the herd improves safety for farm employees as well as other members of the cowherd.

6. Protocols are needed for heifer vaccinations and deworming. For replacement heifers, Stegeman recommends administering a modified live viral vaccination and an initial leptospirosis vaccine at weaning time, when the animal is 6 to 7 months old.

“We’ll then deworm, often with a combination product, at that time as well,” he says.

Once heifers reach the 12-month mark, they are then administered a second round of vaccinations and dewormer.

“With some of the longer synchronization protocols now, we can give them their last pre-breeding vaccination the day we set them up, as it is approximately 33 days to breed from day one to AI or bull turn out,” Stegeman says. “Often, to save on number of trips through the chute, we try to consolidate processing.”

7. A pre-breeding examination is good insurance. Stegeman recommends that veterinarians reproductive tract score the heifers, either via ultrasound or manual palpation, at around 45 days prior to breeding. He says to measure the pelvis to make sure it is at least 150 square centimeters in size.

“We don’t want to set that number too high. We don’t want to say, ‘Well, my heifers need to be at 180 square centimeters,’ because then we’re just selecting for a big cow,” says Stegeman, citing research by David Patterson, PhD, emeritus beef Extension specialist at the University of Missouri.

With tract scores, Stegeman looks for scores of four and five, which indicate the heifer is ready to breed.

“We can start them on synchronization for breeding,” he says. “If needed, with some of the twos and threes, we’ll put them on feed to hopefully increase their tract score. Research indicates it takes at least 20 days to increase the tract score. If we have enough of the lower scoring heifers, and we deem it necessary, we can sort them out from the fours and fives to bump up their tract score using increased feed,” Stegeman adds.

He notes that the reproductive tract score along with the pelvic measurement provides the producer with some insurance that he is hanging on to the ‘right’ versus the ‘wrong’ heifers.

“The veterinarian can save producers money and time with these practices,” Stegeman says. “If you wait until preg check time to cull those heifers that’s not a good decision for the producer, because he’s got all the extra expense and feed into them up until that time. You might as well put them in the feedlot or develop them out for feeding earlier in the process,” he says.

¹DocTalk, Thomson, Dan. DocTalk Ep 462 - Heifer Development with Dr. Ray Stegeman

²Selk, Glenn. Development of Replacement Beef Heifers. http://agecon.okstate.edu/cattleman/files/ch_21_6th_ed.pdf

³Johnson, Mark Z. Selection of Replacement Heifers. https://extension.okstate.edu/programs/beef-extension/cow-calf-corner-the-newsletter-archives/2024/february-26-2024.html

⁴Rhinehart, Justin D. and Parish, Jane A. Replacement Beef Heifer Development. NRC, 2000. Adapted from NRC Nutrient Requirements of Beef Cattle, 7th revised edition. https://extension.msstate.edu/publications/publications/replacement-beef-heifer-development

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