Castration

Could The ClipFitter Work For Calf Castration?

Mon, 09 Feb 2026 20:56:27 GMT

Castration remains a routine management practice in cattle systems, yet it continues to raise persistent animal welfare concerns. Bloodless methods are widely used because they are easy to apply, but none are pain-free. Rubber banding is effective, but associated with both acute and prolonged discomfort. Burdizzo castration can reduce long-term pain, but carries a higher risk of incomplete castration and subsequent complications. This trade-off has driven interest in new tools that might preserve reliability without increasing pain.

New work published in “ The Bovine Practitioner ” by Jacob Schumacher and colleagues at Kansas State University explored the ClipFitter , a castration method that combines the benefits of both rubber banding and the Burdizzo method, for calf castration.

The ClipFitter is a disposable plastic clamp that crushes the spermatic cords and associated nerves like a Burdizzo, but remains on the scrotum until it sloughs off, providing visual confirmation of successful castration. While the ClipFitter has been used previously in lambs, this pilot study represents its first evaluation of its use in calves.

ClipFitter vs. Banding: A Comparison

The study included 12 beef-dairy cross calves aged 8 to 10 weeks. These animals were assigned to one of three groups: ClipFitter castration, standard rubber band castration or sham handling. No local anesthetics or systemic analgesics were administered, reflecting common practices in the U.S.

The following physiological and behavioral indicators were used to assess animal welfare and pain before and after castration:

Plasma cortisol and substance P levels
Lying and standing activity measured via accelerometer
Ocular and scrotal temperature measured via infrared thermography, as indicators of acute stress responses and blood flow and castration effectiveness, respectively

Data were collected through seven days post-castration.

(ClipFitter)

Pain, Behavior and Effectiveness

Plasma cortisol concentrations increased shortly after castration across all groups, peaking at 30 minutes before declining toward baseline. However, cortisol levels did not differ significantly among the three treatment groups. Substance P concentrations showed no differences between treatments or over time.

These findings suggest neither blood biomarker was sensitive enough to distinguish pain responses between ClipFitter and rubber band castration. However, this may also have been due to the relatively small sample size used in this study along with the variability of these biomarkers.

Activity monitoring revealed subtle but measurable changes in lying and standing behavior following castration. Calves castrated with rubber bands spent less time standing before switching to a lying position compared to sham calves. ClipFitter calves spent less time lying before standing compared with sham calves. No lying or standing outcomes differed significantly between the two castration methods.

These results indicate both ClipFitter and band castration altered normal behavior patterns in ways consistent with discomfort. The differing patterns between treatments may reflect mechanical differences between devices rather than meaningful differences in pain severity. The authors noted the lateral application of the ClipFitter prototype may have contributed to positional discomfort while calves were lying: “Excess plastic on either side of the scrotum may rub on the calves’ legs or pull on their scrotums while lying.”

Infrared imaging of the scrotum provided the clearest evidence of castration effectiveness. By seven days postcastration, ClipFitter calves exhibited significantly lower scrotal temperatures than sham calves, consistent with reduced blood flow to the testicles. These temperatures were not different from those of banded calves.

Key Findings from the Pilot Study

While the ClipFitter successfully restricted blood flow to the testicles, the results did not demonstrate a welfare advantage over standard rubber band castration within the first seven days. Behavioral data suggest both methods cause measurable discomfort that physiological markers failed to differentiate.

As the authors conclude: “While the viability of the ClipFitter for castration of calves was demonstrated to be promising, we were unable to find differences in pain measures that could correlate to a negative state of welfare.”

The ClipFitter may prove to be a technically reliable alternative, but current data do not justify viewing it as a welfare-improving replacement for band castration. Larger studies with longer follow-up periods could determine whether the device can meaningfully shift castration welfare outcomes.

Castration in Beef Production: Timing, Technique and Welfare

Wed, 10 Sep 2025 14:23:12 GMT

Castration is one of the most common surgical procedures in beef production, yet the timing and method used varies across producers. While some producers delay the procedure in hopes of capturing additional growth, early castration may best balance calf welfare, health and downstream performance.

Veterinarians play a critical role in guiding producers through these decisions, not only by offering technical expertise but also by advising on the economic and management benefits.

The justification for castration has been well established. From a behavioral standpoint, bulls are more prone to fighting, mounting and injuring pen mates. These behaviors contribute to stress, lameness and carcass bruising, all of which translate into economic loss. Castration also improves carcass quality; steers typically produce more tender beef and are less likely to result in dark cutters at harvest.

Properly castrated steers bring a premium at market compared to intact bull calves. According to Kansas State veterinarian Brad White, “Price discounts for uncastrated bulls could range from 3% to 15% depending on weight and age.”

Castration Timing

One of the most frequent questions producers pose is when calves should be castrated. According to Dr. Dan Thompson of Production Animal Consultation, the short answer is: the earlier, the better.

Research consistently demonstrates that castrating in the first week of life results in less stress, fewer complications and no long-term performance penalties. A review from the University of Florida concluded that calves castrated within the first week showed no disadvantage in weaning weight compared to those castrated at weaning, effectively debunking the notion that leaving bulls intact until weaning captures a growth advantage. Physiologically, this makes sense: Testosterone secretion at levels that influence muscle growth does not occur until puberty, or 7 to10 months of age.

Delaying castration until weaning or feedlot arrival significantly increases the risk of morbidity and mortality. In a recent analysis , Paul Beck and colleagues found that bulls were 1.16 times more likely to have chronic morbidity and 2.27 times more likely to have bovine respiratory disease mortality than steers.

On an episode of DocTalk , Thompson reinforced this point, noting that morbidity may increase by 150% to 200% when calves are castrated upon feedlot arrival. The intact bulls included in the analysis also displayed reduced average daily gain during the receiving period compared to their steer counterparts, and no compensatory gain on pasture, undermining any perceived advantage of delaying castration.

Methods and their Applications

The choice of castration technique should be guided by calf age, weight and producer resources. For calves under 250 lb., elastic band castration using a small elastrator is straightforward and effective. The procedure is bloodless at the time of application, simple to perform, and generally well tolerated. For larger calves, specialized large-animal banders, such as the Callicrate Bander, can be employed.

Regardless of size, banding carries the risk of tetanus. Clostridium tetani, the bacterial cause of tetanus, can be found in the soil. Veterinarians should be aware of the risk potential in their area of service and recommend vaccination accordingly.

Surgical castration can be used for immediate testicular removal, and is used more in larger calves. For very young calves, a simple scrotal incision and manual extraction of the testicles can be used. In older calves, hemorrhage becomes a more significant concern. Instruments, such as emasculators or the Henderson tool, which twist the spermatic cord to form a self-ligature, have been developed to reduce bleeding risk. These tools give veterinarians and producers more control in preventing complications, though they may require specific skills and follow-up management.

Pain Management

Regardless of method or age, castration is painful. Historically, pain control in livestock procedures was rarely employed, but growing consumer awareness and concern for animal welfare is changing expectations. Moreover, pain mitigation improves calf comfort and may support better post-procedural recovery. Local anesthesia with lidocaine is effective in reducing acute pain during surgical castration. Nonsteroidal anti-inflammatory drugs can further reduce post-procedural pain and inflammation.

Innovations such as Solvet, a lidocaine-impregnated elastrator band, offer promising new approaches for pain management with castration. These bands provide local anesthesia over the course of castration (14 to 28 days), reducing pain behaviors and allowing calves to resume normal activity more quickly. Such tools give veterinarians practical solutions to recommend to producers who are increasingly concerned about welfare and public perception.

Complications and Mitigation

All castration techniques are not without risk. The most common complications of castration are:

Hemorrhage — Particularly with surgical methods. Packing the scrotum with gauze or using a band to compress the wound can reduce bleeding.
Tetanus — Especially concerning after banding. Proper vaccination is key for prevention.
Fly strike — Preventable with seasonal planning, fly tags and repellents.
Incomplete castration — Typically the result of improper band placement. Can be minimized by careful technique and post-procedure monitoring.

Castration should be considered in terms of both animal welfare and economic return. Simply, castrating calves early is better for the calf, better for performance and better for the bottom line. Research confirms that delaying castration does not improve weaning weights, but it does increase health risks and compromise performance in the feedlot.

With the addition of practical pain management options and sound vaccination protocols, veterinarians can help producers implement castration programs that support both productivity and public trust. Castration is not simply a routine procedure, it is a management decision that directly impacts animal health, producer economics, and consumer confidence in beef production.

Castration Considerations to Minimize Stress and Maintain Performance

Wed, 16 Jul 2025 17:21:56 GMT

Approaches to castration should be made with operational objectives and animal welfare in mind. Producers should consult with their herd veterinarian for a castration protocol that includes consideration for animal age, facilities available, castration method and pain control.

Calves castrated at younger ages — ideally under 3 months — generally experience less stress, recover quicker and have fewer complications. Unless a bull calf is being kept for potential breeding purposes, delaying castration is unnecessary. If castration must be done on older animals, it is critical to use appropriate pain control and consider surgical methods carefully.

Good restraint for bovine castration is essential. Well-designed working facilities with secure head catch and squeeze are good choices in most instances. For smaller calves, restraint can be done in a calf cradle or on the ground with proper equipment. Beef Quality Assurance guidelines should always be followed.

The primary methods used to castrate are surgical removal or elastrator band. The decision on technique should be made in coordination with the herd veterinarian and consider animal well-being and the recovery environment. If banding is chosen, animals should be vaccinated for tetanus prior to the procedure.

Local anesthetic utilized at the time of castration can decrease the initial pain of castration and help provide additional pain control for up to 5 hours after the procedure. Sedatives may also be combined with local anesthetics for broader pain control during castration.

Non-steroidal anti-inflammatory drugs (NSAIDS) may also be added to the plan to provide immediate pain control along with longer activity. Certain NSAIDS with a single dose can provide up to 48 hours of pain control. NSAID formulations include oral, injectable and topical applications. For those that band calves, there are now bands impregnated with the local anesthetic, lidocaine and provide pain control for more than two weeks after banding.

Research in providing pain control has been shown to promote weight-gain and feed intake following castrations and in calves older than seven days decrease the instance of respiratory disease. Pain medications require veterinary prescription.

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.

Your next read: Effective Needle and Syringe Strategies to Ensure Spring Processing Success

Lidocaine Infused Bands Minimize Castration Discomfort for Young Calves

Mon, 25 Nov 2024 23:40:04 GMT

As consumer concern for animal rearing practices rises, and industry awareness of animal welfare increases at the same time, food animal rearing practices are changing in step.

One of those practices: castration, a necessary yet painful rite of passage for every male animal destined for the beef market. A recent study at Kansas State University – presented at the American Association of Bovine Practitioners Conference in Columbus, Ohio -- demonstrated how lidocaine-infused castration bands can help calves transition through the castration phase more smoothly and comfortably.

In the study, 26 beef-cross calves under two weeks of age were banded with either the lidocaine-infused band, or a conventional castration band. Calves were individually housed for close observation, and followed via 24/7 video surveillance for 42 days.

Among the results, researchers found:

· The calves treated with the lidocaine-infused bands had significantly more bouts of lying, and more total lying time, than those treated with conventional bands.

· The greatest disparity in lying time occurred between days 21 and 35, which is significant because that is the typical time when bands start cutting through the tissue. “It is great to see the lidocaine-banded calves were comfortable lying down at a time that we often say is the chronic part of the pain related to castration,” noted Eduarda Bortoluzzi, DVM, and assistant professor of animal welfare in the Department of Anatomy and Physiology, Kansas State University.

· While weight loss would be expected immediately after castration, calves receiving the treated bands gained a bit of weight the first week after castration, while those with conventional bands lost weight during the same time period – an indication that the lidocaine-banded calves returned to appetite more quickly.

· At the end of the study, the final bodyweight was an average of more than 3 pounds higher for the calves receiving the lidocaine-treated bands compared to those receiving conventional bands.

“In addition to weight gain, it’s also about doing the right thing for our animals and providing some type of analgesic relief during castration because we know it’s painful,” declared Bortoluzzi. “I would use it to decrease their stress during this period. We now have a type of analgesic that was not available before.”

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When is the right time to castrate bulls?

Tue, 15 Mar 2022 18:43:42 GMT

The practice of castrating animals goes back to ancient times. Egyptian farmers found castrating bovine bulls made the animal much easier to handle. It’s doubtful the Egyptians were concerned about the value-added components of their animals. But today, adding value to market cattle is the name of the game and castration is a key component to any preconditioning program that can greatly influence market price premiums or discounts, especially in older bull calves.

Castrating bull calves has become common practice in U.S. beef herds. In 2017, the USDA-APHIS NAHMS Beef Cow Calf study indicated that 62% of commercial cow-calf herds used castration methods in their management practices. Castration has provided economic benefits to both the cow-calf producer and feedlot operators through increased market prices and meat quality. Castration also decreases unwanted pregnancy and increases the safety of workers and other animals.

There is a perceived notion that intact bulls have an advantage in body weight gains during the preweaning period and post greater weaning weights than calves castrated at or near birth. However, numerous studies have shown the weaning weights are similar for bulls and steers (approx. 600 lbs.). Advantages in calf weight gain due to testosterone production are presumably realized at a time following average weaning dates closer to puberty.

The timing of castration can influence weight gain and stress management. Studies examining how timing of castration effects average daily gains (ADG) in cattle castrated either in early life (birth to 2 mo.) or those castrated at weaning or postweaning (6-10 mo.) demonstrated higher ADG during the post-weaning period in the early castrated calves (approx. 0.30 lbs/day greater) than those castrated at or after. The period calves experience weight loss post-castration increases with age as does risk of disease susceptibility. The stress experienced is also related to the time of castration as the level of discomfort and trauma increases with the size of testicles. Calves castrated at 5 ½ months of age or later experienced a greater duration of stress than those castrated at birth or at branding.

Bull calves entering the stocker or feedlot segments of the industry have numerous health and performance factors associated with late life castration such as increased risk or morbidity and mortality, sick treatments and decreased ADG. Therefore, price discounts for bull calves being sold at market can be substantial when compared to steers marketed in the same weight class. Lighter weight bulls (300-400 lbs.) are viewed as less risky, and discounts are generally minimal if any. As the weight of a bull increases, so does the risk. Discounts can average $6-12/cwt or $30-60 per head.

A herd management practice that dates to ancient times and still used today has clearly proven beneficial. Utilizing the practice and with a timing that makes sense may be the difference between dollars made or dollars lost.

Castration is an important part of adding value to your calves through preconditioning. For more details and to enroll in the OQBN program go to www.oqbn.okstate.edu

Does Calf Age at Castration Matter?

Fri, 13 Nov 2020 02:00:14 GMT

There are a lot of different reasons to castrate calves at a certain stage in their lives, but when is the best time to do it?
By: Matt Hersom, Extension Beef Cattle Specialist, University of Florida

Castration, the process of removal or destruction of the testicles, is a common management practice within beef cattle operations. Approximately 60% of beef cow-calf producers castrated their male calves prior to sale (USDA-NAHMS, 2008).There are a number of reasons cattlemen choose to castrate calves before marketing, the primary reason is market demand and economics. Traditionally, steers have a distinct advantage in the market place over bulls because steers fit within modern beef production systems and produce a more desirable carcass for consumers. Although the practice of castration is widely utilized within the industry, the timing and method used for castration can vary considerably between operations. Factors that may impact timing of castration include producer philosophy, product marketing claims, weather, and availability of resources such as facilities or labor.

Some cattlemen believe that delayed castration improves growth in nursing calves. This belief is also endorsed by some castration tool manufacturers who claim that delayed castration creates significant weight gain advantages at weaning compared to calves that were castrated shortly after birth. Since producers are paid on a weight basis, most cattlemen opt to market their calves at weaning. Consequently, differences in weaning weight can mean differences in profitability. Most research literature suggests that castrating calves shortly after birth has minimal to no effect on weaning weight.

The issue of age at castration was examined in a Florida setting to ascertain if timing of castration resulted in significant differences in growth rate and weaning weight in nursing calves. A full description of the study can be found in this UF/IFAS publication: Effect of Age at Castration on Beef Calf Performance . Calves born in December to March were divided into two groups and castrated at different times: Early (average of 36 days of age in March/April) or Late (average of 131 days of age in June). Figure 1 shows the body weights of the calves during the demonstration. Calves had similar birth weights and by May the Early castrated calves continued to have similar body weights compared to calves that had not been castrated. This implies that calves castrated at or near birth had overcome any potential growth delays related to castration by the time body weight measurements were initiated. Additionally, Early castrates did not seem to experience any significant disadvantage in growth due to treatment during the remainder of the summer. No differences were observed in body weight change and average daily gain during the trial period. In fact weaning weights were similar between Early and Late castrated calves. Since both Early and Late castration occurred prior to weaning and the onset of puberty, these results would seem reasonable.

The concept underlying delayed castration is to leave male calves intact long enough to capture the benefits of the calf’s own hormones that are known to stimulate growth. However, to capture the full benefit, castration would most likely need to be delayed until calves approach puberty. It is only at this point that calves would have the ability to secrete enough testosterone to create significant differences in weight and growth performance. The comparable pubertal status of the treatment groups in this study likely contributed to the similar weaning weights and growth measures between the early and late castrates.

Take Home Message
Calf performance results from this trial and others suggest that producers have some degree of flexibility in determining when to implement castration. Producers should recognize that castration at or shortly after birth will not have a detrimental effect on calf performance or ultimate weaning weight. Equally important, producers should also realize that delaying castration until calves are approximately 131 days old will not bring added pounds at weaning, despite a common belief to the contrary.