Ask the Silage Dr: Do I Need to Get Yeast and Mold Analysis?

(Sponsored Content)

Q. When I send my silage sample to the lab, should I request yeast and mold analysis too?

A. We only recommend yeast and mold analysis if producers suspect silage heating or if there are herd health concerns that may be caused from molds. However, spoilage yeasts can lower intake, reduce ruminal fiber digestibility and reduce milk fat.

When interpreting your results, anything above 100,000 colony-forming units (CFUs) per gram of silage is a problem. Greater than 100,000 yeasts in a core sample will mean the silage will almost surely heat, as it gets to the surface. Heating and spoilage during feedout are the greatest contributors to dry matter (DM) and nutrient losses in silage production.

Avoid the temptation to feed spoiled silage. Feeding even small amounts of spoiled silage can disrupt normal rumen function and can lead to reproduction problems, respiratory problems, herd health issues, reduced feed intake and decreased production.

To minimize spoilage losses at feedout, it’s important to prevent the growth of spoilage microorganisms, such as yeasts and molds. Preventing oxygen exposure is key. Be sure to pack tight and cover rapidly and well. This helps drive air out and reduce its ingress.

A research-proven inoculant also can help. For example, a high dose rate Lactobacillus buchneri 40788 applied at 400,000 CFU per gram of silage or 600,000 CFU per gram of high-moisture corn (HMC) has been uniquely reviewed by the FDA for improved aerobic stability.

For additional silage tips, visit www.qualitysilage.com or Ask the Silage Dr. on Twitter or Facebook.

 

Sponsored by Lallemand Animal Nutrition

 

Latest News

Tyson Announces Support for U.S. CattleTrace

Beef industry efforts to develop a voluntary animal traceability system gained significant traction today as Tyson Fresh Meats becomes the first beef processor to invest in membership to U.S. CattleTrace.

BT_Red_Angus_Bulls
Bull Breeding Soundness Evaluations

Before bulls are turned out this spring a complete breeding soundness evaluation (BSE) should be conducted by a veterinarian, including a physical examination, reproductive tract examination, and semen evaluation.

Mushrush_Argentina_Heifers
Keeping the First Calf Heifers on Track

Heifers conceiving early in their first breeding season will have increased lifetime production and efficiency. It is critical heifers attain enough weight to initiate their first estrous before the onset of breeding.

Stepped-Up Basis Repeal Would Be Detrimental to Ranches

Study says this tax increase, whether via tax at death or carryover of basis, will have negative impacts on family-owned businesses, US gross domestic product, and job creation both in the immediate and long term.

Nutrition Communications Workshop in Iowa

The Iowa Beef Industry Council (IBIC) recently hosted a nutrition communications workshop for dietetic graduate students enrolled in the University of Iowa’s Master of Clinical Nutrition Program.

Wendy's Corporate Responsibility Efforts and New Goals

Wendy's will focus on responsible sourcing, sustainable packaging, greenhouse gas reduction and increasing diversity within its leadership, management, and franchisees.