By Andi Anderson
Dairy cows naturally obtain B-vitamins from the microbes in their rumen. However, supplementing certain B-vitamins has shown potential benefits, particularly when rumen protection ensures their delivery to the small intestine.
Why Supplement B-vitamins?
Research reveals that most B-vitamins degrade extensively in the rumen. For instance, riboflavin and niacin degrade by over 98%, while folic acid is 97% degraded. To combat this, rumen-protected supplements are often used, ensuring adequate absorption in the intestine.
Key Findings on B-vitamin Benefits
Biotin: Studies show 20 mg/day of biotin increases milk yield by 1.7 kg/day. It enhances production without affecting milk components, making it a popular choice for lactating cows.
Cobalamin and Folic Acid: These vitamins have neutral effects on milk yield but improve fertility and reduce culling rates. They are particularly beneficial around calving.
Niacin: Rumen-protected niacin shows promise in reducing fat mobilization, lowering ketones after calving, and demonstrating anti-inflammatory properties. One study even reported increased milk yield during lactation, though further research is needed.
Practical Considerations
The decision to supplement B-vitamins should be based on farm-specific needs. Analyze research data, consider supplement costs, and evaluate the potential benefits for your herd’s health and productivity.
Conclusion
B-vitamin supplementation can enhance milk yield, fertility, and overall cow health. For best results, use rumen-protected forms and tailor supplementation to the specific needs of your dairy operation.
Photo Credit: gettyimages-ahavelaar
Categories: Ohio, Livestock, Dairy Cattle