Mycotoxins are often viewed as a feed quality issue, but their impact extends far beyond the feed bunk. From gut health and immune function to reproduction and overall herd performance, hidden mycotoxin challenges can quietly erode profitability on dairy farms.
In this presentation, Dr. Larry Roth, Vice President of Nutrition at Agrarian Solutions, explores the biological and economic consequences of mycotoxin exposure in dairy cattle. Originally presented at the Wisenetix Dairy Feed Additive Summit, this discussion examines how mycotoxins influence nutrient allocation, reproductive performance, and herd efficiency, and what producers can do to mitigate their impact.
Key topics covered include:
- What mycotoxins are and how they develop in feedstuffs
- The most common mycotoxins affecting North American dairies, including DON, zearalenone, T-2 toxin, fumonisin, and aflatoxin
- Why multiple mycotoxins are increasingly common in modern dairy production
- How mycotoxins damage gut integrity and increase nutrient demands on the immune system
- The relationship between nutrient allocation, reproductive success, and herd profitability
- Research evaluating traditional mycotoxin binders and their limitations
- Independent field trial results demonstrating improved pregnancy rates with DTX™ technology
- Practical recommendations for mycotoxin testing and mitigation strategies
Dr. Roth also reviews results from a commercial dairy trial involving more than 900 cows, highlighting improvements in pregnancies per service for both artificial insemination and embryo transfer programs.
