66: Inconsistent Herd Performance? Take A Closer Look at Fumonisin

Ruminate This | Agrarian Solutions

Ruminate This | Agrarian Solutions
66: Inconsistent Herd Performance? Take A Closer Look at Fumonisin
Feb 09, 2026 Season 2 Episode 66
Scott Zehr

Fumonisin is one of the most overlooked mycotoxins in dairy production, and its impact goes beyond immune suppression. In this episode, Dr. Larry Roth explains how fumonisin disrupts cell-to-cell communication in the gut (often called quorum sensing), which plays a critical role in gut integrity, immune function, liver health, and respiratory resilience. Learn why this mycotoxin is increasingly more common, why many binders fall short, and how targeted testing and smarter mitigation can help explain inconsistent herd performance.

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