Pig Welfare and Mycotoxin Contamination in Feed

Mycotoxins in pig feed cause chronic health and welfare problems that are frequently undiagnosed and underestimated in intensive production systems.

Key Facts

Mycotoxins are toxic fungal metabolites that contaminate grain-based feeds globally
Aflatoxins and fumonisins are among the most harmful mycotoxins in pig diets
Low-level chronic exposure causes immunosuppression, reproductive failure, and liver damage
Clinical signs are often subtle and misattributed to other causes
Climate change is expanding the geographic range and severity of mycotoxin contamination

Welfare Considerations

Mycotoxin-related welfare problems in pigs are a hidden cost of grain-based intensive production. Contaminated feeds cause a spectrum of welfare harms from acute toxicity at high doses to chronic immunosuppression and organ damage at lower chronic doses. The subtlety of chronic low-level effects means welfare problems persist undetected. As climate change expands mycotoxin-producing fungi into new regions and creates growing conditions favorable to contamination, this welfare challenge will intensify without proactive monitoring and management.

What You Can Do

Support feed quality monitoring programs that include regular mycotoxin testing
Advocate for international food safety standards that protect farm animal feed quality
Encourage producers to use mycotoxin-binding agents during high-risk periods
Support research into climate-resilient grain varieties with reduced mycotoxin susceptibility