Mycotoxins in Pig Feed: Welfare and Detection

Mycotoxins in contaminated feed cause a range of welfare problems in pigs. This guide covers recognition, prevention, and management.

Key Facts

Mycotoxins are toxic compounds produced by moulds in feed and forage
Deoxynivalenol (DON) causes feed refusal and reduced performance in pigs
Zearalenone causes reproductive problems and vulvovaginitis in gilts
Aflatoxins cause liver damage and immunosuppression
Pigs are particularly sensitive to mycotoxins compared to other species
Mycotoxin binders in feed can reduce absorption of certain toxins

Welfare Considerations and Management

Welfare-centred mycotoxin management requires feed quality monitoring and appropriate storage to prevent mould growth. Feed samples should be tested when mycotoxicosis is suspected. Removing contaminated feed is the primary intervention. Mycotoxin binders (clays, yeast cell wall products) reduce absorption of specific toxins. Supportive care including good nutrition and minimising other stressors supports recovery. Prevention through good grain storage, correct moisture levels, and aeration is most effective.

What You Can Do

Test feed samples when unexplained reproductive or performance problems arise
Store grain correctly at appropriate moisture levels with good aeration
Remove suspect feed immediately if mycotoxin contamination is identified
Consider mycotoxin binder supplementation during high-risk periods