Companion Animals

Companion Horse Ergot and Fescue Toxicity Welfare

Welfare implications of ergot and tall fescue toxicity in horses grazing contaminated pasture.

Key Facts

Ergot alkaloids from Claviceps purpurea in grain and grass cause significant welfare problems
Tall fescue infected with endophyte causes fescue toxicosis in grazing horses
Reproductive failure, hoof problems, and heat intolerance are signs of fescue toxicosis
Pasture management and testing identifies contaminated areas requiring reseeding
Summer restriction from affected fescue pastures reduces welfare impact

Welfare Considerations

Ergot and fescue toxicity cause significant welfare problems including reproductive failure and hoof disease, requiring proactive pasture management and testing.

What You Can Do

Test pastures for fescue endophyte infection before horses graze
Inspect grain and hay for ergot bodies before feeding
Consult your vet about pasture management if toxicity signs are observed