How To Prevent Fescue Toxicosis in Broodmares

Fescue toxicosis can cause pregnancy losses and reduced reproductive efficiency in mares. Learn more in this visual guide! Sponsored by Dechra Veterinary Products.

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Tall fescue is a hardy, nutrient-rich forage found on 40 million acres across North America. This pasture grass, however, can cause fescue toxicosis in pregnant mares, leading to pregnancy losses and reduced reproductive efficiency. So, breeders go to great lengths to keep late-term broodmares off tall fescue. It’s most prevalent in temperate southern regions.

Take-Home Message:

Consider all tall fescue endophyte-infected unless proven otherwise. If you have concerns about fescue toxicosis, your veterinarian and local extension specialist are your best sources of information specific to your region.


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The Horse: Your Guide To Equine Health Care is an equine publication providing the latest news and information on the health, care, welfare, and management of all equids.

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