Possible Answer to Horse’s Death Found in Hay

Industry professionals believe awns in rye straw, lip ulcers, and infection could be behind the horse’s sudden death.

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There are arguably few things more devastating than watching an animal die suddenly, unexpectedly, and of an unknown cause. One Pennsylvania horse owner had this experience last year and decided she needed to find out what happened. So she reached out to some industry professionals for help.

Kathryn Watts, consultant at and founder of Safergrass.org, first learned of the case when the owner contacted her, asking whether a shipment of straw bedding from a reliable longtime supplier could have been responsible causing her mare’s death.

"The horse developed some problems walking, then was down and unable to rise, and eventually died, gasping for breath," Watts said of the mare’s rapid decline. "When she died, the horse was very swollen through the throatlatch area. And then (the owners) discovered that the horse’s lips were completely filled with ulcers, and there were awns (common in foxtail and other related plants) stuck in her lips.”

The veterinarian, who was on the way to the farm at the time the horse died, wasn’t able to offer the owner very much information about what caused this horse’s death, Watts said. "The owner chose at the time not to have a necropsy, but the more she thought about it, the more she wanted to find out what caused this horse’s death,” she added. “She had a great deal of the straw she’d purchased left, and she started to be concerned for her other horses

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Written by:

Erica Larson, former news editor for The Horse, holds a degree in journalism with an external specialty in equine science from Michigan State University in East Lansing. A Massachusetts native, she grew up in the saddle and has dabbled in a variety of disciplines including foxhunting, saddle seat, and mounted games. Currently, Erica competes in eventing with her OTTB, Dorado.

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