Peer-reviewed veterinary case report
Tansy ragwort poisoning in a horse in southern Ontario.
- Journal:
- The Canadian veterinary journal = La revue veterinaire canadienne
- Year:
- 2000
- Authors:
- de Lanux-Van Gorder, V
- Affiliation:
- Ontario Veterinary College · Canada
- Species:
- horse
Plain-English summary
One of three horses in a pasture filled with weeds during a drought started showing strange behavior, seemed to be limping, and had signs of colic, which is abdominal pain. After some tests, the horse was found to have liver failure and brain issues due to poisoning from a plant called tansy ragwort. Fortunately, once the horse was taken off the pasture, it made a full recovery.
Abstract
Bizarre behavior, apparent lameness, and colic were noticed in 1 of 3 horses on a pasture overgrown by weeds during a drought. Liver failure and hepatoencephalopathy were diagnosed, caused by pyrrolizidine alkaloid toxicosis associated with consumption of tansy ragwort. The horse made a full recovery when removed from the pasture.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/10816838/