Tansy ragwort poisoning in a horse in southern Ontario.
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.
de Lanux-Van Gorder
V
V
Ontario Veterinary College, University of Guelph.
D000818:Animals; D001522:Behavior, Animal; D003085:Colic / Q000209:etiology / Q000662:veterinary; D006734:Horse Diseases / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D006736:Horses; D007794:Lameness, Animal; D008297:Male; D009864:Ontario; D010947:Plants, Toxic; D011763:Pyrrolizidine Alkaloids / Q000506:poisoning*; D012674:Senecio / Q000506:poisoning*
D011763:Pyrrolizidine Alkaloids