MILKWEED, ASCLEPIAS, POISONING IN RUMINANTS AND HORSES
 
Description    Several species of milkweeds of the genus ASCLEPIAS growing in the arid western U.S. and Mexico contain toxic glycosides.
 
Species   Bovine, Equine, Caprine, Ovine
 
Signs   Abdominal distention, Abnormal pupillary response to light, Agalactia, Anorexia, Ataxia, Bloat in ruminants, Colic, Coma, Cyanosis, Diarrhea, Dullness, Dysmetria, Dyspnea, Excessive salivation, Fever, Generalized weakness, Grinding teeth, Hyperesthesia, Inability to stand, Increased respiratory rate, Lordosis, Mydriasis, Opisthotonus, Paraparesis, Seizures or syncope, Sudden death, Tachycardia, Tetraparesis, Trembling, Tremor, Vomiting or regurgitation, Weak pulse
 
References   Niles GA. Toxicoses of the Ruminant Nervous System. Vet Clin North Am Food Anim Pract 2017;33:111 [Web Reference]
Dawson DR. Toxins and Adverse Drug Reactions Affecting the Equine Nervous System. Vet Clin N A Eq Pract 2011;27:507 [Web Reference]
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