POISON HEMLOCK, CONIUM MACULATUM, POISONING IN PIGS
 
Description    Poison Hemlock (CONIUM MACULATUM) is toxic to swine due to a nicotine-like toxic effects of alkaloids in the plant. Poisonings usually occur when the pigs are penned in lots containing large amounts of hemlock or when feeds are contaminated by seeds. Pregnant sows eating hemlock may have piglets with arthrogryposis and scoliosis, and experimental feeding has caused cleft palates.
 
Species   Porcine
 
Signs   Anorexia, Ataxia, Blindness, Bradycardia, Cleft palate or lip, Cold skin, Coma, Contracture fore limb, leg, Decreased mobility of forelimb joint, Decreased mobility of hindlimb joint, Dysmetria, Dyspnea, Fever, Generalized weakness, Hindlimb spasms, Hyperesthesia, Inability to stand, Increased frequency of urination, Increased respiratory rate, Lacrimation, Mydriasis, Paraparesis, Propulsion, Scoliosis, Tachycardia, Trembling, Tremor
 
References   Payne J. Plant poisoning in farm animals. In Pract 2014;36:455 [Web Reference]
Panter KE. Effects of Xenobiotics and Phytotoxins on Reproduction in Food Animals. Vet Clin N A Food Anim Pract 2011;27:429 [Web Reference]
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