BLACK WALNUT, JUGLANS NIGRA, POISONING IN HORSES
 
Description    Black Walnut (JUGLANS NIGRA) wood shavings as stall bedding cause limb edema, laminitis, and other problems in horses. Signs develop within 12 hours of placing the bedding with the horses. Walnut shavings are dark and close-grained.
 
Species   Equine
 
Signs   Anorexia, Colic, Decreased borborygmi, Dullness, Dyspnea, Forefoot pain, Forelimb lameness, Forelimb pain, Forelimb swelling, Generalized lameness or stiffness, Heat, nail, claw, hoof, Hindfoot pain, Hindlimb lameness, Hindlimb pain, Hindlimb swelling, Inability to stand, Increased respiratory rate, Increased strength of pulse, Reluctant to move, Skin edema, Tachycardia
 
References   Katz LM. A review of recent advances and current hypotheses on the pathogenesis of acute laminitis. EVJ 2012;44:752 [Web Reference]
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