Description    Ionophore antibiotics such as monensin, salinomycin, lasalocid, narasin, and maduramycin are toxic to some birds when given in large amounts.
Species   Avian
Signs   Abnormal color of stool in birds, Abnormal proprioceptive positioning, Anorexia, Ataxia, Change in voice, Cyanosis, Decreased hatchability of eggs, Decreased, absent thirst, hypodipsia, adipsia, Decreased, dropping, egg production, Dehydration, Diarrhea, Dullness, Dysmetria, Dyspnea, Excessive salivation, Generalized weakness, Inability to stand, Increased mortality in flocks of birds, Increased respiratory rate, Lack of growth or weight gain, Lameness, stiffness, stilted gait in birds, Neck weakness, Polydipsia, Reluctant to move, Seizures or syncope, Sudden death, Trembling, Tremor, Weakness, paresis, paralysis of the legs, limbs in birds, Weakness, paresis, paralysis, drooping, of the wings
References   Zavala G. Acute Monensin Toxicosis in Broiler Breeder Chickens. Avian Dis 2011;55:516 [Web Reference]
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