BLINDGRASS, STYPANDRA POISONING IN SHEEP AND GOATS
 
Description    STYPANDRA, 'blindgrass', grows in Western Australia where ingestion by sheep and goats causes lesions of the retina, optic nerves and white matter of the CNS. Animals can die after acute illness or become permanently blind.
 
Species   Caprine, Ovine
 
Signs   Abnormal pupillary response to light, Abnormal retinal pigmentation, Abnormal retinal reflectivity, Abnormal size of retinal vessels, Anorexia, Ataxia, Blindness, Dullness, Dysmetria, Generalized weakness, Mydriasis, Optic atrophy, Sudden death
 
References   Finnie J. Neurological diseases of ruminant livestock in Australia. II: toxic disorders and nutritional deficiencies. Aust Vet J 2011;89:247 [Web Reference]
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