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Updated: Aug 19, 2026

13:42
Clinical Examination Protocol to Detect Atypical and Classical Scrapie in Sheep
Published on: January 19, 2014
Polioencephalomalacia in adult sheep grazing pastures with prostrate pigweed
Juan José Ramos1, Luis Miguel Ferrer, Laura García
1Department of Animal Pathology, Veterinary Faculty, University of Zaragoza, C/Miguel Servet, 177, 50013-Zaragoza, Spain. jjramos@unizar.es
Abstract:
Polioencephalomalacia was diagnosed in 2 animals from different farms. In apparently healthy animals from same farms, fecal thiaminase and a significant reduction in erythrocyte trans-ketolase activity was observed. The presence of thiaminase in Amaranthus blitoides could have contributed to the development of polioencephalomalacia in sheep grazing on natural pastures.

