ENTERITIS ASSOCIATED WITH YERSINIA-PSEUDOTUBERCULOSIS INFECTION IN A BUFFALO

A week after transport a 4 month old buffalo calf developed diarrhoea. Its condition gradually deteriorated and it died. Necropsy revealed a cute haemorrhagic enteritis and enlarged mesenteric lymph nodes. Haemo rrhages and numerous microabscesses were detected in the lamina propri a of the small intestine associated with colonies of Gram negative bac teria. Yersinia pseudotuberculosis was isolated from the small intesti ne and from mesenteric lymph node. Enteritis caused by Y pseudotubercu losis does not appear to have been reported previously in buffalo in A ustralia.