OCCURRENCE AND PATHOLOGY OF NATURALLY-OCCURRING BILIARY AMPHISTOMIASIS IN BUFFALOS AND CATTLE

Studies on the occurrence and pathology of naturally occurring biliary amphistomiasis in buffaloes and cattle were conducted. The occurrence of Gigantocotyle explanatum was much higher in buffaloes (87.09%) tha n in cattle (35%). Grossly, the liver was enlarged and the cut surface of the liver revealed numerous flukes in the lumen of the bile-ducts. Histopathologically, there was marked proliferation of bileducts form ing irregular acinous or tubular structures, arteriolosclerosis and ly mphocytic infiltration in the interlobular connective tissue.