Hepato-biliary coccidiosis in a dairy goat.

Hepato-biliary coccidiosis is reported in a diary goat that died of liver failure. Two types of lesions were seen in the liver. In the biliary type, coccidial oocysts, schizonts, gametes and gametocytes were seen in the epithelium of the bile duct, the wall of which was highly fibrosed. The hepatic type was in the form of granuloma, composed of oocysts and macrophages encapsulated in a fibrous capsule. Hepatic lymph nodes were diffusely scattered with oocysts and macrophages. Liver coccidiosis was found to be unresponsive to oral sulphamethazine treatment.