author(s)
Madhesh E, Shanmuganathan S and Kathiravan RS

abstract
Tropical theileriosis of bovines, caused by the haemoprotozoan parasite Theileria annulata, is characterized by high fever, inappetence, leukopenia, petechial haemorrhages in mucosa, and enlarged peripheral lymph nodes. The disease is mainly transmitted to cattle through Hyalomma anatolicum bite. This occurs frequently in cross-bred animals and exotic breeds, particularly in young calves. The present case report deals with therapeutic management of tropical theileriosis in crossbred dairy cow. Clinical examination of affected animals revealed high fever (104.5°F), petechial haemorrhages in vaginal mucous membrane and pallor conjunctival mucous membrane, weakness and thin watery blood. The blood smears examination has revealed the presence of typical Theileria annulata organisms. The case was successfully managed with buparvaquone along with supportive therapy.