Dr. G.C.MANDALIDhaval V. Modi2017-05-032017-05-032013http://krishikosh.egranth.ac.in/handle/1/5810010446Haemoprotozoan diseases cause heavy losses to the livestock industry through out the world. However, it is known that most of blood protozoan parasites cause anemia by inducing erythrophagocytosis. Most of the haemoprotozoan parasites are tick borne and is of great economic importance in Asia and has always been a formidable barrier to the survival of exotic and crossbred cattle in India. Bovine theileriosis has been reported as disease of major economic importance, as it cause heavy losses due to mortality, decreased production and lowered working efficiency of affected animals. Exotic and crossbred cattle are most susceptible to theileriosis. Once infected, the animals remain carrier for life time, since organisms hide in macrophage and lymphoid tissues. This compromises the immune system and the animal is prone to a number of super infections. If affected animals are not treated properly and efficiently, mortality rates become high. Theileriosis in Indian bovines is mainly caused by Theileria annulata and the disease is known as bovine tropical theileriosis. The chief vector responsible for transmission is Hyalomma anatolicum anatolicum and other ticks species belonging to the said genera. The disease is characterized by high fever, enlargement of superficial lymph node and anaemiaenVeterinary MedicineStudyThesis