Chakravarthi, RAlimudeen, SSenthil, NRSubapriya, S; et al.TANUVAS2020-03-092020-03-092020-02http://krishikosh.egranth.ac.in/handle/1/5810145078TNV_20thMVC_PP_Feb-2020_PA38The present work was based on retrospective study of 7,000 blood smears of cattle received over a period of nine years (2010 to 2019) in and around Chennai at Madras Veterinary College Teaching Hospital. On blood smear examination 3,072 blood smears were found to be positive for various Haemoprotozoan diseases. Among the recorded positive Haemoprotozoan diseases, the highest incidence was of Anaplasma sp. of 2016 cases (65.62%) followed by Theileria sp. with 888 cases (28.9%), Babesia bovis with 98 cases (3.19%), Trypanosoma sp. With 23 cases (0.74%), Microfilaria with 21 cases (0.68%), Pasturella sp. with 17 cases (0.55%) and Ehrlichia bovis with 9 cases (0.29%) Maximum number of cases were recorded during Monsoon season (August-November) with 1152 cases (37.5%) followed by 1029 cases (33.49%) during winter season (December-March) and 891 cases (29%) during Summer season (April-July) . The incidence rate of Haemoprotozoan diseases in Cattle remain almost the same during this time period around 12%.enVeterinary SciencePresentation