Retrospective studies on incidence of haemoprotozoan diseases in cattle over a period of nine years (2010-2019) in Chennai district, India.
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Date
2020-02
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Abstract
The 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%.
Description
TNV_20thMVC_PP_Feb-2020_PA38
Keywords
Veterinary Science