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Detection of Haemoprotozoa in Cows and Buffaloes in Kangra District of Himachal Pradesh
In this study, a total of 57 blood samples from cows and buffaloes showing clinical signs of high fever, anemia and/or swollen lymph nodeswere screened for haemoprotozoan infections using polymerase chain reaction (PCR). Some asymptomatic animals were also included in the study. Out of 57 blood samples, 14 samples were positive for either one or the other haemoprotozoa reflecting an overall prevalence of 24.56%. A total of nine samples of which six from cows and three from buffaloes were positive for Theileria annulata and five samples all from cows were found positive for mixed infection of Babesia bovis and Anaplasma marginale. This study shows that haemoprotozoan infections are common in cows and buffaloes population of Kangra District of Himachal Pradeshdue to conduciveenvironmental conditions for survival of vectors responsible for carrying these infectious agents. PCR technique showed high sensitivity and specificityup to species level, as it not only detected the haemoprotozoan infections in active cases but also in asymptomatic carrier animals.
Keywords
Anaplasma marginale, Babesia bovis, Bovine Haemoprotozoan, Himachal Pradesh, Kangra, PCR.
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