Indian Journal Of Animal Research
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S. Deori*, Joken Bam, V. Paul and K.K. Baruah
National Research Centre on Yak, Dirang, West Kameng - 790 101,India

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Gestational disorders like abortions are of great concern due to the loss of fetus in yaks. Therefore, a basic study was carried out to study the epidemiology of abortion in yaks managed under farm condition in semi-intensive system of management. Data of 254 pregnancies were collected over a period of 6 years from 2005 to 2010 from the farm records. The overall incidence of abortion was found to be 16.54 % out of which 80.95 % abortions were recorded in pleuriparous and 19.05 % in the primiparous animals. Month wise analysis showed that maximum abortions were recorded in the month of June followed by May. Maximum abortions were recorded during the late gestation phase followed by mid gestation and early gestation stage.
Abortion, yak.
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