Effect of parity of animal, season and sex of fetus on the rate of abortion in dairy cattle

Abstract

A survey was done at IDF Nagla, Pantnagar, Uttarakhand from year 2003 to 2012 to observe the effect of season, parity of the animal and sex of fetus on the rate of abortion in dairy cattle. All the cases of abortion in dairy cattle were recorded and analysis of data was conducted to determine the link between season, parity and sex of fetus on rate of abortion. The total number of abortions in dairy cattle were 241. Sex of 148 fetuses aborted was male and 93 aborted were females. The no of abortion in first parity animals were 118 (maximum) and 68 second parity, 22 in 3rd parity, 24 in 4th parity, 9 in 5th parity. Maximum number of abortions were recorded during the summer time (89). 61 cases of abortion were recorded in spring, 49 cases of abortion in winter and 42 cases in autumn.