A survey was conducted at IDF Nagla, Pantnagar, Uttrakhand from year 2003 to 2013 to observe the effect of season of year and parity of animal on the rate of retention of placenta in dairy cattle. All cases of retained placenta in dairy cattle were recorded and the analysis of data was conducted to assess the effect of season of year and parity of animal on the rate of retention of placenta. Cases of retention of placenta in primiparous animals were 88 and 251 in pleuriparous animals. The highest percentages of incidence of retained placenta was detected in spring and summer seasons (29.20% and 27.72% respectively, while the lowest percentage was noticed in autumn (20.94%). Rate of occurrence of retention of placenta is more common in pleuriparous animals than in the primiparous animals (heifers). The incidence of cases of retention of placenta was maximum in spring and summer season and minimum in autumn.

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