Vol. 9, Issue 1, Part H (2024)

Author(s): D Gowtham, S Kantharaj, K Murugavel and H Hemalatha

Abstract: The work was carried out with an objective to study and compare the efficacy of Ovsynch (Group-I) and Doublesynch (Group-II) estrus synchronization protocols on pregnancy outcome in postpartum anestrus cows. The influence of cervical cytology on pregnancy outcome was studied. The mean percentage of epithelial cells was significantly higher and LVEC was significantly lower in pregnant cows when compared to non-pregnant cows in both groups. No significant difference was observed in the mean percentage of PMN cells between pregnant and non-pregnant cows in Ovsynch group. However, there was a significantly lower mean percentage of PMN cells in pregnant cows when compared to non-pregnant cows in Doublesynch group. The first service conception rate was 28.57% in Ovsynch and Doublesynch groups. The second service conception rate was 8% in Doublesynch and none of the animals conceived in the second service in Ovsynch group. The overall conception rate was 28.57% in Ovsynch group and 34.29% in Doublesynch group. No significant difference could be observed in the first service, second service and overall conception rate between the groups.