Vol. 12, Special Issue 12 (2023)

Author(s):
Rajkumar R, Vijay A, Venkatesan M, Hamsa Yamini S, Venkatesakumar E and Ponnu Swamy KK

Abstract:
The present work was designed to study the impact of ovsynch protocol on dominant follicle diameter and fertility in repeat breeder dairy cows. Thirty repeat breeder dairy cows were divided into two groups i.e. ovsynch treatment (n=15) and control (n=15). The dominant follicle diameter was 10.94±0.37 mm in ovsynch group and 10.69±0.30 mm in control group. The mean dominant follicle diameter did not differ significantly (p>0.05) between ovsynch treatment and control animals. In the present study, ovsynch protocol increased first insemination conception rate than the control (53.33% vs. 26.66%) indicating beneficial effect of ovsynch protocol on augmenting fertility in repeat breeder cows.