The study was designed to evaluate behavioural estrus signs and fertility response following spontaneous and Ovsynch induced estrus in Sahiwal cows. Group 1: (Spontaneous estrus group; n=20) cows were observed visually and ultrasonographically from a random day till occurrence of spontaneous estrus and ovulation. Group 2 (Ovsynch group; n=10) were administered with standard Ovsynch protocol (two GnRH 20µg on day 0 and 9 and PGF 500µg on day 7, .) started at random day of estrous cycle to synchronize estrus and ovulation. | Behavioural signs and fertility response following spontaneous and ovsynch induced estrus in Sahiwal cows
