Behavioral Estrus and Ovarian Activity in Goats (Capra hircus)

Abstract

Behavioral estrus and ovarian activity were studied. Two vasectomized bucks were used in heat detection. Laparotomies were performed approximately 60 hours after the onset of estrus to determined the ovarian activity. The common signs of estrus were observed with the duration of 0.5 - 3 days. The right ovary appeared to be more active than the left (52.9% VS. 47.1%). Single ovulation occurred 55.1%, twin 40.9%, and triplets 2% in each estrous cycle. The mean number of ovulation per doe was 1.4 ± 0.1. All ovulation occurred within 60 hours after onset of estrus.