Ovarian Dynamics and Changes in Estradiol-17β and Progesterone Relationship with Standing Estrus, Preovulatory Follicles, and Ovulation Using Single Prostaglandin F2α Injection in Barbari Goats

Abstract

The purpose of the present research was to define ovarian follicular dynamics and plasma endocrine profiles in response to a single PGF2α injection, administered indiscriminately during the breeding season of Barbari goats. Ovarian dynamics were observed at every 12 h interval by using B mode ultrasonography, blood samples for hormonal analysis such as estradiol 17β and progesterone were collected at every 12 h interval, and bucks with aprons were used to identify standing estrus at every 6 h interval. Relative to PGF2α, the start of standing estrus and ovulation differ (p p > 0.05) between the goats. The corpus luteum degenerated more quickly (p p p = 0.065), the variation in progesterone concentration with time differed (p 2α might fluctuate in Barbari goats because of follicular and hormonal dynamics during the luteal phase.

Keywords

• Barbari goats
• PGF2α
• ovarian dynamics
• hormonal profile
• estrus
• ovulation