Abstract
Ovarian follicular dynamic and plasma progesterone concentration in Alpine goats on the breeding season
Highlights
The average length of the normal estrous cycle in goats is 21 days, and it can vary between 18 to 22 days, depending on the breed and reproductive stage (Jainudeen et al, 2000)
The luteal phase begins at the ovulation and it is characterized by the progesterone dominance, which is produced by the corpus luteum (CL)
In Nubian Goats, Camp et al (1983) verified that the majority (86%) of the short length estrous cycles occurred at the beginning of the breeding season and it was characterized by the premature regression of the CL, confirmed by successive laparoscopy
Summary
The average length of the normal estrous cycle in goats is 21 days, and it can vary between 18 to 22 days, depending on the breed and reproductive stage (Jainudeen et al, 2000). Long length estrous cycles are associated with continued development of two or three follicular waves after luteolysis had occurred and failure of ovulation of the ovulatory-sized follicles (8 to 12mm) before ovulation occurred (Ginther and Kot, 1994).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
