ADSC 3600 Study Guide - Midterm Guide: Corpus Luteum, Estrous Cycle, Prostaglandin
15 May 2017
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Hormone that"s produced in the hypothalamus that regulates the release of fsh and lh. Stimulates follicles on the ovary to grow and mature. As estrogen levels increase, cows experience estrus (heat) behavior, stimulates release of more gnrh. Hormone responsible for ovulation and formation of cl. Stimulates ovulation of mature follicle and stimulates cell change to produce the corpus. Estrogen drops: corpus luteum (on ovary) produces progesterone. Progesterone increases (peaks 5-6) and inhibits gnrh release (this inhibits fsh and lh). Progesterone get the uterus ready for pregnancy. If the uterus doesn"t recognize pregnancy by about 17 days, the uterus will then release prostaglandin which causes regression of the corpus luteum. Hormone in the cidrs used in lab. You could synchronize cattle heat cycle by giving a shot of prostaglandin (hormone injected in lab when cidrs were removed) Hormone produces in the ovary that"s responsible for development of secondary sex characteristics in the female.
