1. Management Strategies for Improved Fall-Lambing
Melengestrol acetate is administered orally through the feed for the suppression of estrus and ovulation in feedlot heifers. Within minutes after ram introduction, there is a hormonal response in the ewe that leads to ovulation within...
http://www.ext.vt.edu/news/periodicals/livestock/aps-97_04/aps-772.html

2. Naked mole-rats
This results in a suppression of ovarian cyclicity and ovulation in non-breeding females, while in non-breeding males testosterone concentrations and sperm numbers are lower, and in most males sperm are non-motile.
http://www.qmw.ac.uk/~ugbt991/CGFNMR.htm

3. Desogetrel/Ethinyl Estradiol >> Medical Questions, Weight Loss, Pregnancy, Drugs, Health Insuranc...
Hi, I am 21 and I need advice from you before going to my doctor or gynecologist. Most of my friends are taking contraceptive pill, mainly Desogestrel / Ethinyl Estradiol and I was wondering could I take it too.
http://www.steadyhealth.com/software/vitamin_test/Desogetrel_Ethinyl_Estradiol_...