The use of hormones to control the fertility of farm animals.
D000818:Animals; D000829:Animals, Domestic; D003267:Contraception / Q000662:veterinary*; D005298:Fertility; D012739:Gonadal Steroid Hormones / Q000494:pharmacology*; D012106:Research
D012739:Gonadal Steroid Hormones
CONTRACEPTION/veterinary; SEX HORMONES/pharmacology