Use of hormones and drugs.
D000822:Animal Husbandry / Q000379:methods*; D000818:Animals; D004358:Drug Therapy / Q000662:veterinary*; D006133:Growth Substances / Q000008:administration & dosage*; D006728:Hormones / Q000008:administration & dosage*
D006133:Growth Substances; D006728:Hormones