AVMA welfare positions evolve.
D000827:Animal Welfare; D000818:Animals; D002335:Carnivora; D002369:Castration / Q000662:veterinary; D002415:Cats; D002417:Cattle; D004285:Dogs; D011323:Primates; D012952:Societies; D013552:Swine; D013623:Tail / Q000601:surgery; D014081:Tooth Extraction / Q000662:veterinary; D014481:United States; D014730:Veterinary Medicine