[Use of teaser bulls].
D000818:Animals; D002417:Cattle / Q000502:physiology*; D005260:Female; D005298:Fertility; D007315:Insemination, Artificial / Q000662:veterinary*; D008297:Male; D012726:Sexual Behavior, Animal / Q000502:physiology*
Ispol'zovanie bykov-probnikov.