title: Preparation and use of teaser bulls.
abstract: Bilateral partial epididymectomy was performed on 23 bulls. These bulls were used to detect oestrus under two different management systems. The results obtained were compared with simultaneous plasma progesterone assays, and indicated that teaser bulls can provide accurate detection of oestrus.
mesh_terms: D000818:Animals; D001947:Breeding / Q000379:methods*; D002417:Cattle / Q000502:physiology* / Q000601:surgery; D004822:Epididymis / Q000601:surgery; D004972:Estrus Detection / Q000379:methods*; D005260:Female; D008297:Male; D011247:Pregnancy; D011374:Progesterone / Q000097:blood; D012726:Sexual Behavior, Animal
chemical_list: D011374:Progesterone