Oestrous cycle of the asiatic elephant, Elephas maximus, in captivity.
D000818:Animals; D000829:Animals, Domestic; D000836:Animals, Zoo; D001947:Breeding; D003380:Courtship; D004606:Elephants / Q000502:physiology*; D004971:Estrus; D005260:Female; D011247:Pregnancy; D012726:Sexual Behavior, Animal; D013188:Sri Lanka; D013997:Time Factors; D014626:Vaginal Smears