Oestrous cycle and presence of the male in water-deprived rats.
D000818:Animals; D001835:Body Weight; D004971:Estrus; D005260:Female; D008297:Male; D011247:Pregnancy; D051381:Rats; D012726:Sexual Behavior, Animal; D013217:Starvation; D013997:Time Factors; D014868:Water Deprivation