The influence of male proximity and dietary restriction on the oestrous cycle of the rat.
D000818:Animals; D002940:Circadian Rhythm; D004032:Diet; D004971:Estrus; D005215:Fasting; D005260:Female; D008297:Male; D009929:Organ Size; D011247:Pregnancy; D051381:Rats; D012098:Reproduction; D012621:Seasons; D012726:Sexual Behavior, Animal; D013997:Time Factors; D014599:Uterus / Q000502:physiology; D014626:Vaginal Smears