Increased litter size in the rat x-irradiated during the estrous cycle before mating.
D000818:Animals; D003338:Corpus Luteum / Q000528:radiation effects; D010064:Embryo Implantation / Q000528:radiation effects; D004971:Estrus; D005260:Female; D008098:Litter Size / Q000528:radiation effects*; D008686:Metestrus; D010060:Ovulation / Q000528:radiation effects; D011247:Pregnancy; D051381:Rats; D011919:Rats, Inbred Strains