Average gestation period, litter size, fertility rate and incidence of unilateral pregnancy in a rat colony.
D000818:Animals; D000830:Animals, Laboratory; D000831:Animals, Newborn; D000013:Congenital Abnormalities; D005260:Female; D005298:Fertility; D005313:Fetal Death; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D011270:Pregnancy, Animal; D051381:Rats; D011919:Rats, Inbred Strains; D012098:Reproduction; D012744:Sex Ratio