The influence of maternal age, parity and weight on litter size in the guinea-pig.
D000818:Animals; D001835:Body Weight; D001837:Body Weights and Measures; D005260:Female; D006168:Guinea Pigs; D006801:Humans; D008098:Litter Size; D008423:Maternal Age; D010298:Parity; D011247:Pregnancy / Q000502:physiology
BODY WEIGHT; GUINEA PIGS; PREGNANCY/physiology