title: An investigation of behavioral characteristics of rats developed from "senile" ova.
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000502:physiology*; D003216:Conditioning, Operant; D004327:Drinking Behavior; D005260:Female; D005306:Fertilization; D008425:Maternal Behavior; D009043:Motor Activity; D010060:Ovulation; D010063:Ovum / Q000502:physiology*; D049590:Postpartum Period; D011247:Pregnancy; D051381:Rats; D011930:Reaction Time; D012737:Sex Factors; D012726:Sexual Behavior, Animal; D012890:Sleep; D014886:Weaning