Maturation of rat oocytes in vitro related to the in vivo stages of the 4- and 5-day estrous cycle: morning and evening cultures.
D000818:Animals; D002478:Cells, Cultured; D002940:Circadian Rhythm; D004971:Estrus; D005260:Female; D009865:Oocytes / Q000254:growth & development*; D010063:Ovum / Q000254:growth & development*; D011247:Pregnancy; D051381:Rats