Effect of photoperiod length on feedback sensitivity to estradiol in the female rat.
D000818:Animals; D001835:Body Weight / Q000187:drug effects; D002369:Castration; D004305:Dose-Response Relationship, Drug; D004343:Drug Implants; D004958:Estradiol / Q000008:administration & dosage / Q000494:pharmacology*; D004971:Estrus; D005246:Feedback; D005260:Female; D007279:Injections, Subcutaneous; D008027:Light; D007986:Luteinizing Hormone / Q000097:blood*; D009929:Organ Size / Q000187:drug effects; D011247:Pregnancy; D051381:Rats; D013997:Time Factors; D014599:Uterus / Q000033:anatomy & histology
D004343:Drug Implants; D004958:Estradiol; D007986:Luteinizing Hormone