Seasonal changes in the oestrous response by the overiectomized ewe to progesterone and oestrogen.
D000818:Animals; D003271:Contraceptive Agents, Female; D004967:Estrogens / Q000494:pharmacology*; D004971:Estrus / Q000494:pharmacology*; D005260:Female; D006801:Humans; D010507:Periodicity; D011374:Progesterone / Q000494:pharmacology*; D012621:Seasons; D012756:Sheep / Q000502:physiology
D003271:Contraceptive Agents, Female; D004967:Estrogens; D011374:Progesterone
ESTROGENS/pharmacology; ESTRUS/pharmacology; PERIODICITY; PROGESTERONE/pharmacology; SHEEP/physiology