17 Beta-estradiol secretion by the ovary of the hypophysectomized chick embryo.
Ovaries of intact and hypophysectomized 16-day-old chick embryos were cultured in medium 199 for 24 hr, and 17 beta-estradiol released into the culture media was measured by radioimmunoassay. The difference of the means of the two series of measurements was not significant. It is concluded that 17 beta-estradiol secretion by the chick embryo ovary is not under pituitary control, at least not before the stage of 16 days of incubation.
D000818:Animals; D002642:Chick Embryo; D004958:Estradiol / Q000378:metabolism*; D005260:Female; D007016:Hypophysectomy; D010053:Ovary / Q000378:metabolism*; D010902:Pituitary Gland / Q000502:physiology*; D013997:Time Factors
D004958:Estradiol