The effects of ergosterol on the response of female chicks to oral oestrogens and progestogens.
The chick-oviduct assay was used to investigate the effects of dietary ergosterol on the response to oral progestogens and oestrogens. 2. Progestogens alone had no effect on the oviduct but the hypertrophy due to oestrogen was greatly enhanced by simultaneous treatment with progestogen at all dose levels tested. 3. Ergosterol had no effect on any of the responses of the oviduct studied.
D000818:Animals; D002645:Chickens / Q000378:metabolism*; D002715:Chlormadinone Acetate / Q000378:metabolism; D004054:Diethylstilbestrol / Q000378:metabolism; D004357:Drug Synergism; D004875:Ergosterol / Q000494:pharmacology*; D045166:Estradiol Congeners / Q000378:metabolism*; D004997:Ethinyl Estradiol / Q000378:metabolism; D005260:Female; D006984:Hypertrophy; D008535:Megestrol / Q000378:metabolism; D010057:Oviducts / Q000254:growth & development; D045167:Progesterone Congeners / Q000378:metabolism*
D045166:Estradiol Congeners; D045167:Progesterone Congeners; D002715:Chlormadinone Acetate; D004997:Ethinyl Estradiol; D004054:Diethylstilbestrol; D008535:Megestrol; D004875:Ergosterol