Ovarian 125I transference in the laying Japanese quail: apparent stimulation by FSH and lack of stimulation by TSH.
Six-hour accumulations of 125I were measured in the growing oocytes and thyroids of laying Japanese quail injected with 0.002 to 2 mg. of FSH or 0.004 to 4 I.U. of TSH per day for six days. FSH at 0.2 and 2 mg./day increased the 125I content of the growing oocytes to 1.4 times the control values. The numbers and the total weights of these growing oocytes doubled. The egg-laying rate remained unchanged. The FSH-induced apparent stimulation of 125 I transference was seen as a consequence of the increase in oocyte material rather than to a direct effect of FSH on the membranes of the avarian follicular cells. TSH did not increase the transference of 125I.
D000818:Animals; D003370:Coturnix / Q000378:metabolism* / Q000502:physiology; D005260:Female; D005640:Follicle Stimulating Hormone / Q000494:pharmacology*; D007455:Iodine / Q000378:metabolism*; D008297:Male; D009865:Oocytes / Q000187:drug effects / Q000378:metabolism; D010053:Ovary / Q000378:metabolism*; D010058:Oviposition; D011784:Quail / Q000378:metabolism*; D013961:Thyroid Gland / Q000187:drug effects / Q000378:metabolism; D013972:Thyrotropin / Q000494:pharmacology*
D005640:Follicle Stimulating Hormone; D013972:Thyrotropin; D007455:Iodine