Selective and/or overlapping effect of pituitary hormones (thyrotropin, gonadotropin) on serum thyroxin and testosterone level in newly hatched cockerels.
Follicle-stimulating hormone and thyrotropin administered perinatally to cockerels have an overlapping effect on the testis and on the thyroid gland. Both hormones when given in one single dose considerably increased the serum level of both thyroxin and testosterone. In the case of chronic treatment performed in the perinatal period, the thyroxin level will similarly increase, though to a smaller extent, while the testosterone level decreases. The experiments studying the direct effect on hormone secretion proved the overlapping effect of the hormones in the perinatal period.
D000818:Animals; D000831:Animals, Newborn / Q000254:growth & development*; D002645:Chickens; D004347:Drug Interactions; D005640:Follicle Stimulating Hormone / Q000494:pharmacology*; D008297:Male; D013737:Testis / Q000187:drug effects / Q000254:growth & development; D013739:Testosterone / Q000097:blood*; D013961:Thyroid Gland / Q000187:drug effects / Q000254:growth & development; D013972:Thyrotropin / Q000494:pharmacology*; D013974:Thyroxine / Q000097:blood*
D013739:Testosterone; D005640:Follicle Stimulating Hormone; D013972:Thyrotropin; D013974:Thyroxine