title: [Response of the seminal vesicles of Gobius niger L. to castration, followed or without treatment with free or conjugated testosterone].
abstract: When approaching seasonal sexual maturity, precocious gonadectomy performed at the end of April induced seminal vesicle regression, but more tardive surgery performed 1 month later did not induce any regression. This unexpected result was interpreted as a change in the endocrine determinism. Among the precocious gonadectomized Fish, testosterone implants inhibited seminal vesicle regression but implants of sulfate-conjugated testosterone did not.
mesh_terms: D000818:Animals; D002369:Castration; D005399:Fishes; D008297:Male; D012621:Seasons; D012669:Seminal Vesicles / Q000187:drug effects*; D013739:Testosterone / Q000031:analogs & derivatives / Q000494:pharmacology*
chemical_list: D013739:Testosterone; C028627:testosterone-17-sulfate
vernacular_title: Réponse des vésicules séminales de Gobius niger L. à la castration, suivie ou non de traitement par la testostérone libre ou conjuguée.