title: [Age and seasonal changes in the concentration of gonadotropins in the blood of ducks].
mesh_terms: D000367:Age Factors; D000818:Animals; D004372:Ducks / Q000097:blood*; D006065:Gonadotropins, Pituitary / Q000097:blood*; D012621:Seasons
chemical_list: D006065:Gonadotropins, Pituitary
vernacular_title: Vozrastnye i sezonnye izmeneniia kolichestvennogo soderzhaniia gonadotropinov v perifericheskoĭ krovi utok.