title: Diurnal variations of plasma gonadotrophins in male domestic ducks during the sexual cycle.
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D004372:Ducks / Q000502:physiology*; D005640:Follicle Stimulating Hormone / Q000097:blood*; D007986:Luteinizing Hormone / Q000097:blood*; D008297:Male; D012098:Reproduction; D012621:Seasons
chemical_list: D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone