title: Seasonal plasma profiles of testosterone and androstenedione in the Gentile di Puglia ram in southern Italy.
abstract: Seasonal plasma testosterone and androstenedione levels were determined by radioimmunoassay in the Gentile di Puglia ram. Androstenedione remains steady throughout the years, while testosterone shows seasonal changes. Testosterone is at high levels in winter, spring and summer and drops to a low concentration in autumn.
mesh_terms: D000735:Androstenedione / Q000097:blood*; D000818:Animals; D008297:Male; D012621:Seasons; D012756:Sheep; D013739:Testosterone / Q000097:blood*
chemical_list: D013739:Testosterone; D000735:Androstenedione