Levels of testosterone and 17-beta-estradiol in the seminal plasma of bulls and boars

age androgens animal animal domestique animal pour cuirs et peaux animales animales de carne animals artiodactyla artiodactyle azucares biological development bovidae bovide bovin bovine bovines bulls carbohidratos carbohydrates cattle crecimiento croissance domestic animals edad espermatozoo fisiologia fonction physiologique fructosa fructose gametes gametos ganado ganado bovino glucide growth hormonas hormonas sexuales hormone hormone sexuelle hormones immunological techniques livestock mammals meat animals methode methods oestrogens organic compounds physiological functions physiologie physiology radioimmunoassay reproduction rumiante ruminant ruminants sex hormones spermatogenese spermatogenesis spermatozoa sucres sugars taureau technique immunologique testosteronas testosterone toro vertebrados vertebrates vertebre