Dell'Aquila S, Crasto A, Alberico G, Varriale B, Pelosi A, Pierantoni R
J Endocrinol Invest. 1985 Jun;8(3):263-4. doi: 10.1007/BF03348490.
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.
通过放射免疫分析法测定了普利亚种公羊季节性血浆睾酮和雄烯二酮水平。多年来雄烯二酮水平保持稳定,而睾酮呈现季节性变化。睾酮在冬季、春季和夏季处于高水平,在秋季降至低浓度。