It is unclear why the concentration of testosterone increases in the testicular vein after hemicastration without corresponding alteration in gonadotropins.

• 在成年大鼠, 半去势可以在促性腺激素没有明显改变的情况下导致睾丸静脉血液中睾酮浓度代偿性增加, 其机理尚不明了。