Phoenix C H, Dixson A F, Resko J A
J Comp Physiol Psychol. 1977 Feb;91(1):120-7. doi: 10.1037/h0077300.
Plasma levels of testosterone (T), luteinizing hormone (LH), and cortisol were measured in 10 adult male rhesus monkeys before and shortly after coitus. Mean levels of T and LH did not increase significantly after coitus or in control (no ejaculation) tests, but cortisol levels did in both cases. In 10 different males, no significant change was found in the plasma levels of T after electroejaculation; but in control tests (electric current withheld), the mean level of T was significantly lower at 80 and 140 min, but not at 50 min, after the test. According to present evidence, the effect of ejaculation on T levels differs in primate and nonprimate species. The effects on T levels produced by living with sexually receptive female rhesus monkeys may differ from those produced by intimate but brief contact with them.
在10只成年雄性恒河猴交配前和交配后不久测量了睾酮（T）、促黄体生成素（LH）和皮质醇的血浆水平。交配后或对照（无射精）试验中，T和LH的平均水平没有显著增加，但两种情况下皮质醇水平均升高。在另外10只不同的雄性猴子中，电射精后血浆T水平没有显著变化；但在对照试验（不通电）中，试验后80分钟和140分钟时T的平均水平显著降低，而50分钟时没有降低。根据现有证据，射精对T水平的影响在灵长类和非灵长类物种中有所不同。与处于性接受期的雌性恒河猴生活在一起对T水平产生的影响可能与与它们进行亲密但短暂接触产生的影响不同。
