Jensen G D, Sassenrath E N, Blanton F L
J Gerontol. 1982 Jul;37(4):450-3. doi: 10.1093/geronj/37.4.450.
A comparison of younger mature and older perimenopausal female bonnet macaques showed differences in sexual interaction with males. Older females evoked significantly fewer copulations than did younger females. Although older females were cycling regularly, the midcycle (estrus) peaking of sexual interaction and levels of plasma estradiol were less pronounced in older than in younger females. Younger females were mounted more during estrus than during the luteal phase of their cycles, and the frequency of ejaculations and duration of intromissions were significantly greater during estrus. These cycle-phase differences were not observed with older females. The results suggest that aging in the female macaque is associated with reduction in sexual attractiveness to males. The possibility that changes in female proceptivity and receptivity contribute to this effect remains to be investigated.
对年轻成熟和更年期末期的雌性冠毛猕猴进行比较后发现，它们与雄性的性行为存在差异。与年轻雌性相比，老年雌性引发的交配显著减少。尽管老年雌性仍有规律地排卵，但与年轻雌性相比，其性互动的中期（发情期）峰值和血浆雌二醇水平在老年雌性中不太明显。年轻雌性在发情期比在其周期的黄体期更容易被骑跨，并且发情期的射精频率和插入持续时间显著更高。老年雌性未观察到这些周期阶段差异。结果表明，雌性猕猴的衰老与对雄性的性吸引力降低有关。雌性主动性和接受性的变化是否导致这种影响仍有待研究。
