Manning A, Thompson M L
Anim Behav. 1976 Aug;24(3):523-33. doi: 10.1016/s0003-3472(76)80065-6.
Male BDF1 mice (the F1 progeny of a cross between C57BL/6 females with DBA/2 males) show a remarkable retention of sexual behaviour following castration. Two experiments were conducted to describe in detail the postcastration copulatory performance of the BDF1 male mouse and to determine to what extent such performance is influenced by experience prior to castration. Experiment I found that castration leads to significant increases in the number of mounts and intromissions needed to reach ejaculation, and to a significant increase in ejaculation latency. Experiment II found that although precastrational sexual experience is not essential for the performance of the ejaculatory reflex after castration, it does influence the frequency of its occurrence. Furthermore, type of post-weaning social experience influenced the display of ejaculatory behaviour by non-experienced castrates, as those with female social experience were superior to those with social experience with males or no social experience. The interactions of experience, hormones and genotype in the control of sexual behaviour in the BDF1 male are discussed.
雄性BDF1小鼠（C57BL/6雌性与DBA/2雄性杂交产生的F1后代）在阉割后仍表现出显著的性行为保留。进行了两项实验，以详细描述BDF1雄性小鼠阉割后的交配表现，并确定这种表现受阉割前经验影响的程度。实验一发现，阉割导致达到射精所需的爬跨和插入次数显著增加，射精潜伏期也显著延长。实验二发现，虽然阉割前的性经验对于阉割后射精反射的表现并非必不可少，但它确实会影响射精反射发生的频率。此外，断奶后的社交经验类型会影响无经验阉割小鼠的射精行为表现，因为有与雌性社交经验的小鼠优于有与雄性社交经验或无社交经验的小鼠。文中还讨论了BDF1雄性小鼠性行为控制中经验、激素和基因型之间的相互作用。
