Matthews M, Adler N T
J Comp Physiol Psychol. 1977 Aug;91(4):727-41. doi: 10.1037/h0077364.
Six experiments were performed to investigate the effects of the rat's copulatory behavior on sperm transport in the female's reproductive tract. Data showed that (a) transcervical sperm transport in rats requires 6--10 min after ejaculation for completion; (b) transcervical transport of large numbers of sperm requires that the vaginal plug remain lodged tightly in the vaginal-cervical junction; (c) maintenance of an immobile posture by the male, and possibly by the female, at ejaculation facilitates the deposition of a tightly lodged vaginal plug and the transport of large numbers of sperm through the cervix; (d) a single intromission occurring within 2 min after ejaculation disrupts sperm transport, but more copulatory stimulation is required to disrupt sperm transport when delivered between 4 and 10 min after ejaculation; and (e) the average postejaculatory interval is long enough to prevent a male from disrupting the transport of most of his own sperm from the preceding ejaculation.
进行了六项实验以研究大鼠交配行为对精子在雌性生殖道中运输的影响。数据表明：（a）大鼠射精后经宫颈的精子运输需要6 - 10分钟才能完成；（b）大量精子经宫颈运输要求阴道栓紧密嵌顿在阴道 - 宫颈交界处；（c）射精时雄性以及可能雌性保持不动姿势有助于形成紧密嵌顿的阴道栓并促进大量精子通过宫颈运输；（d）射精后2分钟内单次插入会干扰精子运输，但在射精后4至10分钟之间进行时，需要更多的交配刺激才会干扰精子运输；以及（e）射精后的平均间隔时间足够长，可防止雄性干扰其前一次射精的大部分精子的运输。
