Thor D H, Flannelly K J
J Comp Physiol Psychol. 1979 Apr;93(2):223-8. doi: 10.1037/h0077554.
Attack behavior of reliably aggressive male Long-Evans rats against unfamiliar male intruders was observed immediately following copulation to one or more ejaculations. Compulatory series to five ejaculations did not differ from copulation to a single ejaculation or from a noncopulatory control in affecting aggressive behavior. Repetitive biting attacks occurred in all conditions, with comparable wounding. Evidently, the male postejaculatory state of insensitivity to sexual stimuli does not extend to stimuli eliciting intermale aggression. A second experiment determined the attack-eliciting capacity of foreign males placed in the home cage of an actively copulating male. As intromissions increased and the interval to ejaculation decreased, the probability of intermale aggression and interruption of copulation diminished. The results are discussed in reference to sexual and aggressive strategies of the copulating male.
在与一只或多只雌性交配至射精后，立即观察了具有可靠攻击性的雄性Long-Evans大鼠对陌生雄性入侵者的攻击行为。与单次射精或非交配对照组相比，交配至五次射精的系列交配在影响攻击行为方面没有差异。在所有条件下均发生了反复的撕咬攻击，且伤口程度相当。显然，雄性射精后的性刺激不敏感状态并不延伸至引发雄性间攻击的刺激。第二个实验确定了置于正在积极交配的雄性大鼠笼中的外来雄性引发攻击的能力。随着插入次数增加且射精间隔缩短，雄性间攻击和交配中断的概率降低。结合交配雄性的性策略和攻击策略对结果进行了讨论。
