Albert D J, Petrovic D M, Walsh M L
Psychology Department, University of British Columbia, Vancouver, Canada.
Physiol Behav. 1989 Feb;45(2):225-8. doi: 10.1016/0031-9384(89)90122-4.
Female rats were individually housed with a single castrated male with a testosterone implant that maintained sexual and aggressive behavior. At weekly intervals, the resident male was removed and an unfamiliar female intruder was introduced into the colony. Attacks, bites, on-top, and piloerection of the resident female toward the intruder were scored. Females whose level of aggression toward the intruder was substantial and stable were either ovariectomized or sham-ovariectomized. Aggression tests resumed 1 week postoperatively and continued for an additional 3 weeks. The results confirm that female cohabiting with a sterile male become aggressive. They also demonstrate that ovariectomy greatly attenuates but does not entirely abolish aggression toward an unfamiliar female intruder. The results appear to contribute to a growing body of evidence suggesting that the biological substrate and behavioral form of aggression by females housed with males (including that following parturition) is a hormone-dependent aggression which parallels testosterone-dependent social aggression of males housed with females.
将雌性大鼠单独饲养，每只与一只植入睾酮的去势雄性大鼠放在一起，该雄性大鼠能维持性行为和攻击行为。每隔一周，将常驻雄性大鼠移走，并将一只陌生的雌性入侵者引入鼠群。对常驻雌性大鼠对入侵者的攻击、撕咬、骑跨和竖毛行为进行评分。对那些对入侵者的攻击水平显著且稳定的雌性大鼠进行卵巢切除或假卵巢切除。术后1周恢复攻击测试，并持续另外3周。结果证实，与不育雄性大鼠同居的雌性大鼠会变得具有攻击性。研究结果还表明，卵巢切除可大大减弱但并未完全消除对陌生雌性入侵者的攻击性。这些结果似乎为越来越多的证据提供了支持，表明与雄性大鼠同居的雌性大鼠（包括分娩后的雌性大鼠）的攻击行为的生物学基础和行为形式是一种激素依赖性攻击行为，这与与雌性大鼠同居的雄性大鼠的睾酮依赖性社会攻击行为类似。
