TY - JOUR PY - 1989// TI - Ovariectomy attenuates aggression by female rats cohabiting with sexually active sterile males JO - Physiology and behavior A1 - Albert, D. J. A1 - Petrovic, D. M. A1 - Walsh, M. L. SP - 225 EP - 228 VL - 45 IS - 2 N2 - 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.

Language: en

LA - en SN - 0031-9384 UR - http://dx.doi.org/ ID - ref1 ER -