Honrado G I, Fleming A S
Department of Psychology, Erindale College, University of Toronto, Ontario, Canada.
J Biol Rhythms. 1996 Jun;11(2):103-12. doi: 10.1177/074873049601100203.
Interaction with female hamsters maintained under long photoperiods (LP) accelerates behavioral recrudescence in short photoperiod (SP) males. In this experiment, the authors investigated the effects of various types of female sociosexual cues on different measures of reproductive recrudescence in the male. Five groups of SP males were exposed to different female cues for 3 weeks (Weeks 12 to 15). At Week 16, males were allowed to interact with estrus females; behavioral, physiological, and fecundity measures were monitored. The results show that all measures responded in a pseudo-dose-dependent manner to the different female cues presented. SP males not exposed to any female cues and those exposed to distal visual, auditory, and volatile pheromonal cues from estrus females did not copulate, deposit sperm, or impregnate estrus females presented to them at Week 16. SP males allowed direct access to the bedding of estrus females showed marked improvements on these same reproductive measures by Week 16. However, SP males that interacted with LP females between Weeks 12 and 15 showed the greatest level of reproductive function at Week 16. These results show that the type of female sociosexual stimulation is important in accelerating reproductive recrudescence; whereas interaction with LP females may be important in accelerating behavioral recrudescence, both interaction with and exposure to the bedding of LP females may be important in accelerating physiological and reproductive success measures.
与处于长光照周期（LP）下的雌性仓鼠互动会加速短光照周期（SP）雄性仓鼠的行为复发。在本实验中，作者研究了各种类型的雌性社会性行为线索对雄性仓鼠生殖复发不同指标的影响。五组SP雄性仓鼠在3周时间里（第12至15周）暴露于不同的雌性线索下。在第16周，让雄性仓鼠与处于发情期的雌性仓鼠互动；监测行为、生理和繁殖力指标。结果表明，所有指标对所呈现的不同雌性线索均呈现出假剂量依赖性反应。未暴露于任何雌性线索的SP雄性仓鼠以及暴露于来自发情期雌性仓鼠的远距离视觉、听觉和挥发性信息素线索的雄性仓鼠，在第16周时不会与呈现给它们的发情期雌性仓鼠交配、射精或使其受孕。到第16周时，能够直接接触发情期雌性仓鼠垫料的SP雄性仓鼠在这些相同的生殖指标上有显著改善。然而，在第12至15周期间与LP雌性仓鼠互动的SP雄性仓鼠在第16周时表现出最高水平的生殖功能。这些结果表明，雌性社会性行为刺激的类型在加速生殖复发方面很重要；虽然与LP雌性仓鼠互动可能在加速行为复发方面很重要，但与LP雌性仓鼠互动以及接触其垫料在加速生理和生殖成功指标方面可能都很重要。
