食物限制对异性大仓鼠气味选择的影响

Influence of Food Restriction on Mate Choice in the Rat-likeHamster(Cricetulus triton)

通过Y型迷宫实验 ,以巢垫物为气味选择源 ,研究了大仓鼠对 60 %限食异性鼠和对照异性鼠气味选择的偏好。结果表明 ,雌雄大仓鼠均较多地选择对照异性鼠的气味 ,但这种选择上的差异并不显著(P >0 0 5 )。12 5I放射免疫法对实验鼠血清中睾酮 (雄性 )和雌二醇 (雌性 )含量的测定结果表明 ,对照鼠血清中睾酮 (雄性 )和雌二醇 (雌性 )激素与 60 %限食鼠无显著差异。表明 60 %限食对大仓鼠异性间气味选择的影响较小。

Rat-like hamsters(Cricetulus triton) displayed a statistically insignificant(P>0.05) preference for the odor of nesting material from ad-libitum fed individulas of the opposite sex to that from individuals that had been subjected to 60% food restriction(FR).This shows that the effect of a 60% FR on odor signals is not very strong.This was confirmed by the finding that the blood serum testosterone(T) content of male hamsters and estradiol(E 2) of female hamsters determined using 125I radioimmunity(PR) did not differ between ad-libitum fed and FR animals.