Ninomiya K, Kimura T
Department of Biology, College of Arts and Sciences, University of Tokyo, Japan.
Physiol Behav. 1988;44(6):791-5. doi: 10.1016/0031-9384(88)90064-9.
Female mice preferred to investigate the odor of normal male urine to that of either castrated or preputialectomized male urine. Females showed no particular preferences in two-choice tests among castrated, castrated-preputialectomized and preputialectomized male urine. These results suggest that both urinary and preputial factors of males are involved in female attraction. In an experiment with urine mixtures, females preferred a mixture of urine from preputialectomized males and castrated males to a mixture of urine from preputialectomized males and castrated-preputialectomized males. This strongly suggests that the urinary factor is androgen-dependent, while the preputial factor is possibly androgen-independent. Further experiments demonstrated the possibility that the preputial odorous factor involved in female attraction is increased or newly formed after excretion of the secretion.
雌性小鼠更喜欢探究正常雄性尿液的气味，而不是去势或包皮切除雄性尿液的气味。在对去势、去势-包皮切除和包皮切除雄性尿液的二选一测试中，雌性没有表现出特别的偏好。这些结果表明，雄性的尿液和包皮因素都参与了对雌性的吸引。在尿液混合物实验中，雌性更喜欢去势雄性和包皮切除雄性的尿液混合物，而不是去势雄性和去势-包皮切除雄性的尿液混合物。这有力地表明，尿液因素是雄激素依赖性的，而包皮因素可能是非雄激素依赖性的。进一步的实验证明，参与吸引雌性的包皮气味因子在分泌物排出后可能会增加或新形成。
