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  • Title: Male odors that influence the preference of female mice: roles of urinary and preputial factors.
    Author: Ninomiya K, Kimura T.
    Journal: Physiol Behav; 1988; 44(6):791-5. PubMed ID: 3249754.
    Abstract:
    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.
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