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Physiol Behav

Title:		Acceleration of reproductive development in female Djungarian hamsters by adult males
Author(s):		Reasner DS; Johnston RE;
Address:		"Department of Psychology, Cornell University, Ithaca, NY 14853"
Journal Title:		Physiol Behav
Year:		1988
Volume:		43
Issue:		1
Page Number:		57 - 64
DOI:		10.1016/0031-9384(88)90098-4
ISSN/ISBN:		0031-9384 (Print) 0031-9384 (Linking)
Abstract:		"Housing young female Djungarian hamsters (Phodopus campbelli) with an adult male accelerates uterine and ovarian development and there is a strong relationship between uterine weight and ovarian measures (e.g., follicular size). Uterine weights of females housed with an adult male for 10 days following weaning are comparable to values from females housed alone for 25 days. Removal of endogenous androgens by castration eliminated the capacity of adult males to accelerate reproductive development in young females and treatment of castrated males with exogenous androgens maintained the production of the acceleratory chemosignal. When adult male urine and ventral gland sebum were examined as possible sources for the acceleratory chemosignal, only male urine had an acceleratory effect on reproductive development. Thus, female Djungarian hamsters respond with accelerated reproductive development to androgen-dependent chemosignals in the urine of adult males. These mechanisms are similar to those found in several other rodents but contrast with the lack of such effects in the golden hamster (Mesocricetus auratus)"
Keywords:		Animals Cricetinae Female Male Ovary/physiology Sex Attractants/physiology *Sexual Maturation Smell/physiology *Social Environment Testosterone/physiology Uterus/physiology;
Notes:		"MedlineReasner, D S Johnston, R E eng Research Support, U.S. Gov't, Non-P.H.S. 1988/01/01 Physiol Behav. 1988; 43(1):57-64. doi: 10.1016/0031-9384(88)90098-4"