Whitten effect

Whitten effect
initiation and synchronization of the estrous cycles and reduction of the frequency of reproductive abnormalities in female mice by the odor (pheromone) of a male mouse placed among them; when more than four female mice are placed together in a cage their estrous cycles become very erratic.

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  • Whitten effect — The Whitten effect is a phenomenon observed by W. K. Whitten (1956, 1966, 1968) whereby male mouse pheromone laden urine synchronizes the estrus cycle among unisexually grouped females. Although there is similarity with the McClintock effect, the …   Wikipedia

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  • Vandenbergh effect — The Vendenbergh effect is a phenomenon reported in 1969, in which an early induction of the first estrous cycle in prepubertal female mice as a result of exposure to the pheromone laden urine of a sexually mature (dominant) male mouse. See also * …   Wikipedia

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