Dominance Bruce effect

Rajendren G. and Dominic J. (1986). Effect of bilateral transection of the lateral olfactory tract on the male-induced implantation failure (Bruce effect) in mice. Physiol Behav 36, 587-590. 

Thomas, K.J. and Dominic, C.J. (1987) Evaluation of the role of the stud male in preventing male-induced implantation failure (the Bruce effect) in laboratory mice. Anim. Behav. 35, 1257-1259. 

The list of pheromone controls on reproductive behavior can be extended female pheromones inhibit estrus in adult females and delay puberty in juvenile females, Lee-Boot effect male pheromones can block pregnancy, Bruce effect pheromones from dominant females can suppress reproduction in subordinate females and so on. Have a look at Wyatt s book for an abundance of examples. 

Gangrade and Dominic (341) observed that this effect is high if a female is placed and housed below correlated males, but is reduced when the female is housed above the males and concluded that the pheromone involved in the Bruce effect is apparently nonvolatile and acts on females through contact. 

The male mouse produces a scent in his urine which induces and accelerates the estrus cycles of the female. This effect will be greater in females in which estrus was suppressed by aggregation. According to Nichols and Chevin (373), male urine is less effective than male presence in inducing the estrus cycle, while Gangrade and Dominic s (341) studies suggested that in contrast to the Bruce effect, the pheromone involved in the Whitten effect is a volatile substance. 

Gangrade, B.K., and C.J. Dominic Studies on the Male-Originating Pheromones Involved in the Whitten Effect and Bruce Effect in Mice. Biol. Reprod. 31, 89-96... 

Sahu, S.C., and C.J. Dominic Effect of Nembutal Anesthesia on the Pheromonal Block to Implantation (the Bruce Effect) in the Laboratory Mice. J. Adv. Zool. 6, 62-67 (1985). 

Hafer, A.A. 1990. Dominance status and its influence on the Bruce Effect in house mice. In Chemical Signals in Vertebrates 5, eds. D.W. Macdonald, D. Miiller-Schwarze S.E. Natynczuk, pp. 270-275, Oxford University Press, Oxford. 

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