The origin of the pheromones causing pregnancy block in mice.

@article{Dominic1965TheOO,
  title={The origin of the pheromones causing pregnancy block in mice.},
  author={C. J. Dominic},
  journal={Journal of reproduction and fertility},
  year={1965},
  volume={10 3},
  pages={
          469-72
        }
}
Recent reports (Dominic, 1964, 1965) suggest that urine is the immediate source of the pheromones produced by male mice which cause the olfactory block to pregnancy in newly mated females (Bruce, 1960; Parkes & Bruce, 1961). Urine of grouped prepuberally or post-puberally castrated male mice retains the pregnancy blocking capacity to some extent (Dominic, 1965) but in each individual this capacity may be too far diminished by castration to be effective when the female is exposed to a single… CONTINUE READING

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