Social and hormonal factors influencing infanticide and its suppression in adult male Long-Evans rats (Rattus norvegicus).

@article{Brown1986SocialAH,
  title={Social and hormonal factors influencing infanticide and its suppression in adult male Long-Evans rats (Rattus norvegicus).},
  author={Richard Earl Brown},
  journal={Journal of comparative psychology},
  year={1986},
  volume={100 2},
  pages={155-61}
}
In a series of six experiments, the experiential and hormonal factors influencing infanticide in Long-Evans hooded rats were examined. Males, but not females, purchased from a breeder as adults exhibited infanticide at high rates, whereas males reared in the laboratory until adulthood were less likely to be infanticidal. Sexual experience reduced the rate of infanticide in laboratory-reared males, and cohabitation with a female through pregnancy and lactation (including exposure to pups… CONTINUE READING