title: Effect of photoperiod and all-female grouping on the estrous cycle of the bandicoot rat, Bandicota bengalensis.
abstract: Female bandicoot rats showing irregular cycles in 12L:12D were exposed to light-darkness cycles of 1L:23D, 4L:20D and 8L:16D. Significant regularization of the estrous cycle was observed in 8L:16D with most of the rats exhibiting a regular 3-day cycle and the regularity was further enhanced by all-female grouping (4/cage).
mesh_terms: D000818:Animals; D004971:Estrus / Q000528:radiation effects*; D005260:Female; D008027:Light; D009115:Muridae / Q000502:physiology*; D010507:Periodicity; D011247:Pregnancy; D012744:Sex Ratio; D013997:Time Factors