Timing of the photoperiod and the hour of birth in rats

Nature. 1976 Apr 29;260(5554):780-1. doi: 10.1038/260780a0.
No abstract available

MeSH terms

  • Animals
  • Female
  • Labor, Obstetric*
  • Light*
  • Parity
  • Periodicity*
  • Pregnancy
  • Rats