Critical time in pineal "priming".
D000704:Analysis of Variance; D000818:Animals; D000831:Animals, Newborn; D001835:Body Weight; D003624:Darkness; D005260:Female; D008027:Light; D009929:Organ Size; D010053:Ovary; D010870:Pineal Gland / Q000502:physiology; D011830:Radiation Effects; D051381:Rats; D013997:Time Factors; D014599:Uterus