Intensity of continuous light: threshold lower for persistent estrus than for retinal degeneration.
D000818:Animals; D001835:Body Weight; D004307:Dose-Response Relationship, Radiation; D004971:Estrus; D005123:Eye / Q000294:innervation; D005260:Female; D008027:Light; D009410:Nerve Degeneration; D009929:Organ Size; D010053:Ovary / Q000033:anatomy & histology / Q000473:pathology; D010786:Photoreceptor Cells / Q000473:pathology; D011247:Pregnancy; D051381:Rats; D012160:Retina / Q000473:pathology; D013997:Time Factors