THE EFFECT OF LIGHT ON MATURATION AND THE ESTROUS CYCLE OF THE COTTON RAT, SIGMODON HISPIDUS HISPIDUS1
- 1 April 1944
- journal article
- research article
- Published by The Endocrine Society in Endocrinology
- Vol. 34 (4) , 276-281
- https://doi.org/10.1210/endo-34-4-276
Abstract
Exposure to constant illumination of an intensity averaging approx. 30 foot-candles from birth had little effect on the development of the reproductive tract and maturation of the immature cotton rat, while exposure to constant darkness had a retarding effect. There was no significant difference between the avg. lengths of vaginal estrus or diestrus of adult [male] cotton rats kept in light and of those kept in darkness. Environmental disturbance affected the estrous cycle of the cotton rat, principally by causing a lengthened period of vaginal estrus.This publication has 10 references indexed in Scilit:
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