Reports

Ethanol Preference in the Rat as a Function of Photoperiod

Science  30 Jul 1971:
Vol. 173, Issue 3995, pp. 456-459
DOI: 10.1126/science.173.3995.456

Abstract

Ethanol-drinking was induced in laboratory rats that were maintained in total darkness. The established preference for ethanol was not reversed under conditions of constant illumination although a decrease in ethanol intake occurred. Administration of melatonin to rats maintained under "normal" photoperiods (9 hours of darkness during a 24-hour day) also induced ethanol-drinking.

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