Alteration of Ethanol Preference in Hamsters: Effects of Photoperiod and 5-Hydroxytryptophan
Relatively few investigators have made use of the golden hamster as an experimental animal for ethanol studies. This is somewhat surprising insofar as hamsters show a marked preference for ethanol solutions in free-choice experiments. Given a choice of water or a 10% ethanol solution, hamsters will drink 88% of their total fluid as ethanol solution (Arvola and Forsander, 1961). Furthermore, the most preferred concentration of ethanol for the male hamster is 15% (Arvola and Forsander, 1963) in contrast to the rat that shows a preference only for much lower ethanol concentrations.
KeywordsEthanol Solution Pineal Gland Ethanol Intake Total Darkness Male Hamster
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