It was found earlier that winners (male mice with experience 20 daily victories in aggressive agonistic encounters) showed enhanced aggression after a 2-week no-fight period, compared to their respective levels of aggressive behavior before the fighting deprivation. In this work we showed that sucrose solution intake in the deprivation period attenuated the level of post-deprivation aggression and decreased anxiety in such animals. Negative correlations were found between sucrose intake and aggression level. Putative mechanisms of attenuating sucrose effect on aggressive behavior are discussed.
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