The relevance of the social contact test "Wall" for evaluation of sexual motivation of male mice was tested and confirmed. Motivation of C57BL/6J male mice with alternative social experience (winners and victims in 10 and 20 daily male-male confrontations) was evaluated. Elevated primary sexual interest was detected in aggressive animals after 10 confrontations, while in submissive animals this interest was decreased; however after 20 confrontations sexual motivation in both groups was characterized by rapid exhaustion and low basal level of testosterone. Hence, the sexual function of male mice is inhibited under conditions of long social conflicts irrespective of previous experience of victories or defeats in male-male confrontations.
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