Preference in female laboratory mice is influenced by social experience.

Mice must perceive and interpret the signals they are presented with to evaluate potential mates, and should show a preference for high quality conspecifics. The present experiment was designed to investigate preference for acoustic, olfactory, and acoustic + olfactory signals in laboratory mice. Eighteen female CBA/CaJ mice, socially housed or isolated, were tested to evaluate preference for signals produced by males. Social experience influenced female preference for male USV playback and soiled bedding. Female mice who had experience with males showed a stronger preference for olfactory signals, whereas female mice with experience only with other females preferred USV playback. Isolated mice showed a greater preference for signals of different modalities presented together than socially experienced mice. This preference may have occurred because of increased motivation to make social contact. The findings of this experiment illustrate that social experience could play a role in mate choice.