325 virgin female rats were individually stimulated with a four-minute air blast on the same day they were individually placed with mature males. Controls were 358 comparable rats. Mating was determined by the presence of vaginal plugs. Χ2 analysis indicated that significantly more stimulated females were bred on Days 1, 2, 4, or 6 or more. The analysis on accumulative numbers bred revealed that significantly more stimulated females were bred by Days 2, 3, 4, and 5. No differences existed between stimulated and control groups in either litter size, incidence of abnormal young, or % conceptions.
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