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Copulatory behavior can inhibit pregnancy in female rats
Science (New York, N.Y.)
|June 19, 1970
Abstract:
If female rats received genital stimulation soon enough after their male partners had ejaculated, sperm transport and subsequent pregnancy were inhibited. Manual stimulation by the experimenter or five intromissions by a male rat were sufficient stimuli to reduce the number of sperm found in the uterus and to reduce the number of uterine implantation sites.