“Ultrasound as a mechanical method for male dog contraception”

Abstract: Therapeutic ultrasound (1.5 W/cm(2)) was investigated for its effect upon testicular size and consistency and semen quality in five dogs. Dogs were treated every other day with a total of three treatments and were examined up to 2 weeks after treatment. There was some tenderness after treatment and a significant decrease in testicular size and semen quality. This method may provide a suitable contraception technique in dogs and requires further investigation