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Use of B-Mode, Linear Array Ultrasonography for Evaluating the Technique of Bovine Artificial Insemination

Department of Animal Science, Virginia Polytechnic Institute and State University, Blacksburg 24061

ABSTRACT

B-Mode, linear array ultrasonography was used to evaluate the site of semen deposition in live cows. The insemination sheath was modified to hold a brass bead that was deposited at the simulated site of semen deposition. The position of the bead was identified by ultrasonography and the bead was recovered by pulling a nylon line that was attached to the bead. An ultrasound technician identified placement of the bead in the site designated for semen deposition by a skilled inseminator in 24 of 25 cases. This procedure improves methods for inseminator training by providing a method of evaluating insemination technique using live animals rather than excised reproductive tracts. The ultrasound equipment used for inseminator evaluation is affordable, portable, and does not pose a human health risk.

¹ Present address: College of Veterinary Medicine, University of Georgia, Athens 30602.