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Microscopic evaluation of semen
Credit: Dr. Christine Skelly, PhD
Digital Credit: Marci Rene' Charest
Publisher: Michigan State University
Rights: Name must appear as a credit whenever the image is used -
Description: A microscope is essential to evaluate semen quality. At magnifications of 100 to 430, one may estimate the percentage of sperm moving progressively forward (preferably at least 70%), the proportion of sperm with aberrant movements (preferably no more than 10%), and the proportion of sperm with abnormal morphology (preferably no more than 10%). A densitometer or a hemacytometer may be used to determine the concentration of sperm in the semen. Alternatively, an experienced person may estimate sperm concentration on the basis of previous experience.
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