Morphology Semen is classified as either active, dead, or abnormal. Dead and abnormal cells may show irregularities in the head, neck, mid-piece, and tail. A less than 80% morphology result may mean reduced fertility. A healthy dog’s semen is white to whitish-gray in color. If the semen is yellow, it is not a cause for concern, but it may be a sign of an underlying medical condition. Typically, vets collect the sperm from dogs using sterile specimen cups or tubes. ultXTd. Dog sperm looks like small, tadpole-shaped cells that are approximately 0.1 mm in length. The

what color is dog sperm