Which of the following describes normal stallion semen characteristics?

Normal stallion semen characteristics typically include attributes such as volume, motility, and morphology of sperm. The correct answer provides a semen volume of 60 ml, which is within the normal range for stallions, alongside 60% motile sperm. This level of motility, while not the highest, is generally acceptable in equine breeding standards since many breeding programs consider motility levels of 50% or higher to be functional.

In addition, the percentage of abnormal sperm is reported as 20%, which is reasonable within the context of normal stallion semen parameters. Abnormal sperm percentages can vary widely, but levels below 30% are often considered to indicate good semen quality.

The combination of these factors indicates that the characteristics listed align with expectations for normal, viable stallion semen, supporting effective breeding potential.