Field Morphology and Interpretation

Semen morphology evaluation in the field should always be performed at 1000 × with oil immersion. The development of a spermiogram will aid the practitioner to interpret potential fertility of semen at the time of sampling as well as determine potential causes of an abnormal spermiogram. Bulls, which experience stress or impairment of thermoregulation of the testes for any reason, often experience a transitory decrease in the quality of sperm morphology. This can be recognized by a sequence of appearances of morphologic defects coupled with a thorough patient history.
Source: Veterinary Clinics of North America: Food Animal Practice - Category: Veterinary Research Authors: Source Type: research