Veterinary Andrology and Reproductive Techniques

CLASSIFICATION OF SPERM ABNORMALITY

There are different types of classifications available. They are

• Based on source of abnormality
• Based on effect on fertility
• Based on the location of abnormality

Based on source of abnormality

Primary abnormality, secondary abormality and tertiary abnormality.

• Primary abnormality
  • They are appearing at the time of formation of spermatozoa.
  • This is mainly caused due to aberration in spermatogenesis.
  • These abnormalities are arising due to developmental defects in seminiferous tubules of diseased, degenerative or hypoplastic or inherited sterile conditions.
• Secondary abnormality
  • These abnormalities are acquired at the time of transport of spermatozoa through epididymis, accessory sex glands and urethra.
• Tertiary abnormality
  • Caused by the semen handler after collection. It is mainly due mishandling.
  • Primary abnormalities are dangerous and they can be transmitted to their young ones also.

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Based on the effect on fertility

Major abnormality and minor abnormality.

• Major abnormalities – Abnormalities which are having more effect on fertility is called as major abnormalities.
• Minor abnormalities - Some abnormalities will have lesser effect and is called as minor abnormalities.

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Based on the location of the abnormality

Head abnormality, mid piece abnormality and tail abnormality

• This depends upon the region where the abnormality is located. It is divided in to head, mid piece and tail abnormalities.

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