Veterinary Andrology and Reproductive Techniques

TESTICULAR DESCENT

• Testis during the foetal life is located in the abdominal cavity, they pass through the abdominal inguinal canal, and inside the scrotum
  • Enlargement of the gubernaculum and its disappearance play an important role in testicular descent
  • Intra-abdominal pressure in the foetus also determines testis descent
  • Androgen from foetal testis favours testis descent

Androgen from foetal testis favours testis descent

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Time of testicular descent

• Stallion - 9 -11 months of gestation
• Cattle -3 ½ - 4 months of gestation
• Sheep and goat -2 ½-3 months of gestation
• Swine -3 months of gestation
• Dogs- 5 days after birth
• Failure of testis to descent into the scrotum is called as cryptorchidism.
• The retained testis is called as cryptorchid testis.

Failure of testis to descent into the scrotum is called as cryptorchidism.

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