Effect of Vasectomy on the Testosterone Levels and Testicular Structures in Bucks for Long Term

Articles in Press

Document Type : Research Article

Authors

• Dhurghamh Hameed alhaideri ¹
• Hussein Kareem Ibraheim ²

¹ Department of veterinary clinical sciences, Faculty of Veterinary Medicine, University of Kufa, Iraq

² Department of Forensic Evidences, College of Science, Al-Karkh University for Science, Baghdad, Iraq.

10.22067/ijvst.2025.93824.1558

Abstract

This study included twelve adult local breed Bucks to investigate the long-term effect of the vasectomy technique on the Testosterone levels, sexual efficiency, and testicular structures. The bucks were divided into 4 groups according to the duration after the surgery. The duration of sexual desire has, although shown an increase in the first week post-operation among all the study groups it declined until the fourth week. Furthermore, the ejaculate volume consistently showed a decrease until the end of the study. A similar pattern of decline, followed by an absolute lack, is noted in sperm motility in all the bucks by the end of the fourth week. Testosterone levels evaluated by enzyme-linked immunosorbent assay kits revealed fluctuations. Post operation testicular parenchyma sections in group 1 indicated injury to seminiferous tubules due to increase in the count of Leydig cells in group 1, while at 2nd month was separated and shrank that tubule, and decreased the Leydig cells account, in 3rd group was observed the seminiferous tubules disappeared, and extended the interstitial tissues with increased the Leydig cells number. In the 4th month, the interstitial tissue suffered from mild shrinkage, with the Leydig cells accounting for it. . It is concluded that the vasectomised bucks demonstrated the suitability to use the males for teasers at the first period. But the libido declined during the second period due to the scrotal pains. Then these pains was dropped in the third month due to its chronicity, which improved the sexual desire.

Keywords

• Leydig cells
• libido
• Seminiferous tubules
• Sertoli cells
• Sexual desire
• Spermatogonia
• Vasectomised buck

Main Subjects

• Surgery

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