Comparative study between vasectomy and epididymectomy for preparation of teaser Ram

Al-Dahhan,; M.R.A,; Amen,; A.A,; K.I,; Al-Badry,

	Comparative study between vasectomy and epididymectomy for preparation of teaser Ram
The Iraqi Journal of Veterinary Medicine (IJVM)
Article 10, Volume 32, Issue 1, 2008, Pages 127-139 PDF (0 K)
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Abstract
Teaser rams were used for discovering estrus in ewes because this technique is very important for super ovulation,embryo transfer and transgenic animals programs.sever techniques were used for preparation of teaser animals especially in sheeps so this study was designed to compare between two surgical methods (vasectomy and epididymectomy). Six Assaf of breed rams,Clinical reproduction system,libido and laboratory examination (volume ejaculate,mass and individual motility and sperm concentration). were performed 2 week before experiment for qualification of the general health of the animals the animals were divided into two equal groups, Vasectomy in the first group and epididymectomy in the another.Cases were followed up clinically, laboratory examination and histological. Results showed that surgery of epididymectomy takes longer time than vasectomy.Vasectomiesed animals showed sever pain during first tow days with simple adhesion in the site of operation, while epididymectomy caused sever adhesion between the testis and skin with odema in the site of operation also the pain was sever in addition to, it takes longer time than in vasectomy. The seminal fluid examination showed disappear of life sperms immediately after operation vasectomy or epididymectomy also histological changes were obtained in both types of surgical methods ,which include reduce in the rate of spermatogenisis, thickness of basement membren,while these changes were more sever after vasectomy. Results of this study was showed that epididymectomy technique should superior results than vasectomy for longer time.

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