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Effect of surgical technique for unilateral orchiectomy on subsequent testicular function in Miniature Horse stallions.
Abstract: Management decisions on unilateral orchiectomy are often influenced by the potential for post operative return to successful breeding. The effects of 2 surgical methods (first intention [FI] vs. second intention [SI] incision healing) for unilateral orchiectomy on resulting semen quality and scrotal temperature were evaluated. Objective: To evaluate the effects of 2 surgical unilateral orchiectomy techniques on scrotal healing, size of the remaining testis and post operative sperm quality. Methods: Unilateral orchiectomy was performed on mature Miniature Horse stallions. Semen was collected prior to and up to 60 days after, unilateral orchiectomy. Semen parameters, scrotal and body temperatures, testis volume and days to incision healing were evaluated. Results: There was no effect of treatment or time on percent total sperm motility. Total sperm numbers were higher (P < 0.05) 60 days after unilateral orchiectomy compared with 14 and 30 days. Percent viable sperm were higher (P < 0.05) 30 and 60 days compared with pre- and 14 day post unilateral orchiectomy. Scrotal temperatures were lower after unilateral orchiectomy compared with preoperative values ( < or = 0.003). Higher scrotal temperatures were recorded in Group IF, as compared with Group IS, during recoveryfrom anaesthesia and at 1 and 2 h after surgery (P = 0.02). Mean time to incision healing was less in Group II (10.0 days) than in Group II (21.5 days; P = 0.05). Conclusions: In this study, total sperm motility was maintained and size of the remaining testis, total sperm numbers and percent viable sperm increased after unilateral orchiectomy. Incision healing time was shorter in Group II; however, surgical technique did not have an effect on semen quality at 30 and 60 days post unilateral orchiectomy. Conclusions: These data suggest that surgical technique for unilateral orchiectomy may not dramatically influence function of the remaining testis.
Publication Date: 2013-03-02 PubMed ID: 23447887DOI: 10.1111/j.2042-3306.2012.00639.xGoogle Scholar: Lookup The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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The research study investigates the effect of two different surgical techniques on postoperative sperm quality, scrotal temperature, and other variables in Miniature Horse stallions undergoing unilateral orchiectomy – removal of one testicle. The results indicate that the surgery doesn’t significantly impact the function of the remaining testis, with sperm quality unaffected by the surgical technique used.
Objective and Methodology
- The primary objective of the study was to assess the impact of two surgical procedures on postoperative scrotal healing, the size of the remaining testicle, and sperm quality following unilateral orchiectomy.
- The two techniques compared were first intention (FI) and second intention (SI) incision healing methods.
- Unilateral orchiectomy was performed on mature Miniature Horse stallions and semen was collected before and for a period of 60 days after the surgery.
- The research evaluated various parameters including semen quality, scrotal and body temperatures, testicular volume, and the time taken for the incision to heal.
Results
- The study found no impact of the type of treatment or time on the total percentage of sperm motility – the ability of the sperm to move efficiently.
- The total sperm count was higher 60 days after the unilateral orchiectomy compared to 14 and 30 days after the surgery.
- The percentage of viable sperm – live and capable of fertilizing an egg – was higher 30 and 60 days after the surgery, and lower before and 14 days after the surgery.
- Postoperative scrotal temperatures were found to be lower than the preoperative values.
- Group IF recorded higher scrotal temperatures during post-anaesthesia recovery and 1–2 hours after surgery, compared to Group IS.
- The time it took for the incision to heal was lesser in Group II than in Group II.
Conclusions
- The results of the study suggest that total sperm motility was maintained post-surgery. Also, the size of the remaining testis, the total sperm count, and the percentage of viable sperm increased after unilateral orchiectomy.
- Despite the healing time following incision being shorter in Group II, the researchers concluded that the surgical technique used had no significant impact on semen quality 30 and 60 days após unilateral orchiectomy.
- The overall conclusion of the data suggests that the surgical technique employed for unilateral orchiectomy does not majorly influence the function of the remaining testicle.
Cite This Article
APA
McCormick JD, Valdez R, Rakestraw PC, Varner DD, Blanchard TL, Cavinder CA, Sudderth AK, Kiser A, Love CC.
(2013).
Effect of surgical technique for unilateral orchiectomy on subsequent testicular function in Miniature Horse stallions.
Equine Vet J Suppl(43), 100-104.
https://doi.org/10.1111/j.2042-3306.2012.00639.x Publication
Researcher Affiliations
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, Texas, USA. jmccormick@cvm.tamu.edu
MeSH Terms
- Animals
- Horses / physiology
- Horses / surgery
- Male
- Orchiectomy / methods
- Orchiectomy / veterinary
- Semen / physiology
- Semen Analysis
- Testis / physiology
- Testis / surgery
Citations
This article has been cited 2 times.- Giangaspero BA, Bucci R, Del Signore F, Vignoli M, Hattab J, Quaglione GR, Petrizzi L, Carluccio A. Ultrasound Examination of Unilateral Seminoma in a Salernitano Stallion. Animals (Basel) 2022 Apr 6;12(7).
- Wang Y, Jin L, Ma J, Chen L, Fu Y, Long K, Hu S, Song Y, Shang D, Tang Q, Wang X, Li X, Li M. Hemicastration induced spermatogenesis-related DNA methylation and gene expression changes in mice testis. Asian-Australas J Anim Sci 2018 Feb;31(2):189-197.
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