Equine and Camelid Castration

Practice: Equine Castration

Key Takeaways

  • Open castration is better for larger, older stallions since you can see the artery and crush it individually.
  • Closed castration minimizes opening the peritoneal cavity but makes the procedure harder; restricted to younger patients
  • Avoid modified open/ modified closed techniques.
  • Large incisions are needed for drainage
  • Hemostasis is by tissue trauma – crush with emasculators (nut to nut) or twist with the Henderson. Ligatures are optional but handy.
  • Always tag the proximal part of the cord before you emasculate because it will be easier to check for bleeding.
  • Do not close the scrotum.
  • The epididymis does NOT produce testosterone and will NOT make a horse act like a stud.


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Level A

Level B



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Large Animal Surgery - Supplemental Notes Copyright © by Erin Malone, DVM, PhD is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, except where otherwise noted.