Laparoscopic Ovariectomy in Standing Mule Mares.

Summary

# Laparoscopic Ovariectomy in Standing Mule Mares Whilst mule mares are traditionally assumed sterile, they can demonstrate active estrous cycles and associated behavioural problems—a clinical challenge that conventional surgical approaches typically manage under general anesthesia, which carries inherent risks in equine hybrids. Petrizzi and colleagues performed bilateral standing laparoscopic ovariectomy using LigaSure vessel-sealing technology on ten mule mares, avoiding the complications associated with recumbency and deep sedation in these animals. The procedure proved reliably feasible, with LigaSure providing effective hemostasis and notably reducing operative time compared to conventional laparoscopic methods. All owners reported satisfaction with behavioural resolution following ovariectomy, suggesting the technique successfully addressed oestrogen-driven stereotypies. For practitioners managing reproductive behaviour in mule mares, this offers a practical, safer surgical alternative that warrants consideration as a refined approach within standing laparoscopic protocols.

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Key Findings

• •Bilateral standing laparoscopic ovariectomy using LigaSure technology was successfully performed in 10 mare mules without general anesthesia
• •LigaSure technology provided effective hemostasis and reduced surgical time
• •Owners reported satisfaction with resolution of behavioral problems post-operatively
• •Mule mares demonstrated estrus cycles and ovarian activity despite historical belief in sterility

Conditions Studied

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