Food Animal Male Urogenital Surgery
Preputial issues
Pot bellied pigs can develop penile prolapse as can bulls, especially Bos indicus breeds. Bulls are treated by preputial resection (reefing) or amputation. Since preputial prolapse is common in Bos indicus breeds, those bulls can be treated with sheath elevation and/or prophylactic preputial resection if high risk. Sheath elevation involves removing a V-shaped wedge of skin between the umbilicus and the distal end of the sheath. Pigs are treated by phallopexy (but might be amenable to preputial resection as well).
Pigs also have a preputial diverticulum. The diverticulum is a pouch with two sacculations located dorsal and caudal to external orifice of prepuce. These pouches collect fluids/smegma and can become painful or abscessed, as well as smelly. The sacculations can be removed under general anesthesia via incisions dorsal and cranial to the orifice. Dissection is performed down to a blunt probe placed into the pouch. The pouch is dissected free, a clamp placed across the remaining stump, the pouch removed and the opening closed with an inverting suture pattern. Boars can return to breeding in 10-20 days.
Resources
Medical and Surgical Management of Conditions of the Penis and Prepuce, 2024 VCNA
L Reig et al. Surgical treatment of chronic penile prolapse in Vietnamese pot-bellied pigs: 5 cases (2016–2017). 2019 Vet Surg 48:890-896.