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Diagnosis, surgical treatment, and performance after unilateral castration in breeding bulls: 21 cases (1989–1999)

Jennifer M. IvanyDepartment of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210-1089.

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David E. AndersonDepartment of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210-1089.

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William H. AyarsSelect Sires Inc, 11740 US 42 N, Plain City, OH 43064.

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Donald R. MonkeSelect Sires Inc, 11740 US 42 N, Plain City, OH 43064.

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Thomas E. WittumDepartment of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210-1089.

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Bruce L. HullDepartment of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210-1089.

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Grant FrazerDepartment of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210-1089.

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Guy St-JeanDepartment of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506.
Present address is the Department of Clinical Sciences, College of Veterinary Medicine, Ross University, St. Kitts, West Indies.

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Abstract

Objective—To evaluate signalment, surgical treatment, postoperative complications, and future breeding success or semen production in a group of bulls with naturally occurring disease of the scrotum or testis.

Study design—Retrospective study.

Animals—21 bulls that underwent unilateral castration after evaluation for scrotal swelling.

Procedure—A computer-assisted search of medical records at 2 veterinary teaching hospitals was performed. Historical, diagnostic, surgical, and follow-up data were collected and analyzed for those bulls with scrotal swelling that underwent unilateral castration.

Results—Four of 5 pasture breeding bulls and 9 of 10 semen collection-center bulls successfully bred cows or produced viable semen within 6 months of surgery. Fourteen of 21 surgical procedures were performed after induction of general anesthesia. Sixty-six percent of procedures were performed as open castrations. Seventy-one percent of bulls developed postoperative complications, most of which were mild swellings. Unilateral castration returned 13 of 15 bulls with unilateral disease of the scrotum or testis to productive service by 6 months after surgery.

Conclusion and Clinical Relevance—Unilateral castration is an effective treatment for unilateral disease of the scrotum or testis in bulls, allowing return to reproductive function. (J Am Vet Med Assoc 2002; 220:1198–1202)

Abstract

Objective—To evaluate signalment, surgical treatment, postoperative complications, and future breeding success or semen production in a group of bulls with naturally occurring disease of the scrotum or testis.

Study design—Retrospective study.

Animals—21 bulls that underwent unilateral castration after evaluation for scrotal swelling.

Procedure—A computer-assisted search of medical records at 2 veterinary teaching hospitals was performed. Historical, diagnostic, surgical, and follow-up data were collected and analyzed for those bulls with scrotal swelling that underwent unilateral castration.

Results—Four of 5 pasture breeding bulls and 9 of 10 semen collection-center bulls successfully bred cows or produced viable semen within 6 months of surgery. Fourteen of 21 surgical procedures were performed after induction of general anesthesia. Sixty-six percent of procedures were performed as open castrations. Seventy-one percent of bulls developed postoperative complications, most of which were mild swellings. Unilateral castration returned 13 of 15 bulls with unilateral disease of the scrotum or testis to productive service by 6 months after surgery.

Conclusion and Clinical Relevance—Unilateral castration is an effective treatment for unilateral disease of the scrotum or testis in bulls, allowing return to reproductive function. (J Am Vet Med Assoc 2002; 220:1198–1202)