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Bovine Reproduction


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ring to engage the internal abdominal oblique muscle 3 cm from the first site. Both sutures are then tightened and tied simultaneously, with care taken to not constrict the spermatic cord. An overlapping suture pattern with non‐absorbable suture is used to close the external boarders to the inguinal ring (Figures 18.23 and 18.24). Enough room should be left adjacent to the spermatic cord for two fingers to pass through the inguinal ring. The parietal vaginal tunic is closed with a simple continuous pattern of absorbable suture, and the subcutaneous tissues of the inguinal area are closed to eliminate dead space. The skin is then apposed with a continuous interlocking pattern of non‐absorbable suture [17, 18].

Photo depicts exposure of inguinal ring.

      Source: Image courtesy of Darcie Sidelinger and Heath King.

Photo depicts caudal retraction of internal abdominal oblique (IAO) muscle.

      Source: Image courtesy of Darcie Sidelinger and Heath King.

Photo depicts sutures preplaced through medial and lateral borders of inguinal ring.

      Source: Image courtesy of Darcie Sidelinger and Heath King.

Photo depicts completed closure of inguinal ring.

      Source: Image courtesy of Darcie Sidelinger Heath King.

      Closure of the inguinal ring following unilateral castration is less complicated. Following ligation and transection of the spermatic cord, the lateral borders of the inguinal ring are closed with a series of preplaced simple interrupted or cruciate sutures. Large non‐absorbable suture can be used or the author has also utilized #4 braided polyglactin for closure. Regardless of the approach chosen, broad‐spectrum antibiotics are administered on the day of surgery and continued for five days. Non‐steroidal anti‐inflammatory drugs are also useful to control postoperative pain and inflammation. Recovery in a small lot versus a stall provides exercise, which helps to reduce postoperative swelling and edema.

      1 1 Senger, P. (2003). Pathways to Pregnancy and Parturition. Cadmus Professional Communications: Ephrata, PA.

      2 2 Wildeus, S. and Entwistle, K. (1983). Spermiogram and sperm reserves of hybrid Bos indicus × Bos taurus bulls after scrotal insulation. J. Reprod. Fertil. 69: 711–716.

      3 3 Waites, G. (1970). Temperature regulation and the testis. In: The Testis, vol. I (eds. A.D. Johnson, W.R. Gomes and N.L. VanDemark), 241–280. New York: Academic Press.

      4 4 Heath, A., Purohit, R., Powe, T., and Pugh, D. (1998). Anatomy of the scrotum, testes, epididymis and spermatic cord. In: Large Animal Urogenital Surgery, 2e (eds. D.F. Wolfe and H.D. Moll), 213–220. Baltimore: Williams and Wilkins.

      5 5 Wolfe, D., Carson, R., Hudson, R. et al. (1991). Mesothelioma in cattle: 8 cases (1970–1988). J. Am. Vet. Med. Assoc. 199: 486–491.

      6 6 Purohit, R., Hudson, R., Riddell, M. et al. (1985). Thermography of the bovine scrotum. Am. J. Vet. Res. 46: 2388–2392.

      7 7 Heath, A., Carson, R., Purohit, R. et al. (2001). Effects of testicular biopsy in clinically normal bulls. J. Am. Vet. Med. Assoc. 220: 507–512.

      8 8 Vogler, C., Bame, J., DeJarnette, J. et al. (1993). Effects of elevated testicular temperature on morphology characteristics of ejaculated spermatozoa in the bovine. Theriogenology 40: 1207–1219.

      9 9 Barth, A. and Bowman, P. (1994). The sequential appearance of sperm abnormalities after scrotal insulation or dexamethasone treatment in bulls. Can. Vet. J. 34: 93–102.

      10 10 Wolfe, D. (1998). Unilateral castration for acquired conditions of the scrotum. In: Large Animal Urogenital Surgery, 2e (eds. D.F. Wolfe and H.D. Moll), 313–320. Baltimore: Williams and Wilkins.

      11 11 Abbitt, B., Fiske, R., Craig, T., and Bitter, J. (1995). Scrotal hydrocele secondary to ascites in 28 bulls. J. Am. Vet. Med. Assoc. 207: 753–756.

      12 12 Wolfe, D. and Hudson, R. (1993). Diseases of the testicle and epididymis. In: Current Veterinary Therapy. Food Animal Practice, vol. 3 (ed. J. Howard), 794–796. Philadelphia: WB Saunders.

      13 13 Wolfe, D. and Wilborn, R. (2009). Diagnosis and management of conditions of the scrotum and testis. In: Current Veterinary Therapy. Food Animal Practice, vol. 5 (eds. D.E. Anderson and D.M. Rings), 360–363. St Louis: Saunders.

      14 14 Humphrery, J. and Ladd, P. (1975). Pathology of the bovine testis and epididymis. Vet. Bull. 45: 787–797.

      15 15 McEntee K. (1977). Pathology of the testis of the bull and stallion. Proceedings of the Annual Meeting of the Society for Theriogenology, pp. 80–91.

      16 16 McEntee K. (1979). Pathology of the epididymis of the bull and stallion. Proceedings of the Annual Meeting of the Society for Theriogenology, pp. 103–109.

      17 17 Riddell, G. (1998). Developmental anomalies of the scrotum and testes. In: Large Animal Urogenital Surgery, 2e (eds. D.F. Wolfe and H.D. Moll), 283–294. Baltimore: Williams and Wilkins.

      18 18 Hopper, R., King, H., Walters, K., and Christiansen, D. (2012). Management of urogenital injury and disease in the bull: the scrotum and its contents. Clin. Theriogenology 4: 332–338.

      19 19 Welles, E., Tyler, J., Wolfe, D., and Moore, A. (1995). Eperythrozoon infection in young bulls with scrotal and hindlimb edema, a herd outbreak. Theriogenology 43: 557–568.

      20 20 Niemark, H., Johansson, K., Rikihisa, Y., and Tully, J. (2001). Proposal to transfer some members of the genera Haemobartonella and Eperythrozoon to the genus Mycoplasma with descriptions of Candidatus Mycoplasma haemofelis, Candidatus Mycoplasma haemomuris, Candidatus Mycoplasma haemosuis, and Candidatus Mycoplasma wenyonii. Int. J. Syst. Evol. Microbiol. 5: 891–899.

      21 21 Wolfe, D., Hudson, R., Carson, R., and Purohit, R. (1985). Effect of unilateral orchiectomy on semen quality in bulls. J. Am. Vet. Med. Assoc. 186: 1291–1293.

      22 22 Heath, A., Baird, A., and Wolfe, D. (1996). Unilateral orchiectomy in bulls: a review of eight cases. Vet. Med. 8: 786–792.

      23 23 Wolfe, D. and Carson, R. (1992). Unilateral orchiectomy in bulls. In: Handbook for Methods of Study of Reproductive Physiology in Domestic Animals (eds. P.J. Dziuk and M. Wheeler), 270–272. Urbana, IL: University of Illinois Animal Science Department.

       Richard M. Hopper and Dwight F. Wolfe

       Department of Clinical Sciences, College