Bovine Reproduction. Группа авторов

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urethral stricture is a risk factor.

      Accurate heat detection is essential to any AI or embryo transfer program and teaser bulls are the best at detecting heat. There are multiple procedures for creating a teaser bull, with no single procedure being perfect. Each procedure has its advantages and disadvantages. Ultimately, the decision of which procedure to perform depends on the needs and expectations of the client (longevity of bull, postoperative complications, assured sterility). Additional factors that may impact procedural choice include facilities, veterinarian preference, cost, and herd status.

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      2 2 Hornbuckle, T., Ott, R., Ohl, M. et al. (1995). Effects of bull exposure on the cyclic activity of beef cows. Theriogenology 43: 411–418.

      3 3 Noordsy, J. and Ames, N. (2006). Food Animal Surgery, 4e, 229–239. Princeton, NJ: Veterinary Learning Systems.

      4 4 Morgan, G. and Dawson, L. (2008). Development of teaser bulls under field conditions. Vet. Clin. North Am. Food Anim. Pract. 24: 443–453.

      5 5 Gill, M. (1995). Surgical techniques for preparation of teaser bulls. Vet. Clin. North Am. Food Anim. Pract. 11: 123–136.

      6 6 McCaughey, W. and Martin, J. (1980). Preparation and use of teaser bulls. Vet. Rec. 106: 119–121.

      7 7 Baird, A., Wolfe, D., and Angel, K. (1992). Paraphimosis in a teaser bull with penile translocation. J. Am. Vet. Med. Assoc. 201: 325.

      8 8 Hoffsis G, Maurer L. (1972). Preparation of detector bulls by penile retraction and fixation. Proceedings of the Annual Convention of the American Association of Bovine Practitioners, pp. 114–116.

      9 9 Aanes, W. and Rupp, G. (1984). Iatrogenic preputial stenosis for preparation of teaser bulls. J. Am. Vet. Med. Assoc. 184: 1474–1476.

      10 10 Wolfe, D. (1986). Surgical procedures of the reproductive system of the bull. In: Current Therapy in Theriogenology, 2e (ed. D.A. Morrow), 353–380. Philadelphia: WB Saunders.

      11 11 Straub, O. and Kendrick, J. (1965). Preparation of teaser bulls by penectomy. J. Am. Vet. Med. Assoc. 147: 373–376.

Section II The Cow
Anatomy and Physiology

       Ben Nabors

       Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Starkville, MS, USA

Photo depicts (a) Ov, ovary, Uh, uterine horn, F, follicle, 22.1 (b) Corpus luteum, Image courtesy Dr. Fuller Bazer, Texas A & M, (c) Corpus lutea. Photo depicts the internal reproductive tract from oblique angle.

Photo depicts the internal reproductive tract from dorsal view.

      Uterine Tube

Photo depicts structures of the ovary.

      Uterus