Bovine Reproduction. Группа авторов

of the Penis and Prepuce Anesthesia for Castration References 18 Surgery of the Scrotum and its Contents Introduction Physical Examination of the Scrotum and Testicles Ultrasound of the Testicles Thermography of the Scrotum Semen Evaluation Scrotal and Testicular Disease and Injury Unilateral Castration Inguinal Hernia Repair References 19 Restorative Surgery of the Prepuce and Penis Introduction Fibropapilloma Hair Ring Persistent Frenulum: Delayed Preputial–Penile Separation Preputial Injury Preputial Prolapse Surgical Management of Preputial Injury Phimosis Paraphimosis Hematoma Penile Deviations References 20 Management of Urolithiasis Introduction Clinical Signs Diagnosis Treatment Surgical Management Other Procedures Prevention References 21 Preparation of Teaser Bulls Introduction Vasectomy Epididymectomy Penile–Prepuce Translocation Penopexy Preputial Pouch Technique (Ventral Slot with Preputial Orifice Obliteration) Other Procedures Summary References

      14  Section II: The Cow

      15  Anatomy and Physiology 22 Anatomy of the Reproductive System of the Cow Introduction Production Transport and Gestation Blood Supply Placenta References 23 Initiation of Puberty in Heifers Introduction Endocrine Events Development of the Female Reproductive Tract Factors that Influence Age of Puberty Genetic Markers for Age at Puberty Correlation Between Sire Scrotal Circumference and Age at Puberty of Daughters Management Options to Influence Age at Puberty Photoperiod Growth‐Promoting Implants Use of Progestins to Advance Onset of Puberty Nutritional Optimization of Puberty Effect of Heifer Temperament on Age at Puberty Influence of Bull Exposure on Age at Puberty Influence of Age of Dam on Follicular Reserves Monitoring Heifers for Attainment of Puberty References 24 Neuroendocrine Control of Estrus and Ovulation Introduction Functional Anatomy of the Hypothalamic–Hypophyseal Unit Hierarchical Control of Gonadotropin Secretion: The GnRH Pulse Generator Role of Gonadal Steroids Differential Control of Gonadotropins: FSH Nutritional Influences on the Hypothalamic–Hypophyseal Axis Pubertal Development