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
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