Bovine Reproduction. Группа авторов

Neuroendocrinology of the Postpartum Period Novel Neuroendocrine Regulators of GnRH Neuronal Function References 25 Ovarian Follicular and Luteal Dynamics in Cattle Introduction Ovarian Development and Follicle Assembly Folliculogenesis and Oogenesis Ovulation and Oocyte Maturation References 26 Maternal Recognition and Physiology of Pregnancy Introduction Conceptus Elongation and Extraembryonic Membranes Uterine Histotroph Placental Vascularization Maternal Cardiovascular Function Maternal Nutrient Partitioning and Endocrinology Embryogenesis, Fetal Growth, and Organ Development Uterine Blood Flow References 27 Fetal Programming Introduction Adaptations During Pregnancy: Fetal and Placental Development Maternal Nutrient Restriction Offspring Performance Maternal Melatonin Supplementation Epigenetics and Fetal Programming References

      16  Breeding and Health Management 28 Biosecurity for Beef and Dairy Herds Introduction Developing a Biosecurity and Biocontainment Plan Tools for Intervention: Reducing Effective Animal Contacts Movement Control Barriers Special Considerations Summary References 29 Beef Heifer Development Introduction Replacement Heifer Economics Selection at Weaning Prebreeding Nutritional Management Prebreeding Selection and Management Breeding Season Management Postbreeding Through Calving Summary References 30 Dairy Heifer Development from Weaning to Calving Introduction The Weaned Heifer Summary References 31 Nutrition and Reproduction in the Beef Cow Introduction The 12‐Month Cow‐Calf Production Cycle – The Driver of Nutrient Requirements Body Condition Scoring – the Starting Point for Nutritional Management Post‐Weaning Nutritional Management – Protein and Energy Mineral and Vitamin Nutrition Heifer Development Bull Nutrition Fetal Programming Specific Nutritional Challenges – Pine‐Needle‐Induced Abortion Specific Nutritional Challenges – Fescue Toxicosis and Fertility Summary References 32 Interaction of Nutrition and Reproduction in the Dairy Cow Introduction Reproductive Goals Transition Period Retained Placenta and Metritis Ketosis and Hepatic Lipidosis β‐Glucans Milk Urea Nitrogen NEFA Concentration and Oocyte Formation Nutritional Heat Stress Abatement Body Condition Score Methionine Minerals and Vitamins