奶业是健康中国、强壮民族不可或缺的产业，是食品安全的代表性产业，是农业现代化的标志性产业和一二三产业协调发展的战略性产业。近10年来，我国奶业规模化、标准化、机械化、组织化水平大幅提升，质量安全达到历史最好水平。但是，在发展过程中依然面临严峻挑战。制约我国奶业发展的重大技术难题尚未破解，尤其是以“优质、健康”为核心的技术标准缺失，优质奶产品供给不能满足消费者的需求，市场竞争力偏低，这就迫切需要奶业从安全底线向优质发展转型升级。本书稿由国际奶牛营养领域的专家共同编撰，包括奶牛营养学、微生物组学、细胞生物学、牛奶风险评估、活性物质评价等内容，可为推动奶业高质量发展提供前沿技术。

Introduction
Emerging Trends in Agriculture
Session 1 Advances in Dairy Cow Nutrition
Modifying Gut Microbiota to Enhance Gut Health in Dairy Cows
Maximizing Fiber Digestion by Understanding and Manipulating the Ruminal Microbiome
Managing the 3 Critical Calf Periods
Interaction of Stocking Density, Cow Comfort, and Productivity: Effects on Lactating Cows
Factors Regulating Milk Protein Synthesis and Their Implications For Feeding Dairy Cattle
Mammary Development–Windows of Opportunity and Risk
Physiologic and Molecular Implications of Amino Acid Balancing During the Periparturient Period in Dairy Cows
New (and Old) Technologies to Improve Feed Efficiency of the Dairy Industry
Urea Metabolism and Regulation by Rumen Bacterial Urease in Ruminants-A Review
Rumen Microbiome - Challenges and Opportunities to Manipulate and Improveits Function
Towards Knowledge-Based Rational Strategies to Improve Nitrogen Utilizationin Dairy Cattle
Nutritional Effects on Immune Function and Mastitis in Dairy Cows
Nutrition, Metabolism, and Immune Dysfunction Affecting Reproduction in Postpartum Dairy Cows
Role of Nutrition During Pregnancy on Cow and Calf Health and Performance
Amino Acid Metabolism in Support of Lactation
Session 2 Advances in Milk Quality and Safety
Effect of Iron in Farm and Processing Water Sources on Milk Quality
Impact of Milk Hauling on Raw Milk Quality
Virulence, UHT Survival, and Biofilms in Bacillus cereus and Other Bacillus spp. in Milk
The Bovine Milk Microbiome: Origins and Potential Health Implications for Cows and Calves
Recent Advances in Milk Ingredient Development: the Role of MFGM and Phospholipids in the Biological Activity of Milk
Salmonella Remains a Threat in the Production of Powdered Infant Formula
Feeding Low Crude Protein Diets to Improve Efficiency of Nitrogen Use