Dr. Xie Jingjing is an Associate Professor at the Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS). With over 15 years of research experience in animal nutritional physiology, she specializes in nutrient digestion, metabolism, and regulation in monogastric animals. Her team at CAAS has long focused on developing novel technologies to improve the precision and accuracy of feed and feed additive evaluation. The team has successfully established a full-chain intelligent animal nutrition research platform covering the entire process from digestion and metabolism to growth, which integrates self-developed core technologies and equipment: the SDS-III Automatic Simulated Digestion System, the CRS-1 Automatic Closed-circuit Respiratory Calorimetry System, and the IGS Poultry Intelligent Growth Sensing System. These technologies deliver standardized, cost-efficient, and animal-welfare-friendly solutions for industrial applications.