College of Animal Science and Technology Hunan Agricultural University Changsha 410128 ChinaLaboratory of Animal Nutritional Physiology and Metabolic Process Institute of Subtropical Agriculture Chinese Academy of Sciences Key Laboratory of Agro-ecological Processes in Subtropical Region Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central Ministry of Agriculture Changsha 410125 China;
College of Animal Science South China Agricultural University Guangzhou 510642 China;
Laboratory of Animal Nutritional Physiology and Metabolic Process Institute of Subtropical Agriculture Chinese Academy of Sciences Key Laboratory of Agro-ecological Processes in Subtropical Region Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central Ministry of Agriculture Changsha 410125 China;
College of Animal Science and Technology Hunan Agricultural University Changsha 410128 China;
Laboratory of Animal Nutritional Physiology and Metabolic Process Institute of Subtropical Agriculture Chinese Academy of Sciences Key Laboratory of Agro-ecological Processes in Subtropical Region Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central Ministry of Agriculture Changsha 410125 ChinaHunan Co-Innovation Center of Animal Production Safety Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients Changsha 410128 China;
Tea polyphenols; Antioxidant activities; Animal production; Signal transduction pathway;
