Institute of Animal Nutrition Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education Sichuan Agricultural University Chengdu Sichuan 611130 China;
Institute of Animal Nutrition Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education Sichuan Agricultural University Chengdu Sichuan 611130 China;
Institute of Animal Nutrition Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education Sichuan Agricultural University Chengdu Sichuan 611130 China;
Institute of Animal Nutrition Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education Sichuan Agricultural University Chengdu Sichuan 611130 China;
Institute of Animal Nutrition Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education Sichuan Agricultural University Chengdu Sichuan 611130 China;
Institute of Animal Nutrition Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education Sichuan Agricultural University Chengdu Sichuan 611130 China;
Institute of Animal Nutrition Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education Sichuan Agricultural University Chengdu Sichuan 611130 China;
Biology Department Hope College Holland 49423 USA;
DSM(China)Ltd. PuDong New Area Shanghai 201203 China;
Institute of Animal Nutrition Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education Sichuan Agricultural University Chengdu Sichuan 611130 China;
Vitamin D_(3)metabolites; Vitamin; Bone turnover; Tibial mass; Meat duck;