Key Laboratory of Agro-Ecological Processes in Subtropical Region, Chinese Academy of Sciences, Institute of Subtropical Agriculture, Changsha, 410125 Hunan, China
China Scientific Observing and Experimental Station of Animal Nutrition, Feed Sci. in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock and Poultry, Changsha, 410125 Hunan, China
College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128 Hunan, China
Key Laboratory for Bio-Feed and Molecular Nutrition, Southwest University, 400715 Chongqing, China
通讯机构：
Key Laboratory of Agro-Ecological Processes in Subtropical Region, Chinese Academy of Sciences, Institute of Subtropical Agriculture, China
This study was conducted to determine the effects on performance and immune responses of Linwu ducks supplemented with high lysine-yielding Bacillus subtilis. The 200 and 41 days old female commercial Linwu ducklings were distributed randomly into four groups of 60 ducks each which were further replicated to three groups of 20 each. The ducks were placed on one of four dietary treatments: basal, basal with antibiotic (150 mg Aureomycin whose effective content was 15% per kg feed) and fed with basal diet but deleted lysine (0.15%) and respective...
