日粮铬水平对肉鸡生长性能、免疫机能及胴体脂肪含量的影响
王丹莉,张敏红,杜荣,张卫红
Effect of dietary chromium picolinate level on growth performance, immune function and carcass fat content of broiler
动物营养学报 . 1999, (02): 19 -23 . 

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