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鸭肝炎鸡胚化弱毒株MYchicken embryo attenuated strain MY of duck hepatitis virus
Ⅰ型鸭肝炎鸡胚化弱毒chicken embryo attenuated strain MY of duck hepatitis virus type Ⅰ
表明ILT弱毒疫苗株能使机体在接受ILTV后短时间内红细胞免疫功能降低，为疫苗弱毒株在体内毒力返强、隐性感染和继发感染创造了条件。suggesting ILT iscapable of lowering down the red blood cell immune function of thebirds . which would give way to subclinical infection and the virus re-survival .
欺小凌弱bully the small and the weak; said of a country
确定了乳酸杆菌SDn A株黏附消化道上皮细胞黏附因子性质; 对乳酸杆菌SDn A株粘附配体蛋白和鸡消化道上皮细胞受体蛋白,进行了提取、纯化与鉴定;sure of adhesion factor character of Lactobacillus SDn A adhering to the intestinal epithelial cells;