determined targets: The index of thymus, The index of spleen, The index of Bursa of Fabricius The rates of transformation of lymphocyte (T,B) the content of IgA,IgG,IgM in serum The titers of NDHI antibodyResults:?

• 测定指标:胸腺指数、脾脏指数、法氏囊指数,外周血T、B淋巴细胞增殖率,血清IgA、IgM、IgG含量,NDHI抗体效价