Immunological changs of chicks from hens vaccinated with chicken infectious anemia(CIA)-infectious bursal disease(IBD) vaccine

This experiment was undertaken dynamic study of the number of T, B cell and the content of IgG,IgM,IgA in the peripheral blood, the number of T cells and IgG,IgM,IgA antibody producing cells in the Fabricius bursa, thymus, spleen, cecal tonsil, Harderian gland, the content of IgA, IgM, IgG in the tear, trachea fluid, bile, intestinal fluid of chicks from hens vaccinated with chicken infectious anemia(CIA) infectious bursal disease(IBD) vaccine. The results were as follows: The above mentioned items in the peripheral blood, immune organs and tissues or local fluid of chicks from hens vaccinated with CIA IBD vaccine increased in comparison with those of non immunized control. These results showed that function of humoral immune and cellular immune of chicks from the vaccinated hens could be markedly strongthened. Chicks challenged with CIAV IBDV, these immunological items of chicks from hens non immunized were evidently lower than those of chicks from vaccinated challenged.