Histopathological And Immune Response Against Infectious Bursal Disease In Chickens Vaccinated Against Newcastle Disease

[摘要] Two different vaccination programs against chicken infectious bursal disease (IBD) were compared. Results showed the first program including IBD vaccination at 8 and 16th day old as well as ND vaccination(live attenuated and inactivated types ) give high antibody titers at 21 days post vaccination with significantly difference (P≤0.0005) in comparison with the second program including only IBD vaccine . serological antibodies titer were determined to study the correlation between two different programs using ELISA test. pathological changes in vaccinated groups reveals mild & moderate lesions appear in liver, spleen and bursa of fabricius.

[学科分类] 土木及结构工程学

[关键词] IBD;ND;vaccination;ELISA test;Broiler;histopathology .