2011•Journal of Xichang CollegeRequires access

Changes of Maternal Antibody Level of Avian Influenza in Chicken and Influence on Immunization

Nan Ye

Abstract

The Avian Influenza maternal antibody and HI antibody of 1～28-day-age Broiler chicken and Luoman chicken were respectively detected to institute scientific immune program.Avian Influenza oil emulsion vaccine of H5 and H9 were used in the test.The results showed that the H5 and H9 maternal antibody level were highest in 1-day-age chicken and cut down gradually.The H5 and H9 maternal antibody in Broiler chicken were respectively decreased to 4.2log2 and 4.3log2 after 11-day-age and that of Luoman chicken were decreased to 4.2log2 and 4.8log2 after 28-day-age.Broiler chicken and Luoman chicken could be respectively first immunized in 11-day-age and 7-day-age.The immune program used in the test could usefully prevent Avian Influenza in chichen.

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Key concepts: Broiler, Influenza A virus subtype H5N1, Antibody, Immunization, Biology, Immune system, Immunity, Veterinary medicine