Application of Enzyme-Linked Immunosorbent Assay for Detecting Antibody to Mycoplasma gallisepticum Infections in Poultry

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Abstract
An enzyme-linked immunosorbent assay (MYCO-ELISA) was developed to detect antibodies to M. gallisepticum (MG) in chicken sera. The assay was standardized in terms of optimum antigen concentration, serum dilution, conjugate dilution and incubation temperature, and time. The MYCO-ELISA antigen was prepared from MG whole bacterial cell or its disrupted cell suspension. Both preparations showed strong affinity for binding or adsorbing to the surface of polystyrene wells of the microtiter plate. The MYCO-ELISA was more sensitive than the hemagglutination-inhibition test. Cross-reactions were observed with sera from M. synoviae (MS)-infected birds.

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