Seroprevalence and comparative study of serological tests for detection of mycoplasma gallisepticum infection in commercial layer farms at few districts of Tamil Nadu, India
Submitted|
First Online 17-12-2024|
ABSTRACT
Avian mycoplasmosis causes great economic losses to the poultry industry, and one of the major agents involved is Mycoplasma gallisepticum (MG). The study was conducted from October 2008 to September 2010 to detect the presence of antibodies against MG in poultry layers. Serum from commercial poultry layers (n = 1350) was tested for MG by using enzyme-linked immunosorbent assay (ELISA) and serum plate agglutination (SPA). A total of 1350 sera from commercial poultry farm were collected and tested in winter, 453 (33.6%) and 350 (26.0%) were positive in SPA test and ELISA, and in summer, 297 (22.0%) and 219 (16.2%) were positive in SPA test and ELISA respectively. In Pearson chi-square test, statistical significant differectnce (p = 0.000) were observed between serological tests (SPA test and ELISA), and it was also demonstrated that seasonal occurrence of infection were higher in zone C. It has been found that MG infection is still an important disease problem in commercial layer farms and there is need for a stringent surveillance and control to combat avian mycoplasmosis in Tamil Nadu and these diagnostic methods (SPA and ELISA) should be only used as screening tools in monitoring programs.
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