Sero-epidemiological investigation
was carried out to determine avian influenza virus in native chickens
at Dagonbhuyian, Feni district in Bangladesh. A total of 224 sera samples
were collected from the chickens of key beneficiaries during monsoon,
winter and summer seasons. All sera samples were examined for the detection
of antibodies of Avian influenza virus by indirect enzyme linked Immunosorbant
assay using commercially available Kits. The seroprevalence was found
25% in Ram Nagar union, 14.28% Matubhuyian union, 0% in Rajapur union
and 0% Jaylashker union. The overall seroprevalence of avian influenza
was recorded 9.82%. Sero-epidemiology of virus in relation to seasonal
variation was also carried out in the study areas and it was recorded
14.45% during monsoon, 3.70% during winter and 11.67% during summer
season. The investigation exhibited higher prevalence of avian influenza
in hens (10.83%) than cocks (8.65%). The investigation revealed the
highest (12.80%) prevalence in birds > 34 weeks of age group and the
lowest (3.13%) in birds of 8-16 weeks of age. However, Quick antigen
detection kit for avian influenza virus identification did not show
positive results of the samples collected for virological study.
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