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    Investigation of Risk Factors and Biosecurity Measures Associated with Prevalence of Newcastle Disease Virus in Broiler Farms
    (2020) Meher, Mirza Mienur; Islam, Jaisan; Afrın, Marya
    Newcastle disease (ND) is one of the major viral diseases of poultry, remains a constant threat inpoultry farms that causes huge economic losses every year. However, little is known regarding thepotential risk factors of the disease in broiler. The study was undertaken to ascertain the potentialrisk factors and biosecurity measures in ND prevalent broiler farm. A total of 116 broiler farmswere considered as a sample size from a different area of Barishal district of Bangladesh in which19.83% ND prevalence was found. In the findings, the farmers (33.62%) who had training onpoultry farming, were significantly less ND positive case (7.69%). Besides this, among the differentrisk factors and biosecurity measures only shed location, ventilation, vaccination status, feeder andwaterer cleaning frequency, visitors accession, pets in the farm, use of disinfectant and seasonalvariation had significant effect on ND outbreak. However, among all the factors only farmerstraining (OR=0.025; 95% CI: 0.001-0.509), shed location (OR=0.035; 95% CI: 0.003-0.390),vaccination against ND (OR=0.017; 95% CI: 0.001-0.435) and use of disinfectant daily (OR=0.011;95% CI: 0.000-0.294) made a unique statistically significant contribution to the regression modeland the predictors had approximately similar strength on reporting ND outbreak. In completion, NDcan be reduced in broiler farms by improving the level of common biosecurity, farm managementpractices, and minimizing the potential risk factors through training of farmers, awareness buildup, and enforcement of these practices on the farms.