Study on the prevalence of common infectious diseases of Layer & Sonali chicken in Chattogram district

Abstract

The goal of the study was to determine the common disease prevalence associated risk factors issues that the Layer & Sonali farmers in the Chattogram division, were facing. For the purpose of gathering primary data, a total of 141 respondents from 13 upazillas in Chattogram were randomly chosen. The farmers and their farming practices were assessed by examining the information gathered in a pre-structured questionnaire Diseases were diagnosed tentatively based on the owner’s complaint, clinical signs & postmortem lesions. The most prevalent diseases in Layer chicken were Avian influenza (55.4%), Colibacillosis (8.93%) & combinedly Infectious coryza, Mycoplasmosis, and Salmonellosis(7.14%). In Sonali chicken, the most prevalent diseases were Newcastle disease (69.23%) & Infectious Bursal disease (15.23). The factor contributing to disease prevalence was poor maintenance of farm biosecurity and overall management. Strict biosecurity, continuous surveillance programs, and group farm-based training can contribute to overcoming the problem.