A Study On Prevalence Of Poultry Diseases In Poultry Farms At Sitakunda Upazilla In Chittagong

Abstract

The present study was conducted to investigate the prevalence of poultry diseases in broiler and layer farms in some selected areas of Sitakunda Upazilla under Chittagong District of Bangladesh during July, 2010 to September, 2010. During the period, a total of 20 farms, of which 10 broiler farms and 10 layer farms were investigated and birds were examined by clinical signs and postmortem lesions to diagnose the diseases. In broiler farms, the highest prevalence were found for IBD (26.92%), followed by ND (23.07%), Coccidiosis (12.82%), IBD+Colibacillosis (11.54%), Mycoplasmosis (7.7%), Pullorum (6.42%), Aspergillosis (6.42%) and Pullorum+ Colibacillosis (5.12%).15-21 days aged birds were most vulnerable to diseases. In layer farms, the highest prevalence of disease was found for Fowl typhoid (35.2%), followed by ND (29.63%), IBD (9.26%), Coccidiosis (7.4%), FT+Colibacillosis (7.4%), Mycoplasmosis (5.56%), LL (3.7%) and LL+Aflatoxicosis (1.85%). Birds aged, 3-8 wks and 8-20 wks were more vulnerable to diseases. The risk factors were identified as irregular vaccination schedule, poor ventilation and insufficient bio-security