STUDY ON PREVALENCE OF POULTRY DISEASES AT SADAR UPAZILA OF DINAJPUR DISTRICT IN BANGLADESH

Abstract

This study was designed with a view to investigate the prevalence of poultry diseases in sadar upazila of Dinajpur district of Bangladesh. The research was conducted from September 2016 to August 2017. Commercial birds which were registered for the diagnosis and treatment as well as the birds registered during direct field visit, were considered as the experimental birds. A total Number of 245 clinically affected or dead birds were diagnosis for the disease. Along with the postmortem lesion, clinical history of vaccination, flock size, previous history of disease and clinical sings were recorded for the tentative diagnosis of the disease. The common diseases encountered in birds were viral diseases 60.38% (New castle disease 23.67%, Infectious Bursal disease 35.51%, Fowl Pox 1.2%), bacterial disease 25.29% (Salmonellosis 6.53%, Colibacillosis 13.46%, Necrotic enteritis 3.67%, Chronic respiratory disease 1.63%), Mycoplasmal disease (Mycoplasmosis 8.2%) and parasitic disease (Coccidiosis 6.13%).In respect of season the highest prevalence was found in rainy season (47.51%) followed by summer season (35.48%) and winter season (17.21%). Among the infectious diseases Necrotic enteritis was significantly (P<0.05) higher in rainy season (3.26%) but Mycoplasmosis was significantly (P<0.01) higher in winter season (4.49%) and other infectious diseases were not significantly differed among seasons.Age had significant (p<0.05) effect on the prevalence of New castle disease, Infectious bursal disease, Fowl pox, Salmonelloss, Nectrotic enteritis, Coccoddiosis, but no significant (p>0.05) effect on the prevalence of Collibacillisis, Chronic respiratory disease and Mycoplasmosis. It concluded that viral disease are very high at study which is big problems to develop poultry Industry