A Retrospective Analysis of Chicken Diseases Diagnosed at The BRAC Poultry Disease Diagnostic Centre of Gazipur

Abstract

The pattern of occurrence of poultry diseases in commercial poultry farms was studied on post-mortem and other laboratory examinations of 3057 cases either dead or live chickens submitted for diagnosis of diseases at the BRAC Poultry Disease Diagnostic Centre, Gazipur during the two years period from January 2000 to December 2001. Of the 3057 birds obtained, of which diagnosis was confirmed in 79.9% cases and 20.1% remain undiagnosed due to lack of facilities. Highest case of diseases was recorded in breeder (37.2%) followed by broiler (34.9%), and lowest in layer (27.9%) birds. The diagnosed diseases of layers included colibacillosis (7.4%), salmonellosis (25.3%), fowl cholera (7.0%), mycoplasmosis (17.7%), Newcastle disease (8.8%), Gumboro disease (12.4%), coccidiosis (7.2%), GI nematodes (4.6%), GI cestodes (0.6%), egg peritonitis (3.4%), gangrenous dermatitis (0.8%), ascites (0.7%), aspergillosis (2.6%) and omphalitis (1.5%). The broilers (34.9%) and breeders (37.2%) were more or less equally susceptible to various diseases with exception of reproductive diseases. It may be concluded from this study that all age groups and types of chickens are susceptible to various diseases but laying period is most vulnerable, and most mortality of chickens are caused by salmonellosis, colibacillosis, fowl cholera, Gumboro disease, Newcastle disease and mycoplasmosis which demand immediate attention for prevention and control in commercial poultry farms.

Key words: Retrospective analysis; diseases; layers; broilers; breeders

DOI = 10.3329/bjvm.v1i1.1914

Bangl. J. Vet. Med. ( 2003 ). 1 ( 1 ) : 29 - 31