Abstract < /h3 > < p class= " a-plus-plus " > Avian pathogenic < em class= " a-plus-plus " > Escherichia coli < /em > (APEC) strains are responsible for significant losses to the poultry industry in many parts of the world. Although, many serotypes of < em class= " a-plus-plus " > E. coli < /em > are non pathogen, a relatively few number of serotypes carry virulence..."> Abstract < /h3 > < p class= " a-plus-plus " > Avian pathogenic < em class= " a-plus-plus " > Escherichia coli < /em > (APEC) strains are responsible for significant losses to the poultry industry in many parts of the world. Although, many serotypes of < em class= " a-plus-plus " > E. coli < /em > are non pathogen, a relatively few number of serotypes carry virulence..." /> Abstract < /h3 > < p class= " a-plus-plus " > Avian pathogenic < em class= " a-plus-plus " > Escherichia coli < /em > (APEC) strains are responsible for significant losses to the poultry industry in many parts of the world. Although, many serotypes of < em class= " a-plus-plus " > E. coli < /em > are non pathogen, a relatively few number of serotypes carry virulence..." />

Phylotyping and ColV plasmid-associated virulence genotyping of E. coli isolated from broiler chickens with colibacillosis in Iran

< h3 class= " a-plus-plus " > Abstract < /h3 > < p class= " a-plus-plus " > Avian pathogenic < em class= " a-plus-plus " > Escherichia coli < /em > (APEC) strains are responsible for significant losses to the poultry industry in many parts of the world. Although, many serotypes of < em class= " a-plus-plus " > E. coli < /em > are non pathogen, a relatively few number of serotypes carry virulence genes which make them damaging for chicken and other poultry. Previously, high prevalence of virulence genes carried on plasmid and/or chromosomal DNA has demonstrated in APECs obtained from different countries. The aim of the present study is characterization of < em class= " a-plus-plus " > E. coli < /em > isolated from broiler chickens with pericarditis and femoral head necrosis (FHN) associated with colibacillosis based on the phylogenetic typing and ColV plasmid-carried virulence genotyping. In present study, 290 < em class= " a-plus-plus " > E. coli < /em > isolates from pericardial sac ( < em class= " a-plus-plus " > n < /em >  = 120) and lesions of femur ( < em class= " a-plus-plus " > n < /em >  = 100) of chickens exhibiting clinical and necropsy findings of colibacillosis from poultry farms in Fars province, Iran, besides 70 isolates from the intestinal content of apparently healthy birds were phylotyped and examined for the presence of seven virulence genes ( < em class= " a-plus-plus " > ompT < /em > , < em class= " a-plus-plus " > hly < /em > , < em class= " a...
Source: Comparative Clinical Pathology - Category: Pathology Source Type: research