Escherichia coli is probably the most famous bacteria in broiler production .... Along with Mycoplasma, it is responsible for many economical losses (meat produced of antibiotics spent to fight against). Colibacillosis is indeed the most frequently reported disease in surveys of poultry diseases or condemnations at processing. Yogaratnam in 1995, for instance, showed that 43% of broiler carcass...

Background: Foodborne outbreaks associated with shiga toxin-producing Escherichia coli (STEC) have been well documented worldwide. STECs are major causative agents of gastroenteritis in humans that may be complicated by hemorrhagic colitis (HC), hemolytic uremic syndrome (HUS), and thrombotic thrombocytopenia purpura (TTP). OBJECTIVES: The aim of this study was to investigate the presence of vi...

Background: Avian pathogenic Escherichia coli (APEC) strains have been associated with various disease conditions in avian species due to virulence attributes associated with the organism. Aims: This study was carried out to determine the in vitro pathogenic characteristics and virulence encoding genes found in E. coli strains associated with colibacillosis in chickens. Methods: Fifty-two stock...

Colibacillosis in chickens caused by avian pathogenic Escherichia coli (APEC) is known to be aggravated preceding infections with infectious bronchitis virus (IBV), Newcastle disease (NDV) and metapneumovirus (aMPV). The mechanism behind these virus-induced predispositions for secondary bacterial poorly understood. Here we set out investigate the immunopathogenesis of enhanced respiratory colib...

A chemical characteristic of the feces of diarrheal piglets permits differentiation among piglets receiving antibiotic treatment and those with colibacillosis or dyspepsia. A high concentration of lactic or succinic acid was observed in the diarrheic feces of piglets receiving antibiotic treatments and those with dyspepsia; however, no lactic or succinic acids were detected in piglets with coli...

Avian pathogenic E. coli (APEC) is responsible for economic losses in all poultry farms. Certain virulence factors have been proposed as a means of controlling APEC infections, including some proteins to be used for vaccination. In the study we report here, one of the major virulence factors, the iss (increased serum survival) gene, from E. coli strain χ1378, isolated from poultry colibacillosi...

avian pathogenic e. coli (apec) is responsible for economic losses in all poultry farms. certain virulence factors have been proposed as a means of controlling apec infections, including some proteins to be used for vaccination. in the study we report here, one of the major virulence factors, the iss (increased serum survival) gene, from e. coli strain χ1378, isolated from poultry colibacillosi...

Colibacillosis associated with salpingitis occurred in a layer chicken flock on a commercial egg-producing farm in Japan. An increase in mortality was observed when the birds were at 62 weeks of age and reached 0.89% at 68 weeks of age. Postmortem examinations revealed pericarditis, perihepatitis, airsacculitis, and reproductive tract lesions in 4 affected birds at 69 weeks of age. Analysis of ...

P or Pap fimbriae of avian pathogenic Escherichia coli (APEC) have previously been shown to be important in the pathogenesis of colibacillosis. However, no study has been done to ascertain the effects of deletion of the genes responsible for P fimbrial biogenesis on APEC's in vitro and/or in vivo characteristics. In the present study, all 11 genes of the pap gene cluster were deleted from APEC ...