Association of anatomopathological findings of avian colibacillosis with Escherichia coli virulence genes.

Abstract:

Escherichia coli pathogenic to birds is responsible for infections that contributes to great economic losses in the poultry industry. This pathotype can determine various pathological injuries, especially aerossaculites, hepatitis, onfalites and pericarditis. The manifestation of different pathological findings in birds with colibacillosis may be associated with the presence of different combinations virulence genes. Among the virulence genes most frequently detected in Escherichia coli pathogenic for birds are the antigenic structures (somatic O, capsular K, fimbrial F and flagellar H), vat, colicin V, irp2, tsh, papC, IUCD, iss and astA. The presence of certain combinations of virulence genes confer the higher strains to survive, adhere, colonize and develop septic.

Año de publicación:

2016

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Fuente:

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