Artículo
Frecuencia de genes de virulencia de Escherichia coli en lechones neonatos de un criadero intensivo de Argentina
Título:
Frequency of virulence genes of Escherichia coli among newborn piglets from an intensive pig farm in Argentina
Alustiza, Fabrisio Eduardo
; Picco, Natalia Yanina
; Bellingeri, Romina Valeria
; Terzolo, Horacio Raúl; Vivas, Adriana Beatriz
Fecha de publicación:
11/2012
Editorial:
Asociación Argentina de Microbiología
Revista:
Revista Argentina de Microbiología
ISSN:
0325-7541
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The enterotoxigenic and porcine enteropathogenic strains of Escherichia coli (ETEC and PEPEC) are agents associated with swine neonatal diarrhea, causing economic losses in swine production. The main goal of this study was to identify virulence genes of E. coli ETEC, verotoxigenic (VTEC) and PEPEC in intestinal strains responsible for swine diseases, by molecular typing using PCR in newborn piglets from an intensive farm system. Two hundred and sixty seven rectal swabbings from 7-15 day- old Landrace x Large White crossbred piglets were taken, and 123 randomly selected samples, biochemically compatible with E. coli, were tested for E. coli virulence genes by PCR. A frequency (%) compatible with: 68 ETEC, 24 VTEC, and 8 EPEC were found. Of all E. coli strains studied, 19.51 % carried at least one virulence gene. These data showed conclusively that, in spite of the application of strict sanitary measures in the intensive farm, genes encoding virulence factors of intestinal pathogens compatible with ETEC are still detected; therefore these strains will probably keep circulating among animals.
Palabras clave:
VIRULENCE GENES
,
ESCHERICHIA COLI
,
PIGLETS
,
INTENSIVE FARM
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Citación
Alustiza, Fabrisio Eduardo; Picco, Natalia Yanina; Bellingeri, Romina Valeria; Terzolo, Horacio Raúl; Vivas, Adriana Beatriz; Frecuencia de genes de virulencia de Escherichia coli en lechones neonatos de un criadero intensivo de Argentina; Asociación Argentina de Microbiología; Revista Argentina de Microbiología; 44; 4; 11-2012; 138-143
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