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Colicin Production in Relation to Pathogenicity Factors in Strains of Escherichia Coli Isolated from the Intestinal Tract of Piglets

Colicin produksjon relatert til enteropatogenitets faktorer hos stammer av Escherichia coli isolert fra tarmkanaler hos spedgris

Acta Veterinaria Scandinavica volume 26, pages 145–152 (1985)Cite this article

Abstract

Three hundred and fifteen E. coli strains isolated from piglets dead due to neonatal E. coli diarrhea or traumatic lesions, were examined for presence of enterotoxin production, K-antigens 88 and 99, antibiotic resistance and colicin-production.

Almost 100 % of the E. coli strains positive on enterotoxin production produced colicin, while approx. 17 % of the non-enterotoxigenic strains did so.

Ninety-nine % of the E. coli strains harbouring K-antigens were found to produce colicin, while approx. 23 % of the strains without detectable K-antigens did so.

In strains where neither K-antigens nor enterotoxin production was found, resistance against tetracycline, neomycin and ampicillin, and sensitivity against streptomycin, was more commonly found among colicin-producing strains, than among strains without colicin production.

Sammendrag

Forekomst av colicin produksjon, enterotoksin produksjon, K-antigen 88 og 99 og antibiotika resistens ble undersøkt hos 315 E. colistammer isolert fra tynntarmen hos spedgris døde pga. kolidiare eller traumatisering.

Colicin produksjon ble påvist hos nesten 100 % av alle enterotoksin-produserende E. coli-stammer, og hos 17 % av stammene uten påvisbar enterotoksin-produksjon.

Av alle E. coli-stammer med K-antigen produserte 99 % colicin. Av stammene hvor K-antigen ikke ble påvist produserte 23 % colicin.

Blant E. coli-stammer uten enterotoksin produksjon og uten Kantigen, ble resistens mot tetracyklin, neomycin og ampicillin samt sensitivitet mot streptomycin oftere påvist hos colicin-produserende stammer enn hos stammer som ikke produserte colicin.

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  1. National Veterinary Institute, P. O. Box 8156 Dep., 0033, Oslo 1, Norway

    Berit K. Djønne

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Djønne, B.K. Colicin Production in Relation to Pathogenicity Factors in Strains of Escherichia Coli Isolated from the Intestinal Tract of Piglets. Acta Vet Scand 26, 145–152 (1985). https://doi.org/10.1186/BF03546546

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Acta Veterinaria Scandinavica

ISSN: 1751-0147