Journal article
A comparison of serotyping, BRENDA-typing and incompatibility grouping, and toxin testing of haemolytic Escherichia coli isolated from piglets before and after weaning
New Zealand Veterinary Journal, Vol.34(7), pp.101-103
1986
Abstract
Before weaning, some young pigs in a research piggery excreted in their faeces a weakly haemolytic non-enterotoxigenic serotype of Escherichia coli. After weaning, all of the pigs excreted strongly haemolytic Escherichia coli of known enteropathogenic serotypes (0-138 and 0-139). The 0-138 serotype produced vero cell toxin, whilst the 0-139 serotype elaborated heat labile enterotoxin. Haemolytic enterotoxigenic E. coli were also recovered from three-week-old unweaned piglets with so-called ‘milk scours’ and from pigs with post-weaning diarrhoea on two local commercial piggeries. Selected haemolytic isolates were compared using serotyping, bacterial restriction endonuclease DNA analysis (BRENDA) and incompatibility grouping. The three typing methods divided most of the isolates into the same groupings; the exceptions were two isolates with the same BRENDA pattern and incompatibility group, but with different H-serotypes, and eleven isolates with the same serotype and BRENDA pattern but which showed differences in colony compatibility such that they were divided into five subgroups of a single incompatibility type.
Details
- Title
- A comparison of serotyping, BRENDA-typing and incompatibility grouping, and toxin testing of haemolytic Escherichia coli isolated from piglets before and after weaning
- Authors/Creators
- D.J. Hampson (Author/Creator)K.A. Bettelheim (Author/Creator)P.J. Winter (Author/Creator)R.B. Marshall (Author/Creator)M.W. Wilson (Author/Creator)
- Publication Details
- New Zealand Veterinary Journal, Vol.34(7), pp.101-103
- Publisher
- Taylor & Francis
- Identifiers
- 991005541485207891
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 1 Clinical & Life Sciences
- 1.42 Bacteriology
- 1.42.545 E. coli Pathogenesis
- Web Of Science research areas
- Veterinary Sciences
- ESI research areas
- Plant & Animal Science