Journal article
Managemental influences on the selective proliferation of two strains of haemolytic Escherichia coli in weaned pigs
Epidemiology and Infection, Vol.100(2), pp.213-220
1988
Abstract
In an experimental study on a piggery it was found that haemolytic Escherichia coli of O-serotypes 138 or 139 proliferated in the intestinal tracts of pigs following weaning, with E. coli of the O-138 type also being occasionally recovered from unweaned pigs, and once from a sow. Organisms of the O-138 type produced heat labile enterotoxin and their presence in weaned pigs was associated with the development of severe post-weaning diarrhoea. E. coli of O-139 type produced a vero cell cytotoxin and were associated with a milder diarrhoea in weaned pigs. Under various managemental circumstances the O-138 type E. coli almost invariably proliferated after weaning. The O-139 strain of E. coli did however proliferate rather than the O-138 strain following the movement of weaned pigs to new accommodation, after weaned pigs were returned to their sow and then weaning again 5 days later, and very occasionally in pigs weaned at 5 weeks of age. In all these cases earlier proliferation of the O-138 E. coli had been detected, suggesting that this may be a prerequisite for proliferation of the O-139 strain.
Details
- Title
- Managemental influences on the selective proliferation of two strains of haemolytic Escherichia coli in weaned pigs
- Authors/Creators
- D.J. Hampson (Author/Creator)Z.F. Fu (Author/Creator)K.A. Bettleheim (Author/Creator)M.W. Wilson (Author/Creator)
- Publication Details
- Epidemiology and Infection, Vol.100(2), pp.213-220
- Publisher
- Cambridge University Press
- Identifiers
- 991005545328207891
- Copyright
- © Cambridge University Press 1988
- 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
- Infectious Diseases
- Public, Environmental & Occupational Health
- ESI research areas
- Social Sciences, general