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Rumen contents as a reservoir of enterohemorrhagic Escherichia coli.
- Source :
-
FEMS microbiology letters [FEMS Microbiol Lett] 1993 Nov 15; Vol. 114 (1), pp. 79-84. - Publication Year :
- 1993
-
Abstract
- We investigated the role of the rumen fermentation as a barrier to the foodborne pathogen, Escherichia coli O157:H7. Strains of E. coli, including several isolates of O157:H7, grew poorly in media which simulated the ruminal environment of a well-fed animal. Strains of E. coli O157:H7 did not display a superior tolerance to ruminal conditions which may facilitate their colonization of the bovine digestive tract. Unrestricted growth of E. coli was observed in rumen fluid collected from fasted cattle. Growth was inhibited by rumen fluid collected from well-fed animals. Well-fed animals appear less likely to become reservoirs for pathogenic E. coli. These results have implications for cattle slaughter practices and epidemiological studies of E. coli O157:H7.
- Subjects :
- Anaerobiosis
Animals
Culture Media
Escherichia coli drug effects
Escherichia coli pathogenicity
Fatty Acids, Volatile metabolism
Fatty Acids, Volatile pharmacology
Food Deprivation
Hydrogen-Ion Concentration
Virulence
Cattle microbiology
Escherichia coli growth & development
Gastrointestinal Contents microbiology
Rumen microbiology
Subjects
Details
- Language :
- English
- ISSN :
- 0378-1097
- Volume :
- 114
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- FEMS microbiology letters
- Publication Type :
- Academic Journal
- Accession number :
- 8293963
- Full Text :
- https://doi.org/10.1016/0378-1097(93)90145-r