title: Effect of enrofloxacin administration on excretion of Salmonella ententidis by experimentally infected chickens and on quinolone resistance of their Escherichia coli flora.
abstract: Chickens which had been experimentally-infected with a strain of Salmonella ententidis and treated by administration of enrofloxacin at commercially recommended concentrations in the drinking water, virtually eliminated this organism from the alimentary tract. However, an initially quinolone-sensitive Escherichia coli flora present in the birds' faeces was rapidly replaced by a quinolone-resistant flora which persisted after withdrawal of the medication. Resistance to quinolone in the form of nalidixic acid was transducible from a strain of S. typhimurium to S. enterinais with bacteriophage P22.
authors.affiliation: Institute for Animal Health, Compton Laboratory, Compton, Newbury, Berkshire, UK.
authors.forename: P A
authors.initials: PA
authors.lastname: Barrow
authors.forename: M A
authors.initials: MA
authors.lastname: Lovell
authors.forename: G
authors.initials: G
authors.lastname: Szmolleny
authors.forename: C K
authors.initials: CK
authors.lastname: Murphy