Relations between the consumption of antimicrobial growth promoters and the occurrence of resistance among Enterococcus faecium isolated from broilers

Hanne-Dorthe Emborg, J. S. Andersen, A.M. Seyfarth, Henrik Caspar Wegener

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The present study investigates, at farm level, the effect of the time-span between sampling and the last time a particular antimicrobial growth promoter (AGP) Was included in the feed on the probability of selecting an AGP-resistant Enterococcus faecium isolate from a broiler flock. The probability that I randomly selected E. faecium isolate was resistant to avilamycin, erythromycin or virginiamycin was 0.91, 0.92 and 0.84, respectively if the isolate originated from a broiler flock fed either avilamycin- or virginiamycin-supplemented feed. As the time-span between sampling and the last AGP Consumption increased, the probability of isolating an E. faecium isolate resistant to a particular AGP decreased (probability
Original languageEnglish
JournalEpidemiology and Infection
Volume132
Issue number1
Pages (from-to)95-105
ISSN0950-2688
Publication statusPublished - 2004

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