Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1998 Mar;42(3):705-8.
doi: 10.1128/AAC.42.3.705.

Antimicrobial resistance in enterococci isolated from Turkey flocks fed virginiamycin

L A Welton  1 , L A Thal, M B Perri, S Donabedian, J McMahon, J W Chow, M J Zervos
Affiliations

Antimicrobial resistance in enterococci isolated from Turkey flocks fed virginiamycin

L A Welton et al. Antimicrob Agents Chemother. 1998 Mar.

Abstract

From 125 separate cloacal cultures from three turkey flocks fed virginiamycin, 104 Enterococcus faecium and 186 Enterococcus faecalis isolates were obtained. As the turkeys aged, there was a higher percentage of quinupristin-dalfopristin-resistant E. faecium isolates, with isolates from the oldest flock being 100% resistant. There were no vancomycin-resistant enterococci. Results of pulsed-field gel electrophoresis (PFGE) indicated there were 11 PFGE types of E. faecalis and 7 PFGE types of E. faecium that were in more than one group of flock cultures.

PubMed Disclaimer

Figures

FIG. 1
FIG. 1
PFGE of SmaI-digested genomic DNA from turkey isolates of ampicillin- and quinupristin-dalfopristin-resistant E. faecium. Lanes: 1 and 10; lambda ladder PFGE marker; 2 and 3; isolates from turkey culture group 3 (age, 59 days); 4 and 5, isolates from group 4 (age, 80 days); 6 and 7, isolates from group 1 (age, 24 days); 8 and 9, isolates from group 5 (age, 130 days). Lanes 3 and 4 are clonally related isolates from two different flocks. Lanes 6, 7, and 8 are clonally related isolates from the same flock at different ages.
See this image and copyright information in PMC

References

    1. Aarestrup F M. Occurrence of glycopeptide resistance among Enterococcus faecium isolates from conventional and ecological poultry farms. Microb Drug Resist. 1995;1:255–257. - PubMed
    1. Aarestrup F M, Ahrens P, Madsen M, Pallesen L V, Poulsen R L, Westh H. Glycopeptide susceptibility among Danish Enterococcus faecium and Enterococcus faecalis isolates of animal and human origin and PCR identification of genes within the vanA cluster. Antimicrob Agents Chemother. 1996;40:1938–1940. - PMC - PubMed
    1. Aarestrup F M, Bager F, Madsen M, et al. 35th Interscience Conference on Antimicrobial Agents and Chemotherapy Program Addendum. Washington, D.C: American Society for Microbiology; 1995. The effect of avoparcin as a feed additive on the occurrence of vancomycin-resistant Enterococcus faecium in pig and poultry production, abstr. LB-27; p. 7.
    1. Barnes E M, Mead G C, Impey C S, Adams B W. The effect of dietary bacitracin on the incidence of Streptococcus faecalis subspecies liquefaciens and related streptococci in the intestines of young chicks. Br Poultry Sci. 1978;19:713–723.
    1. Bates J, Jordens J Z, Griffiths D T. Farm animals as a putative reservoir for vancomycin-resistant enterococcal infection in man. J Antimicrob Chemother. 1994;34:507–517. - PubMed

Publication types

MeSH terms