Antimicrobial Resistance in Commensal Escherichia coli Isolated from Pigs and Pork Derived from Farms Either Routinely Using or Not Using In-Feed Antimicrobials

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

3 Scopus Citations
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Author(s)

  • Kittitat Lugsomya
  • Jitrapa Yindee
  • Waree Niyomtham
  • Chanwit Tribuddharat
  • Padet Tummaruk
  • Nuvee Prapasarakul

Detail(s)

Original languageEnglish
Pages (from-to)1054-1066
Journal / PublicationMicrobial Drug Resistance
Volume24
Issue number7
Online published1 Sep 2018
Publication statusPublished - Sep 2018

Abstract

The aims of this study were (i) to evaluate whether routine in-feed antimicrobial use in pigs or not resulted in differences in antimicrobial resistance (AMR) E. coli at different pig producing stages, and (ii) to determine whether resistant strains were presented in pig meat postslaughter. A total of 300 commensal E. coli isolates were obtained and examined for antibiograms, AMR genes, plasmid replicons, and molecular types. The isolates were from two farms either using (A) or not using in-feed antimicrobials (NA), sampled four times during the production cycle and once postslaughter. E. coli resistant to aminoglycosides containing aadA1, aadA2, and aadB and extended-spectrum beta-lactamase-producing (ESBLP) E. coli containing bla(CTX-M-1) were significantly increased in the nursery and growing periods in farm A compared to farm NA. IncI1-I and IncHI2 were common in the nursery period and were shown to transfer bla(CTX-M) genes by conjugation. ST10 was the most common type only found in live pigs. ST604, ST877, ST1209, and ST2798 ESBLP were found only in live pigs, whereas ST72, ST302, and ST402 ESBLP were found in pig meat.

Research Area(s)

  • antimicrobial resistance, Escherichia coli, extended-spectrum beta-lactamese-producing Escherichia coli, longitudinal study, pig production, pork, ENTEROBACTERIACEAE, IDENTIFICATION, PREVALENCE, PLASMIDS, STRAINS, GENES

Citation Format(s)

Antimicrobial Resistance in Commensal Escherichia coli Isolated from Pigs and Pork Derived from Farms Either Routinely Using or Not Using In-Feed Antimicrobials. / Lugsomya, Kittitat; Yindee, Jitrapa; Niyomtham, Waree; Tribuddharat, Chanwit; Tummaruk, Padet; Hampson, David J.; Prapasarakul, Nuvee.

In: Microbial Drug Resistance, Vol. 24, No. 7, 09.2018, p. 1054-1066.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal