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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/18504

Title: Presence of Antimicrobial Resistance and Antimicrobial Use in Sows Are Risk Factors for Antimicrobial Resistance in Their Offspring
Authors: Callens, Benedicte
FAES, Christel
Maes, Dominiek
Catry, Boudewijn
Boyen, Filip
Francoys, Delphine
de Jong, Ellen
Haesebrouck, Freddy
Dewulf, Jeroen
Issue Date: 2015
Citation: MICROBIAL DRUG RESISTANCE, 21 (1), p. 50-58
Abstract: This study investigated whether antimicrobial-resistant Escherichia coli in apparently healthy sows and antimicrobial administration to sows and piglets influenced antimicrobial resistance in fecal commensal E. coli from piglets. Sixty sows from three herds and three of their piglets were sampled at several time points. Antimicrobial usage data during parturition and farrowing were collected. Clinical resistance was determined for two isolates per sampling time point for sows and piglets using disk diffusion. Only 27.4% of E. coli isolates from newborn piglets showed no resistance. Resistance to one or two antimicrobial classes equaled 41.2% and 46.8% in isolates from sows and piglets, respectively, for the overall farrowing period. Multiresistance to at least four classes was found as frequently in sows (15.6%) as in piglets (15.2%). Antimicrobial resistance in piglets was influenced by antimicrobial use in sows and piglets and by the sow resistance level (p <= 0.05). Using aminopenicillins and third-generation cephalosporins in piglets affected resistance levels in piglets (odds ratios [OR] >1; p <= 0.05). Using enrofloxacin in piglets increased the odds for enrofloxacin resistance in piglets (OR=26.78; p <= 0.0001) and sows at weaning (OR=4.04; p <= 0.05). For sows, antimicrobial exposure to lincomycin-spectinomycin around parturition increased the resistance to ampicillin, streptomycin, trimethoprim-sulfadiazine in sows (OR=21.33, OR=142.74, OR=18.03; p <= 0.05) and additionally to enrofloxacin in piglets (OR=7.50; p <= 0.05). This study demonstrates that antimicrobial use in sows and piglets is a risk factor for antimicrobial resistance in the respective animals. Moreover, resistance determinants in E. coli from piglets are selected by using antimicrobials in their dam around parturition.
Notes: [Callens, Benedicte; Dewulf, Jeroen] Univ Ghent, Fac Vet Med, Vet Epidemiol Unit, Dept Reprod Obstet & Herd Hlth, B-9820 Merelbeke, Belgium. [Faes, Christel] Hasselt Univ, Interuniv Inst Biostat & Stat Bioinformat, Diepenbeek, Belgium. [Maes, Dominiek] Univ Ghent, Dept Reprod Obstet & Herd Hlth, Porcine Hlth Unit, Fac Vet Med, B-9820 Merelbeke, Belgium. [Catry, Boudewijn] Sci Inst Publ Hlth, Brussels, Belgium. [Boyen, Filip; Haesebrouck, Freddy] Univ Ghent, Dept Pathol Bacteriol & Avian Dis, Fac Vet Med, B-9820 Merelbeke, Belgium. [Francoys, Delphine] Feeding Co Ostyn, Vartos, Roeselare, Belgium. [de Jong, Ellen] Govt Anim Hlth Care Ctr Flanders, Lier, Belgium.
URI: http://hdl.handle.net/1942/18504
DOI: 10.1089/mdr.2014.0037
ISI #: 000349013000007
ISSN: 1076-6294
Category: A1
Type: Journal Contribution
Validation: ecoom, 2016
Appears in Collections: Research publications

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