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Presence of antimicrobial resistance and antimicrobial use in sows are risk Factors for antimicrobial resistance in their offspring

(2015) MICROBIAL DRUG RESISTANCE. 21(1). p.50-58
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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.
Keywords
USAGE, COLIFORMS, PATTERNS, FATTENING PIGS, SWINE FARMS, ANTIBIOTIC-RESISTANCE, FECAL ESCHERICHIA-COLI, FLORA, SPREAD, CALVES

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Chicago
Callens, Benedicte, Christel Faes, Dominiek Maes, Boudewijn Catry, Filip Boyen, Delphine Francoys, Ellen de Jong, Freddy Haesebrouck, and Jeroen Dewulf. 2015. “Presence of Antimicrobial Resistance and Antimicrobial Use in Sows Are Risk Factors for Antimicrobial Resistance in Their Offspring.” Microbial Drug Resistance 21 (1): 50–58.
APA
Callens, B., Faes, C., Maes, D., Catry, B., Boyen, F., Francoys, D., de Jong, E., et al. (2015). Presence of antimicrobial resistance and antimicrobial use in sows are risk Factors for antimicrobial resistance in their offspring. MICROBIAL DRUG RESISTANCE, 21(1), 50–58.
Vancouver
1.
Callens B, Faes C, Maes D, Catry B, Boyen F, Francoys D, et al. Presence of antimicrobial resistance and antimicrobial use in sows are risk Factors for antimicrobial resistance in their offspring. MICROBIAL DRUG RESISTANCE. 2015;21(1):50–8.
MLA
Callens, Benedicte et al. “Presence of Antimicrobial Resistance and Antimicrobial Use in Sows Are Risk Factors for Antimicrobial Resistance in Their Offspring.” MICROBIAL DRUG RESISTANCE 21.1 (2015): 50–58. Print.
@article{5904163,
  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.},
  author       = {Callens, Benedicte and Faes, Christel and Maes, Dominiek and Catry, Boudewijn and Boyen, Filip and Francoys, Delphine and de Jong, Ellen and Haesebrouck, Freddy and Dewulf, Jeroen},
  issn         = {1076-6294},
  journal      = {MICROBIAL DRUG RESISTANCE},
  keywords     = {USAGE,COLIFORMS,PATTERNS,FATTENING PIGS,SWINE FARMS,ANTIBIOTIC-RESISTANCE,FECAL ESCHERICHIA-COLI,FLORA,SPREAD,CALVES},
  language     = {eng},
  number       = {1},
  pages        = {50--58},
  title        = {Presence of antimicrobial resistance and antimicrobial use in sows are risk Factors for antimicrobial resistance in their offspring},
  url          = {http://dx.doi.org/10.1089/mdr.2014.0037},
  volume       = {21},
  year         = {2015},
}

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