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2023 Vol.53, Issue 2 Preview Page

Original Article

Effects of Liquid Administering Antimicrobial Agents on Reducing Antimicrobial Resistance in Weaned Piglets in Korea
Seong-Won Lee12
,
Kyung-Hyo Do2
,
Kwangwon Seo2*
1Boehringer Ingelheim Animal Health Korea Ltd., Yonsei Severance Bldg. 16F, 10 Tongil-ro, Jung-gu, Seoul 04527, Republic of Korea
2College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea
*vetskw16@cbnu.ac.kr
31 December 2023. pp. 161-169
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Abstract

Antimicrobial agents are typically delivered through two primary oral routes: either liquid administering into drinking water or powder administering into feed. The aim of study was to analyze the effects of liquid administering antimicrobial agents on antimicrobial resistance. We selected 5 pig farms that have both a weaner house with a proportional liquid dispenser, and a weaner house that does not have proportional liquid dispenser, and confirmed that weaned piglets in weaner house with proportional liquid dispenser were treated antimicrobial agents via drinking water, and weaned piglets in weaner house without proportional liquid dispenser were treated antimicrobial agents with powder administering into feed. A total of 80 Escherichia coli (E. coli) and 79 Enterococcus species (spp.) isolates were tested in this study. All E. coli and Enterococcus spp. isolates were tested for antimicrobial susceptibility using the disc diffusion test. We found that isolates from house with proportional liquid feeding showed a significantly lower antimicrobial resistance rates to chloramphenicol (77.8%) in E. coli compared to that from house without proportional liquid dispenser (90.9%), and tetracycline (80.0%), florfenicol (77.5%), and kanamycin (87.5%) in Enterococcus spp. compared to those from house without proportional liquid dispenser (89.7%, 92.3%, and 97.4%, respectively). The findings suggest that utilizing drinking water as a means of administering antimicrobial agents is a favorable approach for disease management in pig production.

Keywords
Swine
Antimicrobial resistance
Liquid administering antimicrobial agents
Escherichia coli
Enterococcus spp.
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Information
  • Publisher :The Korean Society for Microbiology and The Korean Society of Virology
  • Publisher(Ko) :대한미생물학회‧대한바이러스학회
  • Journal Title :JOURNAL OF BACTERIOLOGY AND VIROLOGY
  • Volume : 53
  • No :2
  • Pages :161-169
  • Received Date : 2023-12-03
  • Revised Date : 2023-12-14
  • Accepted Date : 2023-12-18
  • DOI :https://doi.org/10.4167/jbv.2023.53.2.161
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