Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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A Study on the Distribution of Antibiotic Resistant Bacteria in Domesticated Animal Feces

가축 분변중의 항생제 내성균주의 분포에 관한 연구

  • Kwon, Hyuk-Ku (Institute of Fusion Technology, Hoseo University) ;
  • Lee, Jang-Hoon (Department of Environmental Engineering, Hoseo University) ;
  • Kim, Jong-Geu (Department of Health Administration, Gachon University of Medicine & Science)
  • 권혁구 (호서대학교 융합기술연구소) ;
  • 이장훈 (호서대학교 환경공학과) ;
  • 김종규 (가천의과학대학교 보건행정학과)
  • Received : 2012.01.26
  • Accepted : 2012.03.21
  • Published : 2012.04.30
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Abstract

Objectives: To estimate the multi-antibiotic resistant bacterial contaminant load discharged from livestock farms, we randomly selected livestock farms specializing in cattle, swine, and fowl and collected bacterial strains from domesticated animal feces and compost samples. Problems with resistance to antibiotics are becoming worldwide issues, and as the consumption of antibiotics appears to be excessive in Korea as well, the emergence of antibiotic resistant bacteria shows the possibility to cause potentially serious social problems. Methods: To monitor multi-antibiotic resistant bacterial constituents, aerobic bacteria and Escherichia coli were isolated from domesticated animal feces and compost. Antibiotic resistance testing was performed by the disc diffusion method using 13 different antibiotics. Results: Examining the degree of sensitivity to antibiotics of the aerobic bacteria originating from domesticated animal feces, fowl feces showed the highest distribution rate (35.5%), followed by swine feces compost (23.1%), swine feces (18.2%), cattle feces (14.9%), and cattle feces compost (8.2%). Antibiotic resistance tests of aerobic bacteria and E. coli originating from domestic animals feces resulted in 83.6% and 73.5% of each strain showing resistance to more than one antibiotic, respectively. Conclusions: These results suggest that increasing multi-antibiotic resistant bacteria in the environment has a close relation to the reckless use of antibiotics in livestock.

Keywords

References

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