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Epizootiological characteristics of viable bacteria and fungi in indoor air from porcine, chicken, or bovine husbandry confinement buildings.

Authors
  • Roque, Katharine1
  • Lim, Gyeong-Dong1
  • Jo, Ji-Hoon1
  • Shin, Kyung-Min1
  • Song, Eun-Seob1
  • Gautam, Ravi1
  • Kim, Chang-Yul1
  • Lee, Kyungsuk2
  • Shin, Seungwon3
  • Yoo, Han-Sang3
  • Heo, Yong1
  • Kim, Hyoung-Ah4
  • 1 Department of Occupational Health, College of Medical and Public Health Sciences, Catholic University of Daegu, Gyeongsan 38430, Korea.
  • 2 National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Korea.
  • 3 Department of Infectious Diseases and BK21 PLUS, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea.
  • 4 Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.
Type
Published Article
Journal
Journal of veterinary science
Publication Date
Dec 30, 2016
Volume
17
Issue
4
Pages
531–538
Identifiers
DOI: 10.4142/jvs.2016.17.4.531
PMID: 27456779
Source
Medline
Keywords
License
Unknown

Abstract

Microorganisms found in bioaerosols from animal confinement buildings not only foster the risk of spreading diseases among livestock buildings, but also pose health hazards to farm workers and nearby residents. This study identified the various microorganisms present in the air of swine, chicken, and cattle farms with different kinds of ventilation conditions in Korea. Microbial air samples were collected onto Petri dishes with bacterial or fungal growth media using a cascade impactor. Endotoxin levels in total dust were determined by the limulus amebocyte lysate kinetic QCL method. Prevalent Gram-positive bacteria were Staphylococcus (S.) lentus, S. chromogenes, Bacillus (B.) cereus, B. licheniformis, and Enterococcus faecalis, while the dominant fungi and Gram-negative bacteria were Candida albicans and Sphingomonas paucimobilis, respectively. Considering no significant relationship between the indoor dust endotoxin levels and the isolation of Gram-negative bacteria from the indoor air, monitoring the indoor airborne endotoxin level was found to be also critical for risk assessment on health for animals or workers. The present study confirms the importance of microbiological monitoring and control on animal husbandry indoor air to ensure animal and worker welfare.

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