Korean Journal of Veterinary Research (대한수의학회지)

The Korean Society of Veterinary Science (대한수의학회)
권호 표지

Dehydrating and bacterial elimination effects of fecal dehydrating system for reducing bovine mastitis derived from environmental contamination

환경유래 젖소유방염 저감을 위한 우분뇨 탈수 시스템의 탈수 및 유방염 원인체 제균 효과 규명

  • Kim, Dong Hyeok (College of Veterinary Medicine, Gyeongsang National University) ;
  • Lim, Jung Ju (College of Veterinary Medicine, Gyeongsang National University) ;
  • Lee, Jin Ju (College of Veterinary Medicine, Gyeongsang National University) ;
  • Kim, Dae Geun (College of Veterinary Medicine, Gyeongsang National University) ;
  • Chang, Hong Hee (College of Agriculture & Life Science,Institute of Agriculture and Life Science, Gyeongsang National University) ;
  • Lee, Seung Joo (Department of Bio-Industrial and Machinery, Chungnam National University) ;
  • Lee, Yun Beom (Institute of Agriculture and Life Science, Gyeongsang National University) ;
  • Chang, Dong Il (Institute of Agriculture and Life Science, Gyeongsang National University) ;
  • Lee, Hu Jang (College of Veterinary Medicine, Gyeongsang National University) ;
  • Min, Won-Gi (College of Veterinary Medicine, Gyeongsang National University) ;
  • Kim, Sang Hun (Department of Bio-Industrial and Machinery) ;
  • Oh, Kwon Young (College of Veterinary Medicine, Department of Agricultural Engineering, National Academy of Agricultural Science) ;
  • Kim, Suk (College of Veterinary Medicine, Gyeongsang National University, Department of Agricultural Engineering, National Academy of Agricultural Science)
  • 김동혁 (경상대학교 수의과대학) ;
  • 임정주 (경상대학교 수의과대학) ;
  • 이진주 (경상대학교 수의과대학) ;
  • 김대근 (경상대학교 수의과대학) ;
  • 장홍희 (경상대학교 농업생명과학대학,경상대학교 농업생명과학연구원) ;
  • 이승주 (충남대학교 농과대학) ;
  • 이윤범 (경상대학교 농업생명과학연구원) ;
  • 장동일 (경상대학교 농업생명과학연구원) ;
  • 이후장 (경상대학교 수의과대학) ;
  • 민원기 (경상대학교 수의과대학) ;
  • 김상훈 (충남대학교 농과대학) ;
  • 오권영 (국립농업과학원 농업공학부) ;
  • 김석 (경상대학교 수의과대학)
  • Accepted : 2009.09.18
  • Published : 2009.09.30
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Abstract

Bovine mastitis is an important disease causing serious economic loss in dairy production and food poison in public health. Escherichia coli and Staphylococcus aureus are the major causative agents of bovine mastitis. These bacteria were found in milk and environmental condition such as feces, water, soil and so on. Bovine mastitis causative micro-organisms can survive in 1-2 weeks in feces and bed complexes. Low level of percentage of water content (PWC) of feces and bed complexes can reduce the spreading of bovine mastitis incidence from environmental contamination. In this study, we developed the fecal dehydrating system and determined the elimination rates of bovine mastitis causative agent from feces and bed complexes. To develop the fecal dehydrating system, the screw pressurized dehydrating system was used and the maximum rate of dehydrating was reached to 52% PWC using 90% PWC (wet base) of fecal and bed complexes. The elimination rates of the dehydrating system for E. coli and S. aureus were reached at 41.19 $\pm$ 7.84% to 62.55 $\pm$ 8.71% in various percentages of PWC of feces and bed complexes (80, 85 and 90%). These results suggested that the application of fecal dehydrating system would reduce the exposure of dairy cattle to bovine mastitis causing agents contaminated feces and bed complexes, and can be used for environmental bovine mastitis control avoiding misuse or abuse of chemical disinfectants and antibiotics in dairy farm.

Keywords

Acknowledgement

Grant : 유우 유방염 예방을 위한 우분뇨/톱밥 살균 탈수 시스템 개발

Supported by : 농림수산식품부

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