Korean Journal of Veterinary Service (한국동물위생학회지)

The Korean Society of Veterinary Service (한국동물위생학회)
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Detection of diarrheagenic pathogens from feces and incidence of diarrhea in Korean calves

국내 송아지 분변 내 설사병 병원체 검출과 설사 발병율 조사

  • Kim, Suhee (College of Veterinary Medicine, Chonbuk National University) ;
  • Kang, Jin-Hee (College of Veterinary Medicine, Chonbuk National University) ;
  • Lee, Chang-Joon (College of Veterinary Medicine, Chonbuk National University) ;
  • Lee, Young-Sung (College of Veterinary Medicine, Chonbuk National University) ;
  • Chae, Jeong-Byoung (College of Veterinary Medicine, Seoul National University) ;
  • Kang, Sung-Woo (College of Veterinary Medicine, Chonnam National University) ;
  • Jeong, Suck-Han (College of Veterinary Medicine, Chonnam National University) ;
  • Yu, Do-Hyeon (College of Veterinary Medicine, Chonnam National University) ;
  • Jo, Ara (National Institute of Animal Science Rural Development Administration) ;
  • Yoo, Jae-Gyu (National Institute of Animal Science Rural Development Administration) ;
  • Choi, Kyoung-Seong (College of Ecology and Environmental Science, Kyungpook National University) ;
  • Kim, Hyeon-Cheol (College of Veterinary Medicine, Kangwon National University) ;
  • Park, Bae-Keun (College of Veterinary Medicine, Chungnam National University) ;
  • Chae, Joon-Seok (College of Veterinary Medicine, Seoul National University) ;
  • Park, Jinho (College of Veterinary Medicine, Chonbuk National University)
  • Received : 2016.09.19
  • Accepted : 2016.09.21
  • Published : 2016.09.30
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Abstract

Diarrhea is reported as one of the most common diseases in calves. It is thought to be a major cause of productivity and economic loss to cattle producers. The aim of this study is to provide a better understanding of well-known diarrheagenic pathogens and incidence of diarrhea in Korean calves. In this study, the relationship of calf diarrhea and pathogens were investigated from calves under 60 days of age in five areas of Korea from April to July, 2016. Of examined fecal samples, 38.3% was positive for any pathogens, and Giardia was the most common pathogen (25.5%). The incidence of diarrhea was 31% from pathogen-negative fecal samples whereas 61.1% from pathogen-positive fecal samples, suggesting high correlation between pathogenic factor and diarrhea. In addition, 80% of E. coli (K99) positive calves showed diarrhea, suggesting E. coli (K99) could be highly pathogenic. The incidence of diarrhea and infection rate increased with age. Rotavirus was revealed as a major pathogen in calves under 20 days of age, and the infection rate of Giardia increased rapidly in calves 20 to 39 days of age. The information on interconnections between clinical diarrhea and pathogens would contribute to developing strategies for treatment of calf diarrhea.

Keywords

References

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