Korean Journal of Veterinary Research (대한수의학회지)

The Korean Society of Veterinary Science (대한수의학회)
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The dairy calf mortality : the causes of calf death during ten years at a large dairy farm in Korea

대규모 젖소 목장의 10년간 송아지 폐사 원인 분석

  • 허태영 (농촌진흥청 국립축산과학원 축산자원개발부) ;
  • 정영훈 (농촌진흥청 국립축산과학원 축산자원개발부) ;
  • 최창용 (농촌진흥청 국립축산과학원 축산자원개발부) ;
  • 조용일 (농촌진흥청 국립축산과학원 축산자원개발부) ;
  • 강석진 (농촌진흥청 국립축산과학원 축산자원개발부) ;
  • 이현준 (농촌진흥청 국립축산과학원 축산자원개발부) ;
  • 기광석 (농촌진흥청 국립축산과학원 축산자원개발부) ;
  • 백광수 (농촌진흥청 국립축산과학원 축산자원개발부) ;
  • 서국현 (전남대학교 수의과대학 내과학교실)
  • Received : 2013.03.11
  • Accepted : 2013.05.15
  • Published : 2013.06.30
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Abstract

The objective of this study was to investigate the calf death and analyse the causes of the mortality by based on medical records and autopsy findings during 10 years in a large dairy farm. Total of 1,361 calf born and 146 calf dead during the invested period. Mortality rate was 10.7% and showed the big difference by year-specific mortality from 2.8% (4 calves) to 19.2% (28 calves). The highest rate of mortality was 1 week age (18.5%, 27 calves) and followed by 2 week age (11.6%, 17 calves) and mortality of more old calf tended to be reduced. The death less than 4 weeks and 8 weeks of age of the entire mortality accounted for 41.1% (60/146 calves) and 70.0% (102/146 calves), respectively. Causes of calf death were digestive diseases (53.4%), respiratory diseases (17.1%), musculoskeletal disease (8.2%), and systemic disease (8.2%) in order. Specific causes of calf death was highest in enteritis (43.2%), followed by pneumonia (14.4%), sepsis (8.2%) and fractures (3.4%). Seasonally, most of calf death happened in winter (48.6%) and then fall (21.2%). This results showed that enteritis and pneumonia are the main reason of calf death but other reasons were involved in calf death on the based on autopsy finding. On going research relating factors of calf mortality is needed.

Keywords

References

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