Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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An Outbreak of Blindness Caused by Hypovitaminosis A in Korean Native Cattle

한우에서 vitamin A 결핍증에 기인한 맹안의 집단발생

  • Cho, Kwang-Hyun (Gyeongsangbukdo Livestock Research Institute) ;
  • Kim, Yeong-Hwan (Gyeongbuk Veterinary Service Laboratory) ;
  • Kim, Kil-Soo (College of Veterinary Medicine, Kyungpook National University) ;
  • Kwak, Dong-Mi (College of Veterinary Medicine, Kyungpook National University) ;
  • Cho, Gil-Jae (College of Veterinary Medicine, Kyungpook National University) ;
  • Kim, Tae-Hwan (College of Veterinary Medicine, Kyungpook National University) ;
  • Kwon, Oh-Deog (College of Veterinary Medicine, Kyungpook National University)
  • 조광현 (경상북도 축산기술연구소) ;
  • 김영환 (경상북도 가축위생시험소) ;
  • 김길수 (경북대학교 수의과대학) ;
  • 곽동미 (경북대학교 수의과대학) ;
  • 조길재 (경북대학교 수의과대학) ;
  • 김태환 (경북대학교 수의과대학) ;
  • 권오덕 (경북대학교 수의과대학)
  • Published : 2007.09.30
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Abstract

This report described an outbreak of blindness caused by hypovitaminosis A in Hanwoo (Korean native cattle) in Gyeongsangbukdo province, Korea. The diagnosis was based on clinical findings, analysis of diet, and concentration of vitamin A and carotene in serum and/or feedstuff. Thirty eight of 48 cows were found to be affected. The causative diet contained higher levels of crude protein, net energy and crude fat and lower level of total fiber and crude fiber. Surprisingly, vitamin A was not detected in the causative diet. Treatment of vitamin A to Hanwoo that had blindness did not induce further progress of the symptom. Furthermore, there were no additional diseases detected. Based on the observations described above, this case was diagnosed as hypovitiminosis A.

Keywords

References

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