Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Prevalent Characteristics of Fowl typhoid in Korea

국내 가금티푸스의 발생특징

  • Lee, Young-Ju (National Veterinary Research and Quarantine Service, MAF) ;
  • Kim, Ki-Seuk (College of Veterinary Medicine, Kyungpook National University) ;
  • Kwon, Yong-Kuk (National Veterinary Research and Quarantine Service, MAF) ;
  • Kang, Min-Su (National Veterinary Research and Quarantine Service, MAF) ;
  • Mo, In-Pil (College of Veterinary Medicine, Chungbuk Naional University) ;
  • Kim, Jae-Hong (National Veterinary Research and Quarantine Service, MAF) ;
  • Tak, Ryun-Bin (College of Veterinary Medicine, Kyungpook National University)
  • Published : 2003.06.01
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Abstract

The purpose of this study was to investigate the prevalent characteristics of fowl typhoid (FT) of chicken caused by Salmonella gallinarum in Korea. The occurrence of FT for 7 years from 1995 to 2001 in Korea was analyzed. The incidence of FT outbreaks was 10.3% of the total outbreaks of avian infectious disease cases diagnosed at National Veterinary Research and Quarantine Service (NVRQS) from 1995 to 2001. When the outbreaks of H cases was analyzed in relation to the chicken breeds, the incidence of FT in commercial layers, commercial broilers, egg-type breeders, and meat-type breeders was 71.4%, 25.0%, 0.2% and 3.4%, respectively. Especially, the incidence in layers fell 25.8~27.6% in 2000 and 2001 from 1999, on the other hand, the amount of FT vaccines assayed at NVRQS for use in layers only jumped to 57,881.5$\times$1,000 dose in 2001, an increase of 4 times from the previous year. In the analysis of the seasonal distribution, it was found the incidence was high in summer (38.5%) and fall (33.9%). Also, the age comparison analysis showed that the rate of FT outbreaks in layers was highest (45.6%) between 10 to 30 weeks. However, in broilers, the highest percentage (61.6%) was shown at the age of below 2 weeks.

가금티푸스는 Salmonella gallinarum의 감염에 의해 발생되는 조류의 세균성 전염병으로 간장과 비장의 종대, 황갈색의 설사 및 높은 폐사 등을 특징으로 한다. 본 연구에서는 국내 가금티푸스의 발생특징을 조사하기 위하여 1995년부터 2001년까지 7년동안 국립수의과학검역원에 병성감정의뢰된 닭가검물을 대상으로 발생역학을 분석하였다. 1995년부터 2001년까지 국립수의과학검역원에 병성감정 의뢰된 가금전염성 질병중 가금티푸스의 검색율은 10.3%이었으며, 품종별로는 실용산란계, 실용육계, 육용종계 및 산란종계에서 각각 71.4%, 25.0%, 0.2% 및 3.4%가 검색되어 산란계에서의 발생이 가장 많음을 알 수 있었다. 또한 계절별로는 여름 (35.8%)과 가을(33.9%)에 높은 발생율을 나타났으며, 일령별로는 실용산란계는 10-30주령 사이 (45.6%)에서, 실용육계는 2주 이하 (61.6%)에서 빈번하게 발생되었다.

Keywords

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