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Distribution of Lawsonia intracellularis in livestock transport car of slaughterhouse, Korea

도축장 출하차량에서 Lawsonia intracellularis 분포율 조사

  • Lee, Su-Ji (North-Branch, Jeonbuk Veterinary Service Laboratory) ;
  • Lee, Hee-Seon (North-Branch, Jeonbuk Veterinary Service Laboratory) ;
  • Seo, Ji-Soo (North-Branch, Jeonbuk Veterinary Service Laboratory) ;
  • Kim, Tae-Gyeom (North-Branch, Jeonbuk Veterinary Service Laboratory) ;
  • Jeong, Jae-Kyo (North-Branch, Jeonbuk Veterinary Service Laboratory)
  • 이수지 (전라북도동물위생시험소 남부지소) ;
  • 이희선 (전라북도동물위생시험소 남부지소) ;
  • 서지수 (전라북도동물위생시험소 남부지소) ;
  • 김태겸 (전라북도동물위생시험소 남부지소) ;
  • 정재교 (전라북도동물위생시험소 남부지소)
  • Received : 2018.05.27
  • Accepted : 2018.12.01
  • Published : 2018.12.30

Abstract

Lawsonia intracellularis is the pathogenic agent of porcine proliferative enteritis (PPE). The bacterial pathogen infects the intestinal crypt cells which causes hyperplasia of the infected cells and leads to the process of intestinal pathogenesis. PPE includes some clinical maninfestations, including acute hemorrhagic diarrhea with sudden death in growing pigs and porcine intestinal adenomatosis, to a chronic diarrhea with reduced productivity of the infected pigs. The purpose of the present studies were carried out to determine L. intracellularis in livestock transport car of slaughterhouse. Distribution of L. intracellularis in livestock transport car were conducted using real-time polymerase chain reaction (real-time PCR) testing method, total 300 samples. Of 300 samples, 119 (39.7%) were detected as positive to L. intracellularis in livestock transport car. In seasonal analysis, 42 (28.0%) out of 150 samples in spring and summer season. 77 (51.3%) out of 150 sample in autumn and winter season. In regional analysis, 53 (88.3%) out of 60 cars and the detection ratio showed that regional variation in livestock transport car.

Keywords

Table 1. Isolates of L. intracellularis from livestock transport car

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Table 2. Monthly detection rates of L. intracellularis using real-time PCR

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Table 3. Seasonal detection rates of L. intracellularis by real-time PCR

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Table 4. Regional differences in the detection rate of L. intracellularis

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