Korean Journal of Veterinary Service (한국동물위생학회지)

The Korean Society of Veterinary Service (한국동물위생학회)
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Protective effects of IgY against diarrhea in suckling piglets -II. Clinical sign, histopathological lesion and immunohistochemical finding-

IgY 투여에 따른 포유자돈의 설사에 미치는 예방효과 -II. 임상증상, 병리조직학적 검사 및 면역조직학적 검사-

  • Jin, Wen (Department of Veterinary Medicine and Institution of Veterinary Science, Kangwon National University) ;
  • Yoon, Byung-Il (Department of Veterinary Medicine and Institution of Veterinary Science, Kangwon National University) ;
  • Han, Jeong-Hee (Department of Veterinary Medicine and Institution of Veterinary Science, Kangwon National University)
  • 김문 (강원대학교 수의학(부)대학) ;
  • 윤병일 (강원대학교 수의학(부)대학) ;
  • 한정희 (강원대학교 수의학(부)대학)
  • Published : 2008.03.30
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Abstract

The purpose of this study was to investigate the protective effects against porcine epidemic diarrhea virus (PEDV) and transmissible gastroenteritis virus (TGEV) in suckling piglets by oral administration of the IgY. The piglets were divided into two groups: test and control group. The former (n=10) were administered orally with IgY for three days from one-day-old and experimentally challenged with PEDV and TGEV at four-day-old. The latter (n=10) were administered with saline solution and challenged with same methods. Several tests were studied and summarized as follows; In clinical signs, the piglets of the control group showed the typical signs such as severe watery diarrhea, depression and anorexia but those of the test group recovered progressively. Control group showed 20% in mortality, but there were no death in the other. The gross lesions in the test were milder than those in the control, and there were typical findings as like congestion and distension of lumen in the control group. In histopathological study, the piglets of the control group had shortened and fused intestinal villi and a marked loss of epithelium, whereas the others showed milder changes. It could be concluded that oral administration of IgY, specific yolk-antibody against PEDV and TGEV is effective to prevent PEDV and TGEV infection in suckling piglets.

Keywords

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