한국가금학회지 (Korean Journal of Poultry Science)
- 제11권1호
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- Pages.49-64
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- 1984
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- 1225-6625(pISSN)
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- 2287-5387(eISSN)
뉴캣슬병백신 접종계군에 있어서 면역상태와 ND 발생시 닭의 생산성에 미치는 영향
A Survey on the Immune Status and Productivity of Vaccinated Poultry Flocks against Newcastle Disease in the Epizootic Area
초록
1978년부터 1919년까지의 ND 대류행기간중계 군관리 기록이 확실하고 ND발생전후 ND 항체주사가 가능했던 5개 농장을 대상으로 ND에 대한 역학사항, 면역정도 및 피해상황을 조사한 바 다음과 같은 결론을 얻을 수 있었다. 1. 생독 또는 사독 ND백신을 4회이상 접종한 20주령 이상된 계군에서는 비록 ND HI 역가가 3 log
During the 1978-79 Newcastle disease (ND) epizootic period, a detailed survey was conducted on the five representative farms which had been following one of the recommended vaccination programs. When the disease broke out during laying period, clinical symptoms were mild to moderate respiratory distress and greenish diarrhea. Affected flocks experienced weekly mortality from less than 1% to 17%. Egg production returned to normal 18 to 36 days after the initial signs appeared although some flocks never returned to normal. On postmortem examination,, most affected chickens showed severe hemorrhagic lesions in the duodenum, hematoma on ova, and heavy fat accmulation on various visceral organs. Most of the NO affected flocks had geometric mean hemagglutination inhibition antibody(HIA) titers of 7 log
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