- 2001年第18卷第10期文章目次
>法规园地
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2001, 18(10):8-8.
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>防疫管理
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2001, 18(10):9-9.
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2001, 18(10):10-13.
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2001, 18(10):13-14.
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2001, 18(10):19-19.
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2001, 18(10):23-23.
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>试验研究
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张训海 朱鸿飞 陈溥言 韩北芳 王璇 赵家龙 朱志海 孙素强
2001, 18(10):24-26.
摘要:A new viral disease of duck was reported. the strain virus was isolated from infected duck's livers, spleens and pancreas in Fengyang Anhui Province using chicken embryos. The virus could agglutinate the chicken erythrocytes. The hemaagglutination of virus could be inhibited by the convalescent antiserum, the Newcastle disease virus(NDV) F48E9 strain antiserum, the antiserum of goose paramyxovirus type-I isolated by our laboratory respectivcly. But it could' t be inhibited by avian influenza virus(AIV) positive anti- serum. The HA titer ranged between 2~8 and 2~9. Artificial infection could cause up to 100% morbidity and 50% - 100% mortality in 10-day--old ducks, with almost the same clinical symptoms and pathological changes. The 30 - day - old chickens can also be infected with 100% morbidity and 100% mortality. The inactivated vaccine made from the isolated virus and the egg yolk antibodies from its hyperimmunized layers could give very good protection against the natural infection of ducks. The biological characteristics of the virus was determined by measuring the mean death time of chicken embryos(MDT), the intracerebral pathogenicity index in day - old chicks (ICPI) and the intravenous pathogenicity index in 6-week - old chickens(IVPI). The MDT.ICPI and IVPI were 48.9h. 1.8O and 2.45 respectively. The results indicated that the isolate was of high virulence like velogenic Newcastle disease virus(NDV) and named duck paramyxovirus WF00D strain.
>防检技术
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2001, 18(10):30-30.
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2001, 18(10):31-32.
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2001, 18(10):33-33.
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>专论综述
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2001, 18(10):41-44.
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