›› 2009, Vol. 36 ›› Issue (3): 157-159.

• 疾病防治 • 上一篇    下一篇

新城疫复合物疫苗对1日龄雏鸡免疫效果的研究

章振华1,姜北宇1,李永清1,李林1,毛娅卿2,张建伟1,景小冬1,郑小兰1   

  1. (1.北京市农林科学院畜牧兽医研究所, 北京 100097; 2.中国兽医药品监察所, 北京 100081)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-03-20 发布日期:2009-03-20
  • 通讯作者: 姜北宇

Studies on the Immunity Effect of Newcastle Disease Complex Vaccine in One-day Old Common Chick

ZHANG Zhen-hua1, JIANG Bei-yu1, LI Yong-qing1, LI Lin1, MAO Ya-qing2, ZHANG Jian-wei1,JING Xiao-dong1, ZHENG Xiao-lan1

  

  1. (1. Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; 2. China Institute of Veterinary Drug Control, Beijing 100081, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-03-20 Published:2009-03-20
  • Contact: JIANG Bei-yu

摘要: 用新城疫病毒La Sota株作为复合物疫苗抗原,与新城疫特异性中和抗体混匀配制成4种不同比例的复合物疫苗,用1日龄普通雏鸡进行免疫效果对比试验。试验1~4组分别为免疫复合物疫苗1~4,试验5组免疫常规新城疫活苗,试验6组为空白对照组。免疫后3周采血测定HI抗体效价,同时用新城疫强毒北京株F48E9攻击。试验结果显示,试验1~6组HI抗体效价分别为3.2log2、3.1log2、3.3log2、3.2log2、3.1log2、2.9log2;攻毒后,试验1~6组鸡的死亡率分别为15%、20%、0%、35%、30%、50%。因此,新城疫病毒La Sota株与新城疫特异性抗体制备成复合物疫苗,能保持疫苗中抗原的免疫原性,并可减轻疫苗的毒副作用,提高疫苗的安全性,其免疫效果比常规活苗好。

关键词: 新城疫; La Sota毒株; 抗原抗体复合物疫苗; 免疫效果

Abstract: Four kind of complex vaccines were composed of NDV La Sota strain and the specific antibody against NDV in different ratios, the immunity effect test of vaccines were carried out with one-day old common chicks. Chicks in group 1 to 4 were vaccinated with complex vaccines 1 to 4 respectively, chicks in group 5 were vaccinated with La Sota live vaccine, and chicks in group 6 were not vaccinated with any vaccine. Blood samples were taken post-immunization three weeks, and levels of anti-NDV antibody were tested by HI test. All chickens in group 1 to 6 were challenged with high virulent NDV Beijing strain F48E9 when twenty-one days old.The test results showed that the mean HI antibody titers of group 1 to 6 post-immunization three weeks were 3.2log2,3.1log2,3.3log2,3.2log2,3.1log2、2.9log2, respectively. After challenge,mortality in group 1 to 6 were 15%,20%,0%,35%,30%,50%, respectively. The results suggested that the complex vaccine made with NDV La Sota and anti-NDV antibody could remain good immunogenicity, reduce vaccine virulence and increase vaccine safety, and its immunity effect was better than that of common live vaccine.

Key words: newcastle disease; La Sota strain; antigen-antibody complex vaccine; immunity effect

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