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传染性法氏囊病重组亚单位疫苗免疫效力及安全性试验

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摘要 以传染性法氏囊病(IBD)重组亚单位疫苗3批次实验室制品分4个剂量(即0.500 ml、0.250 ml、0.125 ml、0.075 ml)分别免疫12组14日龄SPF鸡。接种后观察各组鸡只的食欲和精神状态。免疫后第21 d,以琼脂免疫扩散试验检测IBDV血清抗体;除N组(不免疫不攻毒)外其他组均以标准强毒株BC6/85进行攻毒。攻毒后第4 d剖检,观察法氏囊及注射部位的眼观病变,检测法氏囊中IBDV抗原。结果,9个组(A、B、C、E、F、G、I、J、K)的免疫保护率与对照组(N)的免疫保护率之间差异均显著(χ2>χ20.004 2),但3个组(D、H、L)的免疫保护率与对照组的免疫保护率之间差异均不显著(χ2<χ20.004 2)。将12个试验组(A组至L组)的血清抗体水平进行方差分析,差异显著(p<0.05);以q检验进行多重比较,9个组(A、B、C、E、F、G、I、J、K)之间及3个组(D、H、L)之间差异不显著(p>0.05),而前9组与后3组之间差异显著(p<0.05)。上述结果表明,该实验制品可诱导鸡只产生显著的血清抗体水平及抗强毒攻击的免疫力,并具有可接受的安全性。
出处 《浙江农业科学》 2007年第6期721-723,共3页 Journal of Zhejiang Agricultural Sciences
基金 湖北省科技厅重点科技发展项目传染性法氏囊病基因工程疫苗开发研究(992P0706)部分研究内容
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参考文献15

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