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猪圆环病毒2型灭活疫苗安全性及免疫效力的评价

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摘要 为了对制备的猪圆环病毒2型(porcine circovirus type 2,PCV2)灭活疫苗进行安全性及免疫效力的评价,本试验将3批次猪圆环病毒2型灭活疫苗以2倍剂量接种PCV2阴性仔猪后,进行了安全性分析抗体检测和攻毒试验。结果显示:3批次疫苗以2倍剂量接种仔猪后,仔猪均无异常临床反应,可达到1∶1600以上,而攻毒对照组及空白对照组仔猪的抗体水平均在1∶400以下;攻毒后免疫组可以达到100%保护,攻毒对照组出现100%发病。结果表明,所制备的猪圆环病毒2型灭活疫苗对仔猪不仅安全性好,而且可以为仔猪提供有效的保护,为疫苗推广奠定了重要基础。
出处 《国外畜牧学(猪与禽)》 2022年第2期30-34,共5页 Animal Science Abroad-Pigs and Poultry
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