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鸡传染性法氏囊病活疫苗与鸡痘活疫苗联合免疫效果研究

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摘要 鸡传染性法氏囊病(IBD)活疫苗与鸡痘活疫苗通过颈部皮下注射途径,同时接种1日龄出雏鸡,检测2种活疫苗联合免疫的安全性和免疫效力。将2种活疫苗同时免疫SPF雏鸡,免疫后21天用传染性法氏囊病病毒(IBDV)强毒和鸡痘强毒进行攻毒,观察试验组与对照组的攻毒保护情况。结果表明:安全性试验结果显示,免疫后14天内观察所有鸡的精神、食欲和生长发育均正常;剖检所有试验鸡脏器均未见异常,说明2种活疫苗联合免疫SPF雏鸡后是安全的。效力检验结果显示:免疫后21天,分别用鸡痘强毒和法氏囊强毒进行免疫鸡和对照鸡攻毒,鸡痘部分:攻毒后,对照鸡均发痘,免疫鸡无不良反应,未引起全身痘,获得10/10保护;法氏囊部分:攻毒对照鸡法氏囊病变1CV10,免疫鸡法氏囊无病变。研究表明2种活疫苗联合免疫雏鸡后,可同时抵御IBDV强毒与鸡痘强毒株的攻击,保护效果良好。结论:IBD与鸡痘活疫苗联合免疫,对雏鸡安全,免疫保护效果好,避免多次免疫对雏鸡带来的应激反应,提高养殖经济效益。
出处 《养禽与禽病防治》 2019年第9期10-14,共5页 Poultry Husbandry and Disease Control
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