UL56基因下游3513bp对鸭肠炎病毒生物特性的影响

毛娅卿,张兵,王团结,侯力丹,黄小洁,刘丹,赵俊杰,李启红,王乐元,李俊平,杨承槐

The Effects of Downstream 3513bp of UL56 on Characterization of Duck Enteritis Virus

YaQing MAO,Bing ZHANG,TuanJie WANG,LiDan HOU,XiaoJie HUANG,Dan LIU,JunJie ZHAO,QiHong LI,LeYuan WANG,JunPing LI,ChengHuai YANG

表2 免疫后的攻毒保护效力

Table 2 Protective efficacy against lethal challenge postinoculation

组别 Groups 毒株 Strains 剂量 Doses DEV攻毒后每天死亡鸭数 Numbers of dead ducks per day after DEV challenge 累计死亡 Total death 1 2 3 4 5 6 7 8 9 10 1 DEVΔ3513 105.0 TCID50 0 0 0 0 0 0 0 0 0 0 0/5 2 DEVΔ3513(R) 105.0TCID50 0 0 0 1 3 0 1 / / / 5/5 3 亲本毒 Parent virus 105.0TCID50 0 0 0 2 2 1 / / / / 5/5 4 对照组 Control / 0 0 0 0 0 0 0 0 0 0 0/5