The viral titer was determined with the NIH3T3.
通过NIH3T3细胞测定病毒滴度。
For the local laboratory, it is better to use guinea pig erythrocytes to detect the viral HA titer.
基层实验室采用豚鼠血球更适合于病毒的HA滴度测定。
This experiment discussed the effect of yolk antibody on the passive immunity defense through preparing high-titer yolk antibody against the high-efficient rabbit's viral hemorrhage.
本试验通过制备高效价兔病毒性出血症高免卵黄抗体，探讨高免卵黄抗体对兔的被动免疫保护效果。
Moreover, the HA titer of the viral isolate was not increased dramatically at second passage in chicken embryo.
阳性分离物再次接种鸡胚无法显著提高其HA效价。
Moreover, the HA titer of the viral isolate was not increased dramatically at second passage in chicken embryo.
阳性分离物再次接种鸡胚无法显著提高其HA效价。
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