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。
2
Test results, using two different assays, showed high antibody titer for H5N1 on consecutive serum samples taken on days 11 and 15 of his illness.
The D1 isolate of goose paramyxovirus caused 100% mortality of goose, duck and chicken embryos. Infected allantoic fluid could produce hightiter of hemagglutinin test.