... 胚构造形状；胚芽生殖 blastogenetic; blastogenic 胚化 embryonalisation 胚嫁接 embryo grafting ...
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对鸭肝炎鸡胚化弱毒株MY接种4日龄雏鸭后的组织变化进行了动态观察比较研究。
The dynamic changes of tissue structure in 4 days old ducklings which were infected with chicken embryo attenuated strain MY of duck hepatitis virus were observed.
通过对2，4-D浓度及生长发育时间的控制获得了高度同步化的各发育阶段体胚材料。
Synchronized embryogenic cultures at different developmental stages were obtained by controlling 2,4-D concentration and developmental time.
将646枚2 ~ 4细胞期重构胚移植到38只同期化及非同期化的受体后无幼仔出生。
When 646 reconstructive embryos in 2-4 cells were transferred into 38 recipients under synchronous and asynchronous, no child was born.
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