经统计分析，早期囊胚的存活率极显著高于桑椹胚（P＜0.01）。
The survival rats of early blastocyst groups were significantly higher than the morula groups (P<0.01).
结论序列培养系统有利于鼠胚从早期胚胎向囊胚的进一步发育和分化。
Conclusions The sequential culture system was beneficial for mouse embryo development and differentiation from early embryo stage to blastocyst stage.
在相同剂量和剂量率下，处于4 ~ 8细胞期的胚胎存活率比多细胞期和囊胚早期高，而畸形率低。
Embryos at 4 ~ 8 cell stage showed higher survival rate and lower abnormal embryo rate than embryos at multicellular stage or early gastrula stage when radiated at the same dose and dose rate.
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