卵裂

It showed that the cumulus cells did play significant role in the stimulation of nuclear maturation of porcine oocytes and subsequent development.

表明卵丘细胞对猪卵母细胞的核成熟及卵母细胞体外受精后的卵裂和早期胚胎发育，都具有明显的促进作用。

The experiment results were as following:All cytoplast recipients derived from oocytes of rabbit, bovine and goat can support early development of cloned embryo, the fusion rate of reconstructed embryos of goat-bovine and goat-rabbit were 59.91% and 74.10%, their cleaved rate were 57.48% and 72.57%, blastocyst rate were 9.59% and18.06% respectively, and the fusion of reconstructed embryos of goat-rabbit and goat-goat were 60.01% and 74.10%, their cleaved rate were 56.68% and 72.57%, blastocyst rate were 11.76% and18.06% respectively.

试验获得了如下结果：1。以山羊耳成纤维细胞为供体，以牛、羊、兔卵母细胞做为胞质受体构建重构胚，并经体外培养，发现不同的胞质受体均能支持重构胚的早期发育，但受体胞质对重构卵的重构胚早期发育速度和卵裂率均有显著影响。

The cleavation rates and blastocyst development rates of cloned embryos were used to assess the efficiency of different operational procedure. Finally, the best combination of operational procedure, that the spindle-viewer system was used for oocytes enucleating, and donor cell was electrofused into ooplasm by electrical pulse (1.9 kV/cm, 10 ms, two) to reconstruct bovine cloned embryos.

以核移植胚胎的卵裂率、囊胚发育率作为检测指标，对不同的方法所获得的克隆胚胎的卵分裂率与囊胚发育率进行比较，最后筛选获得1个优化的牛体细胞核移植操作程序，即采用Spindle view系统对牛卵母细胞进行去核操作，将供核体细胞注射到卵周隙，然后通过电融合法将供体核引入去核卵细胞质(电融合参数为1.9 kV/cm，脉冲时程10 ms，方波2次间隔2 s)。

Rising of fertilization membrane during induced maturation indicates insemination is not necessary to form the fertilization membrane. The oocyte will not become fertilizable until GVBD has happened and can still be fertilized after the second polar body extrusion.

卵母细胞只有在生发泡破裂之后才具有受精能力，从生发泡破裂到第二极体排出前的整个减数分裂过程中，卵母细胞都可以受精，但是只有在第一极体排出前受精的卵母细胞才能发生卵裂。

The cleavage rate of ovocyte IVF of MⅡovocyte frozen withOPS method and activation method was higher remarkably than fluid spearmethod(P＜0.01), the cleavage rate of 2-cell after electrical activation was higher than IVF.

本试验推荐猪体外成熟培养体系为连续培养液48h的NCSU-23+10％FBS，细胞浓度为100个／400μl，发育培养体系为NCSU-23+BSA；用CRY-3细胞激活仪电激活时(电融槽宽度为1mm)为150v／20μs／2次+600μMγ-BLI；以活力为0.1左右的冷冻精液进行IVF时，精子浓度为10~7，共孵时间为6h，并在成熟处理时只部分去除卵丘细胞；MⅡ卵母细胞冷冻时，方法为移液枪头法+离心法，冷冻后激活的2-细胞卵裂率比IVF高。

Sowe selected the colchicine optimum parameters were 0.6μg/ml and 6 hour culturedduration.The second, there were no significantly differences between the four groupsin 2 hour groups; and there were significantly differences between 0.2μg/ml groups and other three groups in 4 hour groups; and there were no significantlydifferences between the four groups in 6 hour groups; and there were significantlydifferences between 0.4μg/ml groups and other three groups in 8 hour groups onthe metaphases (P＜0.05), in the experiment of the effect on the mouse 8-cellembryo stage single blastomere of colchicine with different concentrations andduration by x~2 statistical analysis.

根据实验的实际情况，适宜制备小鼠4-细胞期胚胎单卵裂球染色体标本的秋水仙素的处理浓度和时间是0.6μg／ml和6小时。2、在确定秋水仙素不同处理浓度和时间对小鼠8-细胞期胚胎单卵裂球中期分裂相数影响的实验中，经统计分析，阻断培养2小时组中四个浓度组差异均不显著；阻断培养4小时组中0.2μg／ml浓度组与其他三组差异显著；阻断培养6小时组中四个浓度组差异均不显著；阻断培养8小时组中0.4μg／ml浓度组与其他三组差异显著(P＜0.05)。

So we selected thevinblastine optimum parameters were 0.1μg/ml and 8 hour cultured duration.The fourth, there were significantly differences percent between 10 hourgroups and other three groups in 0.1μg/ml groups; and there were no significantlydifferences between 8 hour groups and 10 hour groups, but they had significantlydifferences among other two groups in 0.3μg/ml groups; and there weresignificantly differences between 10 hour groups and other three hour groups in0.5μg/ml groups; and there were significantly differences between 10 hour groupsand other three groups in 0.7μg/ml groups on the metaphases (P＜0.05), in theexperiment of the effect on the mouse 8- cell embryo stage single blastomere ofvinblastine with different concentrations and duration, by x~2 statistical analysis.

根据实验的实际情况，适宜制备小鼠4-细胞期胚胎单卵裂球染色体标本的长春花碱的处理浓度和时间是0.1μg／ml和8小时。4、在确定长春花碱不同处理浓度和时间对小鼠8-细胞期胚胎单卵裂球中期分裂相数影响的实验中，经统计分析，阻断培养0.1μg／ml浓度组中10小时组与其他三组差异显著；阻断培养0.3μg／ml浓度组中8小时组和10小时组间差异不显著，但与其他两组差异显著；阻断培养0.5μg／ml浓度组中10小时组与其他三组差异显著；阻断培养0.7μg／ml浓度组中10小时组与其他三组差异显著(P＜0.05)。

So we selected the colchicine optimumparameters were 0.2μg/ml and 6 hour cultured duration.The third, there were significantly differences percent between 10 hourgroups and other three groups (4 hour groups, 6 hour groups and 8 hour groups) in0.1μg/ml groups; and there were significantly differences between 8 hour groupsand 10 hour groups, but they had no significantly differences among other twogroups in 0.3μg/ml groups; and there were significantly differences between 10hour groups and 6 hour groups, but 10 hour groups had no significantlydifferences among other two groups in 0.5μg/ml groups; and there weresignificantly differences between 8 hour groups and other three groups in0.7μg/ml groups on the metaphases (P＜0.05), in the experiment of the effect onthe mouse 4- cell embryo stage single blastomere of vinblastine with differentconcentrations and duration, by x~2 statistical analysis.

根据实验的实际情况，适宜制备小鼠8-细胞期胚胎单卵裂球染色体标本的秋水仙素的处理浓度和时间是0.2μg／ml和6小时。3、在确定长春花碱不同处理浓度和时间对小鼠4-细胞期胚胎单卵裂球中期分裂相数影响的实验中，经统计分析，阻断培养0.1μg／ml浓度组中10小时组与其他三组差异显著(4小时组、6小时组和8小时组)；阻断培养0.3μg／ml浓度组中8小时组和10小时组间差异不显著，但与其他两组差异显著；阻断培养0.5μg／ml浓度组中10小时组与6小时组差异不显著，而与其他两组差异显著；阻断培养0.7μg／ml浓度组中8小时组与其他三组差异显著(P＜0.05)。

Sowe selected the vinblastine optimum parameters were 0.1μg/ml and 8 hourcultured duration.The fifth, there were significantly differences between 0.45% sodium chloride groups and other two groups (0.5% sodium citrate groups and 0.35%potassium chloride groups) on the metaphases (P＜0.05), in the experiment of theeffect on the mouse 4-and 8-cell embryo stage single blastomere of differenthypotonic fluids, by x~2 statistical analysis.

根据实验的实际情况，适宜制备小鼠8-细胞期胚胎单卵裂球染色体标本的长春花碱的处理浓度和时间是0.1μg／ml和10小时。5、在确定不同种类低渗液处理对小鼠4、8-细胞期胚胎单卵裂球中期分裂相数影响的实验中，经统计分析，0.45％氯化钠低渗液组与其他两组(0.5％柠檬酸钠和0.35％氯化钾)差异显著(P＜0.05)。

Early cleavage rate,embryo quality,the rate of blastocyst,implantation and pregnant rates from these zygotes were observed,and the transferred embryos were selected according to the pronuclei orientation and early cleavage time.

根据受精卵原核构型的不同分为四组，结合构型类型及早期卵裂与否进行选择性移植，通过观察优质胚胎率、囊胚形成率、种植率和怀孕率，来评估合子原核构型和早期卵裂与胚胎发育潜力的关系。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。