卵母细胞

Abstract： Aim:To establish the methods of microfertilization and explore the fertilizing potential of mouse sperm obtained from caput epididymidis and cauda epididymidis.

摘 要： 目:建立显微受精方法，并探讨小鼠附睾精子在显微注射进入卵母后受精能力。

Conclusion The electrofusion efficiency may he improved by inserting more somatic cells into PVS when the somatic cells have a low electrofusion efficiency with oocytes.

结论低融合效率与卵母电融合时可通过增加PVS数目来提高融合效率。

Then their synthese speed slows down.But the synthese of RNA and DNA inthe follicular cell is continuous during vitellogenesis, which may relate toformation of livetin.

而滤泡上皮在卵母卵黄形成期，它RNA和DNA合成均较快，因此认为滤泡上皮合成分泌了一些物质参与卵黄蛋白形成。

The secondary oocyte now divides again into two new cells of unequal size: a relatively large ootid (mature egg cell) and a minute second polar body.

此时，次级卵母又分裂成两个大小不对等新：一个相对很大卵子（成熟卵）和一个微小次级极。