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

摘 要： 目的:微受精的方法，并探讨鼠附精子在微注射进入卵母细胞后的受精能力。

(3) ductuli epididymis with least and pilus on the epidermis and (4) circular ductus epididymidis with least cutaway.

③附：径最，上皮有纤毛；④附：切面最少，腔圆整。