摘要
It is not clear how oocyte maturation, embryo development and differentiation are regulated, though they are critical to the mechanism of reproduction, in vitro fertilization has been greatly successful in domestic animals and human since the ability of immature mammalian oocytes of undergoing maturation in vitro was first demonstrated by Pincus and Enzmann. Although human in vitro fertilization has experienced immense popularity and more than 5000 test-tube babies have been born to date, serious legal and
基金
Rockefeller Foundation on Biology of Reproduction of the Chinese Academy of Sciences
basic resarch fund of Yunnan
the fund of Director of Kunming Institute of Zoology.
