Advance in Vitrification of Mammalian Embryos

Embryo cryopreservation is a useful tool for embryology since the early 1970s.It has become an essential part of assisted reproductive technologies,allowing long term storage of valuable embryos from lab animals,livestock,endangered species and humans.It also plays an important role in the livestock breeding,establishment of animal genebank and the commercial embryo transfer.Moreover,it could provide more embryos available for modern embryo biotechnology such as animal cloning,animal transgene and the therapy of sterility in human.This paper reviewed recent efforts in mammalian embryo cryopreservation.