Efecto de los procesos de criopreservación sobre la fertilidad seminal

Cryopreserved semen has impaired fertility compare to fresh semen. The lower post-thaw viability and fertility is related with the spermatozoa sub lethal dys- function establishes in part of the survival population. These facts are relations with many factors (e.g. cold shock, cooling rate, extender composition, and osmotic stress) during the cryopreservation process. In this paper factor affecting the quality or survival spermatozoa are reviewed.