Vitrification of In Vitro Matured Oocytes Collected from Adult and Prepubertal Ovaries in Sheep

The protocol aims at providing a standard method for the vitrification of adult and juvenile sheep oocytes. It includes all the steps from the preparation of the in vitro maturation media to the post-warming culture. Oocytes are vitrified at the MII stage using Cryotop to ensure the minimum essential volume.