Figure 1From: Effects of vitrification on nuclear maturation, ultrastructural changes and gene expression of canine oocytesMorphology of vitrified-warmed oocytes after warming (200×). A) Normal oocyte with compacted cumulus cells, symmetrical shape and no signs of lysis. B) Abnormal oocyte with damaged cumulus cells, ruptured zona pellucida and leakage of cytoplasm.Back to article page