Figure 1: Patterns of CGs distribution in vitrified bovine oocytes. a: pattern 1: distribution of CGs in the central medullary zone as clusters or among the oocyte cytoplasmic membrane and the central zone; b: pattern 2: complete migration of CGs and formation of clusters lining the oocyte cytoplasmic membrane; c: pattern 3: formation of a monolayer CGs lining the oocyte cytoplasmic membrane; d: pattern 4: showing exocytosis of CGs in which no CGs or some small clusters were seen.