Meiotic arrest, resumption, and TZP retraction in bovine COCs undergoing pre-IVM: lessons from a refined GV stage classification
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The nuclear, cytoplasmic, and molecular maturation of the mammalian oocyte is a finely orchestrated sequence of events that relies on proper cumulus-oocyte communication. Bovine oocytes enter the in vitro maturation systems at the germinal vesicle stage (GV) e... ...