Medium supplement to increase the efficiency of oocyte maturation and embryo culture in vitro

The present invention provides a novel oocyte maturation medium or/and embryo culture medium with a chemically defined supplement to produce matured oocytes at high efficiency. The inventive medium or supplement comprises three growth factors, namely, fibroblast growth factor 2 (FGF2), leukemia inhibitory factor (LIF), and insulin-like growth factor 1 (IGF-1) in a synergistic combination. Methods for oocyte and embryo culture are also provided.
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