The objectives of this study were to determine: 1) whether PZM-3 or NCSU-23 better support porcine embryonic development, 2) the transcript levels of BAX and BCL2L1 genes in porcine blastocysts, and 3) effects of inhibiting transcription and translation on porcine early embryogenesis. It was concluded that use of PZM-3 as a porcine embryo culture medium could better promote embryonic development than NCSU-23. No significant differences of the BAX and BCL2L1 genes expression were detected in blastocysts generated from PZM-3 and NCSU-23 media. In addition, EGA might not be necessary for the porcine embryos cleavage; however, mRNA translations might be important for both porcine embryos cleavage and blastocysts formation. In addition, more fundamental research on mechanisms responsible for porcine early embryonic development should be studied.

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