Removal of cytoplasmic lipid enhances the tolerance of porcine embryos to chilling.


The lipid content of porcine 1-cell stage embryos was reduced (delipated) through the use of micromanipulation to remove the lipid layer formed after centrifugation. Of 94 delipated embryos chilled to 4 degrees C for 1 h at the 1-cell or 2- to 4-cell stage, 60 (64%) cleaved in culture with development to the morula-blastocyst stage, whereas all of the… (More)


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