Birth of normal calves resulting from bovine oocytes matured, fertilized, and cultured with cumulus cells in vitro up to the blastocyst stage.


Bovine oocytes matured in vitro were fertilized in high proportions (92% of matured oocytes) by sperm capacitated with Ca ionophore A23187. Eight percent of inseminated oocytes that were denuded 96 h after insemination developed to the morula stage when cultured for 6-120 h after insemination with cumulus cells from the original oocytes. Inseminated oocytes… (More)


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