Cell Donor Influences Success of Producing Cattle by Somatic Cell Nuclear Transfer

Abstract excerpt

To assess sources of variation in nuclear transfer efficiency, bovine fetal fibroblasts (BFF), harvested from six Jersey fetuses, were cultured under various conditions. After transfection, frozen-thawed lung or muscle BFF donor cells were initially cultured in DMEM in 5% CO(2) and air and some were transferred to MEM, with 5% or 20% O(2) or 0.5% or 10% serum and G418 for 2-3 wk. Selected clonal transfected...

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