Table 2.
Donor cells (fluorescence protein) | Stage of host embryos | In vitro development of embryos
|
No. of recipients | In utero development of fetuses
|
|||
---|---|---|---|---|---|---|---|
No. of aggregated embryos | No. of blastocyst (%) | No. of chimeric blastocyst (%) | No. of pregnant recipients | No. of chimeric piglets | |||
PFFs, P2 (GFP) | Four-cell embryo | 12,605 | 1,608 (12.8) | 921 (7.3) | 9 | 3 | 0 (0/8) |
pM12-6-2, P5 (tdTomato) | Four-cell embryo |
Abbreviations: GFP, green fluorescent protein; PFFs, porcine fetal fibroblasts.