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Timing of embryo development after fertilization of nontransgenic and transgenic eggs
| Group | # MII eggs | Early PN formation* (%) | Late PN formation** (%) | Cleavage to 2-cell (%) | Fully expanded blastocyst (%) |
|---|---|---|---|---|---|
| NTG | 189 | 35/189 (18.5) | 137/189 (72.5) | 163/189 (86.2) | 116/163 (71.2) |
| TG | 124 | 21/124 (16.9) | 96/124 (77.4) | 102/124 (82.3) | 73/102 (71.6) |
Early PN formation was observed at 5.5-6 hrs after insemination
Late PN formation was observed at 7-8 hrs after insemination
