Table 2.
Development of reconstructed oocytes after IVF and transfer into foster mothers
| Composition |
No. of oocytes (%) |
No. of embryos (% of fertilized oocytes) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Karyoplast | Cytoplasm | Reconstructed | Matured | Rereconstructed | Fertilized† | 2-cell | 4-cell | 8-cell | Morula | Blastocyst | Pups |
| Nuclear transfer at the GV-stage (GV-NT) | |||||||||||
| XX | F1.XX | 40 | 39 (98) | 32 | 29 (91) | 29 (100) | 29 (100) | 28 (97) | 28 (97) | 24 (83) | 6 (21) |
| XY | F1.XX | 68 | 65 (96) | 55 | 52 (95) | 52 (100) | 51 (98) | 47 (90) | 42 (81) | 37 (71) | 13 (25) |
| Nuclear transfer at the MII-stage (MII-NT) | |||||||||||
| XX | F1.XX | 73 | 62 (85) | 61 (98) | 55 (89) | 55 (89) | 47 (76) | 35 (56) | 19 (31) | ||
| XY | F1.XX | 104 | 87 (84) | 83 (95) | 79 (91) | 66 (76) | 42* (48) | 25* (29) | 6** (7) | ||
*, P < 0.001; **, P < 0.05.
†Excluding polyspermy.