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In-vitro development of embryos and offspring derived from blastocysts that were developed using vitrified–warmed or fresh oocytes and then transferred to surrogate mothers.
| Oocyte group | Oocytes inseminated | 2-Cell embryos | Blastocysts | Recipients | Blastocysts transferred | Recipients delivered | Live offspring |
|---|---|---|---|---|---|---|---|
| Vitrified–warmed | 300 | 171 (57) | 137 (46) | 12 | 120 | 6 (50) | 23 (19) |
| Fresh | 300 | 191 (64) | 142 (47) | 12 | 120 | 7 (58) | 27 (23) |
Values are number or number (%).
