Table 1.
Mouse embryonic development after vitrification-warming of early cleavage-stage embryos
| Stage of vitrification | Embryos (n) | Survive rate (%) | Blastocysts formation (%) | Hatched (%) |
|---|---|---|---|---|
| Control | 365 | 100.0% (365/365) | 94.8% (346/365) | 81.6% (298/365) |
| Vitrified 2-cell | 204 | 96.0% (196/204) | 69.4% (136/196)a | 52.6% (103/196)a,b |
| Control | 259 | 100.0% (259/259) | 97.7% (253/259) | 80.3% (208/259) |
| Vitrified 4-cell | 217 | 96.8% (210/217) | 93.3% (196/210)a | 60.0% (126/210)a,b |
| Control | 315 | 100.0% (315/315) | 97.8% (308/315) | 81.9% (258/315) |
| Vitrified 8-cell | 210 | 97.1% (204/210) | 91.1% (186/204)a | 78.4% (160/204) |
acompared to control, P < 0.05
bcompared to vitrified 8-cell stage, P < 0.05