Table 4.
Mouse age (wks) | Oocytes with (+) or without (−) vitrification | No. of blastocysts examined | Total cell numbers in each blastocyst (mean±SD) | Ratio of ICM/TE (mean%±SD) |
---|---|---|---|---|
8–10 | + | 22 | 94.2 ± 41.3a | 17.3 ± 16.2a |
− | 20 | 99.1 ± 44.2a | 22.6 ± 18.4a | |
16–20 | + | 22 | 85.8 ± 46.0a | 20.9 ± 12.3a |
− | 25 | 85.9 ± 38.8a | 23.9 ± 14.3a | |
32–36 | + | 24 | 59.8 ± 29.3b | 8.7 ± 9.9b |
− | 21 | 61.7 ± 37.2b | 22.8 ± 12.8a | |
44–48 | + | 4 | 43.2 ± 37.3c | 9.1 ± 9.7b |
− | 30 | 46.3 ± 17.6c | 24.2 ± 2.9a |
a–cDifferent superscripts indicate significant difference within the same column (P < 0.05)