Table 1. Oocytes with astral microtubules after 36 h of aging.
| Treatment | No. oocyte | No. of oocytes with astral microtubules (%) |
| Fresh MII | 75 | 1 (1)a |
| Untreated-36 h | 75 | 74 (99)b |
| 20 mM NAM-36 h | 83 | 16 (19)c |
| 500 nM TSA-36 h | 77 | 39 (51)d |
a, b, c, d P<0.01; n=5.