Table 2. Effect of treating nuclear-donor cells with Valproic Acid on pre-implantation developmental rates of cloned embryos.
| Groups | Oocytes N | Fused embryos N (%) | Cleavage N (%) | Blastocysts N (%) |
| Control | 180 | 139 (77.22) | 112 (80.57) | 44 (31.65) |
| VPA | 168 | 115 (68.45) | 90 (78.26) | 38 (33.04) |
Values within the same column did not differ statistically.
Fusion rate: number of embryos fused/number embryos reconstructed.
Cleavage rate: number of cleaved embryos/number of fused embryos.
Blastocyst rate: number of blastocysts/number of fused embryos.