|  |  | No. of | No. of | No. (%)b of embryos developed to | Mean no. ± SEM | |
---|---|---|---|---|---|---|---|
 |  |  |  |  | Mean no. ± SEM |  |  |
 |  | No. of | complexes | complexes | ≥ 2-cell | Blastocyst | of cells in |
Recipient | Donor | trials | treated | fused (%)a | (2)c | (7)c | blastocysts |
M I | CON | 4 | 180 | 132 (73.3)d | 7 (5.3)d | 2(1.5)d | 19.0 ± 5.0 |
 | NOC | 4 | 179 | 72 (40.2)de | 7 (9.7)d | 0(0)d | - |
M II | CON | 3 | 227 | 131 (57.7)d | 50 (38.2)e | 10 (7.6)e | 45.1 ± 6.2 |
 | NOC | 3 | 136 | 39 (28.7)e | 6 (15.4)de | 0(0)d | - |