Table 1.
In vivo development of cloned embryos from different transgenic cells
| Nuclear donor | BFF1 | BFF2 | BFF3 | Total | ||||||
| Cell clone | SC178 | SC208 | SC364 | SC504 | SC598 | SC671 | SC821 | SC892 | SC973 | — |
| Embryos cultured | 166 | 175 | 182 | 161 | 173 | 204 | 182 | 170 | 167 | 1,580 |
| Blastocysts (%) | 58 (34.9) | 49 (28.0) | 54 (29.7) | 42 (26.1) | 47 (27.2) | 51 (25.0) | 61 (33.5) | 54 ( 31.8) | 49 (29.3) | 465 (29.5) |
| Recipients | 18 | 15 | 15 | 16 | 15 | 17 | 19 | 16 | 16 | 147 |
| Pregnancies (%) | 9 (50.0) | 7 (46.7) | 5 (33.3) | 4 (25.0) | 2 (13.3) | 4 (23.5) | 8 (42.1) | 6 (37.5) | 5 (31.3) | 50 (34.0) |
| Calves at birth | 5 | 3 | 1 | 3 | 0 | 1 | 3 | 3 | 4 | 23 |
| Calves surviving at 6 mo | 3 | 2 | 0 | 2 | 0 | 1 | 2 | 2 | 1 | 13 |