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| Concentration (IU/l) | No. ofembryos cultured | No. of embryos cleaved (%)* | No. ofblastocysts (%)* |
| 0 | 170 | 141 (85.1 ± 3.8) | 54 (32.2 ± 3.7)a |
| 50 | 170 | 124 (71.8 ± 3.3) | 35 (19.8 ± 5.0)b |
| 250 | 170 | 132 (76.1 ± 7.0) | 29 (15.5 ± 5.1)bc |
| 500 | 161 | 125 (76.6 ± 3.8) | 15 (9.1 ± 3.2)c |
# Data from 6 replicates. * The percentages of cultured embryos represent means ± SEM. a-b Values with different superscripts differ significantly (P<0.05).
