| Unfertilised oocytes | Fertilised oocytes | ||
---|---|---|---|---|
Experiment | Number of embedded spermatozoa per ZP mean ± SEM | Penetrated zona pellucida % | Number of embedded spermatozoa per ZP mean ± SEM | Penetrated zona pellucida % |
1 | 0.93 ± 0.32 | 57 (8/14)a | 0.18 ± 0.13** | 18* (2/11) |
2 | 1.14 ± 0.60 | 57 (4/7) | 0.22 ± 0.11** | 17*(4/23) |
3 | 1.14 ± 0.43 | 57 (8/14) | 0.26 ± 0.13** | 21*(4/19) |
Total | 1.06 ± 0.23 | 57 (20/35) | 0.23 ± 0.07*** | 19*** (10/53) |