Table 5.
Results from the superovulation (Experiment 3).
| Embryos (%)3,4,5 | ||||||
|---|---|---|---|---|---|---|
| Bull SCR class | Sire | n1 | Unfertilized oocytes (%)2,4,5 | Degenerated | Grade 1 | Grade 2 |
| High | 3 | 11 | 3.9 ± 8.8a | 17.8 ± 4.6b | 63.2 ± 5.4a | 24.0 ± 4.5a,b |
| 5 | 10 | 11.9 ± 9.3a | 11.5 ± 4.7c | 63.9 ± 5.6a | 21.0 ± 4.6a,b | |
| Low | 8 | 11 | 6.6 ± 8.8a | 13.8 ± 4.6c | 64.2 ± 5.4a | 19.9 ± 4.5a,b |
| 9 | 13 | 39.8 ± 7.9b | 26.5 ± 4.9a,b | 56.4 ± 5.8a | 15.5 ± 4.8b | |
| 10 | 15 | 15.0 ± 6.9a | 29.5 ± 4.1a | 42.4 ± 4.9b | 28.9 ± 4.0a | |
| Overall | High | 21 | 3.7 ± 7.4a | 17.0 ± 3.6a | 60.1 ± 4.3a | 24.3 ± 3.5a |
| Low | 39 | 20.7 ± 5.0b | 23.7 ± 3.0a | 52.8 ± 3.6a | 22.8 ± 2.9a | |
1Number of superovulation rounds.
2Percentage of total structures recovered.
3Percentage of fertilized oocytes.
4Values are presented as least-squares means ± SEM.
5Numbers with different superscripts differ (P < 0.05).