Table 1. Average results of repeated ovum pick-up followed by in vitro embryo production and embryo flushing after superovulation of Holstein-Friesian heifers (n = 64), divided into groups (quartiles) according to their anti-Muellerian hormon (AMH) plasma levels.
| Lower quartile AMH ≤ 25% |
Middle quartiles 25%> AMH <75% |
Upper quartile AMH ≥ 75% |
||
| AMH | (ng/ml) | 0.185 ± 0.011a | 0.321 ± 0.001c | 0.634 ± 0.073b |
| Follicles per OPU | (n) | 7.7 ± 0.6a | 9.9 ± 0.8 | 11.9 ± 2.0b |
| Oocytes per OPU | (n) | 5.7 ± 0.5a | 7.4 ± 0.6 | 8.2 ± 0.8b |
| IVF blastocysts per OPU | (n) | 1.1 ± 0.3 | 1.3 ± 0.2 | 1.4 ± 0.2 |
| Flushed embryos | (n) | 3.9 ± 1.1 | 4.3 ± 0.8 | 5.4 ± 1.3 |
| Transferable embryos | (n) | 3.3 ± 1.1 | 3.0 ± 0.5 | 3.7 ± 0.8 |
Values are presented as means ± SE. Values with different superscripts in rows differ significantly (P < 0.05).