Table 4. Effect of the different combinations of the SNPs g.269 G>A, g.480C>T, and g.1536C>T on the semen quality traits of Chinese Holstein bulls.
| Combined haplotypes | Sample size | Ejaculate volume (mL) | Initial sperm motility (%) | Sperm density (×108/mL) | Post-thaw cryopreserved sperm motility (%) | Deformity rate (%) |
| H1H4 | 7 | 6.47±0.25 | 72.65±0.99 | 14.71±0.37a | 42.60±0.82 | 11.86±0.72a |
| H5H1 | 19 | 6.66±0.39 | 70.71±1.57 | 11.22±0.59 | 35.53±1.27 | 14.34±0.96 |
| H5H2 | 42 | 5.60±0.57 | 68.80±1.30 | 9.36±0.86b | 38.14±1.86 | 15.22±1.57 |
| H6H2 | 17 | 5.84±0.52 | 66.83±2.06 | 10.08±0.77 | 40.97±1.67 | 14.89±0.86 |
| H6H4 | 8 | 6.17±0.61 | 64.65±1.45b | 9.48±0.92b | 40.19±1.99 | 14.45±1.11 |
| H8H4 | 21 | 7.77±0.12 | 74.87±0.49a | 11.39±0.18 | 41.34±0.40 | 12.54±0.30 |
| H5H6 | 84 | 5.99±0.27 | 70.19±1.03 | 10.36±0.41 | 40.61±0.88 | 14.40±0.72 |
| H6H6 | 36 | 6.65±0.36 | 64.74±1.43b | 12.24±0.54 | 37.78±1.19 | 17.11±0.64b |
| H5H8 | 57 | 6.65±0.43 | 72.17±1.44 | 10.26±0.64 | 35.26±1.47 | 16.40±0.62 |
| H6H8 | 16 | 6.29±0.41 | 61.92±0.85b | 13.01±0.57 | 31.84±0.91 | 19.47±0.93b |
| H7H8 | 25 | 6.98±0.28 | 74.66±0.81a | 11.75±0.48 | 41.14±1.57 | 12.24±0.47a |
| H8H8 | 43 | 6.14±0.40 | 65.19±1.09 | 10.26±0.82 | 34.78±1.41 | 13.40±0.42 |
Note: Means with the same small letters within the same row differ at P<0.05. Means marked with different superscript or without any superscript do not differ statistically. H1 = ACC, H2 = ACT, H3 = ATC, H4 = ATT, H5 = GCC, H6 = GCT, H7 = GTC, and H8 = GTT.