Table 6.
Association of SNPs of studied genes with milk traits in Barki ewes (Mean ± SE).
| Gene | SNP Locus | Genotype | Milk Yield (kg) | Fat % | Protein % | Lactose % | Total Solids % |
|---|---|---|---|---|---|---|---|
| LEP | rs420693815 | TT (15) | 35.55 ± 4.18 | 3.81 ± 0.32 | 5.33 ± 0.30 | 6.73 ± 0.24 | 19.17 ± 1.27 |
| GT (55) | 26.67 ± 1.27 | 4.56 ± 0.26 | 5.24 ± 0.20 | 6.36 ± 0.22 | 19.05 ± 0.79 | ||
| GG (33) | 29.77 ± 2.66 | 3.92 ± 0.20 | 4.67 ± 0.17 | 6.23 ± 0.17 | 17.24 ± 0.66 | ||
| p value | 0.053 | 0.085 | 0.105 | 0.397 | 0.185 | ||
| IGF1 | rs400398060 | GG (48) | 29.59 ± 1.93 | 4.22 ± 0.22 | 5.06 ± 0.19 | 6.61 ± 0.19 | 18.93 ± 0.76 |
| AG (44) | 28.46 ± 2.07 | 4.22 ± 0.26 | 5.14 ± 0.20 | 6.22 ± 0.21 | 18.39 ± 0.76 | ||
| AA (10) | 28.08 ± 1.83 | 3.90 ± 0.39 | 4.35 ± 0.25 | 5.71 ± 0.18 | 14.56 ± 0.46 | ||
| p value | 0.940 | 0.969 | 0.467 | 0.583 | 0.572 | ||
| DGAT1 | rs409119650 | TT (0) | -- | -- | -- | -- | -- |
| CT (20) | 26.25 ± 2.39 | 4.44 ± 0.28 | 4.94 ± 0.30 | 6.18 ± 0.33 | 18.43 ± 1.05 | ||
| CC (84) | 29.56 ± 1.45 | 4.20 ± 0.19 | 5.04 ± 0.14 | 6.38 ± 0.14 | 18.26 ± 0.56 | ||
| p value | 0.287 | 0.607 | 0.643 | 0.282 | 0.807 | ||
| STAT5A | rs161082816 | GG (3) | 34.97 ± 4.02 | 3.45 ± 0.55 | 4.84 ± 0.81 | 4.19 ± 1.30 | 19.28 ± 3.41 |
| AG (21) | 30.39 ± 2.83 | 3.84 ± 0.31 | 4.58 ± 0.22 | 6.38 ± 0.23 | 17.01 ± 0.86 | ||
| AA (73) | 28.62 ± 1.52 | 4.37 ± 0.19 | 5.21 ± 0.16 | 6.52 ± 0.15 | 18.98 ± 0.60 | ||
| p value | 0.638 | 0.297 | 0.149 | 0.001 | 0.199 | ||
| PRL | rs422713690 | GG (33) | 32.59 ± 2.98 | 4.21 ± 0.24 | 5.09 ± 0.23 | 6.61 ± 0.22 | 18.38 ± 0.92 |
| AG (48) | 25.90 ± 1.23 | 3.95 ± 0.24 | 4.93 ± 0.18 | 6.20 ± 0.20 | 18.02 ± 0.71 | ||
| AA (27) | 30.62 ± 2.14 | 4.79 ± 0.35 | 5.40 ± 0.28 | 6.18 ± 0.30 | 19.96 ± 1.07 | ||
| p value | 0.052 | 0.125 | 0.411 | 0.152 | 0.322 | ||
| CSN1S2 | rs420391387 | CC (23) | 31.44 ± 3.57 | 4.02 ± 0.32 | 5.05 ± 0.22 | 6.31 ± 0.25 | 17.56 ± 0.72 |
| AC (58) | 28.61 ± 1.37 | 4.53 ± 0.25 | 5.12 ± 0.18 | 6.34 ± 0.19 | 19.56 ± 0.71 | ||
| AA (22) | 25.33 ± 2.01 | 4.06 ± 0.30 | 5.09 ± 0.34 | 6.27 ± 0.31 | 17.47 ± 1.20 | ||
| p value | 0.264 | 0.562 | 0.886 | 0.578 | 0.637 | ||
| GHR | rs413776054 | TT (5) | 20.72 ± 2.77 | 4.93 ± 0.78 | 5.31 ± 0.37 | 6.51 ± 0.47 | 19.52 ± 2.53 |
| CT (32) | 31.10 ± 2.57 | 4.25 ± 0.25 | 5.12 ± 0.21 | 5.98 ± 0.23 | 18.03 ± 0.86 | ||
| CC (64) | 29.07 ± 1.50 | 4.20 ± 0.22 | 5.09 ± 0.19 | 6.49 ± 0.18 | 19.05 ± 0.68 | ||
| p value | 0.249 | 0.556 | 0.791 | 0.450 | 0.667 | ||
| GHRHR | rs414991449 | TT (43) | 28.61 ± 1.95 | 4.49 ± 0.26 | 5.32 ± 0.22 | 6.17 ± 0.23 | 19.26 ± 0.84 |
| CT (48) | 29.71 ± 1.90 | 4.09 ± 0.25 | 4.96 ± 0.19 | 6.57 ± 0.19 | 18.71 ± 0.72 | ||
| CC (10) | 26.44 ± 1.86 | 4.39 ± 0.35 | 5.12 ± 0.44 | 5.91 ± 0.44 | 16.76 ± 1.74 | ||
| p value | 0.794 | 0.215 | 0.081 | 0.612 | 0.035 |