SNP | g.78 G>A | g.184 C>T | ||||||||||
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Genotype | GG | GA | AA | p-value | Genetic effect | CC | CT | TT | p-value | Genetic effect | ||
N | 363 | 208 | 41 | Additive | Dominance | 106 | 282 | 224 | Additive | Dominance | ||
Carcass trait | ||||||||||||
CW (kg) | 426.95±2.22 | 427.85±3.29 | 426.88±6.28 | 0.971 | −0.979±8.061 | −3.212±10.343 | 431.39±3.98 | 425.16±2.64 | 427.94±2.98 | 0.441 | 6.235±5.476 | 6.076±7.922 |
BFT (mm) | 13.04±0.25 | 13.50±0.40 | 12.71±0.83 | 0.504 | −0.792±0.955 | −0.934±1.226 | 13.11±0.54 | 13.00±0.31 | 13.43±0.33 | 0.649 | −0.437±0.649 | 0.760±0.940 |
MS | 5.51±0.11 | 5.42±0.15 | 4.63±0.28 | 0.053 | −0.888±0.359* | −0.710±0.460 | 5.80±0.22 | 5.46±0.13 | 5.21±0.13 | 0.054 | 0.586±0.244 | 0.088±0.353 |
Fatty acid composition (%) | ||||||||||||
C14:0 | 3.52±0.03a | 3.62±0.04a | 3.92±0.11b | 0.001 | 0.419±0.120*** | 0.259±0.154 | 3.39±0.07a | 3.55±0.04b | 3.71±0.04c | 0.000 | −0.321±0.081*** | −0.099±0.117 |
C16:0 | 25.71±0.11a | 25.81±0.13a | 26.98±0.27b | 0.001 | 1.276±0.362** | 1.042±1.465 | 25.18±0.21a | 25.91±0.12b | 26.04±0.12b | 0.001 | −0.865±0.246** | −0.541±0.356 |
C18:0 | 10.34±0.08 | 10.37±0.09 | 10.30±0.20 | 0.941 | −0.072±0.059 | −0.011±0.033 | 10.38±0.16 | 10.43±0.09 | 10.22±0.09 | 0.289 | 0.219±0.176 | −0.324±0.254 |
C14:1 | 1.21±0.02 | 1.19±0.03 | 1.27±0.07 | 0.459 | 0.089±0.061 | 0.128±0.091 | 1.14±0.03a | 1.20±0.02ab | 1.25±0.03b | 0.049 | −0.111±0.048* | −0.036±0.070 |
C16:1 | 6.41±0.06 | 6.42±0.07 | 6.53±0.18 | 0.808 | 0.128±0.091 | 0.277±0.233 | 6.39±0.10 | 6.32±0.07 | 6.56±0.08 | 0.067 | −0.241±0.123 | 0.108±0.178 |
C18:1 | 44.47±0.14b | 44.19±0.16b | 41.87±0.37a | 0.000 | −2.616±0.484*** | −1.982±0.621** | 45.60±0.29b | 44.10±0.15a | 43.66±0.16a | 0.000 | 1.946±0.327*** | 0.859±0.473 |
C18:2n6 | 2.93±0.04a | 3.05±0.05ab | 3.49±0.12b | 0.000 | 0.589±0.139*** | 0.439±0.179 | 2.74±0.08a | 2.99±0.05b | 3.14±0.05b | 0.000 | −0.458±0.095*** | −0.095±0.138 |
C18:3n3 | 0.36±0.01b | 0.34±0.01b | 0.26±0.03a | 0.018 | −0.097±0.038* | −0.072±0.049 | 0.41±0.02b | 0.34±0.01a | 0.32±0.01a | 0.001 | 0.094±0.025*** | 0.038±0.037 |
SFA | 40.22±0.16a | 40.60±0.18a | 41.84±0.40b | 0.002 | 1.629±0.528** | 0.903±0.678 | 39.53±0.32a | 40.61±0.16b | 40.71±0.18b | 0.001 | −1.184±0.357*** | −1.206±0.157 |
MUFA | 53.23±0.17b | 52.96±0.21b | 50.72±0.54a | 0.000 | −2.518±0.544*** | −1.881±0.699 | 54.46±0.32b | 52.70±0.19a | 52.63±0.21a | 0.000 | 1.838±0.369*** | 1.059±0.534 |
Fatty acid index | ||||||||||||
M/S | 1.34±0.01b | 1.32±0.01b | 1.24±0.02a | 0.002 | - | - | 1.40±0.02b | 1.32±0.01a | 1.31±0.01a | 0.000 | - | - |
IC141 | 25.78±0.36 | 24.74±0.46 | 25.05±1.41 | 0.217 | - | - | 25.88±0.75 | 25.38±0.36 | 25.12±0.50 | 0.647 | - | - |
IC162 | 20.55±0.17 | 20.44±0.20 | 20.39±0.40 | 0.894 | - | - | 20.87±0.29 | 20.30±0.18 | 20.70±0.21 | 0.348 | - | - |
IC183 | 80.92±0.15 | 80.85±0.16 | 80.24±0.39 | 0.318 | - | - | 81.22±0.28 | 80.68±0.15 | 80.86±0.11 | 0.195 | - | - |
SNPs, single nucleotide polymorphisms; THRSP, thyroid hormone responsive protein; CW, carcass weight; BFT, backfat thickness; MS, marbling score from 1 to 9 such that the larger score, the more abundant the intramuscular fat; SFA, saturated fatty acid; MUFA, mono unsaturated fatty acid; M/S, MUFA/SFA.
SNPs, single nucleotide polymorphisms; THRSP, thyroid hormone responsive protein; LD, linkage disequilibrium; CW, carcass weight; BFT, backfat thickness; MS, marbling score from 1 to 9 such that the larger score, the more abundant the intramuscular fat; SFA, saturated fatty acid; MUFA, mono unsaturated fatty acid; M/S, MUFA/SFA.