Table 3 Association between BRD2 nsSNP c.1709G>C, and meat quality traits

Model	Dominant		Recessive		Codominant
Genotype	GG(n=257)	GC+CC(n=114)	GG+GC(n=358)	CC(n=13)	GG(n=257)	GC(n=101)	CC(n=13)
Carcass weight (kg)	86.37±5.81^*	84.64±5.35^*	85.91±5.76	84.00±4.22	86.37±5.81^*	84.72±5.49^*	84.00±4.22^*
Backfat thickness (mm)	25.24±5.14	24.37±4.84	25.01±5.03	24.00±5.87	25.24±5.14	24.42±4.73	24.00±5.87
Meat color
CIE L*	48.48±3.04	48.64±2.66	48.54±2.92	48.17±3.13	48.48±3.04	48.70±2.60	48.17±3.13
CIE a*	6.28±1.13^*	5.97±0.91^*	6.19±1.08	6.04±0.96	6.28±1.13^*	5.96±0.91^*	6.04±0.96^*
CIE b*	2.91±1.10^*	2.64±1.06^*	2.84±1.10	2.65±0.98	2.91±1.10	2.64±1.07	2.65±0.98
Chemical composition (%)
Moisture	75.53±0.91	75.47±0.76	75.51±0.87	75.50±0.72	75.53±0.91	75.47±0.77	75.50±0.72
Collagen	0.89±0.13	0.89±0.14	0.89±0.13	0.87±0.14	0.89±0.13	0.89±0.14	0.87±0.14
Protein	23.74±0.74^*	23.97±0.69^*	23.82±0.72	23.72±0.86	23.74±0.74^*	24.00±0.66^*	23.72±0.86^*
Fat	2.88±1.23	2.75±1.10	2.83±1.18	3.07±1.45	2.88±1.23	2.71±1.05	3.07±1.45
Drip loss (%)	4.67±1.99	4.35±1.79	4.60±1.94	3.69±1.50	4.67±1.99	4.43±1.82	3.69±1.50
Cooking loss (%)	27.60±3.26	27.24±4.28	27.61±3.37	24.19±7.04	27.60±3.26^*	27.63±3.66^*	24.19±7.04^*
Water-holding capacity (%)	58.13±2.65	58.20±2.60	58.07±2.57^*	60.30±3.40^*	58.13±2.65^*	57.93±2.36^*	60.30±3.40^*
Warner-Bratzler shear force (kg/cm²)	2.94±0.65	2.84±0.75	2.92±0.68	2.60±0.72	2.94±0.65	2.87±0.75	2.60±0.72
Postmortem temperature (℃ )
T1	37.71±3.70	37.93±3.77	37.87±3.62	35.69±5.24	37.71±3.70	38.25±3.43	35.69±5.24
T4	26.71±4.26	27.11±4.81	26.96±4.41^*	23.96±4.40^*	26.71±4.26^*	27.57±4.71^*	23.96±4.40^*
T12	17.01±2.95	17.36±3.63	17.24±3.18^*	14.59±2.17^*	17.01±2.95^*	17.77±3.63^*	14.59±2.17^*
T24	4.98±2.91	5.75±3.81	3.28±3.88^*	3.88±2.16^*	4.98±2.91^*	6.03±3.94^*	3.88±2.12^*
Postmortem pH₂₄	5.82±0.22^*	5.87±0.21^*	5.83±0.22^*	5.98±0.17^*	5.82±0.22^*	5.85±0.22^*	5.98±0.17^*

Data shown as Means±SD.
Superscript indicates statistically significant differences among genotypes (p<0.05).
BRD2, bromodomain-containing protein 2; nsSNP, non-synonymous single nucleotide polymorphisms.