Table 1.

Descriptive summary of phenotype data and results of variance component estimation.

Traits	Phenotypic Data					Variance Components
	Mean	SD	Max	Min	CV	σ2 g	σ2 p	h2
Backfat Thickness (mm)	14.08	4.9	43	2	0.35	6.79	16.98	0.29
Carcass Weight(kg)	441.22	52.7	682	159	0.12	660.25	1962.58	0.25
Eye Muscle Area (cm2)	95.8	12.0	155	34	0.13	38.23	95.69	0.29
Marbling Score (1–9)	6.1	1.9	9	1	0.31	1.24	2.04	0.38

σ² _g—additive genetic variance; σ² _p—phenotypic variance; h²—heritability.