We compared the nutritional composition and muscle quality of a new, selectively bred strain of , “Youlu No.1” with a non-selected population (control). The moisture, crude protein, crude fat, crude ash content of “Youlu No.1” with the control were 73.63% and 74.35%, 19.34% and 19.42%, 4.45% and 4.67%, 1.09% and 1.12%, . The muscle moisture and crude fat content were lower in “Youlu No.1” than in the controls but there was no difference in crude protein and crude ash content. The muscle tissue levels of calcium (Ca), magnesium (Mg), iron (Fe), zinc (Zn) and selenium (Se) were 428.34 and 424.57 mg/kg, 252.63 and 259.77 mg/kg, 6.92 and 5.76 mg/kg, 7.73 and 5.77 mg/kg, 0.40 and 0.41 mg/kg in the “Youlu No.1” and the control groups, respectively. Fe and Zn were significantly higher in “Youlu No.1” than in the control (<0.05), but there was no difference between the groups for the remaining elements. There was no difference in the muscle amino acid profile among the two groups. Total amino acid (TAA), essential amino acid (EAA), and delicious amino acid (DAA) content was 18.10 and 17.17 mg/100 g, 9.46 and 8.72 mg/100 g, 8.00 and 7.80 mg/100 g for the two groups. Based on a nutritional evaluation that incorporated the amino acid score (AAS) and chemical score (CS), methionine + cystine (Met+Cys) was identified as the first limiting amino acid. We found 28monounsaturated fatty acid, and polyunsaturated fatty acid content was 13.96 and 14.68 g/kg, 13.66 and 14.72 g/kg, 16.37 and 16.58 g/kg, respectively. The saturated fatty acid/unsaturated fatty acid (SFA/UFA) ratio was 0.47. In summary, “Youlu No.1” had higher muscle moisture, crude fat, iron, and zinc content than the control group, and there were no significant differences in the composition and other nutrients of muscle between the two groups.