Abstract
In this study, we analyzed the meat quality of Qianhua Mutton Merino sheep (QHMM). QHMM and Small-tail Han sheep (STH) were selected as the test animals. After slaughtering, the longissimus dorsi muscles were tested to determine the nutrient composition, content of amino acid, fatty acid, and muscle fiber diameter. According to the nutrient test result, the protein content of QHMM was higher than that of STH. However, the fat content was significantly lower (P < 0.05) than STH. Additionally, total amino acid content, total essential amino acid content, total half-essential amino acid content, total non-essential amino acid content, and flavor amino acid content of QHMM were significantly higher (P < 0.05) than those of STH. Moreover, the contents of C22:1 n9, C18:2 n6, C18:3 n6, C22:6 n6, and C10:0 of the muscle in QHMM were significantly higher (P < 0.05) than those of STH. Furthermore, the essential amino acid score, the total unsaturated-to-saturated fatty acid ratio, and the polyunsaturated-to-saturated fatty acid ratio of QHMM were greater than those of STH. Additionally, the muscle fiber diameter of QHMM was considerably lower (P < 0.01) than that of STH. In conclusion, the meat quality of QHMM was better than that of STH.
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