内蒙古白绒山羊肌肉营养特性的研究

Study on the characteristic of cashmere muscle in inner Mongolia

研究采用常规营养成分分析法对同等饲养条件屠宰的6只成年绒山羊4个部位的肌肉进行全面理化分析与比较研究,对绒山羊肌肉品质进行初步评定。结果表明,臂三头肌的灰分含量最高,臀肌的水分和脂肪含量最高,背最长肌的蛋白含量最高;背最长肌的总氨基酸含量最高,所有部位氨基酸含量最高的前4种氨基酸为:谷氨酸>天门冬氨酸>赖氨酸>亮氨酸(平均含量都超过7%),臂三头肌的鲜味氨基酸含量及所占比例为最高;IMF含量最高的是臀肌;单不饱和脂肪酸含量在绒山羊所检4个部位中臀肌的含量最高,背最长肌的多不饱和脂肪酸含量最低,山羊的股二头肌中的DHA和EPA的含量及二者之和均比其它部位高。

This study adopted the conventional nutritional analysis method to analysis the muscle nutri- tion of the six cashmere in the same conditions, including amino acid content, fatty acid content and in- tramuscular fat content, preliminary assessment of the quality of their muscles.The results showed the content of water, fat and ashes in arm were highest, the content of protein in back was highest; the con- tent of the total amino acids was highest, the four higher amino acids was Glu〉Asp〉Lys〉Leu（average content was more than 7%）, IMF in buttocks was highest; delicious amino acids in the triceps muscle of arm and the proportion is the highest; The IMF content of gluteal was the highest;Monounsaturated fatty acid content of gluteal muscle in cashmerewere the highest back muscle longest minimum content of polyunsaturated fatty acids（P〈0.05）. DHA and EPA comtent were higher than other part（P〈0.05）.