摘要
以中国地方猪种大河猪和以大河猪为母本选育的培育品种大河乌猪为研究对象,研究了2个猪种肌肉的氨基酸和脂肪酸组成情况。结果表明,以肉质性状优良闻名于世的大河猪及含有大河猪血缘的大河乌猪肌肉中含有丰富的氨基酸组成。含量最多的是谷氨酸,2个品种的肌肉中分别达到12.119%和12.320%。含量最少的是蛋氨酸和脯氨酸,蛋氨酸含量分别为1.753%和1.792%,脯氨酸分别为2.535%和2.566%。2个品种间各种常见氨基酸的组成差异均不显著(P>0.05)。另外,以影响肌肉分化形成的Myf-6基因为候选基因,研究了Myf-6基因在试验猪群中的分布情况,并结合氨基酸测定结果进行了Myf-6基因与肌肉氨基酸组成间的关联性分析。结果表明,Myf-6基因的AA纯合子与AB杂合子个体间在肌肉中氨基酸的组成上差异不显著(P>0.05)。
The amino acid composition and fatty acid composition of muscle were studied in two pig breeds, that is, the native Dahe pig and the developed Dahewu pig, which is improved by cross-breeding between Duroc and Dahe pig. The Dahe pigs are famous for its excellent meat quality. The results indicated that the muscle of Dahe pigs and Dahewu pigs was rich in amino acid. The content of Glu was the highest, reaching 12.119 % and 12.320 % in Dahe pigs and Dahewu pigs, respectively. The content of Met and Pro was the lowest, respectively reaching 1.753 % and 2.535 % in Dahe pigs and respectively reaching 1.792 % and 2.566 % in Dahewu pigs. There were not significant differences in the amino acid composition between the two pig breeds （P〉0.05）.The Myf-6 gene influencing muscular differentiation was used a candidate gene to study the distribution of Myf-6 gene in the two pig breeds. And the relationship between Myf-6 gene and the amino acid composition of muscle was also analyzed. The results showed that there was not significant difference in the amino acid composition of muscle （P〉0.05）between AA homozygous individual and AB heterozygous individual.
出处
《畜牧与饲料科学》
2009年第5期41-43,共3页
Animal Husbandry and Feed Science
