阿拉善牛的体尺测定及肌肉脂肪酸分析

Body Size Performance and Fatty Acid Analysis of Alxa Cattle

中文关键词: 阿拉善牛  蒙古牛  体尺测定  脂肪酸分析  

英文关键词: Alxa cattle  Mongolia cattle  body size  fatty acids analysis

中文摘要:

      ［目的］阿拉善牛是蒙古牛的一个重要群体,是我国宝贵的肉牛遗传资源。为了解阿拉善牛生长和肉质特性。［方法］本研究对47头阿拉善牛的生长指标进行测定,同时对16头阿拉善牛和13头对照牛的背部最长肌的37种脂肪酸进行分析。［结果］表明：各年龄段阿拉善牛的体尺指标均较低；阿拉善牛背部最长肌共检测到23种脂肪酸；阿拉善牛的二十碳五烯酸(EPA)极显著高于安格斯牛、夏洛莱牛和日本黑毛和牛(P < 0.01)；ω-3脂肪酸极显著高于日本黑毛和牛(P < 0.01),显著高于安格斯牛和夏洛莱牛(P < 0.05)；ω-6脂肪酸极显著高于夏洛莱牛(P < 0.01)。［结论］阿拉善牛富含优质的不饱和脂肪酸,可以作为我国开发优质牛肉产品的宝贵肉牛品种资源。

英文摘要:

      [Objective] Alxa cattle which is an important population of Mongolia Cattle, is a valuable genetic resource of beef cattle in China. In order to understand the growth and meat quality characteristics of Alxa cattle. [Methods] The body size indexes of 47 Alxa cattle were measured, and 37 fatty acids in longissimus dorsi muscle of 16 Alxa cattle and 13 control cattle were analyzed. [Result] The results showed that the body size index of Alxa cattle at all ages was low; 23 fatty acids were detected in longissimus dorsi muscle of Alxa cattle; Eicosapentaenoic acid (EPA) of Alxa cattle was significantly higher than that of Angus, Charolais and Japanese Black cattle (P < 0.01); ω- 3 fatty acids were significantly higher than those in Japanese Black cattle (P < 0.01) and Angus and Charolais cattle (P < 0.05); ω- 6 fatty acids were significantly higher than those in Charolais (P < 0.01). [Conclusion] Alxa cattle is rich in high-quality unsaturated fatty acids, which can be used as a valuable beef resource to develop high-quality beef products in China.