| 九龙藏黄牛乳蛋白的组成及遗传多态性研究 |
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| 引用本文： | 李玉萍,卢帮敏,金素钰,汤富彬,林亚秋,刘征鑫,郑玉才.九龙藏黄牛乳蛋白的组成及遗传多态性研究[J].中国畜牧兽医,2011,38(6):123-125. |
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| 作者姓名： | 李玉萍 卢帮敏 金素钰 汤富彬 林亚秋 刘征鑫 郑玉才 |
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| 作者单位： | 1. 西南民族大学生命科学与技术学院,四川成都 610041;2. 四川省九龙县农牧局,四川九龙 622000 |
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| 摘 要： | 本研究旨在了解生活在高海拔地区的藏黄牛乳的生化组成特点。试验测定了43头九龙藏黄牛乳蛋白含量、乳蛋白组成和酪蛋白多态性。藏黄牛乳蛋白含量低,仅约为29 g/L;电泳分析结果显示,脱脂乳蛋白组成与普通牛乳接近,主要包括酪蛋白、α-乳清蛋白和β-乳球蛋白等组分,β-Lg与α-La含量的比值低于牦牛;酪蛋白的相对含量约为70%,主要包含αs-CN和β-CN,二者分别检测到3和2种基因型。研究结果表明,九龙藏黄牛乳的组成与生活在类似生态环境中的九龙牦牛存在差异。
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| 关 键 词： | 藏黄牛 乳 遗传多态性 低氧 |
| 收稿时间： | 2010-12-01 |
Milk Composition and Protein Genetic Polymorphisms of Jiulong Tibetan Yellow Cattle |
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| LI Yu-ping,LU Bang-min,JIN Su-yu,TANG Fu-bin,LIN Ya-qiu,LIU Zheng-xin,ZHENG Yu-cai.Milk Composition and Protein Genetic Polymorphisms of Jiulong Tibetan Yellow Cattle[J].China Animal Husbandry & Veterinary Medicine,2011,38(6):123-125. |
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| Authors: | LI Yu-ping LU Bang-min JIN Su-yu TANG Fu-bin LIN Ya-qiu LIU Zheng-xin ZHENG Yu-cai |
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| Institution: | 1. College of Life Science and Technology,Southwest University for Nationalities,Chengdu 610041,China;2. Animal Husbandry Bureau of Jiulong County,Jiulong 622000,China |
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| Abstract: | The objective of present study was to reveal the biochemical characteristics of milk from Tibetan Yellow cattle at highlant,milk protein composition and casein polymorphisms. Tibetan Yellow cattle contains low protein content in minds. A total of 43 Tibetan Yellow cattle at Jiulong county of Sichuan province were used to assay milk protein contelk (only about 29 g/L);skim milk protein composition was similar to that of cow as revealed by electrophoresis. Main milk protein components include casein,α-lactalbumin,and β-lactoglobulin. The ratio of milk β-Lg to α-La content was lower that that of yak. The relative percentage of casein was approximately 70%,including αs-casein and β-casein. Three and two genotypes of αs-casein and β-casein were detected,respectively. Our results indicated that there was difference in milk composition between Jiulong Titetan Yellow cattle and Jiulong yaks that live in similar ecological environment. |
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| Keywords: | Tibetan Yellow cattle milk genetic polymorphism hypoxia |
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