| 新疆褐牛与土黄牛不同部位肌纤维面积的比较 |
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| 引用本文： | 王金泉,马木尔·阿克木汗,蒙建菊,孙宗扬,姚刚. 新疆褐牛与土黄牛不同部位肌纤维面积的比较[J]. 中国农学通报, 2017, 33(20): 103-106 |
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| 作者姓名： | 王金泉 马木尔·阿克木汗 蒙建菊 孙宗扬 姚刚 |
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| 作者单位： | 新疆农业大学动物医学学院,新疆农业大学动物医学学院,新疆农业大学动物医学学院,新疆农业大学动物医学学院,新疆农业大学动物医学学院 |
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| 基金项目： | 国家自然科学基金“新疆褐牛与安格斯肉牛体脂代谢关键基因和产物时空表达的品种差异性及其与肉品质的相关性研究”(31460647)；基 础兽医学新疆维吾尔自治区重点学科科研启动项目“新疆褐牛肉品质形成机理的研究”(zdxk201501)；新疆维吾尔自治区科技计划项目“新疆肉牛新 品种（系）培育与杂交改良技术研究示范”(201230116-10)。 |
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| 摘 要： | 旨在比较新疆褐牛和土黄牛不同部位肌纤维面积的差异,为研究新疆褐牛肉质品质的形成提供组织形态学依据。选择同一饲养条件下2.5~3岁的健康新疆褐牛和土黄牛各3头进行屠宰,采集里脊、大黄瓜条、腱子肉、辣椒条、米龙、牛霖、上脑、臀肉、小黄瓜条、胸肉、眼肉等部位肌肉组织样品,采用冰冻组织切片技术,HE染色技术及Motic Images Advanced 3.2测量软件对肌纤维横截面积进行测定。结果显示:新疆褐牛的牛霖、小黄瓜条部位肌纤维平均横截面积显著小于土黄牛(P0.05);腱子肉、里脊、上脑、臀肉、胸肉部位肌纤维平均横截面积显著大于土黄牛(P0.05);其他部位肌纤维平均横截面积品种间无差异。新疆褐牛肌纤维平均横截面积与土黄牛肌纤维平均横截面积在不同部位差异不同。
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| 关 键 词： | 新疆褐牛 土黄牛 肌纤维面积 |
| 收稿时间： | 2016-08-03 |
| 修稿时间： | 2017-07-01 |
Cross-sectional Areas of Muscle Fibers in Different Parts of Xinjiang Brown Cattle and Local Yellow Cattle |
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| Abstract: | The study aims to compare the differences of muscle fiber area in different parts of Xinjiang brown cattle and local yellow cattle, and provide a basis for the studying the formation of meat quality of Xinjiang brown cattle. Three 2.5-3 year-old and healthy Xinjiang brown cattle and local yellow cattle under the same feeding conditions were selected to conduct the experiment, respectively. Muscle tissue samples were collected in tenderloin, silverside, sinew meat, chuck tender, topside, highrib, rump, cucumber, brisket, ribeye, etc. And the techniques of frozen tissue section, HE staining and Motic Image Advanced 3.2 software were used to measure the cross-sectional area of muscle fiber. The results showed that the average cross-sectional area of muscle fiber of topside and cucumber in Xinjiang brown cattle were significantly smaller than that in local yellow cattle (P <0.05). However, the average cross-sectional area of muscle fiber in sinew meat, tenderloin, highrib, rump and brisket in Xinjiang brown cattle were significantly bigger than that in local yellow cattle (P < 0.05). There was no difference in the average cross-sectional area of muscle fibers in other parts between Xinjiang brown cattle and local yellow cattle. In conclusion, cross-sectional areas of muscle fibers had diverse differences in different parts between Xinjiang brown cattle and local yellow cattle. |
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| Keywords: | Xinjiang brown cattle local yellow cattle muscle fiber |
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