| 日粮阴阳离子差对奶牛的影响及其在生产实践中的应用研究进展 |
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| 引用本文： | 贾磊,王加启,卜登攀,张辉. 日粮阴阳离子差对奶牛的影响及其在生产实践中的应用研究进展[J]. 中国畜牧兽医, 2007, 34(7): 5-10 |
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| 作者姓名： | 贾磊 王加启 卜登攀 张辉 |
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| 作者单位： | 1．青海大学农牧学院，西宁 810003； 2．中国农业科学院北京畜牧兽医研究所动物营养学国家重点实验室， 北京 100094 |
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| 摘 要： | 阴阳离子差(DCAD)是指日粮中每千克或每百克干物质所含的主要阳离子（Na+、K+、Ca2+、Mg2+）毫摩尔数与主要阴离子（Cl-、S2-、PO3-4）毫摩尔数之差。DCAD直接影响奶牛血液的酸碱平衡及酶系统等的功能，可以改善奶牛的健康状况、提高奶牛生产性能。在此，作者综述了国内外关于调节日粮阴阳离子差对奶牛影响的研究结果及现状，探讨了DCAD在奶牛不同阶段生产实践中的应用。
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| 关 键 词： | 阴阳离子差 奶牛 生产性能 健康 |
| 文章编号： | 1671-7236（2007）07-0005-05 |
| 修稿时间： | 2007-04-02 |
The Research Advance of Effects of Dietary Cation-Anion Difference (DCAD) on Dairy Cows and the Application of DCAD to Practice |
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| JIA Lei,WANG Jia-qi,BU Deng-pan,ZHANG Hui. The Research Advance of Effects of Dietary Cation-Anion Difference (DCAD) on Dairy Cows and the Application of DCAD to Practice[J]. China Animal Husbandry & Veterinary Medicine, 2007, 34(7): 5-10 |
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| Authors: | JIA Lei WANG Jia-qi BU Deng-pan ZHANG Hui |
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| Affiliation: | 1.College of Agriculture and Animal Husbandry, Qinghai University, Xining 810003, China; 2.Institute of Animal Science, Chinese Academy of Agricultural Science State Key Laboratory of Animal Nutrition, Beijing 10094, China |
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| Abstract: | Dietary Cation-Anion Difference(DCAD) is defined as the sum milliequivalents of(Na K)-(Cl S) per kilogram or per hundred gram of dry matter.DCAD has straight effects on blood acid-base balance and enzyme system's function of dairy cows,and it can improve on the dairy cows' health status and increase the milk performance.This report summarized the study result and current actuality about altering DCAD has effect on dairy cows,and discussed DCAD's application on practice in dairy cows' different period. |
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| Keywords: | Dietary Cation-Anion Difference(DCAD) dairy cow milk performance health |
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