| 日粮ADF/CP对奶牛瘤胃内环境的影响 |
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| 引用本文： | 吕永艳,崔海净,蔡李逢,孙国强.日粮ADF/CP对奶牛瘤胃内环境的影响[J].中国饲料,2011(20). |
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| 作者姓名： | 吕永艳 崔海净 蔡李逢 孙国强 |
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| 作者单位： | 青岛农业太学动物科技学院 |
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| 基金项目： | 山东省农业重大应用技术创新课题“奶牛精细饲养管理应用技术研究” |
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| 摘 要： | 为探讨日粮酸性洗涤纤维与粗蛋白比(ADF/CP)对奶牛瘤胃内环境的影响,将奶牛常用饲料配合成ADF/CP为1.3、1.4、1.5、1.7和1.9的五种日粮,应用短期人工瘤胃技术,测定瘤胃液pH、氨氮(NH3-N)浓度、微生物蛋白(MCP)产量和挥发性脂肪酸(VFA)浓度,研究不同ADF/CP对奶牛瘤胃内环境的影响。结果表明:不同ADF/CP对瘤胃pH影响不显著(P>0.05);而在NH3-N浓度上ADF/CP为1.4组低于ADF/CP为1.5、1.7和1.9组(P<0.01),与1.3组差异不显著(P>0.05);在MCP产量上ADF/CP为1.4和1.5两个组极显著高于其他三个组(P<0.01),而两个组间差异不显著(P>0.05);在VFA浓度方面上ADF/CP为1.4组显著或极显著高于其他组(P<0.05或P<0.01),在乙酸丙酸比上各组间差异不显著(P>0.05)。综上:在本试验设计条件下,日粮ADF/CP为1.4时最有利于奶牛瘤胃内环境。
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| 关 键 词： | 人工瘤胃 酸性洗涤纤维与粗蛋白比 瘤胃内环境 |
Effects of the ratio of acid detergent fiber and crude protein in diets on ruminal environment |
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| Institution: | Lü Yongyan,Cui Haijing,Cai Lifeng,et al. |
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| Abstract: | The study was conducted by using short-term artificial rumen technique to investigate the effects of different ADF/CP(acid detergent fiber-to-crude protein ratio)on ruminal environment by determining pH,NH3-N(Ammonia nitrogen)concentration,(microbial crude protein MCP)and(volatile fatty acid VFA)concentration.The diet for dairy cows were combinated by ADF/CP of which were 1.3,1.4,1.5,1.7 and 1.9,respectively.The results showed that:there were no significant influence in different ADF/CP on rumen pH(P > 0.05... |
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| Keywords: | artificial rumen ADF-to-CP ratio ruminal environment |
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