| 配合饲料中消化能粗蛋白比对奶牛瘤胃发酵的影响 |
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| 引用本文： | 孙国强.配合饲料中消化能粗蛋白比对奶牛瘤胃发酵的影响[J].中国农学通报,2010,26(14):13-17. |
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| 作者姓名： | 孙国强 |
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| 作者单位： | 1. 青岛农业大学动物科技学院,山东青岛,266109
2. 青岛市畜牧兽医研究所,山东青岛,266100 |
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| 基金项目： | 公益性行业(农业)科研专项"原料奶质量在线控制与奶牛场智能化管理示范与推广"，山东省农业重大应用技术创新资金"奶牛精细饲养管理应用技术研究" |
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| 摘 要： | 旨在研究不同消化能粗蛋白比(DE/CP)对奶牛瘤胃发酵的影响。将奶牛常用饲料组合成5种配合饲料,其消化能粗蛋白比(DE/CP)分别为12.6、14.3、15.9、16.4和17.0,应用人工瘤胃技术研究不同DE/CP对瘤胃液pH、氨氮(NH3-N)质量百分数、微生物蛋白(MCP)产量和挥发性脂肪酸(VFA)质量百分数的影响。结果表明:不同DE/CP对瘤胃pH影响不显著(P0.05),而在NH3-N质量百分数、MCP产量和VFA质量百分数方面不同DE/CP间差异显著(P0.05)或极显著(P0.01)。结论:在此试验设计条件下,配合饲料DE/CP为15.9时最有利于奶牛瘤胃发酵。
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| 关 键 词： | 玉米 玉米 紧凑型 密度 行距 |
| 收稿时间： | 2/1/2010 12:00:00 AM |
| 修稿时间： | 2010/3/27 0:00:00 |
Effects of Digestible Energy-to-Crude Protein Ratio of Formula Feed on Dairy Cows Rumen Fermentation |
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| Cui Haijing,Wang Jianhua,Lü Yongyan,Cai Lifeng,Sun Guoqiang.Effects of Digestible Energy-to-Crude Protein Ratio of Formula Feed on Dairy Cows Rumen Fermentation[J].Chinese Agricultural Science Bulletin,2010,26(14):13-17. |
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| Authors: | Cui Haijing Wang Jianhua Lü Yongyan Cai Lifeng Sun Guoqiang |
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| Institution: | Cui Haijing 1,Wang Jianhua 2,Lü Yongyan 1,Cai Lifeng 1,Sun Guoqiang 1(1 College of Animal Science and Technology,Qingdao Agricultural University,Qingdao Shandong 266109,2 QingDao Animal Science and Veterinary Medicine Institute,Qingdao Shandong 266100) |
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| Abstract: | This study was proposed to investigate the effect of different DE/CP on rumen fermentation.5 mixtures were made of common feed for dairy cows ,their digestible energy-to-crude protein ratio（DE/CP） were 12.6 、 14.3 、 15.9 、 16.4 and 17.0 ,respectively,the effects of different DE/CP on pH,NH 3 -N concentration 、 MCPand VFA concentration were researched by short-term artificial rumen technique.The results： there were no significant influences in different DE/CP on rumen pH （ P 0.05 ） ,the significant effects occurred in different DE/CP on NH 3 -N concentration 、 MCP and VFA concentration.The conclusion： the formula feed in which ratio （DE/CP）was 15.9 was best for dairy cows rumen fermentation in this experiment. |
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| Keywords: | artificial rumen combination of feed rumen fermentation |
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