| 泌乳后期奶牛干物质及部分营养需要研究 |
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| 引用本文： | 张峰,吴占军,张新同,王昆,马书林,王学清,刘小虎.泌乳后期奶牛干物质及部分营养需要研究[J].天津农业科学,2011,17(2):54-56,63. |
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| 作者姓名： | 张峰 吴占军 张新同 王昆 马书林 王学清 刘小虎 |
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| 作者单位： | 河北省农林科学院粮油作物研究所河北省农林科学院奶牛研究中心,河北石家庄,050031 |
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| 基金项目： | 河北省财政专项资助项目 |
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| 摘 要： | 选择15头中国荷斯坦奶牛,随机分成三组,研究河北农区泌乳后期奶牛干物质及部分营养需求模型。结果表明:泌乳后期奶牛干物质采食量DM(kg)=0.0685W0.75+0.45(0.4×M+15×fat);所需产奶净能NE(LkJ)=376.45W0.75+3138×(0.4×M+15×fat)+ΔW×25100;可消化蛋白质DCP(g)=3.44W0.75+M×CP%/0.6+ΔW×325;各项指标略高于中国奶牛饲养标准(NY/T34-2004)。
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| 关 键 词： | 河北农区 奶牛 泌乳后期 营养需要 |
Study on Dry Matter and Nutritonal Requirement of Late Lacation Dairy Cows |
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| ZHANG Feng,WU Zhan-jun,ZHANG Xin-tong,WANG Kun,MA Shu-lin,WANG Xue-qing,LIU Xiao-hu.Study on Dry Matter and Nutritonal Requirement of Late Lacation Dairy Cows[J].Tianjin Agricultural Sciences,2011,17(2):54-56,63. |
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| Authors: | ZHANG Feng WU Zhan-jun ZHANG Xin-tong WANG Kun MA Shu-lin WANG Xue-qing LIU Xiao-hu |
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| Institution: | (Dairy Cattle Research Centers of Hebei Academy Agriculture and Forestry Science,Institute of Cereal and Oil Crops,Hebei Academy of Agriculture and Forestry Science,Shijiazhuang,Hebei 050031,China) |
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| Abstract: | In order to study dry matter and nutritional requirement of late lacation dairy cows in the agricultural region of Hebei province,fifteen dairy cows were divided randonly into three groups.Results indicated that DM（kg）=0.068 5W0.75＋0.45（0.4×M＋15×fat）;NEL（kJ）=376.45 W0.75＋3 138×（0.4×M＋15×fat）＋ΔW×25 100;DCP（g）=3.44W0.75＋M×CP%/0.6＋ΔW×325.The requirement of DM,NEL,DCP increasted compared with feeding standard of dairy cattle（NY/T34-2004）. |
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| Keywords: | agricultural region of Hebei province dairy cows late lacation nutritional requirement |
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