奶牛营养需要标准

成年母牛维持营养需要体重日干粮奶牛能量产奶净能粗蛋白可消化粗小肠可消化钙磷胡萝卜维生素A（kg）物质（kg）单位（NND）（MJ）（g）蛋白（g）粗蛋白（g）(g)(g)素（mg）(国际单位)3505.029.1728.79374243202211637150004005.5510.1331.08413268224241842170004506.0611.0734.73451293244272048190005006.5611.9737.57488317264302253210005507.0412.8840.38524341284332558230006007.5213.7343.10559364303362764260006507.9814.5945.77594386322393069280007008.4415.4348.41628408340423274300007508.8916.2450.96661430358453479320001.对第一个泌乳期的维持需要按表下表基础增加20％，第二个泌乳期增加10％。2.如第一个泌乳期的年龄和体重过小，应按生长牛的需要计算实际增重的营养需要。3.上表没考虑到放牧运动能量消耗。4.在环境温度低的情况下，维持能量消耗增加，需在下表基础上增加需要量，按正文说明计算。5.泌乳期间，每增重1kg体重需要增加8NND和325gDCP；每减重1kg需扣除6.56NND和250gDCP。每产1kg奶的营养需要乳脂日粮干物质奶牛能量产奶净能粗蛋白质可消化小肠可消化钙磷率（％）进食量(kg)单位（NND）（MJ）（g）粗蛋白（g）粗蛋白质（g）(g)(g)2.50.31—0.350.802.516849423.62.43.00.34—0.380.872.727451443.92.63.50.37—0.410.932.938053464.22.84.00.40—0.451.003.148555474.53.04.50.43—0.491.063.358957494.83.25.00.46—0.521.133.529759515.13.45.50.49—0.551.193.7210261535.43.6母牛妊娠最后四个月每天的营养需要体重kg怀孕月份日粮干物质kg/d奶牛能量单位产奶净能MJ/d粗蛋白质可消化粗蛋白质g/d小肠可消化粗蛋白质g/d钙g/d磷g/d胡萝卜素mg/d维生素AIU/dNND/d（g）35065.7810.5132.974512932452718672776.2811.4435.9518327275312087.2313.1741.34629375317372298.715.8449.54777437370452540066.311.4735.994893182673020763076.8112.438.92557352297342287.7614.1344.36668400339402499.2216.852.72815462392482745066.8112.438.925283432873322863477.3213.3341.84595377317372488.2715.0747.28706425359432699.7317.7355.65854487412512950067.3113.3241.85653673073625953877.8214.2544.73632401337402788.7815.9950.177434493794629910.2418.6558.54891511432543255067.814.244.5660239132739271054278.3115.1347.49669425357432989.2616.8752.937804733994931910.7219.5361.3928535452573460068.2715.0747.2863741434642291144678.781650.21705448376463189.7317.7355.658154964185233911.220.464.02963558471603665068.7415.9249.9667143636545311245079.2516.8552.897384703954933810.2118.5958.338495184375535911.6721.2566.7997580490633870069.2216.7652.670545838348341335379.7117.6955.537724924135236810.6719.4360.978835404