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1、50-100kg育肥猪的饲料配方标准：Cp=14.5lys=0.7met=0.19ca=0.49p=0.17%CPCaAPLysMet玉米528.50.160.090.360.15大麦20130.040.210.440.14米糠1412.80.140.220.740.25菜籽粕538.60.650.351.30.63棉籽粕547.00.250.381.40.41花生粕447.80.270.331.40.41合计10017.66第二步，不考虑配合比例，将一个主要营养指标计算平衡。将CP配平：14.5-17.66=-3.16（多）所以，根据实际情况，选初配配方中花生粕调整CP,其余不考虑菜籽粕应减
2、少：3.16/38.6=8.18所以，根据实际情况，选初配配方中豆粕调整CP,其余不考虑豆粕应减少：158,18=6.28%CPCaAPLysMet玉米528.50.160.090.360.15大麦20130.040.210.440.14米糠1412.80.140.220.740.25菜籽粕538.60.650.351.30.63棉籽粕547.00.250.381.40.41花生粕2.945647.80.270.331.40.41合计98.945614.50.16380.16570.5550.1931可看出：Ca差=0.49-0.1638=0.3262AP差=0.17-0.1657=0.004
3、3Lys差=0.7-0.555=0.145Met差=0.19-0.1931=-0.0031配合比例差=100-98.9456=1.0544第三步，保持以计算平衡的指标不变，调整配比，使配合比例达到要求计算平衡Ca、AP、Lys、Meta先平衡P，CaHPO4.2H2O的用量0.0043/18=0.000239=0.0239%CaHPO4.2H2O中提供的Ca23.29*0.000239=0.00557%bCaCO3用量(0.3262-0.00557)/38.42=0.008345=0.8345%c用Lys-HCl平衡Lys，Lys-HCl用量0.145/(78.8*0.985)=0.00186
4、8=0.1868%a+b+c=1.0452%则配合比例差：1.0544-1.0452-1-0.3-0.02=-1.3108采取保证主要指标CP不变，将配比调整到符合要求，试选玉米、花生粕进行调整设玉米变化比例为x,花生粕变化比例为y8.5X+47.8Y=0X+Y=OY=0.2835%(增大X=-0.015943X=-1.5943%(减少)%CP玉米50.40578.5大麦2013米糠1412.8菜籽粕538.6棉籽粕547.0花生粕3.229147.8CaCO30.8345CaAPLysMet0.160.090.360.150.040.210.440.140.140.220.740.250.6
5、50.351.30.630.250.381.40.410.270.331.40.41CaHPO4.2H2O0.0239Lys-HCl0.1868NaCl0.3Vit0.02微量元素1合计10014.499980.489170.165330.740070.19385可看出Lys,P不符合要求重复第三步，平衡Lys,P减少Lys-HCl的量(0.74007-0.7)/(78.8X0.985)=0.000516=0.0516%CaHPO4.2H2O应增加的量(0.17-0.16533)/18=0.000259=0.0259%CaCO3的减少量(0.49-(0.48917-23X0.000259)/3
6、8.42=0.0001767=0.01767%配合比例变化-0.0516+0.0259-0.01767=-0.04337%(减少了)调整配合比例选玉米、菜籽粕进行调整，保持CP不变设玉米变化比例为x,菜籽粕变化比例为y8.5X+38.6Y=0X=0.0005577X=0.05577%（增加）X+Y=0.0004377Y=-0.000124Y=0.0124%（减少）清理配方%CPCa玉米50.461478.50.16大麦20130.04米糠1412.80.14菜籽粕4.987638.60.65棉籽粕547.00.25花生粕3.229147.80.27CaCO30.81683CaHPO4.2H2O
7、0.0498Lys-HCl0.1352NaCl0.3Vit0.02微量元素1合计10014.49990.48921APLysMetDE0.090.360.153.450.210.440.143.240.220.740.253.020.351.30.632.530.381.40.412.250.331.40.412.970.169850.701960.193853.15631因为DE=3.15631基本满足50-100Kg的瘦肉型育肥猪的生长需求所以此饲料配方满足要求。列出配方清单：玉米50.46147Cp=14.5大麦20Lys=0.7米糠14Met=0.19菜籽粕4.9876Ca=0.49棉籽粕5P=0.17花生粕3.2291DE=3.15%CaCO30.81683CaHPO4.2H2O0.0498Lys-HCl0.1352NaCl0.3Vit0.02何件口.-微量元素1主要营养指标（,MCal）
50到100公斤猪的饲料配方
