不同营养组合对南美白对虾生长性能的影响

对南美白对虾营养组合进行综合研究．试验采用均匀设计法，经过42d的试验，在相同基础日粮中分别添加不同的营养组合，其中有蛋白质（X1）、植物油（X2）、胆固醇（X3）、维生素＋胆碱（X4）、矿物质（X5），建立了多元二次多项式回归模型，并利用SAS软件在计算机上拟合回归模型，用求极值方法给出了南美白对虾营养平衡的最优配方，求得各个因素与相对体重及体长增长的回归方程．

Effects of Different Nutritions Combination on the Growth of Penaeus vananmei

By using even design method,the growth situation of Penaeus vananmei feeded daily food with same basic components for 42 days was comprehensively studied,during which the different nourishment combination including the protein(X_1),vegetable oil(X_2),cholesterol(X_3),vitamin choline(X_4) and minerals(X_5) were used in the daily food of the same foundation.A multi-quadratic polynomial regression model was established and mimicked with SAS software on the computer.The optimal nutritional components for Penaeus vananmei were obtained with the method of solving extremum,and the regression equations about relationship between each factor and the increases of the Penaeus vananmei's weight and length were given.