肉鸡营养参数及环境因素对生产性能数学函数模型的研究

THE STUDY ON THE FUNCTION MODEL WITH MAIN NUTRITIVE AND ENVIRONMENTAL FACTORS IN BROILER

采用二次回归通用旋转组合设计的方法对肉鸡生产的主要营养参数、环境因素进行数学函数模型的研究，探讨了代谢能、含硫氨基酸和饲养密度对肉鸡增重的效应以及其相互效应，为肉鸡增重最佳饲养管理措施组合方案和最优化生产条件提供依据。研究得出肉鸡主要营养参数及环境条件对肉鸡增重的数学函数模型为：Ｙ＝１５５２７８＋１６９８Ｘ１＋４１１６Ｘ２＋５４８０Ｘ３＋０５１Ｘ１Ｘ２－１１６９Ｘ１Ｘ３－９６１Ｘ２Ｘ３－２４３８Ｘ２１－５３６Ｘ２２＋４９７２Ｘ２３。

 study was conducted with AA broiler to establish a regression production model based on the main factors of nutrition and environment with the second order regression current rotation design, The relationship between weight gain and level of energy (ME) and S-amino acids (S-AA) in diet and density was analysed to put forward the best programme of feeding and management for broiler production The model is: Y=1 55278+1698 X1+4116 X2-5480 X3+051 X1X2-1169 X1X3-961X2X3-2438X21-536X22+4972X23The order of contribution of the factors to the broiler performance is density >S-AA>ME