| 摘要: |
| 目前饲料工业中采用的最低成本配方是以满足一定生产水平下的动物营养需要为基础,设定适当的约束条件,以单位饲料成本最低为目标函数,借助电脑,筛选出的最优配方。但单位饲料成本最低并不必然意味着饲养业的收益最大。就饲料配方而言,最大收益可一般地简化为生产单位畜产品的饲料费用最低。本文以产蛋鸡的饲料配方为例,讨论了最大收益配方的数学模型,目标函数、约束因子或约束条件,以及输出信息的设定等;并以电脑计算结果,说明其应用意义。 |
| 关键词: 饲料配方 最优配方 目标函数 最低成本 约束条件 产蛋鸡 成本配方 饲料费 营养成分 最大收益 |
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| Abstract: |
| Least cost formulation program,through properly setting constraints, will provide anoptimumfeed formula with all the nutrient requiremen- ts met and the costs per unit of feed lowest.Least costs per unit of feed, however,does not necessarily mean maximum profit in animal produ- ction.As for feed formulation,maximum profitcan be simplified as least feed costs for unit animal product(s)converted. With layer feed formulation as an example,the objective function,con- straints,outputs as well as the mathematical... |
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