Whole-herd optimization with the Cornell Net Carbohydrate and Protein System. II. Allocating homegrown feeds across the herd for optimum nutrient use.
Whole-herd optimization with the Cornell Net Carbohydrate and Protein System. II. Allocating homegrown feeds across the herd for optimum nutrient use.
复制标题
使用康奈尔净碳水化合物和蛋白质系统进行全牛群优化。
DOI：
--
复制
发表时间：
2000
影响因子：
3.5
通讯作者：
L. Tedeschi
中科院分区：
文献类型：
--
作者：
S. J. Wang;D. Fox;D. Cherney;L. Chase;L. Tedeschi
本文的目的是开发一个线性优化程序，用于在整个牛群中分配自产饲料，以优化整个农场营养管理规划中营养物质的使用。第一步是通过康奈尔净碳水化合物和蛋白质系统（CNCPS）开发的线性规划（LP）程序为每组开发最佳饮食。将每组的信息（饲料生物学价值、营养需求、动物和环境因素、营养排泄和最佳饮食）导出到整个农场工作表中，其中使用另一个LP程序通过满足每个动物组的设定要求来优化自产作物的分配，同时优化饲料成本和营养排泄限制的回报。一个样本评估显示了如何使用这个模型来减少N，P，和K排泄改变喂养策略，同时保持饲料成本的回报。
The objective of this paper was to develop a linear optimization procedure for allocating homegrown feeds across the herd to optimize use of their nutrients in whole farm nutrient management planning. The first step involved developing an optimal diet for each group by a linear programming (LP) procedure developed for the Cornell Net Carbohydrate and Protein System (CNCPS). Information (feed biological values, nutrient requirements, animal and environmental factors, nutrient excretion, and the optimal diet) for each group was exported to a whole farm worksheet, where another LP procedure was used to optimize the allocation of homegrown crops by satisfying the set requirements of each animal group while optimizing return over feed costs and nutrient excretion constraints. A sample evaluation shows how this model was used to reduce N, P, and K excretion by changing feeding strategies while maintaining return over feed costs.