奶牛采食调控理论与干物质采食量模型研究现状和分析

被引:3
作者
杨琴
熊本海
韩英东
杨亮
机构
[1] 中国农业科学院北京畜牧兽医研究所动物营养学国家重点实验室
关键词
奶牛; 干物质采食量; 调控理论; 模型;
D O I
暂无
中图分类号
S823 [牛];
学科分类号
0905 ;
摘要
对奶牛采食调控机理进行分析不仅有助于理解影响采食量的因素,同时也能为构建与发展奶牛干物质采食量模型奠定基础。本文在探究奶牛采食调控理论的基础上,总结了国际上近20年来构建的奶牛干物质采食量模型,主要包括经验模型、机理模型及半机理模型,深入分析了一些典型模型构建的背景、特点及它们之间的相互关系。目前,干物质采食量预测仍是以经验模型为主,而机理模型虽然参数比较复杂且不易获得,但是作为机理调控的量化描述有重要的研究意义,半机理模型综合了机理模型及经验模型的各自特点,反映了模型发展的新趋势,但具体预测效果还需要进一步验证。本文通过对干物质采食量模型进行总结与分析,为开展适合我国奶牛干物质采食量模型研究提供了新思路。
引用
收藏
页码:34 / 42
页数:9
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