反刍动物净能体系研究进展

Research progress of net energy system for ruminants

能量是动物维持生命活动及生长、繁殖以及生产所必需的营养。准确评估反刍动物能量需要量和饲料能量价值在反刍动物营养和生产中具有重要的实践意义。因此,笔者在比较不同能量评价体系特点的基础上,对不同方法测定的反刍动物净能以及饲料原料净能的研究进展进行总结分析,以期为净能体系在反刍动物生产中的应用提供参考。

Energy is the essential nutrient for maintaining animal life activities,growth,reproduction and performance. Accuracy evaluation of energy requirements and feed energy efficiency for ruminants has important practical significance in ruminant nutrition and production. Therefore,based on comparing the characteristics between different energy evaluation systems, the author summarized and analyzed the research progress of ruminant net energy and feedstuff net energy by different evaluation methods,in order to provide a reference for the application of net energy system in ruminant production.