反刍动物饲料组合效应的衡量指标及评估方法综述  

The Measurements and Methods for Evaluation of Associative Effects in Ruminants

作　　者：陈伟健[1,2] 王翀[2] 段智勇[2] 闫伟杰[2] 张显东[2] 刘建新[2] 

机构地区：[1]国家知识产权局专利局,北京100088 [2]浙江大学奶业科学研究所,浙江杭州310029

出　　处：《中国牛业科学》2011年第2期61-65,共5页China Cattle Science

摘　　要：反刍动物饲料间的组合效应的衡量指标一般包括:采食量,消化率和生长性能。研究组合效应尚无统一的标准方法,归纳现有的方法,主要可以分为动物试验、体内消化代谢试验和体外试验。三种组合效应的研究方法各有优缺点,我们可以根据试验目的和试验条件来选择合适的方法。本文分别从饲料间的组合效应、衡量指标及其研究方法等方面进行了综述,以供同行参考。Associative effects of feeds are the whole interactive effects among the nutrients,non-nutrients and anti-nutrients from different feeds resources.Because of the complexity of gastric digestion system and the wide range of feeds,associative effects are apparent in ruminants.Associative effects are the differences between the observed intakes,digestion or utilization of a mixture of feedstuffs with the predicted values expected from these feeds individually,and can be positive or negative.There are many methods that have been used to evaluate and predict associative effects.In vivo experiment includes determination of intake,potential digestibility,rate of digestion,fractional rumen outflow,efficiency of microbial production and productive performance of ruminants.In situ method（nylon bag technique） and in vitro gas production technique are widely used to determine in vitro digestibility,microbial mass and fermentation parameters.These methods have respective advantages and disadvantages,thus appropriate methods should be chosen according to the experimental objective and available conditions.This paper mainly proposed associative effects,measurements and research methods,and it can be as a reference for the colleagues

关 键 词：组合效应 衡量指标 反刍动物 

分 类 号：S815[农业科学—畜牧学]