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反刍动物饲料碳水化合物和蛋白质组分划分及消化道代谢规律

  • 潘晓花 ,
  • 杨亮 ,
  • 杨琴 ,
  • 熊本海
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  • 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, 北京 100193

收稿日期: 2013-11-15

  网络出版日期: 2014-05-05

基金资助

973计划课题(2011CB100805);基本科研业务费(2013ywf-zd-3);863计划课题(2012AA101905)

Division of Carbohydrate and Protein Fractions in Feed for Ruminants and Their Metabolism in Digestive Tract

  • PAN Xiaohua ,
  • YANG Liang ,
  • YANG Qin ,
  • XIONG Benhai
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  • State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China

Received date: 2013-11-15

  Online published: 2014-05-05

摘要

饲料养分的绝大部分是碳水化合物和蛋白质,其营养价值的准确评定及其在瘤胃内代谢规律的精细化研究对发展反刍动物的精细饲养具有重要意义,目前在国际上受到广泛关注和应用的美国康奈尔净碳水化合物和蛋白质体系(Cornell Net Carbohydrate and Protein System,CNCPS)是一种反刍动物饲料营养价值评定的重要方法,但在国内实际生产中尚未广泛应用。本文系统地概述了CNCPS中碳水化合物和蛋白质各组分的划分及其变化,并通过列举常用饲料各组分的含量和变化范围及计算公式等,全面揭示了不同类型饲料中碳水化合物及蛋白质组分的含量特性及其差异的原因,以及瘤胃降解速率(Kd)及食糜流通速率(Kp)的变化规律;同时比较了CNCPS与传统饲料养分划分体系的联系与区别。

本文引用格式

潘晓花 , 杨亮 , 杨琴 , 熊本海 . 反刍动物饲料碳水化合物和蛋白质组分划分及消化道代谢规律[J]. 动物营养学报, 2014 , 26(5) : 1134 -1144 . DOI: 10.3969/j.issn.1006-267x.2014.05.002

Abstract

Carbohydrate and protein account for the most of feed nutrients, and accurate assessment of their nutritional values and ruminal metabolism become more and more significant. Cornell Net Carbohydrate and Protein System(CNCPS)as an important method to evaluate feeds nutritional values, has not been widely used in ruminant production in China. This paper systematically reviewed the division of carbohydrate and protein fractions in CNCPS and their changes, as well as revealed the diversity of carbohydrate and protein fractions in different feedstuffs and variation of rumen degradation rate (Kd) and passage rate (Kp). The relationship and difference between CNCPS system and other assessment systems were also reviewed.

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