反刍动物剩余采食量在瘤胃功能上的差异和相关分子生物学机制  

Difference of Ruminant Residual Feed Intake in Rumen Function and Related Molecular Biological Mechanism

作　　者：和东迁 陶金忠[1] HE Dongqian;TAO Jinzhong(College of Agriculture,Ningxia University,Yinchuan 750021,China)

机构地区：[1]宁夏大学农学院,银川750021

出　　处：《动物营养学报》2021年第6期3125-3131,共7页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：宁夏重点研发一般项目(2019BEH03004)。

摘　　要：剩余采食量(RFI)已广泛用于测定各种家畜的饲料效率,通过实际采食量与预期采食量之差来衡量。瘤胃是反刍动物的主要消化器官,瘤胃微生物相对丰度和活性决定反刍动物的饲料效率。本文主要概述反刍动物瘤胃发酵参数、甲烷的排放、瘤胃微生物和瘤胃上皮细胞与RFI差异之间的关系,旨在明确瘤胃功能与反刍动物饲料利用效率之间的关系,为今后选育低RFI动物提供新的研究方向。Residual feed intake(RFI)has been widely used to measure the feed utilization efficiency of livestock,which is measured by the difference between actual feed intake and estimated feed intake.The rumen is the main digestive organ of ruminants.The relative abundance and activity of ruminant microorganisms determine the feed utilization efficiency of ruminants.This article mainly summarized the relationship between ruminant fermentation parameters,methane emission,the difference between rumen microbes,rumen epithelial cells and feed efficiency RFI,aiming to clarify the relationship between ruminant function and ruminant feed utilization efficiency and provide a new direction for breeding low-RFI animals in the future.

关 键 词：剩余采食量 反刍动物 瘤胃功能 机制 

分 类 号：S826[农业科学—畜牧学]