浙江大学学报（农业与生命科学版）2026，Vol.52Issue(4)：539-547,597,10.DOI:10.3785/j.issn.1008-9209.2025.11.111
奶牛对农作物秸秆饲料利用效率的差异及其机制
Variability in utilization efficiency of crop straw for dairy cattle and its underlying mechanisms
摘要
Abstract
Straw resources represent a significant potential source of roughage for dairy cattle in China.Efficient exploitation of these resources can reduce production costs and improve efficiency,thereby alleviating pressure on feed supplies for the dairy industry.In practical production,considerable interindividual variation exists among cows in their ability to utilize straw-based diets,manifesting in measures such as digestibility and feed conversion efficiency.Elucidation of the underlying mechanisms that drive these differences is essential for improving straw utilization and optimizing feed resource use.This review provides a systematic overview of the gastrointestinal and metabolic processes by which dairy cattle utilize crop residues and synthesizes evidence on the biological bases of individual variation in utilization efficiency at multiple levels.The analysis offers theoretical insights and practical recommendations to support the effective incorporation of crop residues into dairy rations.关键词
饲料效率/粗饲料/瘤胃微生物/消化率/奶牛Key words
feed efficiency/roughage/rumen microbiome/digestibility/dairy cattle分类
农业科技引用本文复制引用
孙一苇,顾凤飞,刘建新..奶牛对农作物秸秆饲料利用效率的差异及其机制[J].浙江大学学报（农业与生命科学版）,2026,52(4):539-547,597,10.基金项目
国家自然科学基金区域创新发展联合基金重点项目(U23A20231). （U23A20231）
