紫花苜蓿混合青贮研究进展

Research Progress on Mixed Silage of Medicago sativa

紫花苜蓿单独青贮品质不佳,混合青贮能够提高原料糖分含量,增加乳酸菌数量或抑制不良发酵,进而提高青贮发酵品质和养分含量。阐述了紫花苜蓿与禾本科牧草、谷物秸秆等进行混合青贮的研究现状,对乳酸菌、绿汁发酵液、纤维素酶、甲酸、蔗糖等添加剂在苜蓿青贮中的应用效果进行了概述,并探讨了抑制苜蓿青贮蛋白质降解的新技术手段,为调制优质苜蓿青贮饲料提供参考。

The quality of Medicago sativa silage alone was poor,but mixed silage could improve sugar content of raw material and increase the amount of lactic acid bacteria,and furthermore improve the fermentation quality and nutrients content.This paper described the research status of mixed silage of Medicago sativa and gramineous forage or corn straw,and summarized the application effects of silage additives of lactic acid bacteria,previously fermented j uices,cellulytic enzymes,formic acid and sucrose,etc.At last,new technology of inhibiting protein degradation of alfalfa silage was explored,so as to provide reference to modulation quality of alfalfa silage.