Research Progress in the Effects of Additives to Silage on Microbial Diversity

doi:10.13560/j.cnki.biotech.bull.1985.2021-0818

Abstract

Abstract:

Ensiling of forage is a very complex process of microbial activities and biochemical changes. The quality of silage crops depends on the microbial community during the early phase of fermentation and its succession in the fermentation process. Additives play an important role to change the microbial diversity and to enhance the silage quality. They improve the fermentation quality and aerobic stability mainly by promoting the rapid fermentation of lactic acid bacteria and other dominant bacteria,consequently reducing the pH,and creating an acidic environment to inhibit the growth and reproduction of spoilage microorganisms. The current paper is aimed to review the effects of lactic acid bacteria,chemical,enzymatic and nutritional additives on the microbial community structure of silage,aiming to provide best references for studying the mechanism of microbial actions during the fermentation process of silage,and directional research and development of silage additives in the future.

Key words: silage, additives, microbial diversity

XIN Ya-fen, CHEN Chen, ZENG Tai-ru, DU Zhao-chang, NI Hao-ran, ZHONG Yi-hao, TAN Xiao-ping, YAN Yan-hong. Research Progress in the Effects of Additives to Silage on Microbial Diversity[J]. Biotechnology Bulletin, 2021, 37(9): 24-30.

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