Dynamics of a microbial community during ensiling and upon aerobic exposure in lactic acid bacteria inoculation-treated and untreated barley silages

文献类型： 外文期刊

第一作者： Liu, Beiyi

作者： Liu, Beiyi;Huan, Hailin;Gu, Hongru;Xu, Nengxiang;Ding, Chenlong;Liu, Beiyi;Huan, Hailin;Gu, Hongru;Xu, Nengxiang;Ding, Chenlong;Shen, Qin

作者机构：

关键词： Barley silage; Microbial community; Fermentation; High-throughput sequencing; Lactic acid bacteria

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）

ISSN： 0960-8524

年卷期： 2019 年 273 卷

页码：

收录情况： SCI

摘要： This study investigated the effects of lactic acid bacteria on bacterial and fungal community during the fermentation process and aerobic exposure phase of barley ensiled with preparation of lactic acid bacteria (LAB). The inoculated silages displayed higher contents of lactic acid, acetic acid, and propionic acid as well as a greater number of lactic acid bacteria during ensiling. LAB-treated silage decreased the bacterial diversity during both ensiling and aerobic exposure but increased the fungal diversity during ensiling of barley. LAB-treated silage during ensiling increased the abundance of Lactobacillus but decreased that of Weissella. After aerobic exposure, LAB-treated silage increased the abundance of Lactobacillus but decreased that of Acinetobacter. Acinetobacter, Enterococcus, Providencia, and Empedobacter were the dominant bacteria after aerobic exposure. In conclusion, LAB-treated silage enhanced the number of desirable Lactobacillus and inhibited the growth of undesirable microorganisms, such as Acinetobacter.

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