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Dynamics of the fermentation quality and microbiotsa in Ephedra sinica treated native grass silage

文献类型： 外文期刊

作者： Du, Shuai 1 ; You, Sihan 2 ; Jiang, Xiaowei 3 ; Li, Yuyu 2 ; Jia, Yushan 2 ;

作者机构： 1.Zhejiang Univ, Inst Feed Sci,Minist Agr & Rural Affairs, Minist Educ,Key Lab Anim Nutr & Feed Sci Zhejiang, Key Lab Anim Nutr & Feed,Key Lab Mol Nutr,Natl En, Hangzhou, Peoples R China

2.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm,Minist Agr, Key Lab Grassland Resources,Minist Educ, Key Lab Forage Cultivat Proc & High Efficient Uti, Hohhot, Peoples R China

3.Chinese Acad Agr Sci, Inst Grassland Res, Hohhot, Peoples R China

关键词： bacterial community; Ephedra sinica; fermentation quality; native grass

期刊名称：JOURNAL OF APPLIED MICROBIOLOGY （ 影响因子：4.059； 五年影响因子：4.439 ）

ISSN： 1364-5072

年卷期： 2022 年 133 卷 6 期

页码：

收录情况： SCI

摘要： Aims This study aimed to evaluate the effects of Ephedra sinica on physicochemical characteristics and bacterial community of ensiled native grass by multiple physicochemical analyses combined with high-throughput sequencing. Methods and Results Treatments were a control treatment with no additive (CON), E. sinica was added at 1% (CEa1), 3% (CEa2), and 5% of the fresh materials (CEa3). Compared to the CON group, the dry matter and water-soluble carbohydrate contents were significantly (p < 0.05) decreased in the CEa1 group. Compared to the CON group, the pH was significantly (p < 0.05) decreased in E. sinica treated silages, and a higher lactic acid content was observed in E. sinica treated silages. At the genus level, the abundance of Enterococcus, Lactobacillus, Pediococcus, and Weissella were the predominant member in the CON, CEa1, CEa2, and CEa3 groups, respectively. The abundance of Lactobacillus was significantly (p < 0.05) increased in the CEa1 group and Pediococcus was significantly (p < 0.05) increased in the CEa2 group. According to the 16S rRNA gene-predicted functional profiles, the inoculation of E. sinica accelerated the carbohydrate metabolism. Conclusions In summary, the addition of E. sinica could improve the silage quality of native grass by regulating the bacterial community, and the addition of a 1% percentage of fresh materials exhibited the potential possibility of responding to get high-quality native grass silages. Significance and Impact of the Study The utilization of herbal additives on fermentation quality combined with 16S rRNA gene-predicted functional analyses will contribute to the direction of future research in improving silage quality.

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