Effect of Bacillus amyloliquefaciens and Bacillus subtilis on fermentation, dynamics of bacterial community and their functional shifts of whole-plant corn silage

• DOI: 10.1186/s40104-021-00649-0
• Publication Date: 2022-01-07T00:04:17Z
• Authors: Jie Bai; Marcia Franco; Zitong Ding; Lin Hao; Wencan Ke; Musen Wang; Dongmei Xie; Ziqian Li; Yixin Zhang; Lin Ai; Xusheng Guo
• Keywords: Silage; Bacillus amyloliquefaciens

Bacillus amyloliquefaciens (BA) and subtilis (BS) are usually used as feed supplements directly or bacterial inoculants in biological feeds for animals. However, few research have reported the effects of BA BS on fermentation characteristics community successions whole-plant corn silage during ensiling. If positive silages, then they could not only improve characteristics, but also deliver viable cells to ruminants, which would play its probiotic effect. Therefore, objectives this study were investigate fermentation, chemical their metabolic pathway silage.Freshly chopped was inoculated without with BS, respectively, ensiled 1, 3, 7, 14 60 d. Results showed that inoculations increased lactic acid concentrations silages compared control, inoculation decreased acetic concentrations, whereas fiber contents crude protein (CP) content. Higher water-soluble carbohydrate lower starch observed BA- BS-inoculated control. The CP content non-protein nitrogen BA-inoculated silage, consistent higher amino metabolism abundances silage. In addition, it noteworthy cofactors vitamins, relative drug resistance: antimicrobial pathways. We found pathways clearly separated into three clusters based ensiling times present study. There no significant differences compositions among groups undesirable bacteria such Acetobacter Acinetobacter.Our findings suggested strain more suitable than