Effects of additives containing a novel strain on the fermentation characteristics, structural carbohydrates, and α-tocopherol content of rice straw and corn stover silages

作者：Qifeng Wu, Yu Xiao, Tao Shao, Cheng Zong, Mao Li, Qinhua Liu · 发表于：Chemical and Biological Technologies in Agriculture · 年份：2023 · DOI：10.1186/s40538-023-00382-y · 被引用次数：7 · 研究领域：Ruminant Nutrition and Digestive Physiology、Animal Nutrition and Physiology、Phytase and its Applications

Abstract A novel α-tocopherol-producing bacteria strain was isolated and identified as Bacillus tequilensis QH1 (QH1). The effects of QH1 strain inoculation alone (QH), combined with cell wall degradation enzyme (QC), or Lactiplantibacillus plantarum subsp. plantarum YM3 and cell wall degradation enzyme (QLC) as the additives on the fermentation characteristics, structural carbohydrates, and α-tocopherol content of rice straw and corn stover silages were investigated, and without additives as the control (CON), in 4 replicates. After silages were kept in a laboratory cabinet (26–34 ℃) and the dark for 42 d, experimental silos (polyethylene plastic bags) were opened for analysis. The results exhibited that the control and additives-treated rice straw and corn stover were ensiled well, indicated by high lactic acid content and little butyric acid content. The QH and QC degraded structural carbohydrates, demonstrated by lower ( P < 0.001) neutral detergent fiber (NDF) and acid detergent fiber (ADF) than the control, but did not enhance lactic acid fermentation, evidenced by lower ( P < 0.001) lactic acid content in QH-treated silages compared with the control silages. The effect of QLC on degrading structural carbohydrates was influenced by material factors, evidenced by no role in decreasing the contents of NDF and ADF in rice straw silage and a good role in decreasing the contents of NDF and ADF in corn stover silage. However, the water-soluble carbohydrate (WSC) content...