Effects of temperature and lactic acid Bacteria additives on the quality and microbial community of wilted alfalfa silage

作者：Jingyi Liu, Muqier Zhao, Junfeng Hao, Xingquan Yan, Zhihui Fu, Na Zhu, Yushan Jia, Zhijun Wang, Gentu Ge · 发表于：BMC Plant Biology · 年份：2024 · DOI：10.1186/s12870-024-05501-x · 被引用次数：22 · 研究领域：Ruminant Nutrition and Digestive Physiology、Agriculture, Soil, Plant Science、Phytase and its Applications

This study investigated the influence of different temperatures (35℃ High temperature and average indoor ambient temperature of 25℃) and lactic acid bacterial additives (Lactiplantibacillus plantarym, Lentilactobacillus buchneri, or a combination of Lactiplantibacillus plantarym and Lentilactobacillus buchneri) on the chemical composition, fermentation quality, and microbial community of alfalfa silage feed. After a 60-day ensiling period, a significant interaction between temperature and additives was observed, affecting the dry matter (DM), crude protein (CP), acid detergent fiber (ADF), and neutral detergent fiber (NDF) of the silage feed (p < 0.05). Temperature had a highly significant impact on the pH value of the silage feed (p < 0.0001). However, the effect of temperature on lactic acid, acetic acid, propionic acid, and butyric acid was not significant (p > 0.05), while the inoculation of additives had a significant effect on lactic acid, acetic acid, and butyric acid (p > 0.05). As for the dynamic changes of microbial community after silage, the addition of three kinds of bacteria increased the abundance of lactobacillus. Among all treatment groups, the treatment group using complex bacteria had the best fermentation effect, indicating that the effect of complex lactic acid bacteria was better than that of single bacteria in high temperature fermentation. In summary, this study explained the effects of different temperatures and lactic acid bacterial additives on alfa...