Changes in the microbial community are closely related to the fermentation of silage. However, how host genetic variation shapes the community structure of the silage microbiota and its metabolic phenotype is poorly understood. The objective of present study was to evaluate the effects of the application of the homo-fermentative Lactobacillus plantarum and hetero-fermentative Lactobacillus buchneri strains to lucerne silage on the fermentation characteristics, aerobic stability, and microbial community and their correlations. The three silages treated with L. plantarum or L. buchneri were well preserved and had significantly lower pH values, butyric acid, propionic acid, and ammonia-N concentrations, and significantly higher residual water-soluble carbohydrate, dry matter and lactic acid contents than the controls. The treated groups had more lactic acid bacteria and lower quantities of other bacteria in their microbial communities. Inoculation of lactic acid bacteria influenced the abundances of other bacteria and controlled the silage fermentation characteristics. L. buchneri inhibited the abundance of Enterobacter_ludwigii to increase the crude protein content, L. plantarum improve the neutral detergent fibre content by affecting the abundance of Arthrobacter_sp._Ens13. In conclusion, the application of L. plantarum and L. buchneri improved the quality of lucerne silage fermentation, and L. buchneri resulted in greater improvements after aerobic exposure.

中文翻译：

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更正：添加植物乳杆菌和布氏乳杆菌对苜蓿青贮发酵、细菌群落和需氧稳定性的影响

微生物群落的变化与青贮饲料的发酵密切相关。然而，宿主遗传变异如何塑造青贮微生物群落的群落结构及其代谢表型却知之甚少。本研究的目的是评估将同型发酵植物乳杆菌和异型发酵布氏乳杆菌菌株应用于苜蓿青贮对发酵特性、需氧稳定性和微生物群落及其相关性的影响。用植物乳杆菌或布氏乳杆菌处理的三种青贮饲料保存完好，pH 值、丁酸、丙酸和氨氮浓度显着降低，残留水溶性碳水化合物、干物质和乳酸含量显着高于控件。治疗组的微生物群落中乳酸菌较多，其他细菌数量较少。乳酸菌的接种影响了其他细菌的丰度并控制了青贮发酵特性。L. buchneri 抑制 Enterobacter_ludwigii 的丰度以增加粗蛋白含量，L. plantarum 通过影响 Arthrobacter_sp._Ens13 的丰度提高中性洗涤纤维含量。综上所述，L. plantarum 和 L. buchneri 的应用提高了苜蓿青贮发酵的质量，而 L. buchneri 在有氧暴露后得到了更大的改善。乳酸菌的接种影响了其他细菌的丰度并控制了青贮发酵特性。L. buchneri 抑制 Enterobacter_ludwigii 的丰度以增加粗蛋白含量，L. plantarum 通过影响 Arthrobacter_sp._Ens13 的丰度提高中性洗涤纤维含量。综上所述，L. plantarum 和 L. buchneri 的应用提高了苜蓿青贮发酵的质量，而 L. buchneri 在有氧暴露后得到了更大的改善。乳酸菌的接种影响了其他细菌的丰度并控制了青贮发酵特性。L. buchneri 抑制 Enterobacter_ludwigii 的丰度以增加粗蛋白含量，L. plantarum 通过影响 Arthrobacter_sp._Ens13 的丰度提高中性洗涤纤维含量。综上所述，L. plantarum 和 L. buchneri 的应用提高了苜蓿青贮发酵的质量，而 L. buchneri 在有氧暴露后得到了更大的改善。