中文摘要：

为了研究添加乳酸菌对赖草青贮饲料品质的影响，试验分别设置对照组、LAB1（2．5g／t）处理组、LAB2（5．0g／t）处理组，每个处理组重复3次，分析赖草青贮饲料的发酵品质和营养成分。结果表明：赖草直接青贮发酵品质较差；经乳酸菌处理后可显著降低pH值和提高乳酸含量（P〈0．05）。说明添加乳酸茵可有效地提高赖草青贮饲料的品质。

英文摘要：

To study the effect of the Lactic acid bacteria on the quality of Leymus secalinus silage. There were 3 treatment groups with 3 replicates each for silage modulation in the experiment, including the control group, LAB1 treatment group 1 （2.5 g/t） and LABI treatment group 2 （5.0 g/t）. The fermentation quality and nutritional components of Leymus secalinus silage were analyzed. The results showed that the silage quality of Leymus secalinus with direct fermentation was poor; the Lactic acid bacteria treatment could significantly reduce the pH value and improve the content of lactic acid （ P 〈0. 05 ） in the silage compared with CK, The results indicate that adding; Lactic acid bacteria to Leymus wecalinus can effectively improve the silage quality.