The effect of lactic acid bacterial starter culture and chemical additives on wilted rice straw silage
文献类型： 外文期刊
作者： Wang, Yan-Su 1 ; Shi, Wei 1 ; Huang, Lin-Ting 1 ; Ding, Cheng-Long 2 ; Dai, Chuan-Chao 1 ;
作者机构： 1.Nanjing Normal Univ, Coll Life Sci, Jiangsu Key Lab Mol & Med Biotechnol, Jiangsu Engn & Technol Res Ctr Ind Microbial Reso, Nanjing, Jiangsu, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Anim Sci, Nanjing, Jiangsu, Peoples R China
关键词： chemical additives;DGGE;lactic acid bacteria;silage;wilted rice straw
期刊名称：ANIMAL SCIENCE JOURNAL （ 影响因子：1.749； 五年影响因子：1.909 ）
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收录情况： SCI
摘要： Lactic acid bacteria (LAB) are suitable for rice straw silage fermentation, but have been studied rarely, and rice straw as raw material for ensiling is difficult because of its disadvantages, such as low nutrition for microbial activities and low abundances of natural populations of LAB. So we investigated the effect of application of LAB and chemical additives on the fermentation quality and microbial community of wilted rice straw silage. Treatment with chemical additives increased the concentrations of crude protein (CP), water soluble carbohydrate (WSC), acetic acid and lactic acid, reduced the concentrations of acid detergent fiber (ADF) and neutral detergent fiber (NDF), but did not effectively inhibit the growth of spoilage organisms. Inoculation with LABs did not improve the nutritional value of the silage because of poor growth of LABs in wilted rice straw. Inoculation with LAB and addition of chemical materials improved the quality of silage similar to the effects of addition of chemical materials alone. Growth of aerobic and facultatively anaerobic bacteria was inhibited by this mixed treatment and the LAB gradually dominated the microbial community. In summary, the fermentation quality of wilted rice straw silage had improved by addition of LAB and chemical materials.
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