草业学报2017，Vol.26Issue(11)：77-84,8.DOI:10.11686/cyxb2017145
5株优良抑菌活性乳酸菌对全株玉米青贮品质的影响
Effect of 5 strains of Lactic acid bacteria with antibacterial activity on the corn silage quality
摘要
Abstract
To investigate the effect of lactic acid bacteria (LAB) with antibacterial activity on the quality of corn silage during ensiling,and screen LAB inoculant that could improve the quality of silage,5 strains of LAB (B1-7,B2-3,B3-1,B5-2,E2-3) isolated from corn silage across Gansu province were added to make corn silage,the contents of dry matter (DM),crude protein (CP),water soluble carbohydrates (WSC),neutral detergent fiber (NDF),acid detergent fiber (ADF),ammonia nitrogen (NH3-N),lactic acid (LA),acetic acid (AA),propionic acid (PA) and butyric acid (BA) were analyzed.Results showed that for silage at 30 days,the content of DM,CP,ADF and LA was significantly increased in 5 LAB strains treatment groups compared with the control group,and the content of NH3-N and WSC was decreased.The NDF content in silage inoculated with the B3-1 LAB strain was significantly higher than the control (P＜0.05),with the other 4 LAB strains being intermediate,while the content of AA in B3-1 and B5-2 treated silages was significantly higher than the control but not the other 3 treatment groups.Along with the fermentation time the content of dry matter,crude protein,water soluble carbohydrates in silages of each group was decreased and the content of ADF,NDF and NH3-N increased.Overall,the silages inoculated with the B3-1 strain showed best fermentation quality and nutritive value characteristics.These results indicated that all added LAB strains improved the quality of silage,with Lactobacillus plantarum B3-1 being the most effective.关键词
全株玉米/营养品质/植物乳杆菌B3-1/发酵品质Key words
whole corn/silage quality/Lactobacillus plantarum B3-1/ferment quality引用本文复制引用
雷赵民,王建福,吴建平,何轶群,吴润,姜辉,万学瑞..5株优良抑菌活性乳酸菌对全株玉米青贮品质的影响[J].草业学报,2017,26(11):77-84,8.基金项目
甘肃省农业生物技术研究与应用开发项目(GNSW.2012-25),农业部公益性行业科研专项(20130305907),兰州市科技局科技计划项目(农业科技攻关 （GNSW.2012-25）
2012-2-159),农业部公益性行业科研专项(201503134),甘肃省科技重大专项(143NKDC017),甘肃省农牧厅秸秆饲料化利用研究专项([2016]269号)和甘肃省科技重大专项“肉牛高效生态营养技术体系研究与示范”(17ZD2NC020)资助. （201503134）
