青贮饲料中微生物及乳酸菌特性初步研究  

The Characteristics of Microorganisms and Lactic Acid Bacteria in Silage

作　　者：段宇珩[1] 谈重芳[1] 王雁萍[1] 秦广雍[1] 霍裕平[1] 蔡义民 

机构地区：[1]郑州大学物理工程学院,离子束生物工程省重点实验室,河南郑州450052 [2]日本畜产草地研究所,枥木县那须郡日本329-2793

出　　处：《河南农业科学》2008年第6期111-113,124,共4页Journal of Henan Agricultural Sciences

基　　金：国家“十五”科技攻关项目资助课题(2001BA302B-03)

摘　　要：分析青贮饲料中微生物的种类和数量,从中分离鉴定了22株乳酸菌,并研究了这些乳酸菌的特性。结果表明:分离株都是革兰氏阳性、过氧化氢酶阴性和兼性厌氧菌。根据所分离到的乳酸菌的形态学和生理生化特性,这些乳酸菌可被分为6组(A-F)。经表型分类鉴定,A组、B组、C组和D组为典型的乳杆菌属(Lactobacillus)。E组属于肠球菌属(Enterococcus)。F组为明串珠菌属(Leuconostoc)。青贮饲料中的大多数乳酸菌为乳杆菌属(Lactobacillus),占总数的79%以上。The microorganisms of silage was analyzed,from which 22 strains of lactic acid bacteria （LAB） were isolated and their characteristics were studied. The result showed that all the isolates were Gram-positive, catalase negative and facultatively anaerobic bacteria. These LAB isolates were divided into six groups （A--F） according to their morphological and biochemical characters. The strains of group A, B, C and D belong to the cluster of genus Lactobacillus. The group E strain was clearly identified asEnterococcus. The group F strains were placed in Leuconostoc cluster. The majority of groups of LAB in silage isolates belong to the genera Lactobacillus,accounting for 79%.

关 键 词：青贮饲料 微生物 乳酸菌 

分 类 号：S816.53[农业科学—饲料科学]