Isolation and identification of Megasphaera elsdenii in cow rumen and effect on lactic fermentation奶牛瘤胃埃氏巨型球菌的分离鉴定及对乳酸发酵的影响
Constructing Megasphaera Elsdenii Mutants of Deleting Acetic Acid-Producing Key Enzyme Gene by Transposon Tagging Method利用转座子标签法构建埃氏巨型球菌乙酸生成关键酶基因缺失工程菌