优良酵母菌株的分离和筛选  

Isolation and Screening of Fine Strains of Yeast

作　　者：刘晓辉[1] 张效川 辛小玲 白延琴 徐文华 蔡涛 辛亚平[7] 昝林森[7] 

机构地区：[1]天津市兽药饲料监察所,天津300210 [2]吴起县畜牧局,陕西吴起717600 [3]富平县畜牧兽医工作站,陕西富平711700 [4]子长县畜牧兽医局史家畔畜牧兽医站,陕西子长717300 [5]榆林市榆阳区牛家梁镇畜牧兽医工作站,陕西榆林719000 [6]渭南市畜牧技术推广中心,陕西渭南714000 [7]西北农林科技大学动物科技学院,陕西杨凌712100

出　　处：《家畜生态学报》2013年第1期49-52,共4页Journal of Domestic Animal Ecology

基　　金：国家863项目(2010AA10Z101;2011AA100307;2011ZX08007-002;2011KTCL02-11;2012BAD12B07);现代农业产业产业技术体系建设专项资金资助(CARS-38);陕西省农业攻关项目(2010K02-13)

摘　　要：试验采用麦芽浸粉培养基和秸秆粉培养基,利用平板划线法,从富含酵母菌的青贮饲料和酒糟饲料中分离出酵母菌,经过培养条件的优化,从中筛选出用作反刍动物饲用的优良酵母菌株。试验结果表明,从青贮玉米和大麦啤酒糟中分离得到9号菌株生物产量最高,OD值为2.231,为优良酵母菌株。The experiment adopted malt extract medium and straw powder medium, applied plate streaking method to isolate yeasts form silage and distiller soluble which are rich in yeasts, after optimizing the cultivating condition, the superior yeast strains for ruminant forage were isolated. The results showed that no. 9 strain isolated from silage and barley brewer＇s grain had the highest biological yield, and the OD value was 2. 231, which is a superior yeast strain.

关 键 词：酵母菌 青贮饲料 培养基 分离 筛选 

分 类 号：S811.6[农业科学—畜牧学]