微生物青贮添加剂菌种的优化  

The selection of strains of the silage

作　　者：李相前[1] 胥传来[1] 谢正军[1] 姚国[1] 

机构地区：[1]江南大学生物工程学院,江苏无锡214036

出　　处：《黑龙江畜牧兽医》2003年第12期7-9,共3页Heilongjiang Animal Science And veterinary Medicine

基　　金：国家"十五"科技重大专项资助 (2 0 0 2BA5 18A0 2 - 0 4 )

摘　　要：研究了乳酸菌与酵母菌的菌种特性 ,确定乳酸菌的最佳培养时间为 12h ,酵母菌为 1～ 2d ;乳酸菌的最适培养温度为 30℃ ,酵母菌为 2 8℃。试验还以秸秆为原料 ,进行了菌种复配、发酵 ,测定了产品的粗蛋白和粗纤维变化。确定了菌种的最佳工艺参数 :乳酸菌最佳添加量为 4 % ,乳酸菌∶酵母菌最佳配比为 1∶3。In this paper, the characteristics of lactobacillus and yeasts were studied. Besides, optimum culture period & temperature of bacteria were determined:Lactobacillus:12 h, 30 ℃,Yeasts:1～2 d, 28℃.At the same time, straw is used as experimental material. Through the tests of bacteria double crossing and fermentation, changes of crude protein and crude fibre were detected: finally, optimum parameters' are obtained:Lactobacillus supplement: 4%;Optimum ratio between lactobacillus and yeasts: 1∶3.

关 键 词：微生物青贮添加剂 菌种 复配 发酵 生产工艺 优化 乳酸菌 酵母菌 

分 类 号：S816.7[农业科学—饲料科学]