无抗仔猪饲料发酵工艺条件的研究  

Study on technological condition of antimicrobial-free fermenting piglet feed

作　　者：杨建松[1] 王露[1] 郭宏[2] 马鑫[2] 李昆[1] 王德培[1,3] 

机构地区：[1]天津科技大学生物工程学院,天津300457 [2]天津牧丰饲料有限公司,天津300380 [3]工业微生物教育部重点实验室,天津300457

出　　处：《饲料工业》2014年第5期32-35,共4页Feed Industry

基　　金：天津市科技支撑计划项目<微生物发酵无抗饲料的产业化技术>[12zczdnc01600]

摘　　要：为了制备仔猪生物活性饲料，利用枯草芽孢杆菌和乳酸菌对断奶仔猪饲料进行发酵。通过单因素和正交试验，以还原糖含量作为发酵条件的优化指标进行分析。最终得出最佳发酵条件为：外加水量为59％，接种量为8％，芽孢菌与乳酸茵的比例为3：1，发酵温度范围为20～42℃。按照优化条件37℃下发酵72h，测得还原糖含量为发酵前的3．24倍，能够制备出较好的仔猪发酵饲料。In order to produce bioactive feed of piglet,the feed was fermented by the strains mixture of ba- cillus subtilis and lactobacillus. The fermentation conditions were studied by single factor experiments and orthogonal experiments with the content of reducing sugar as the index. The optimal fermentation oper- ation parameters were obtained as follows： amount of water added 59%, total inoculum dose 8%, inoculum ratio of bacillus bacteria to lactobacillus 3：1, fermentation temperature 20-42 ℃. As those conditions and under fermentation temperature 37 ℃, the content of reducing sugar was 3.24 times higher than that of the unfermented feed after a 72 h fermentation process. So the better fermention feed of piglet can be produced.

关 键 词：混菌发酵 发酵饲料 枯草芽孢杆菌 乳酸杆菌 

分 类 号：S816.6[农业科学—饲料科学]