复合益生菌发酵固体饲料条件研究  

Studies on Fermentation Conditions of Solid Feed with Composite Probiotics

作　　者：张翠绵[1] 贾楠[1] 胡栋[1] 王占武[1] 

机构地区：[1]河北省农林科学院遗传生理研究所,河北省植物转基因中心,河北石家庄050051

出　　处：《华北农学报》2013年第S1期270-274,共5页Acta Agriculturae Boreali-Sinica

基　　金：国家科技支撑计划项目(2012BAD14B07-06)

摘　　要：研究了由面包酵母、嗜酸乳杆菌和植物乳杆菌组成菌系发酵高纤维固体饲料的发酵条件,对在最佳条件下的发酵饲料进行了育肥猪饲喂试验。确定的最佳发酵条件为:3种微生物的菌量配比为1∶0.35∶0.35,固体物料起始pH值7.0,接种量3%,物料初始含水量50%,环境温度30℃,发酵周期72 h。在最佳发酵条件下,固体饲料中面包酵母菌、嗜酸乳杆菌和植物乳杆菌的活菌数量分别为5.67×107,1.31×109,8.06×108cfu/g,比市售菌剂发酵启动迅速,pH值下降快,发酵饲料酸香味浓郁,适口性强;用15%发酵饲料代替等量全价饲料饲喂育肥猪30 d,增重无显著性差异,试验猪只精神状态好,粪便成型,毛发光亮。The high nemaline feed solid fermentation conditions with Saccharomyces cerevisiae,Lactobacillus aci-dophilus and Lactobacillus plantarum as fermentation starter were studied and the feeding experenment were carried out on fattening pigs also .The optimum fermented condition were as follows:the ratio of Saccharomyces cerevisiae, Lactobacillus acidophilus and Lactobacillus plantarum was 1∶0.35∶0.35,the feed initial pH 7.0,the inoculation proportion 3%,initial water content 50%,environmental temperature 30 ℃ and fermentation period 72 h.Viable count of three kind of microorganisms in fermented feed prapared in optimum condionts were 1.31 ×109 ,8.06 × 10 8 ,5 .67 ×10 7 cfu/g respectively .Compared with other commercial fermentation starters ,the starter fermentates fas-ter,pH decreased quicker ,and the flavor ,palatability of the fermented feed were obviously improved .Feeding fatte-ning pigs with full nutrition feed which contain 15%the fermented feed for 30 days,the results shown that the daily gain of the pigs were not significance (P>0.05),and the experiment pigs shown better situation in psychosis ,dung molding and fur lighter .

关 键 词：复合益生菌 固体发酵 纤维饲料 

分 类 号：S816[农业科学—饲料科学]