仔猪液体发酵饲料工艺的研制

发布时间：2018-02-22 20:08

  本文关键词： 液体发酵 混菌发酵 枯草芽孢杆菌 乳酸菌　出处：《饲料工业》2017年15期 　论文类型：期刊论文

【摘要】：为了制备仔猪液体微生物发酵饲料,利用枯草芽孢杆菌和乳酸菌对仔猪全价饲料进行发酵。通过单因素和正交试验,以发酵后饲料中还原糖含量作为发酵条件的优化指标。得出最佳发酵条件为:总接种量4%其中芽孢菌与乳酸菌各为2%,料水重量体积(W/V)比为13.5,发酵温度32~37℃。在条件37℃下发酵3 d,饲料含水量80%,还原糖含量达到2.17%提高10倍,乳酸含量3.4%,柠檬酸含量0.331%,丙酸含量0.130%,乳酸菌活菌数达到1010CFU/g。选取24头6.45 kg左右的健康仔猪,分2个处理组,每个组3个重复,对照组饲喂全价粉料,试验组饲喂添加50%发酵液态饲料。结果表明,与对照组相比,试验组平均日增重提高11.68%(P0.05),平均日采食量提高1.96%(P0.05),料肉比降低8.55%(P0.05),腹泻率下降54.88%。
[Abstract]:In order to prepare liquid microorganism fermented feed for piglets, Bacillus subtilis and lactic acid bacteria were used to ferment the whole feed of piglets. The optimum fermentation conditions were obtained as follows: the total inoculation amount was 4%, the ratio of feed to water weight and W / V was 13.5, and the fermentation temperature was 32 ~ 37 鈩，

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