中国畜牧兽医2016，Vol.43Issue(9)：2302-2309,8.DOI:10.16431/j.cnki.1671-7236.2016.09.013
肉羊微生物固态发酵饲料组方筛选及翻料工艺的研究
Study on Formula Screening and Mixing Technology of Microbial Solid-state Fermentation Feed for Mutton Sheep
摘要
Abstract
The experiment was designed to develop a microorganism fermentation feed for mutton sheep,and determined its solid-state mixing technology.In this experiment,the wheat bran,rice bran and jujube fruit residues were chosen as the solid-state fermentation media,and combined the Saccharomyces cerevisiae strains BC,XR4 and Bacillus subtilis strain A15 as the fermentation strains.The DPS software was applied to design the uniform mixture experiment,and 8 formulas were selected for solid-state fermentation experiments,and evaluated the optimal formula by measuring the number of live bacterium and three kinds of nutritional active substances (β-glu-can,mannan and peptide).Meanwhile,we studied the mixing technology on the selected formula, and the control group was without turned mixing,the experimental group 1 was turned mixing once and the experimental group 2 was turned mixing twice.The optimal mixing technology was determined by monitoring the feed temperature,the number of live bacterium and the content of three kinds of nutritional active substances (β-glucan,mannan and peptides)during the solid-state fermentation.The results showed that the number of live bacterium of 8 formulas all increased first and then decreased rapidly.Three kinds of nutritional active substances were significantly increased with the extension of fermentation (P <0.05).The formula 7 had the optimal compre-hensive index,of which the living bacterium number reached 37.30×10 5 CFU/g and the contents of three nutrient active substances were 97.41 mg/100 mg,37.66 mg/100 mg and 20.17 μg/100 mg. In the mixing technology experiment,the number of live bacterium and nutritional active sub-stances of the experimental groups were significantly higher than the control group (P <0.05). Comparing with the control group,the number of live bacterium and the content of nutritional ac-tive substances in experimental group 2 increased by 10.1%,7.5%,7.6%,3.0%,respectively.关键词
肉羊/微生物固态发酵饲料/饲料组方/翻料工艺Key words
mutton sheep/microbial solid-state fermentation feed/feed formula/material mixing technology分类
农业科技引用本文复制引用
张立明,郭鹏,张政,张棋炜,刘大程..肉羊微生物固态发酵饲料组方筛选及翻料工艺的研究[J].中国畜牧兽医,2016,43(9):2302-2309,8.基金项目
国家自然科学基金项目(31260560) （31260560）
现代农业(奶牛)产业技术体系建设专项(CARS-37) （奶牛）
内蒙古科技厅专利转化项目(20140185) （20140185）
内蒙古农业大学科技成果转化项目(CGZH2013007) （CGZH2013007）
