| 猪饲料添加剂复合菌种的筛选和特性研究 |
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| 引用本文： | 彭立强,谢云,任涛涛,陈五岭.猪饲料添加剂复合菌种的筛选和特性研究[J].饲料工业,2010,31(20). |
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| 作者姓名： | 彭立强 谢云 任涛涛 陈五岭 |
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| 作者单位： | 西北大学生命科学学院; |
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| 摘 要： | 根据微生态理论,文章选用嗜酸乳杆菌、纳豆芽孢杆菌、酿酒酵母作为制备复合微生物饲料添加剂的试验菌株。经一系列实验,结果表明:所选3种试验菌均能耐受0.3%的猪胆盐,对pH值为3.0的酸性环境也有较强的抵抗力,活菌数均在106CFU/ml以上;3种试验菌对人工胃肠液均有理想的耐受能力,能顺利通过胃、十二指肠到达小肠发挥作用,并能抑制猪体常见致病菌,是制备复合微生物饲料添加剂的优良菌种。
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| 关 键 词： | 微生物饲料添加剂 MTT比色法 人工胃液 人工肠液 |
Screening and studying on biological characteristics of composite strains of feed additive |
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| Peng Liqiang,Xie Yun,Ren Taotao,Chen Wuling.Screening and studying on biological characteristics of composite strains of feed additive[J].Feed Industry,2010,31(20). |
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| Authors: | Peng Liqiang Xie Yun Ren Taotao Chen Wuling |
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| Institution: | Peng Liqiang,Xie Yun,Ren Taotao,Chen Wuling |
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| Abstract: | According micro-ecological theory,Lactobacillus delbrueckii,Saccharomyces cerevisiae and Bacillus natto were used as strains of microbial forage additive. The results indicated that these three strains survived well both in 0.3% of pig bile salt and pH 3.0,and the living bacterial number could be above 106 CFU/ml. They have good tolerance to artificial gastric juice and artificial intestinal juice,and the survival rates of three strains were over 70% and 80% in two juices. Furthermore,their mixed zymotic fl... |
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| Keywords: | microbial forage additive MTT colorimetry artificial gastric juice artificial intestinal juice |
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