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奶牛粪中一般微生物的研究

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摘要 奶牛粪中微生物很丰富,根据细菌的种类、形态和大小,采用革兰氏染色后,直接镜检,测定细菌的数量。同时,制作培养基对细菌进行培养,鉴定细菌的种类,研究细菌的致病性。共测得细菌8类。其中大肠杆菌数达到1.38×107个/g,瘤胃球菌、产琥珀酸丝状杆菌、溶纤维丁酸弧菌数达到105个/g,芽孢杆菌、双歧杆菌、粪肠球菌、反刍兽甲烷短杆菌数达到106个/g。菌落的溶血性致病性试验结果表明所检测的八类菌都为非致病菌群。结果表明奶牛粪微生物含量很丰富,种类很多,大多数的菌落都为非致病菌,是有益菌群。
作者 格桑加措
出处 《湖南畜牧兽医》 2013年第3期10-12,共3页 Hunan Journal of Animal Science & Veterinary Medicine
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