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鸡肠黏膜乳酸菌的抗菌能力及其对抗菌素的药敏特性 被引量:2

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摘要 从肉鸡空肠黏膜上分离到6株菌,均为革兰氏阳性菌,其中3株乳杆菌(R2、R4、R6),3株肠球菌(R1、R3、R5)。生理生化鉴定表明,R2为嗜酸乳杆菌;R4为德氏乳杆菌乳亚种;R6为德氏乳杆菌德氏亚种;R1、R3和R5为粪肠球菌。产乳酸能力分析表明,培养至12h时R2产乳酸速度最快,到24h时R4产生乳酸浓度最高,为69.59mmol/L。在抑菌试验中,R2、R4对鸡大肠杆菌O1、鸡伤寒沙门氏菌O9和金黄色葡萄球菌的抑制作用显著高于其它菌株(P<0.05);药敏试验结果表明,R2和R4对治疗性抗菌素青霉素、四环素、卡那霉素、链霉素、万古霉素有较强的耐受性;对添加剂用抗菌素二硝托胺、硫酸多粘菌素、氨苯胂酸、杆菌肽锌的耐受性较强。
出处 《养殖与饲料》 2006年第3期11-14,共4页 Animals Breeding and Feed
基金 国家杰出青年科学基金项目(30025034)资助
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