犬与鸡分离细菌抗生素耐药性比较研究

A. Victor, A. Samuel, D. Folashade
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引用次数: 1

摘要

抗生素耐药性的出现对人类和动物种群都造成了威胁。本研究旨在调查和比较从鸡和狗身上分离的细菌对抗生素的耐药性。对112份新鲜死鸡样本和89份病狗样本进行了分析。利用培养、形态和生化特征对纯培养菌株进行鉴定。体外采用标准纸片扩散法测定分离菌株对抗菌药物的敏感性。从鸡中分离出106株,从狗中分离出27株。分离的细菌包括大肠杆菌、嗜血杆菌、帕斯德氏菌、克雷伯氏菌、肠杆菌、沙门氏菌、葡萄球菌、微球菌、假单胞菌、变形杆菌和李斯特菌等。抗生素耐药性结果表明,革兰氏阴性菌对本研究使用的抗生素的耐药性高于革兰氏阳性菌。这一趋势在狗和鸡分离株中均有发现。同样,从鸡中分离出的细菌与从狗中分离出的细菌相比,表现出更大的耐药性。家禽中发现的抗性增强使家禽成为残留抗性基因的嫌疑人,并可能成为传播的宿主。
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Comparative study of antibiotic resistance in bacteria isolated from dog and chicken
The emergence of antibiotic resistance has caused a threat to both human and animal population. This research was designed to investigate and compare the antibiotic resistance of bacteria isolated from chicken and dogs. A hundred and twelve samples of freshly dead chicken and eighty nine blood samples of sick dogs were analyzed. Pure culture of isolates were identified using cultural, morphological and biochemical characteristic. In vitro, susceptibility of the identified isolates against antimicrobial agents were determined by the standard disk diffusion procedure. One hundred and six isolates were recovered from chicken while 27 isolates were recovered from dogs. The organisms isolated include E. coli, Haemophilus sp, Pasturella sp, Klebsiella sp, Enterobacter sp, Salmonella sp, Staphylococcus sp., Micrococcus sp., Pseudomonas sp, Proteus sp, and Listeria sp. The antibiotic resistance showed that, gram-negative bacteria showed more resistance to the antibiotics used in this research compare to the gram-positive bacteria. This trend was found in isolates from both dog and chicken. In like manner, the bacteria isolates recovered from chicken showed a greater resistance when compare with the bacteria isolates recovered from dog. The increased resistance found in poultry makes poultry a suspect of residual resistance gene and probably reservoir for transmission.
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