Drug resistance and susceptibility testing of gram negative bacterial isolates from healthy cattle with different β – lactam resistance phenotypes from Shandong province China [Teste de resistência a drogas e suscetibilidade de isolados bacterianos gram negativos de bovinos saudáveis com diferentes fenótipos de resistência a β-lactâmicos da província de Shandong, China]
文献类型: 外文期刊
作者: Arbab S.; Ullah H.; Wei X.; Wang W.; Ahmad S.U.; Zhang J.
作者机构:
关键词: lactam; animal; bovine; drug resistance; Escherichia coli; Gram negative bacterium; phenotype; Animals; Cattle; Drug Resistance; Escherichia coli; Gram-Negative Bacteria; Lactams; Phenotype
期刊名称: Brazilian Journal of Biology
ISSN: 1519-6984
年卷期: 2023 年 83 卷
页码:
收录情况: 不在遴选数据库范围(2023版)
摘要: The objective of this study was to evaluate the effectiveness of common antibiotics against different microorganisms in apparently healthy cattle in Shandong province and its suburb. A total of 220 nasal swab samples were collected and cultured for bacteriological evaluation. All the bacteria isolates after preliminary identification were subjected to antibiogram studies following disc diffusion method. It was found in the study that E. coli is the most commonly associated isolate (21%), followed by Klebsiella spp. (18%), Pseudomonas aeruginosa (13%), Salmonella spp. (15%), Shigella spp (12%), and Proteus spp (11%). While the antibiogram studies reveled that highest number of bacterial isolates showed resistance to Ampicillin (95%), followed by Augmentin (91%), Cefuroxime (85%) and Tetracycline (95%) of (Escherichia coli and Klebsiella spp). In the case of pseudomonas spp. and Salmonella the highest resistance was showed by Ampicillin (90%) followed by Amoxicillin + Clavulanic Acid (80%), Cefixime (90%), and Erythromycin (80%). In Shigella spp and Salmonella spp highest resistance was showed by Amoxicillin, Ceftazidime, Augmentin (60%), and Amoxicillin + Clavulanic Acid (50%). It is concluded that in vitro antibiogram studies of bacterial isolates revealed higher resistance for Ampicillin, Augmentin, Cefuroxime, Cefixime, Tetracycline, Erythromycin, and Amoxicillin + Clavulanic Acid. The high multiple Antibiotics resistance indexes (MARI) observed in all the isolates in this study ranging from 0.6 to 0.9. MARI value of >0.2 is suggests multiple antibiotic resistant bacteria and indicate presence of highly resistant bacteria. © 2023, Instituto Internacional de Ecologia. All rights reserved.
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