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Prevalence and Antimicrobial Resistance Pattern of Salmonella Isolates from Apparently Healthy Slaughtered Cattle in Ethiopia

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Abstract

The prevalence and antimicrobial resistance pattern of Salmonella isolates was determined from apparently healthy slaughtered cattle at Debre Zeit (Ethiopia). A total of 323 cattle were examined for the presence of Salmonella in faeces, mesenteric lymph nodes, abdominal and diaphragmatic muscles. Salmonellae were cultured from 23 (7.1%) of the animals. Salmonellae were isolated from 2 (3.1%) and 3 (4.5%) of 65 pooled faecal and mesenteric lymph node samples, respectively. Nine (2.8%) abdominal muscle and 10 (3.1%) diaphragmatic muscle samples (n = 323 of each) were contaminated by Salmonella. About 60% of the serovars identified in the abdominal and diaphragmatic muscles were also detected from faeces and mesenteric lymph node samples. The five different serovars isolated were Salmonella mishmarhaemek (48%), S. typhimurium (20%), S. enteritidis (12%), S. guildford (12%) and S. dublin (48%). The antimicrobial resistance profiles of 25 of the Salmonella isolates with 17 antimicrobials showed that 52% (13/25) of them were resistant to three or more antimicrobials. Both strains of Salmonella (S. mishmarhaemek and S. typhimurium) showed multiple resistance to ampicillin, sulfamethoxazole and ticarcillin.

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Authors and Affiliations

  1. Department of Microbiology, Infectious Diseases and Veterinary Public Health, Faculty of Veterinary Medicine, Addis Ababa University, Debre Zeit, Ethiopia

    D. Alemayehu & B. Molla

  2. OIE Reference Laboratory for Salmonellosis, Health Canada Laboratory for Foodborne Zoonoses, Ontario, Canada

    A. Muckle

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  1. D. Alemayehu
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  2. B. Molla
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  3. A. Muckle
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Alemayehu, D., Molla, B. & Muckle, A. Prevalence and Antimicrobial Resistance Pattern of Salmonella Isolates from Apparently Healthy Slaughtered Cattle in Ethiopia. Tropical Animal Health and Production 35, 309–319 (2003). https://doi.org/10.1023/A:1025189204496

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  • DOI: https://doi.org/10.1023/A:1025189204496

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