African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5233

Full Length Research Paper

Antibiotic resistance trend of Staphylococcus aureus isolated between 2010 and 2012 from mastitis cases in Azawak zebu in Niger

Abdoulkarim Issa Ibrahim*
  • Abdoulkarim Issa Ibrahim*
  • 1. Bacteriology, Department of Infectious and Parasitic Diseases, Faculty of Veterinary Medicine, University of Liège, Sart-Tilman, B43a, B-4000 Liège, Belgium; 2. Bacteriology, Department of Diagnosis, Epidemiological Investigations and Applied Research, BP 485, Niamey, Niger.
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Jean-Noël Duprez
  • Jean-Noël Duprez
  • Bacteriology, Department of Infectious and Parasitic Diseases, Faculty of Veterinary Medicine, University of Liège, Sart-Tilman, B43a, B-4000 Liège, Belgium
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Rianatou Bada-Alambedji
  • Rianatou Bada-Alambedji
  • Microbiology, Immunology and Infectious Pathology, Interstate school of Veterinary Science and Medicine, BP 5077, Dakar, Senegal
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Nassim Moula
  • Nassim Moula
  • Department of Animal Production, Faculty of Veterinary Medicine, University of Liege, Boulevard de Colonster, 20, building B43, 4000 Liege, Belgium
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Jacques G. Mainil
  • Jacques G. Mainil
  • Bacteriology, Department of Infectious and Parasitic Diseases, Faculty of Veterinary Medicine, University of Liège, Sart-Tilman, B43a, B-4000 Liège, Belgium
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and Marjorie Bardiau
  • and Marjorie Bardiau
  • Bacteriology, Department of Infectious and Parasitic Diseases, Faculty of Veterinary Medicine, University of Liège, Sart-Tilman, B43a, B-4000 Liège, Belgium
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  •  Received: 07 July 2014
  •  Accepted: 22 August 2014
  •  Published: 27 August 2014

Abstract

The present study was conducted at the Sahelian Experimental Station in Toukounous Niger, on three herds of Azawak zebu breed in order to evaluate antimicrobial susceptibility of a total of 43 Staphylococcus aureus isolated from 164 milk samples of cows with subclinical mastitis from 2010 to 2012. The highest frequency of resistance was observed for the β-lactam family: penicillin (46%) followed by oxacillin (12%). Twenty isolates were sensitive to all tested antibiotics, 12 were resistant to one of them and 11 were multi-resistant (2 to 5 antibiotics). The resistance percentage to oxacillin, enrofloxacin and clindamycin varied significantly over the 3 years (p <0.05) but not to the other antibiotics. Moreover, 90% of S. aureus isolates resistant to penicillin detected by in vitro disk diffusion possessed the blaZ gene. In conclusion, the isolates from cases of mastitis at Toukounous are more resistant to the antibiotics frequently used for treatments at the station than to other antibiotics.

Key words: Mastitis, Staphylococcus aureus, antibiotic resistance, Azawak zebu, Niger.

Copyright © 2024 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

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