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[Resistance pattern of bovine Pasteurella]

S Hörmansdorfer1, J Bauer

  • 1Lehrstuhl für Tierhygiene der Technischen Universität München.

Berliner Und Munchener Tierarztliche Wochenschrift
|May 1, 1996
PubMed
Summary

Florfenicol is highly effective against bovine Pasteurella strains, showing 100% sensitivity. Many strains exhibited resistance to common antibiotics like tylosin and streptomycin.

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Area of Science:

  • Veterinary Microbiology
  • Antimicrobial Resistance
  • Bacteriology

Context:

  • Bovine respiratory diseases are often caused by Pasteurella species.
  • Antibiotic resistance in veterinary pathogens is a growing concern.
  • Evaluating antimicrobial susceptibility is crucial for effective treatment strategies.

Purpose:

  • To assess the in vitro antimicrobial susceptibility of Pasteurella multocida and Pasteurella haemolytica strains isolated from cattle.
  • To compare the efficacy of florfenicol against other common antibiotics.

Summary:

  • 375 bovine Pasteurella strains (215 P. multocida, 160 P. haemolytica) were tested against 16 antimicrobials using agar diffusion.
  • High resistance rates were observed for oxacillin, tylosin, streptomycin, sulfonamides, and tetracycline.
  • Florfenicol demonstrated 100% efficacy, with low minimal inhibitory concentrations (0.25-1.0 µg/ml), while 16.27% of strains were resistant to chloramphenicol.

Impact:

  • Florfenicol represents a promising therapeutic option for bovine pasteurellosis, particularly in cases of resistance to other antibiotics.
  • Findings support the judicious use of florfenicol in cattle to combat antimicrobial resistance.
  • This study provides essential data for veterinary practitioners managing respiratory infections in cattle.

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