Zur resistenz boviner und porciner pasteurellen gegenüber florfenicol und anderen antibiotika

Translated title of the contribution: Resistance of bovine and porcine pasteurella against florfenicol and other antibiotics

St Hörmansdorfer, J. Bauer

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

The resistance pattern of 221 (89 bovine, 132 porcine) pasteurella strains isolated in 1996 against 16 antibiotics or chemotherapeutics was determined by agar diffusion. Pasteurella haemolytica showed a higher level of resistance compared to Pasteurella multocida; porcine strains were more resistant than bovine strains. Over 90% of porcine Pasteurella multocida were sensible to penicillin G, ampicillin, cephalothin, polymyxin B, enrofloxacin, chloramphenicol and florfenicol. In addition, bovine strains were at least 90% sensible to oxacillin, erythromycin, gentamycin and sulfmethoxazole-trimethoprim. More than 90% of porcine Pasteurella haemolytica were classified as sensible to polymyxin B, enrofloxacin und florfenicol; bovine strains to cephalothin, neomycin und chloramphenicol as well. In 1996, 2 years after the chloramphenicol ban for food rendering animals, only 6.3% of bovine pasteurella strains proved to be resistant against chloramphenicol compared to a 16.27% fraction in 1994. The mean MIC-values of florfenicol against pasteurella spp. were nearly the same in bovine and porcine isolates with 0.53 μg/ml and 0.52 μg/ml respectively. Pasteurella haemolytica, however, showed higher MIC-values (0.68 μg/ml in bovine, 0.70 μg/ml in porcine isolates) than Pasteurella multocida with 0.47 μg/ml in bovine and 0.51 μg/ml in porcine strains. No isolate had a MIC of florfenicol greater than 1.0 μg/ml, all pasteurella strains were classified sensible to florfenicol.

Translated title of the contributionResistance of bovine and porcine pasteurella against florfenicol and other antibiotics
Original languageGerman
Pages (from-to)422-426
Number of pages5
JournalBerliner und Munchener Tierarztliche Wochenschrift
Volume111
Issue number11-12
StatePublished - Nov 1998

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