CHARACTERIZATION OF PASTEURELLA SPECIES ISOLATED FROM LUNGS OF CALVES WITH PNEUMONIA

  • 1 January 1985
    • journal article
    • research article
    • Vol. 49 (1), 63-67
Abstract
During routine bacteriological examination of pneumonic calf lungs, many Pasteurella multicoda-like isolates had a fermentation pattern different from what is generally accepted for P. multocida s.s. Of 50 strains selected for further investigation, 41 were phenotypically related and formed a group of indole-, mannitol- and sorbitol-negative P. multocida-like strains, which was tentatively disignated taxon 13. DNA/DNA hybridizations including both ornithine positive and ornithine negative strains of taxon 13 allowed the classification of the former as P. multocida biovar 6 and the latter as V factor independent strains of Haemophilus avium.