Anaerobic bacteria isolated from abscesses in pigs.

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Abstract
There were 141 strictly anaerobic bacteria cultured from 71 abscesses obtained from 69 pigs slaughtered at 2 abattoirs. Strictly anaerobic bacteria were recovered from 52 (73.2%) of the total abscesses. Fifteen (21.1%) abscesses yielded only 1 species and the remainder yielded mixtures of bacterial species of strict anaerobes and/or facultative anaerobes. Of the 141 strictly anaerobic isolates, the genus Bacteroides was most frequently isolated, being found in 61.9% of the total abscesses. The next frequently isolated genus was Fusobacterium, followed by Peptococcus, Peptostreptococcus, Propionibacterium and Eubacterium. Lactobacillus, Megasphaera, Clostridium, Bifidobacterium and Veillonella were uncommon. B. ruminicola/B. oralis group was the most frequently isolated species (41 abscesses, 57.7%) and was often found in company with Corynebacterium pyogenes and/or C. pseudopyogenes.