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Enterococci from rabbits - potential feed additive

Author

Listed:
  • M. Simonová

    (Institute of Animal Physiology, Slovak Academy of Sciences, Košice, Slovak Republic)

  • A. Lauková

    (Institute of Animal Physiology, Slovak Academy of Sciences, Košice, Slovak Republic)

  • I. Štyriak

    (Institute of Animal Physiology, Slovak Academy of Sciences, Košice, Slovak Republic)

Abstract

Enterococci (58) from faeces of rabbits of various age (from 2 months to 3 years) and 5 different rabbit farms were isolated and tested for survival in the presence of oxgall, lactic acid production, urease activity, resistance to low pH as well as their binding ability was tested. Fifty percent of enterococcal isolates were identified as Enterococcus faecium, 19% as E. faecalis. All strains showed good survival in the presence of 5% oxgall. The urease activity of isolates was in the range from 0.013 to 17.13 nkat/ml, only E. faecalis EE229 strain did not produce any urease. The survival of strains was tested at pH 3.0 and the percentage of their survival ranged between 62.0% and 90.0%. E. faecium EF1819 strain was found to show the best survival ability at low pH. Particle agglutination assay values of selected enterococci expressed only negative (0) or weakly positive (1) binding of heparin, bovine fibrinogen, porcine fibronectin and lactoferrin. Based on the results, most of the selected enterococci could be promising probiotic feed additives.

Suggested Citation

  • M. Simonová & A. Lauková & I. Štyriak, 2005. "Enterococci from rabbits - potential feed additive," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 50(9), pages 416-421.
    • Handle: RePEc:caa:jnlcjs:v:50:y:2005:i:9:id:4221-cjas
    DOI: 10.17221/4221-CJAS
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