Phylum Proteobacteria, Class Epsilonproteobacteria, Order Campylobacterales, Family Campylobacteraceae, Genus Campylobacter,
Campylobacter avium Rossi et al. 2009.
Gram-negative, spiral, 0.2-0.4 x 1-3 mm rods. Motile. Coccoid cells may appear after
4-5 days of incubation.
Colonies on Brucella sheep blood agar at 37 ºC after 48 h under microaerobic
conditions are flat, greyish and finely granular with an irregular edge and show a
tendency to spread along the direction of the streak and swarming. Nonhemolytic.
Microaerobic; no growth in aerobic or anaerobic conditions. Grow at 37 - 42 ºC, but not
at 25 ºC.
Most strains grow in the presence of 1% (w/v) bile. No growth occurs on nutrient agar
without blood, on MacConkey agar or in the presence of 1% (w/v) glycine or 2% (w/v)
Isolated from caecal contents of broiler chickens and a turkey.
Susceptible to nalidixic acid (30 mg) and resistant to cephalothin (30 mg) by disc diffusion tests.
- Mirko Rossi, Lies Debruyne, Renato Giulio Zanoni, Gerardo Manfreda, Joana Revez, and Peter Vandamme. Campylobacter
avium sp. nov., a hippurate-positive species isolated from poultry. Int J Syst Evol Microbiol September 2009 59:2364-2369.
Positive results for catalase (weak), oxidase, hippurate hydolysis, indoxyl acetate hydrolysis & nitrate reduction.
Negative results for urease, H2S production on TSI, gamma-glutamyltranspeptidase, alkaline phosphatase, selenite reduction,
triphenyl-tetrazolium chloride reduction. No carbohydrates fermentation.
(c) Costin Stoica