The present study was conducted to investigate the prevalence, biochemical properties and plasmid profiles of Salmonella organisms isolated from wild birds in Daegu area during the period from May, 1999 to August, 2000. Twenty strains of Salmonella were identified from 192 samples of heron feces and 86 samples of pigeon feces. Among Salmonella isolates, S. montevideo were the most frequent serotype (16 strains), 3 strains of them were S. typhimurium and the other one was untypable.
The biochemical properties of 20 strains of Salmonella isolated were in accordance with the traditional characteristics of Salmonella spp. in the majority of biochemical test such as IMViC, carbohydrate fermentation and amino acid decarboxylation.
The majority of isolates were highly susceptible to amikacin, ampicillin, amoxicillin, carbenicillin, cephalothin, ciprofloxacine, chloramphenicol, enrofloxacin, furazolidone, gentamicin, kanamycin, nalidixic acid, polymixin B and sulfamethoxazole, while they were moderately susceptible to streptomycin and tetracyclin. However, the majority of them were highly resistant to nitrofurantoin.
In plasmid profile, 21.1 kilobase (Kb), 20 Kb and 13.2 Kb fractions were common to three S. tvphimurium and one untypable strains, and no fraction was shown in all strains of S. montevideo.
|