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Antimicrobial resistance of Salmonella isolated from finishing swine and the environment of 60 Alberta swine farms
- Source :
- Veterinary microbiology. 104(3-4)
- Publication Year :
- 2004
-
Abstract
- The study objective was to describe and evaluate antimicrobial resistance profiles in Salmonella isolated from Alberta swine finishing farms. Salmonella isolates (n = 322) were obtained from 192 fecal and 84 environmental samples of the 60 Salmonella-positive swine finishing farms. Isolates were classified susceptible, intermediate or resistant based on NCCLS guidelines. More than half of the isolates (53.4%) were susceptible to all of the 18 antimicrobials in the testing panel. No resistance was observed to amikacin, amoxicillin/clavulanic acid, cefoxitin, ceftiofur, ceftriaxone, cephalothin, ciprofloxacin, imipenem or nalidixic acid. Less than 1% of isolates were resistant to apramycin, gentamicin and trimethoprim/sulfamethoxazole. Higher frequencies of resistance were observed for chloramphenicol (4.7%), ampicillin (7.8%), kanamycin (11.8%), sulfamethoxazole (21.1%), streptomycin (25.5%) and tetracycline (38.8%). Eleven Salmonella serovars had isolates with resistance to 3 antimicrobials. The most frequently resistant serovar was Salmonella Derby, with 27 (38.0%) isolates resistant to 3 antimicrobials, including resistance to five and six antimicrobials. An absence of resistance to cephalosporins and fluoroquniolones and a low proportion of isolates resistant to amikacin, amoxicillin/clavulanic acid, apramycin, gentamicin and trimethoprim/sulfamethoxazole are encouraging findings from public health and animal health perspectives. Frequent resistance observed for ampicillin, kanamycin, sulfamethoxazole, streptomycin and tetracycline, antimicrobials commonly used in veterinary medicine for decades, indicates an urgent need to utilize these antimicrobials more prudently if their benefits are to be preserved. Crown Copyright # 2004 Published by Elsevier B.V. All rights reserved.
- Subjects :
- Salmonella
Veterinary medicine
Swine
Colony Count, Microbial
Microbial Sensitivity Tests
Biology
medicine.disease_cause
Apramycin
Microbiology
Alberta
Feces
Antibiotic resistance
Clavulanic acid
Drug Resistance, Multiple, Bacterial
medicine
Animals
Swine Diseases
Salmonella Infections, Animal
General Veterinary
Sulfamethoxazole
General Medicine
biochemical phenomena, metabolism, and nutrition
Trimethoprim
Anti-Bacterial Agents
Ciprofloxacin
Amikacin
medicine.drug
Subjects
Details
- ISSN :
- 03781135
- Volume :
- 104
- Issue :
- 3-4
- Database :
- OpenAIRE
- Journal :
- Veterinary microbiology
- Accession number :
- edsair.doi.dedup.....fa39041b31176f1fedaf2e3895b79d06