Antimicrobial resistance in Enterococcus spp. isolated from laying hens of backyard poultry floks
| Autor: | Valentina Virginia Ebani, Claudia Salvadori, Annalisa Moni, Domenico Cerri, Paolo Mani, Fabrizio Bertelloni |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
hobby poultry
medicine.drug_class Streptogramin Drug resistance Microbial Sensitivity Tests Biology Microbiology lcsh:Agriculture Antibiotic resistance cloacal swabs Cloaca Ampicillin Drug Resistance Multiple Bacterial medicine Animals antimicrobial resistance Waste Management and Disposal Enterococcus spp Ecology Evolution Behavior and Systematics lcsh:Environmental sciences Enterococcus spp laying hens antimicrobial resistance cloacal swabs hobby poultry lcsh:GE1-350 Lincosamides laying hens Public Health Environmental and Occupational Health lcsh:S biochemical phenomena metabolism and nutrition Antimicrobial Anti-Bacterial Agents Italy Vancomycin Female Flock Chickens Enterococcus medicine.drug |
| Zdroj: | Annals of Agricultural and Environmental Medicine, Vol 22, Iss 4, Pp 665-669 (2015) |
| ISSN: | 1898-2263 |
| Popis: | [b]Introduction and objective[/b]. Enterococci belonging to human and animal gastrointestinal flora are widely-distributed in the environment. They are opportunistic bacteria that can cause severe infections, with the ability to acquire, express and transfer antimicrobial resistance. The aim of the present study was to investigate antimicrobial resistance profiles of [i]Enterococcus[/i] spp. strains isolated from cloacal swabs of laying hens of small backyard flocks. [b]Materials and methods[/b]. Susceptibility to 21 antimicrobial agents was tested by the disc diffusion method in 115 [i]Enterococcus[/i] spp. strains. Vancomycin and ampicillin minimum inhibitory concentrations and high-level aminoglycoside resistance tests were also performed. [b]Results. [/b]Isolates showed resistance mainly to aminoglycosides, eritromycin, fluoroquinoles, tetracycline and nitrofurantoin. 19 (16.5%) isolates showed a high level of resistance to streptomycin, but no high level resistance to gentamycin. No significant resistance was detected for vancomycin. Several strains (45; 39.1%) showed combined resistance to macrolides, lincosamides and streptogramin B. 61 (53%) isolates were classified as multidrug-resistant (MDR) and 6 (5.2%) strains as possibly extensively drug-resistant (XDR). [i]E. faecium[/i] was the most prevalent antimicrobial resistant species, followed by [i]E. faecalis[/i] and [i]E. durans[/i]. [b]Conclusions.[/b] The results show that the risk of dissemination of antimicrobial resistant enterococci is related not only to the birds of large commercial flocks, but also to the birds of small backyard flocks. Thus, laying hens of hobby flocks, which share the outside environment with people, could represent a hazard for public health by providing a conduit for the entrance of resistance genes into the community. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|