Resistance and virulence distribution in enterococci isolated from broilers reared in two farming systems

Detalhes bibliográficos
Autor(a) principal: Semedo-Lemsaddek, Teresa
Data de Publicação: 2021
Outros Autores: Cota, João, Ribeiro, Tânia, Pimentel, Amélia, Tavares, Luis, Bernardo, Fernando, Oliveira, Manuela
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/22473
Resumo: Research Areas: Veterinary Sciences
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spelling Resistance and virulence distribution in enterococci isolated from broilers reared in two farming systemsAntimicrobial resistanceEnterococcusBroilersResistance genesVirulence genesFarming systemResearch Areas: Veterinary SciencesBackground: The impact of enterococci in human health has been growing for the last decades, mainly due to their resistance to several antimicrobial agents. Human consumption of contaminated meat, especially poultry, has been identified as a possible route of transmission. The aim of the present study was to evaluate and compare the antimicrobial resistance profiles and virulence genes of enterococci isolated from Portuguese conventional and free-range broiler farms. Results: Antibiotic susceptibility testing showed high frequencies of resistance to tetracycline in both farming systems. Resistance to erythromycin and gentamicin were detected in about half of the isolates. Resistance to penicillin was the less frequently observed and no vancomycin resistant isolates were identified. The majority of the enterococcal isolates, from either farming systems, were resistant to more than one antibiotic, and no statistical associations were found, except for penicillin resistance which associated with the genetic clusters. No differences were found between farming systems regarding the prevalence of tet(M), erm(B), aac (6′)-Ie-aph (2″)-Ia and pbp5 genes, nevertheless pbp5 prevalence was associated with the different genetic clusters. Hemolytic activity was identified in 26.47% of all isolates and gelatinase activity in 50%. The gelE gene was identified in the majority of the isolates, whereas esp and agg genes were rarely detected. The cylA determinant was not detected in any of the isolates. Conclusions: Overall, results suggest that similar resistance patterns and virulence genes can be found in both farming systems, though enterococci in free-range conditions should be less prone to acquire further resistance genes.BMCRepositório da Universidade de LisboaSemedo-Lemsaddek, TeresaCota, JoãoRibeiro, TâniaPimentel, AméliaTavares, LuisBernardo, FernandoOliveira, Manuela2021-11-03T12:26:06Z2021-08-202021-08-20T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/22473engSemedo-Lemsaddek T, Cota JB, Ribeiro T, Pimentel A, Tavares L, Bernardo F Oliveira M. 2021. Resistance and virulence distribution in enterococci isolated from broilers reared in two farming systems. Irish Veterinary Journal 74(1):22. DOI:10.1186/s13620-021-00201-60368-076210.1186/s13620-021-00201-62046-0481info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:52:00Zoai:www.repository.utl.pt:10400.5/22473Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:06:53.477251Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Resistance and virulence distribution in enterococci isolated from broilers reared in two farming systems
title Resistance and virulence distribution in enterococci isolated from broilers reared in two farming systems
spellingShingle Resistance and virulence distribution in enterococci isolated from broilers reared in two farming systems
Semedo-Lemsaddek, Teresa
Antimicrobial resistance
Enterococcus
Broilers
Resistance genes
Virulence genes
Farming system
title_short Resistance and virulence distribution in enterococci isolated from broilers reared in two farming systems
title_full Resistance and virulence distribution in enterococci isolated from broilers reared in two farming systems
title_fullStr Resistance and virulence distribution in enterococci isolated from broilers reared in two farming systems
title_full_unstemmed Resistance and virulence distribution in enterococci isolated from broilers reared in two farming systems
title_sort Resistance and virulence distribution in enterococci isolated from broilers reared in two farming systems
author Semedo-Lemsaddek, Teresa
author_facet Semedo-Lemsaddek, Teresa
Cota, João
Ribeiro, Tânia
Pimentel, Amélia
Tavares, Luis
Bernardo, Fernando
Oliveira, Manuela
author_role author
author2 Cota, João
Ribeiro, Tânia
Pimentel, Amélia
Tavares, Luis
Bernardo, Fernando
Oliveira, Manuela
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Semedo-Lemsaddek, Teresa
Cota, João
Ribeiro, Tânia
Pimentel, Amélia
Tavares, Luis
Bernardo, Fernando
Oliveira, Manuela
dc.subject.por.fl_str_mv Antimicrobial resistance
Enterococcus
Broilers
Resistance genes
Virulence genes
Farming system
topic Antimicrobial resistance
Enterococcus
Broilers
Resistance genes
Virulence genes
Farming system
description Research Areas: Veterinary Sciences
publishDate 2021
dc.date.none.fl_str_mv 2021-11-03T12:26:06Z
2021-08-20
2021-08-20T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/22473
url http://hdl.handle.net/10400.5/22473
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Semedo-Lemsaddek T, Cota JB, Ribeiro T, Pimentel A, Tavares L, Bernardo F Oliveira M. 2021. Resistance and virulence distribution in enterococci isolated from broilers reared in two farming systems. Irish Veterinary Journal 74(1):22. DOI:10.1186/s13620-021-00201-6
0368-0762
10.1186/s13620-021-00201-6
2046-0481
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv BMC
publisher.none.fl_str_mv BMC
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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