Data/hora: 06/06/2024 17:58:05

Provedor de dados: | 65
País: | Brazil
Título: | Antibiotic resistance and virulence factors among Escherichia coli isolates from avian organic fertilizer
Autores: | Agostinho,Juliana Maria Avanci; Cardozo,Marita Vedovelli; Borzi,Mariana Monezi; Marin,José Moacir.
Data: | 2020-01-01
Ano: | 2020
Palavras-chave: | Poultry production; Enterobacteriacea; Zoonotic risk; Virulence factors.
Resumo: | ABSTRACT: Brazilian poultry industry generates large amounts of organic waste, such as chicken litter, which is often used in agriculture. Among the bacteria present in organic fertilizer are members of the Enterobacteriaceae family, such as Escherichia coli. The aim of this study was to analyze the profile of virulence factors and antimicrobial resistance of E. coli isolates from avian organic fertilizer. A total of 47 E. coli strains were tested through Polymerase chain reaction to detect virulence genes (hlyF, iss, ompT, iutA and iroN). Fourteen antimicrobials were used to test antimicrobial susceptibility in the strains. Genes characteristic of Avian Pathogenic E. coli (APEC) were reported among the strains, with the hlyF, iss and ompT genes being the most prevalent. The isolates showed high resistance (˃50%) to tetracycline, gentamicin, cefotaxime, nitrofurantoin, trimethoprim-sulfamethoxazole and ampicillin. Multidrug resistance was reported in a great number of strains (&gt;70%). The results showed the presence of APEC cells with virulence genes and antimicrobial resistance after 15 days of the windrowing process in poultry houses, it means this process should be improved to eliminate these cells.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200451
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20180849
Formato: | text/html
Fonte: | Ciência Rural  v.50 n.2 2020
Fonte: | info:eu-repo/semantics/openAccess