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Previous issue date: 2018-08-31 / Escherichia coli (E. coli) occupies the 2nd place among microorganisms involved in outbreaks of DVA’s in Brazil and is among the 4 most important worldwide, due to its importance the purpose of the work was to verify the microbiological quality the presence of E. coli in products of animal origin. A total of 365 strains were isolated by means of trailing swabs of 154 carcasses of cattle, slaughtered in the municipality of Mineiros - GO. The incidence of E. coli in the samples collected was 81,65%.Of the isolates, 16 had the gene (eae), and none had genes (stx1, stx2). Therefore, their frequency in the carcasses was 9,74% (15/154). All 16 strains were tested for adhesion genes (ToxB, efa1), but none has these genes. They were also tested for motility where 100% (16/16) were positive and for hemolysis where a frequency of 37,5% (6/16) was obtained. Fifty strains were tested for antimicrobial resistance, and the antibiotics with the highest percentages of resistance among bacteria were Cephalotin with 82% (41/50), followed by Gentamicin and Amicacin with 26% (13/50) each. None of the samples showed production of the extended spectrum beta-lactamase enzyme. These results demonstrate the presence of EPEC multiresistant in bovine carcasses slaughtered in the municipality of Mineiros-GO. / A Escherichia coli (E. coli) ocupa o 2° lugar entre os microrganismos envolvidos em surtos de DVA’s no Brasil e está entre os 4 mais importantes a nível mundial, devido a sua importância o intuito do trabalho foi de verificar a qualidade microbiológica frente a presença de E. coli nos produtos de origem animal. Um total de 365 cepas foram isoladas por meio de suabes de arrasto de
154 carcaças de bovinos, abatidos no município de Mineiros – GO. A incidência de E. coli nas amostras coletadas foi de 81,65%. Das cepas isoladas, 16 possuíam o gene (eae), e nenhuma apresentou os genes (stx1, stx2). Portanto, a frequência destas nas carcaças foi de 9,74% (15/154). As 16 cepas foram testadas para os genes de adesão (ToxB, efa1), porém nenhuma apresentou os referidos genes. Também foram testadas para motilidade onde 100% (16/16) foram positivas, e para hemólise onde se obteve incidência de 37,5% (6/16). Quanto ao perfil de resistência a antimicrobianos foram testadas 50 cepas, e os antibióticos com maiores porcentagens de resistência entre as bactérias foram a Cefalotina com 82% (41/50), seguido pela Gentamicina e Amicacina com 26% (13/50) cada. Nenhuma das amostras apresentou a produção da enzima beta-lactamase de espectro estendido. Os resultados demonstram a presença de EPEC multirresistentes em carcaças de bovinos abatidos no município de Mineiros –GO.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.bc.ufg.br:tede/8942 |
| Date | 31 August 2018 |
| Creators | Pádua, Gracielle Teles |
| Contributors | Stella, Ariel Eurides, Stella, Ariel Eurides, Moreira, Cecília Nunes, Moreli, Marcos Lázaro |
| Publisher | Universidade Federal de Goiás, Programa de Pós-graduação em Biociência Animal (RJ), UFG, Brasil, Regional Jataí (RJ) |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da UFG, instname:Universidade Federal de Goiás, instacron:UFG |
| Rights | http://creativecommons.org/licenses/by-nc-nd/4.0/, info:eu-repo/semantics/openAccess |
| Relation | 1559575887027025341, 600, 600, 600, -7730867143693479402, -7513779660372594992 |
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