Virulence factors of avian pathogenic Escherichia coli (APEC) isolated from coli-septicaemia in chicken (Gallus gallus domesticus)

2016 ◽  
Author(s):  
Giovana Camillo
Keyword(s):  
Escherichia Coli ◽  
Virulence Factors ◽  
Gallus Gallus ◽  
Gallus Domesticus ◽  
Gallus Gallus Domesticus ◽  
Avian Pathogenic Escherichia Coli ◽  
Pathogenic Escherichia Coli

scholarly journals Calidad microbiológica y fisicoquímica y sabor de huevos de gallina de producción convencional o pastoreo

2021 ◽  
pp. 45264
Author(s):  
Marie Guier-Serrano ◽  
Gabriela Davidovich-Young ◽  
Eric Wong-González ◽  
Elba Cubero-Castillo
Keyword(s):  
Escherichia Coli ◽  
Costa Rica ◽  
Gallus Gallus ◽  
Gallus Domesticus ◽  
Gallus Gallus Domesticus ◽  
E Coli

Introducción. El huevo de gallina (Gallus gallus domesticus) es un alimento nutritivo de la dieta de millones de personas. Su producción mundial se obtiene con el empleo de jaulas convencionales, aunque existen sistemas alternativos como el pastoreo. Objetivo. Comparar la calidad microbiológica, fisicoquímica y el sabor de huevos provenientes de granjas con sistemas productivos convencionales o de pastoreo en Costa Rica. Materiales y métodos. El trabajo se realizó en Alajuela, Costa Rica de octubre del 2016 a mayo del 2017. Se muestrearon superficies y huevos de gallinas Isa Brown en granjas con sistemas productivos convencionales o de pastoreo y se determinó el recuento de coliformes totales, Escherichia coli, mohos y levaduras y ausencia/presencia de Salmonella sp. Además, se analizaron parámetros fisicoquímicos (unidades Haugh, índice de yema, pH, color de yema y dureza de cáscara) y se realizó una prueba sensorial de discriminación con consumidores. Resultados. Los sistemas de producción de pastoreo tienen superficies en contacto con los huevos con recuentos de coliformes totales y E. coli significativamente mayores que las superficies del sistema convencional. Los huevos de pastoreo presentaron recuentos de coliformes totales (3,2 log10 UFC huevo-1) significativamente mayores que los huevos convencionales (2,3 log10 UFC huevo-1). Salmonella sp. estuvo presente en 8 % de las muestras de pastoreo (incidencia no diferente de 0) y ausente en las convencionales. Se encontró diferencia en el color de la yema (más oscura en los huevos convencionales). Además, hubo diferencia significativa en el sabor de ambos tipos de huevo. Conclusión. En general, existió diferencia en la calidad microbiológica, fisicoquímica y el sabor de huevos producidos en granja de tipo convencional o pastoreo.

scholarly journals Virulence factors of avian pathogenic Escherichia coli (APEC)

2009 ◽  
Vol 29 (7) ◽  
pp. 479-486 ◽  
Author(s):  
Gerson Nakazato ◽  
Tatiana Amabile de Campos ◽  
Eliana Guedes Stehling ◽  
Marcelo Brocchi ◽  
Wanderley Dias da Silveira
Keyword(s):  
Escherichia Coli ◽  
Virulence Factors ◽  
Economic Losses ◽  
Virulence Determinants ◽  
Avian Pathogenic Escherichia Coli ◽  
Pathogenic Escherichia Coli

Avian pathogenic Escherichia coli (APEC) strains cause a great diversity of diseases in birds and are responsible for great economic losses in the avian industry. To date, several studies have been carried out to better understand the APEC pathogenesis for a possible development of tools which could prevent the economics losses caused by these strains. This review discusses the virulence factors described do date to be expressed by these strains and the advances made to understand and identify virulence determinants present in APEC.

Virulence Factors of Avian Pathogenic Escherichia coli Isolated from Broilers from the South of Brazil

2002 ◽  
Vol 46 (3) ◽  
pp. 749-753 ◽  
Author(s):  
Ana Cristina Gonçalves Pinto da Rocha ◽  
Ari Bernardes da Silva ◽  
Benito Guimarães de Brito ◽  
Hamilton Luiz de Souza Moraes ◽  
Alexandre Pontes Pontes ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Virulence Factors ◽  
Avian Pathogenic Escherichia Coli ◽  
The South ◽  
Pathogenic Escherichia Coli ◽  
South Of Brazil

scholarly journals SUSCEPTIBILIDADE ANTIMICROBIANA DE AMOSTRAS DE ESCHERICHIA COLI ISOLADAS DE FRANGO INDUSTRIAL (GALLUS GALLUS DOMESTICUS - LINNAEUS, 1758) COM COLIBACILOSE

2010 ◽  
Vol 77 (4) ◽  
pp. 715-718
Author(s):  
G.A. Marietto Gonçalves ◽  
R.L. Andreatti Filho
Keyword(s):  
Escherichia Coli ◽  
Gallus Gallus ◽  
Gallus Domesticus ◽  
Gallus Gallus Domesticus

RESUMO O presente estudo avaliou a susceptibilidade de amostras de Escherichia coli isoladas de quadros de colissepticemia aviária da região centro-oeste paulista pelo Laboratório de Ornitopatologia da FMVZ-UNESP/Botucatu, SP. Constatou-se um grande número de amostras multirresistentes aos antibióticos testados, onde as drogas menos efetivas foram sulfonamida e tetraciclina. Todas as amostras mostraram-se sensíveis a norfloxacina e gentamicina.

scholarly journals Virulence factors and antibiotic resistance of avian pathogenic Escherichia coli in eastern China

2019 ◽  
Vol 63 (3) ◽  
pp. 317-320 ◽  
Author(s):  
Xiaojing Xu ◽  
Qing Sun ◽  
Lixiang Zhao
Keyword(s):  
Escherichia Coli ◽  
Antibiotic Resistance ◽  
Virulence Factors ◽  
Virulence Genes ◽  
Eastern China ◽  
Economic Losses ◽  
Avian Pathogenic Escherichia Coli ◽  
Phylogenetic Groups ◽  
Important Data ◽  
Pathogenic Escherichia Coli

Abstract Introduction Avian pathogenicEscherichia coli (APEC) causes serious colibacillosis and significant economic losses. Data on profiles of virulence factors and antibiotic resistances among APEC strains are crucial to the control of infection. In this study, strains were isolated from eastern China, and the prevalence of virulence factors and distribution of antibiotic resistance were determined. Material and Methods APEC strains were isolated and characterised by PCR for O serogroups, virulence factor genes, antibiotic resistance, and phylogenetic groups. Results O78 was the most prevalent serogroup and type A was the most frequent phylogenetic group. ThefimH,feoB, andiron genes were the most prevalent among the isolates. All isolates were multiresistant, and all strains were resistant to ampicillin and tetracycline, which are widely used in the poultry industry in China. Conclusion This study provided important data on the presence of virulence genes and antibiotic resistance profiles of APEC from poultry farms in eastern China.

An efficient method for identifying Escherichia coli strains isolated from various (Gallus gallus domesticus) organs

2016 ◽  
Vol 6 (3) ◽  
pp. 314-320
Author(s):  
V. P. Terletskiy ◽  
V. I. Tyshchenko ◽  
O. B. Novikova ◽  
E. D. Dzhavadov ◽  
I. Ya. Shakhtamirov ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Efficient Method ◽  
Gallus Gallus ◽  
Gallus Domesticus ◽  
Gallus Gallus Domesticus
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