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| Knöbl,Terezinha; Gomes,Tânia Aparecida Tardelli; Vieira,Mônica Aparecida Midolli; Ferreira,Fernando; Bottino,José Américo; Ferreira,Antônio José Piantino. |
| Three hundred and fifty strains of E. coli isolated from septicemic poultry from seven states of Brazil were examined for presence of nine adhesion-encoding genes, hemagglutination and adherence to chicken tracheal cells (in vitro). Analysis of the strains by colony hybridization tests demonstrated that 93.7% of the isolates were fim +, 17% pap+ and 5.7% were sfa+. The mannose sensitive fimbriae occur with similar frequency in APEC isolated from all Brazilians states, while significant differences among pap and sfa genes distributions were observed. The results showed that 0.85% and 0.28% of APEC were positive for genes that encoded enteroaggregative adhesins and EPEC adherence factor, respectively. None of APEC was positive for DA, afa, Bfp and Eae... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: APEC; Escherichia coli; Adhesins; Colibacillosis; Poultry. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000300033 |
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| Elobeid, Amani E.; Tokgoz, Simla; Yu, Tun-Hsiang (Edward). |
| The emerging biofuel sector has drawn great interest as an alternative source of fuel for transportation. The expansion of biofuels greatly impacts world agricultural markets, since currently, the primary feedstocks for ethanol and biodiesel production are field crops and their derived products. There is great interest in the potential of countries to expand their biofuel sectors through increased production of feedstocks. The long-term potential for developing first-generation biofuels in many countries depends on a large and constant supply of feedstocks. This may be achieved in two ways: land extensification and/or land intensification. However, expansion of land area comes with a number of environmental challenges highlighted by the recent debate on... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Biofuels; Yield growth; APEC; Land Economics/Use; Productivity Analysis. |
| Ano: 2009 |
URL: http://purl.umn.edu/61178 |
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| Oliveira,ES; Cardozo,MV; Borzi,MM; Borges,CA; Guastalli,EAL; Ávila,FA. |
| ABSTRACT Avian pathogenic Escherichiacoli (APEC) virulence mechanism has been continuously studied and it is believed to be multifactorial and because of this, this work aimed to characterize potentially APEC strains isolated from free-range hens. Isolates were submitted to PCR for the detection of virulence genes, which were of high prevalence. In vivo inoculation of day-old chicks revealed that 49 of these strains were of high and intermediate pathogenicity. In addition, isolates were submitted to antimicrobials susceptibility test with the majority of the strains presenting multiresistance. Phylogenetic analysis showed a greater presence of potentially APEC isolates in-group B2. In addition, high heterogeneity was detected among the isolates byXbaI... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: APEC; Backyard chickens; Colibacillosis; Pathogenicity; Virulence factors. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100326 |
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| Kanabata,B; Menck-Costa,MF; Souza,M; Justino,L; Rangel,IG; Kobayashi,RKT; Nakazato,G; Baptista,AAS. |
| ABSTRACT Avian cellulitis causes significant losses to the poultry industry. Avian-pathogenic Escherichia coli (APEC) is the etiological agent of that disease. This microorganism has zoonotic potential and may act as reservoir of antimicrobial-resistance genes. In this context, the production of extended-spectrum B-lactamase (ESBL) is one of the main antimicrobial resistance mechanisms. The objective of this study was to determine the production of ESBL in an Escherichia coli (E. coli) strain isolated from avian cellulitis lesions. Twenty-two E. Coli isolates were harvested from cellulitis lesions in chicken carcasses in a commercial processing plant. Isolates were then submitted to virulence genotypic profile (iutA, hlyF, iss, ironN, ompT) analysis,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: APEC; Avian cellulitis; ESBL; MDR; Virulence factor. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300326 |
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