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Antimicrobial Resistance of Escherichia coli isolated from broilers raised in conventional and organic poultry farms.

Grant number: 16/12641-9
Support Opportunities:Regular Research Grants
Start date: October 01, 2016
End date: September 30, 2018
Field of knowledge:Agronomical Sciences - Veterinary Medicine - Animal Pathology
Principal Investigator:Terezinha Knöbl
Grantee:Terezinha Knöbl
Host Institution: Faculdade de Medicina Veterinária e Zootecnia (FMVZ). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

The Brazilian poultry industry highlights by high productivity and competitiveness of its products on the world market. For several decades the use of antibiotic was employed as additives in feed for the purpose of improving animal performance. However, these additives may exert a selective pressure on bacteria, changing the kinetics of acquiring antimicrobial resistance, especially when this resistance is encoded by mobile DNA elements, such as plasmids and integrons. The ban on the use of these drugs by some countries reinforces the popular pressure for organic products. This study aims to compare the antimicrobial resistance in Escherichia coli strains isolated from broilers raised in conventional and organic systems. We will be used 200 fecal samples and 160 meat samples from conventional and organic farms, for isolation and identification of E. coli. The strains will be subjected to phenotypic and molecular characterization of antimicrobial resistance determinants (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
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Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CUNHA, MARCOS P. V.; DAVIES, YAME M.; CERDEIRA, LOUISE; DROPA, MILENA; LINCOPAN, NILTON; KNOBL, TEREZINHA. Complete DNA Sequence of an IncM1 Plasmid Bearing the Novel qnrE1 Plasmid-Mediated Quinolone Resistance Variant and bla(CTX-M-8) from Klebsiella pneumoniae Sequence Type 147. Antimicrobial Agents and Chemotherapy, v. 61, n. 9, . (16/12641-9, 15/21325-0, 14/11523-7)
GIOIA-DI CHIACCHIO, ROSELY MARTINS; VIEIRA CUNHA, MARCOS PAULO; MARQUES DE SA, LILIAN ROSE; DAVIES, YAME MINIEIRO; PACHECO PEREIRA, CAMILA BUENO; MARTINS, FERNANDO HENRIQUE; MUNHOZS, DANIELLE DIAS; ABE, CECILIA MARI; FRANZOLIN, MARCIA REGINA; DOS SANTOS, LUIS FERNANDO; et al. Novel Hybrid of Typical Enteropathogenic Escherichia coli and Shiga-Toxin-Producing E-coli (tEPEC/STEC) Emerging From Pet Birds. FRONTIERS IN MICROBIOLOGY, v. 9, . (13/06589-6, 16/12641-9)
CUNHA, MARCOS P. V.; OLIVEIRA, MIRELA C. V.; OLIVEIRA, MARIA G. X.; MENAO, MARCIA C.; KNOBL, TEREZINHA. CTX-M-producing Escherichia coli Isolated from urban pigeons (Columba livia domestica) in Brazil. JOURNAL OF INFECTION IN DEVELOPING COUNTRIES, v. 13, n. 11, p. 1052-1056, . (16/12641-9)
BRUNA G. CABRAL; YAMÊ M. DAVIES; MÁRCIA CRISTINA MENÃO; ANDRE B.S. SAIDENBERG; VASCO TÚLIO M. GOMES; LUISA Z. MORENO; MARIA INÊS Z. SATO; ANDREA M. MORENO; TEREZINHA KNÖBL. Psitacídeos de companhia como reservatórios de Enterococcus spp. gentamicina e vancomicina-resistentes. Pesquisa Veterinária Brasileira, v. 40, n. 2, p. 129-133, . (16/12641-9)
CUNHA, MARCOS P. V.; LINCOPAN, NILTON; CERDEIRA, LOUISE; ESPOSITO, FERNANDA; DROPA, MILENA; FRANCO, LETICIA S.; MORENO, ANDREA M.; KNOEBL, TEREZINHA. Coexistence of CTX-M-2, CTX-M-55, CMY-2, FosA3, and QnrB19 in Extraintestinal Pathogenic Escherichia coli from Poultry in Brazil. Antimicrobial Agents and Chemotherapy, v. 61, n. 4, . (14/11523-7, 16/12641-9, 15/21325-0)
DAVIES, YAME MINIERO; VIEIRA CUNHA, MARCOS PAULO; DROPA, MILENA; LINCOPAN, NILTON; MOURA GOMES, VASCO TULIO; MORENO, LUISA ZANOLI; ZANOLI SATO, MARIA INES; MORENO, ANDREA MICKE; KNOBL, TEREZINHA. Pandemic Clones of CTX-M-15 Producing Klebsiella pneumoniae ST15, ST147, and ST307 in Companion Parrots. MICROORGANISMS, v. 10, n. 7, p. 9-pg., . (16/12641-9)
DE OLIVEIRA, MIRELA C. V.; CAMARGO, BEATRIZ Q.; CUNHA, MARCOS P. V.; SAIDENBERG, ANDRE BECKER; TEIXEIRA, RODRIGO H. F.; MATAJIRA, CARLOS E. C.; MORENO, LUISA Z.; GOMES, VASCO T. M.; CHRIST, ANA P. G.; BARBOSA, MIKAELA R. F.; et al. Free-Ranging Synanthropic Birds (Ardea alba and Columba livia domestica) as Carriers of Salmonella spp. and Diarrheagenic Escherichia coli in the Vicinity of an Urban Zoo. VECTOR-BORNE AND ZOONOTIC DISEASES, v. 18, n. 1, p. 65-69, . (14/11523-7, 15/26159-1, 16/12641-9)