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Shedding of cephalosporin resistant Escherichia coli in pigs from conventional farms after early treatment with antimicrobials

Artículo de investigación publicado en The Veterinary Journal

1 de mayo de 2016

This study assessed the dynamics of cephalosporin resistant (CR) E. coli populations during the life cycle of pigs treated early in life with ceftiofur or tulathromycin. The study was conducted at eight conventional pig farms; four for each treatment with ceftiofur or tulathromycin. At each farm, 70 7-day-old piglets were divided into two groups: a control group (n = 30) and a treatment group (n = 40). Faecal samples were collected on day 0 and on days 2, 7 and 180 post-treatment. Sows were also sampled on day 0. CR E. coli were selected on MacConkey agar with ceftriaxone. On five farms, 7-day-old piglets excreted CR E. coli before treatment associated with the presence of CR E. coli in sows. The occurrence of CR E. coli positive animals decreased with increasing piglet age. The remaining three farms tested negative for CR E. coli during the study period. Results demonstrated great variability in the frequency of CR E. coli positive animals between farms, independent of treatment. Treatment with ceftiofur resulted in a transitory increase in the counts of CR E. coli after 48 h. However, other risk factors including the presence of CR E. coli in sows and animal age were more important than antimicrobial treatment. Accordingly, intervention strategies targeting sows would likely have a beneficial effect in reducing the occurrence of antimicrobial resistance in primary pig production




Cameron-Veas K., Moreno MA., Fraile L. y Migura-Garcia L.




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Shedding of cephalosporin resistant Escherichia coli in pigs from conventional farms after early treatment with antimicrobials

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Shedding of cephalosporin resistant Escherichia coli in pigs from conventional farms after early treatment with antimicrobials


Participantes:

Universitat Aut犥oma de BarcelonaCentre de Recerca en Sanitat Animal (CReSA). Universitat Aut犥oma de Barcelona (UAB).

Generalitat de CatalunyaInstituto de Investigaci鏮 y Tecnolog燰 Agroalimentarias (IRTA). Generalitat de Catalunya.

Universidad ComplutenseServicio de Zoonosis de Transmisi鏮 Alimentaria y Resistencia a Antimicrobianos (ZTA). Centro de Vigilancia Sanitaria Veterinaria (VISAVET). Universidad Complutense (UCM).

Universidad ComplutenseDepartamento de Sanidad Animal. Facultad de Veterinaria. Universidad Complutense (UCM).

Universitat de LleidaUniversitat de Lleida.







The Veterinary Journal
FACTOR YEAR Q
1.802 2016

NLMID: 9706281

PMID: 27053016

ISSN: 1090-0233



TÍTULO: Shedding of cephalosporin resistant Escherichia coli in pigs from conventional farms after early treatment with antimicrobials


REVISTA: Vet. J.


NUMERACIÓN: 211:21-5


AÑO: 2016


EDITORIAL: Elsevier SCI LTD


AUTORES: Cameron-Veas K., Moreno MA., Fraile L. and Migura-Garcia L.


PARTICIPANTES VISAVET


Miguel 聲gel Moreno Romo

DOI: https://doi.org/10.1016/j.tvjl.2016.02.017


CITA ESTA PUBLICACIÓN:

Cameron-Veas K., Moreno MA., Fraile L. y Migura-Garcia L. Shedding of cephalosporin resistant Escherichia coli in pigs from conventional farms after early treatment with antimicrobials. The Veterinary Journal. 211:21-5. 2016. (A). ISSN: 1090-0233. DOI: 10.1016/j.tvjl.2016.02.017


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