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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
14/09/2017 |
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Actualizado : |
13/09/2018 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
VIKRAM, A.; ROVIRA, P.J.; AGGA, G.E.; ARTHUR, T.M.; BOSILEVAC, J.M.; WHEELER, T.L.; MORLEY, P.S.; BELK, K.E.; SCHMIDT, J.W. |
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Afiliación : |
AMIT VIKRAM, U.S. Department of Agriculture, Agricultural Research Service, U.S. Meat Animal Research Center, NE.; PABLO JUAN ROVIRA SANZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. Department of Animal Sciences Colorado State University, CO, US.; GETHYM E. AGGA, U.S. Department of Agriculture, Agricultural Research Service, U.S. Meat Animal Research Center, NE.; TERRANCE M. ARTHUR, U.S. Department of Agriculture, Agricultural Research Service, U.S. Meat Animal Research Center, NE.; JOSEPH M. BOSILEVAC, U.S. Department of Agriculture, Agricultural Research Service, U.S. Meat Animal Research Center, NE.; TOMMY L. WHEELER, U.S. Department of Agriculture, Agricultural Research Service, U.S. Meat Animal Research Center, NE.; PAUL S. MORLEY, Department of Animal Sciences Colorado State University, CO, US. Department of Clinical Sciences, College of Veterinary Medicine, Colorado State University, CO, US.; KEITH E. BELK, Department of Animal Sciences Colorado State University, CO, US.; JOHN W. SCHMIDT, U.S. Department of Agriculture, Agricultural Research Service, U.S. Meat Animal Research Center, NE. Department of Animal Sciences Colorado State University, CO, US. |
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Título : |
Impact of "Raised Without Antibiotics" beef cattle production practices on occurrences of antimicrobial resistance. |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
Applied and Environmental Microbiology, 2017, v. 83, no. 22, e01682-17. |
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DOI : |
10.1128/AEM.01682-17 |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted manuscript posted online 8 September 2017// published in november 2017. |
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Contenido : |
The specific antimicrobial resistance (AMR) decreases that can be expected from reducing antimicrobial (AM) use in United States (US) beef production have not been defined. To address this data gap, feces were recovered from 36 lots of ?raised without antibiotics? (RWA) and 36 lots of ?conventional? (CONV) beef cattle. Samples (N = 719) were collected during harvest and distributed over a year. AMR was assessed by: i) culture of six AM-resistant bacteria (ARB); ii) qPCR for 10 AMR genes (ARGs); iii) an qPCR array of 84 ARGs; and iv) metagenomic sequencing. Generally, AMR levels were similar, but some were higher in CONV. The prevalence of third-generation cephalosporin-resistant (3GCr) Escherichia coli was marginally different between production systems (47.5 % CONV, 34.8% RWA, P = 0.04), but the seasonal effect (92.8% summer, 48.3% winter, P < 0.01) was greater. Erythromycin-resistant (ERYr) Enterococcus spp. concentrations significantly differed between production systems (CONV = 1.91 log10 CFU/g, RWA = 0.73 log10 CFU/g, P < 0.01). Levels of aadA1, ant(6)-I, blaACI, erm(A), erm(B), erm(C), erm(F), erm(Q), tet(A), tet(B), tet(M), and tet(X) ARGs were higher (P < 0.05) in CONV. Aggregate abundances of all 43 ARGs detected by metagenomic sequencing and the aggregate abundances of ARGs in the aminoglycoside, ?-lactam, macrolide-lincosamide-streptogramin B (MLSB), and tetracycline AM classes did not differ (log2 fold change < 1.0) between CONV and RWA. These results suggest that further reductions of AM use in US beef cattle production may not yield significant AMR reductions beyond MLSB and tetracycline resistance. MenosThe specific antimicrobial resistance (AMR) decreases that can be expected from reducing antimicrobial (AM) use in United States (US) beef production have not been defined. To address this data gap, feces were recovered from 36 lots of ?raised without antibiotics? (RWA) and 36 lots of ?conventional? (CONV) beef cattle. Samples (N = 719) were collected during harvest and distributed over a year. AMR was assessed by: i) culture of six AM-resistant bacteria (ARB); ii) qPCR for 10 AMR genes (ARGs); iii) an qPCR array of 84 ARGs; and iv) metagenomic sequencing. Generally, AMR levels were similar, but some were higher in CONV. The prevalence of third-generation cephalosporin-resistant (3GCr) Escherichia coli was marginally different between production systems (47.5 % CONV, 34.8% RWA, P = 0.04), but the seasonal effect (92.8% summer, 48.3% winter, P < 0.01) was greater. Erythromycin-resistant (ERYr) Enterococcus spp. concentrations significantly differed between production systems (CONV = 1.91 log10 CFU/g, RWA = 0.73 log10 CFU/g, P < 0.01). Levels of aadA1, ant(6)-I, blaACI, erm(A), erm(B), erm(C), erm(F), erm(Q), tet(A), tet(B), tet(M), and tet(X) ARGs were higher (P < 0.05) in CONV. Aggregate abundances of all 43 ARGs detected by metagenomic sequencing and the aggregate abundances of ARGs in the aminoglycoside, ?-lactam, macrolide-lincosamide-streptogramin B (MLSB), and tetracycline AM classes did not differ (log2 fold change < 1.0) between CONV and RWA. These results suggest tha... Presentar Todo |
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Palabras claves : |
ANTIMICROBIAL RESISTANCE; BACTERIAL CULTURE; BEEF CATTLE PRODUCTION; METAGENOMICS; RAISED WITHOUT ANTIBIOTICS. |
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Asunto categoría : |
L73 Enfermedades de los animales |
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Marc : |
LEADER 02646naa a2200301 a 4500
001 1057565
005 2018-09-13
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1128/AEM.01682-17$2DOI
100 1 $aVIKRAM, A.
245 $aImpact of "Raised Without Antibiotics" beef cattle production practices on occurrences of antimicrobial resistance.$h[electronic resource]
260 $c2017
500 $aArticle history: Accepted manuscript posted online 8 September 2017// published in november 2017.
520 $aThe specific antimicrobial resistance (AMR) decreases that can be expected from reducing antimicrobial (AM) use in United States (US) beef production have not been defined. To address this data gap, feces were recovered from 36 lots of ?raised without antibiotics? (RWA) and 36 lots of ?conventional? (CONV) beef cattle. Samples (N = 719) were collected during harvest and distributed over a year. AMR was assessed by: i) culture of six AM-resistant bacteria (ARB); ii) qPCR for 10 AMR genes (ARGs); iii) an qPCR array of 84 ARGs; and iv) metagenomic sequencing. Generally, AMR levels were similar, but some were higher in CONV. The prevalence of third-generation cephalosporin-resistant (3GCr) Escherichia coli was marginally different between production systems (47.5 % CONV, 34.8% RWA, P = 0.04), but the seasonal effect (92.8% summer, 48.3% winter, P < 0.01) was greater. Erythromycin-resistant (ERYr) Enterococcus spp. concentrations significantly differed between production systems (CONV = 1.91 log10 CFU/g, RWA = 0.73 log10 CFU/g, P < 0.01). Levels of aadA1, ant(6)-I, blaACI, erm(A), erm(B), erm(C), erm(F), erm(Q), tet(A), tet(B), tet(M), and tet(X) ARGs were higher (P < 0.05) in CONV. Aggregate abundances of all 43 ARGs detected by metagenomic sequencing and the aggregate abundances of ARGs in the aminoglycoside, ?-lactam, macrolide-lincosamide-streptogramin B (MLSB), and tetracycline AM classes did not differ (log2 fold change < 1.0) between CONV and RWA. These results suggest that further reductions of AM use in US beef cattle production may not yield significant AMR reductions beyond MLSB and tetracycline resistance.
653 $aANTIMICROBIAL RESISTANCE
653 $aBACTERIAL CULTURE
653 $aBEEF CATTLE PRODUCTION
653 $aMETAGENOMICS
653 $aRAISED WITHOUT ANTIBIOTICS
700 1 $aROVIRA, P.J.
700 1 $aAGGA, G.E.
700 1 $aARTHUR, T.M.
700 1 $aBOSILEVAC, J.M.
700 1 $aWHEELER, T.L.
700 1 $aMORLEY, P.S.
700 1 $aBELK, K.E.
700 1 $aSCHMIDT, J.W.
773 $tApplied and Environmental Microbiology, 2017$gv. 83, no. 22, e01682-17.
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INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
12/06/2018 |
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Tipo de producción científica : |
Documentos |
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Autor : |
MÉNDEZ, R.; ROEL, A.; FUREST, J.M. |
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Afiliación : |
RAMÓN FELIPE MÉNDEZ LARROSA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALVARO ROEL DELLAZOPPA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSE MARIA FUREST CROCCO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Agroclimatología. |
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Fecha de publicación : |
2003 |
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Fuente / Imprenta : |
ln: INIA TREINTA Y TRES. PROGRAMA NACIONAL DE ARROZ. Investigaciones agronómicas: reporte técnico anual 2003. Área cultivos. Treinta y Tres (Uruguay): INIA, 2003. |
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Páginas : |
cap. 1, p. 1-2. |
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Serie : |
(INIA Reporte Técnico Anual; 01) |
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Idioma : |
Español |
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Thesagro : |
CLIMA. |
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Asunto categoría : |
P40 Meteorología y climatología |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/10097/1/RTA-2003-cap-1-p.1-2.pdf
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Marc : |
LEADER 00546naa a2200169 a 4500
001 1031507
005 2018-06-12
008 2003 bl uuuu u00u1 u #d
100 1 $aMÉNDEZ, R.
245 $aAgroclimatología.
260 $c2003
300 $acap. 1, p. 1-2.
490 $a(INIA Reporte Técnico Anual; 01)
650 $aCLIMA
700 1 $aROEL, A.
700 1 $aFUREST, J.M.
773 $tln: INIA TREINTA Y TRES. PROGRAMA NACIONAL DE ARROZ. Investigaciones agronómicas: reporte técnico anual 2003. Área cultivos. Treinta y Tres (Uruguay): INIA, 2003.
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