Commensal Escherichia coli Antimicrobial Resistance and Multidrug-Resistance Dynamics during Broiler Growing Period: Commercial vs. Improved Farm Conditions
New measures applied to reduce antimicrobial resistances (AMR) at field level in broiler production are focused on improving animals’ welfare and resilience. However, it is necessary to have better knowledge of AMR epidemiology. Thus, the aim of this study was to evaluate AMR and multidrug resist...
| Autores principales: | , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | Inglés |
| Publicado: |
MDPI
2021
|
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.11939/7522 https://www.mdpi.com/2076-2615/11/4/1005 |
| _version_ | 1855032625621630976 |
|---|---|
| author | Montoro-Dasí, Laura Villagrá, Arantxa Sevilla-Navarro, Sandra Pérez-Gracia, María T. Vega, Santiago Marín, Clara |
| author_browse | Marín, Clara Montoro-Dasí, Laura Pérez-Gracia, María T. Sevilla-Navarro, Sandra Vega, Santiago Villagrá, Arantxa |
| author_facet | Montoro-Dasí, Laura Villagrá, Arantxa Sevilla-Navarro, Sandra Pérez-Gracia, María T. Vega, Santiago Marín, Clara |
| author_sort | Montoro-Dasí, Laura |
| collection | ReDivia |
| description | New measures applied to reduce antimicrobial resistances (AMR) at field level in broiler
production are focused on improving animals’ welfare and resilience. However, it is necessary to
have better knowledge of AMR epidemiology. Thus, the aim of this study was to evaluate AMR and
multidrug resistance (MDR) dynamics during the rearing of broilers under commercial (33 kg/m2
density and max. 20 ppm ammonia) and improved (17 kg/m2 density and max. 10 ppm ammonia)
farm conditions. Day-old chicks were housed in two poultry houses (commercial vs. improved),
and no antimicrobial agents were administered at any point. Animals were sampled at arrival day,
mid-period and at slaughter day. High AMR rates were observed throughout rearing. No statistical
differences were observed between groups. Moreover, both groups presented high MDR at slaughter
day. These results could be explained by vertical or horizontal resistance acquisition. In conclusion,
AMR and MDR are present throughout rearing. Moreover, although a lower level of MDR was
observed at mid-period in animals reared under less intensive conditions, no differences were found
at the end. In order to reduce the presence of AMR bacteria in poultry, further studies are needed to
better understand AMR acquisition and prevalence in differing broiler growing conditions. |
| format | article |
| id | ReDivia7522 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | ReDivia75222025-04-25T14:48:22Z Commensal Escherichia coli Antimicrobial Resistance and Multidrug-Resistance Dynamics during Broiler Growing Period: Commercial vs. Improved Farm Conditions Montoro-Dasí, Laura Villagrá, Arantxa Sevilla-Navarro, Sandra Pérez-Gracia, María T. Vega, Santiago Marín, Clara Multidrug resistance L73 Animal diseases L01 Animal husbandry L70 Veterinary science and hygiene L50 Animal physiology and biochemistry Antimicrobial resistance Broilers Farm management Escherichia coli New measures applied to reduce antimicrobial resistances (AMR) at field level in broiler production are focused on improving animals’ welfare and resilience. However, it is necessary to have better knowledge of AMR epidemiology. Thus, the aim of this study was to evaluate AMR and multidrug resistance (MDR) dynamics during the rearing of broilers under commercial (33 kg/m2 density and max. 20 ppm ammonia) and improved (17 kg/m2 density and max. 10 ppm ammonia) farm conditions. Day-old chicks were housed in two poultry houses (commercial vs. improved), and no antimicrobial agents were administered at any point. Animals were sampled at arrival day, mid-period and at slaughter day. High AMR rates were observed throughout rearing. No statistical differences were observed between groups. Moreover, both groups presented high MDR at slaughter day. These results could be explained by vertical or horizontal resistance acquisition. In conclusion, AMR and MDR are present throughout rearing. Moreover, although a lower level of MDR was observed at mid-period in animals reared under less intensive conditions, no differences were found at the end. In order to reduce the presence of AMR bacteria in poultry, further studies are needed to better understand AMR acquisition and prevalence in differing broiler growing conditions. 2021-08-02T09:26:01Z 2021-08-02T09:26:01Z 2021 article publishedVersion Montoro-Dasi, L., Villagra, A., Sevilla-Navarro, S., Pérez-Gracia, M. T., Vega, S., & Marin, C. (2021). Commensal Escherichia coli Antimicrobial Resistance and Multidrug-Resistance Dynamics during Broiler Growing Period: Commercial vs. Improved Farm Conditions. Animals, 11(4), 1005. 2076-2615 http://hdl.handle.net/20.500.11939/7522 10.3390/ani11041005 https://www.mdpi.com/2076-2615/11/4/1005 en info:eu-repo/grantAgreement/AEI/Programa Estatal de I+D+i Orientada a los Retos de la Sociedad/RTA2017-00013-00-00//Valoración del manejo animal y el manejo ambiental como alternativas al uso de antibióticos en pollos y conejos de cebo. Efecto sobre las multirresistencias This research was funded by the National Institute for Agricultural Research and Experimentation and the Ministry of Economy, Industry and Competitiveness (RTA 2017-00013, Programme: MINECO, Ministerio de Economía y Competitividad) and University CEU-UCH (INDI 19/20). Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess MDPI electronico |
| spellingShingle | Multidrug resistance L73 Animal diseases L01 Animal husbandry L70 Veterinary science and hygiene L50 Animal physiology and biochemistry Antimicrobial resistance Broilers Farm management Escherichia coli Montoro-Dasí, Laura Villagrá, Arantxa Sevilla-Navarro, Sandra Pérez-Gracia, María T. Vega, Santiago Marín, Clara Commensal Escherichia coli Antimicrobial Resistance and Multidrug-Resistance Dynamics during Broiler Growing Period: Commercial vs. Improved Farm Conditions |
| title | Commensal Escherichia coli Antimicrobial Resistance and Multidrug-Resistance Dynamics during Broiler Growing Period: Commercial vs. Improved Farm Conditions |
| title_full | Commensal Escherichia coli Antimicrobial Resistance and Multidrug-Resistance Dynamics during Broiler Growing Period: Commercial vs. Improved Farm Conditions |
| title_fullStr | Commensal Escherichia coli Antimicrobial Resistance and Multidrug-Resistance Dynamics during Broiler Growing Period: Commercial vs. Improved Farm Conditions |
| title_full_unstemmed | Commensal Escherichia coli Antimicrobial Resistance and Multidrug-Resistance Dynamics during Broiler Growing Period: Commercial vs. Improved Farm Conditions |
| title_short | Commensal Escherichia coli Antimicrobial Resistance and Multidrug-Resistance Dynamics during Broiler Growing Period: Commercial vs. Improved Farm Conditions |
| title_sort | commensal escherichia coli antimicrobial resistance and multidrug resistance dynamics during broiler growing period commercial vs improved farm conditions |
| topic | Multidrug resistance L73 Animal diseases L01 Animal husbandry L70 Veterinary science and hygiene L50 Animal physiology and biochemistry Antimicrobial resistance Broilers Farm management Escherichia coli |
| url | http://hdl.handle.net/20.500.11939/7522 https://www.mdpi.com/2076-2615/11/4/1005 |
| work_keys_str_mv | AT montorodasilaura commensalescherichiacoliantimicrobialresistanceandmultidrugresistancedynamicsduringbroilergrowingperiodcommercialvsimprovedfarmconditions AT villagraarantxa commensalescherichiacoliantimicrobialresistanceandmultidrugresistancedynamicsduringbroilergrowingperiodcommercialvsimprovedfarmconditions AT sevillanavarrosandra commensalescherichiacoliantimicrobialresistanceandmultidrugresistancedynamicsduringbroilergrowingperiodcommercialvsimprovedfarmconditions AT perezgraciamariat commensalescherichiacoliantimicrobialresistanceandmultidrugresistancedynamicsduringbroilergrowingperiodcommercialvsimprovedfarmconditions AT vegasantiago commensalescherichiacoliantimicrobialresistanceandmultidrugresistancedynamicsduringbroilergrowingperiodcommercialvsimprovedfarmconditions AT marinclara commensalescherichiacoliantimicrobialresistanceandmultidrugresistancedynamicsduringbroilergrowingperiodcommercialvsimprovedfarmconditions |