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Can Clays in Livestock Feed Promote Antibiotic Resistance and Virulence in Pathogenic Bacteria?

AutorRodríguez-Rojas, Alexandro; Rodríguez Beltrán, Jerónimo; Valverde, José R. ; Blázquez Gómez, Jesús
Palabras claveAntimicrobial
Antibiotic resistance
Horizontal gene transfer
Virulence factor
Clay
Sepiolite
Fecha de publicación16-jul-2015
EditorMolecular Diversity Preservation International
CitaciónAntibiotics 4(3): 299-308 (2015)
ResumenThe use of antibiotics in animal husbandry has long been associated with the appearance of antibiotic resistance and virulence factor determinants. Nonetheless, the number of cases of human infection involving resistant or virulent microorganisms that originate in farms is increasing. While many antibiotics have been banned as dietary supplements in some countries, other additives thought to be innocuous in terms of the development and spread of antibiotic resistance are used as growth promoters. In fact, several clay materials are routinely added to animal feed with the aim of improving growth and animal product quality. However, recent findings suggest that sepiolite, a clay additive, mediates the direct transfer of plasmids between different bacterial species. We therefore hypothesize that clays present in animal feed facilitate the horizontal transfer of resistance determinants in the digestive tract of farm animals.
Versión del editorhttp://dx.doi.org/10.3390/antibiotics4030299
URIhttp://hdl.handle.net/10261/123426
DOI10.3390/antibiotics4030299
ISSN079-6382
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