Effect of composting and soil type on dissipation of veterinary antibiotics in land-applied manures

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dc.contributor.authorChen, Chaoqien
dc.contributor.authorRay, Partha P.en
dc.contributor.authorKnowlton, Katharine F.en
dc.contributor.authorPruden, Amyen
dc.contributor.authorXia, Kangen
dc.contributor.departmentCivil and Environmental Engineeringen
dc.contributor.departmentDairy Scienceen
dc.contributor.departmentSchool of Plant and Environmental Sciencesen
dc.contributor.editorKümmerer, Ken
dc.date.accessioned2018-01-16T14:06:45Zen
dc.date.available2018-01-16T14:06:45Zen
dc.date.issued2018en
dc.description.abstractThe objective of this study was to determine the fate of commonly used veterinary antibiotics in their naturally excreted form when manure-based amendments are applied to soil. Beef cattle were administered sulfamethazine, tylosin, and chlortetracycline and dairy cows were treated with pirlimycin. The resulting manure was composted for 42 d under static or turned conditions and applied at agronomic N rates to sandy, silt, and silty clay loam soils and compared with amendment with corresponding raw manures in sacrificial microcosms over a 120-day period. Antibiotic dissipation in the raw manure-amended soils followed bi-phasic first order kinetics. The first phase half-lives for sulfamethazine, tylosin, chlortetracycline, and pirlimycin ranged from 6.0 to 18, 2.7 to 3.7, 23 to 25, and 5.5–8.2 d, respectively. During the second phase, dissipation of sulfamethazine was negligible, while the half-lives for tylosin, chlortetracycline, and pirlimycin ranged from 41 to 44, 75 to 144, and 87–142 d, respectively. By contrast, antibiotic dissipation in the compost-amended soils followed single-phase first order kinetics with negligible dissipation of sulfamethazine and half-lives of tylosin and chlortetracycline ranging from 15 to 16 and 49–104 d, respectively. Pirlimycin was below the detection limit in the compost-amended soils. After incubating 120 d, antibiotics in compost-amended soils (up to 3.1 μg kg−1) were significantly lower than in manure-amended soils (up to 19 μg kg−1, p < .0001), with no major effect of soil type on the dissipation. Risk assessment suggested that composting can reduce antibiotic resistance selection potential in manure-amended soils.en
dc.description.notesfalse (Extension publication?)en
dc.description.versionPublished versionen
dc.format.extent270 - 279 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/81795en
dc.identifier.volume196en
dc.language.isoenen
dc.relation.urihttps://doi.org/10.1016/j.chemosphere.2017.12.161en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.titleEffect of composting and soil type on dissipation of veterinary antibiotics in land-applied manuresen
dc.title.serialChemosphereen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dcterms.dateAccepted2017-12-24en
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciencesen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/Crop & Soil Environmental Scienceen

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