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Manure injection affects the fate of pirlimycin in surface runoff and soil

Kulesza, S. B., Maguire, R. O., Xia, K., Cushman, J., Knowlton, K. and Ray, P. ORCID: (2016) Manure injection affects the fate of pirlimycin in surface runoff and soil. Journal of Environmental Quality, 45 (2). pp. 511-518. ISSN 1537-2537

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To link to this item DOI: 10.2134/jeq2015.06.0266


Antibiotics used in animal agriculture are of increasing environmental concern due to the potential for increased antibiotic resistance after land application of manure. Manure application technology may affect the environmental behavior of these antibiotics. Therefore, rainfall simulations were conducted on plots receiving three manure treatments (surface application, subsurface injection, and no manure control) to determine the fate and transport of pirlimycin, an antibiotic commonly used in dairy production. Rainfall simulations were conducted immediately and 7 d after application of dairy manure spiked with 128 ng g−1 (wet weight) pirlimycin. Soil samples were collected from all plots at two depths (0–5 and 5–20 cm). For injection plots, soil was collected from injection slits and between slits. Pirlimycin concentrations were higher in soil within the injection slits compared with surface application plots at 0 and 7 d. Pirlimycin concentrations in the 0- to 5-cm depth decreased by 30, 55, and 87% in the injection slit, between injection slits, and surface application plots 7 d after application. Pirlimycin concentrations were 106 ng g−1 in sediment and 4.67 ng mL−1 in water from the surface application plots, which were 21 and 32 times that of the injection plots, respectively. After 7 d, pirlimycin levels in runoff sediment and water decreased 80 to 98%. Surface application resulted in six and three times higher pirlimycin concentrations in water and sediment than injection. These results indicate that pirlimycin is most susceptible to loss immediately after manure application. Thus, injection could be considered a best management practice to prevent loss of antibiotics in surface runoff.

Item Type:Article
Divisions:Life Sciences > School of Agriculture, Policy and Development > Department of Animal Sciences > Animal, Dairy and Food Chain Sciences (ADFCS)- DO NOT USE
ID Code:66006
Additional Information:Special Section: Antibiotics in agroecosystems: state of the science
Publisher:American Society of Agronomy; Crop Science Society of America; Soil Science Society of America

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