Relative role of transport and source-limited controls for estrogen, TDP, and DOC export for two manure application methods

Mina, Odette; Gall, Heather E.; Saporito, Lou S.; Elliott, Herschel A.; Kleinman, Peter J. A.

doi:10.1016/j.agee.2017.06.045

Cited by 9 publications

(2 citation statements)

References 48 publications

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“…Greater surface losses in the broadcast application at this sampling date (mainly as the particulate fraction) were likely due to a major hail event that disturbed the surface applied manure from fall. Mina et al (2017) also reported larger concentrations of dissolved organic C and estrogen in the surface runoff in the same site, which was mainly derived from the hail event on 22 April.…”

Section: Resultsmentioning

confidence: 73%

Varying Influence of Dairy Manure Injection on Phosphorus Loss in Runoff over Four Years

et al. 2019

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Surface application of manure on no-till farms can exacerbate P losses in runoff, contributing to the eutrophication of surface waters. We monitored 12 400-m 2 field plots over 4 yr to compare P losses in surface runoff and lateral subsurface flow with shallow disk injection and broadcast application of dairy manure. Given the substantial variability in annual P losses, as well as a gradual, annual buildup of residual soil test P, significant differences in runoff P losses were detected in only 1 of 4 yr: in 2014, total P losses in runoff were 68% greater from broadcast manure plots than injected manure plots. Dissolved and particulate P were roughly even in their contribution to runoff. Even so, there were significant relationships between annual dissolved P losses and P in the soil surface, which pointed to soils as a regular source of P in runoff. Overall, results confirm the potential for injection to reduce P loss in runoff relative to broadcast application, but because in a few sampling dates injection resulted in greater losses, this study also highlights the importance of assessing mitigation benefits of manure application practices over longer timeframes.

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Section: Resultsmentioning

confidence: 73%

Varying Influence of Dairy Manure Injection on Phosphorus Loss in Runoff over Four Years

et al. 2019

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“…In a bovine feedlot setting, antibiotics typically enter the environment following manure application via leaching into the soil and runoff (Sarmah et al., 2006). A plethora of studies have focused primarily on the occurrence and biological effects of antibiotics in land‐applied animal feedlots (Bartelt‐hunt et al., 2012), with the majority of findings observing elevated concentrations in the soil due to animal excretion (Arikan et al., 2006; Mina et al., 2017; Zhao et al., 2010). Further, the majority of feedlot studies have focused on conventional contaminants that include, but are not limited to, sediment, nutrients, and Escherichia coli (Gilley et al., 2011; Miller et al., 2004).…”

Section: Introductionmentioning

confidence: 99%

Occurrence and persistence of antibiotics administered to cattle in a newly established feedlot

Trejo,

Russell,

Bartelt‐Hunt

et al. 2023

J of Env Quality

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The common practice of using therapeutic antibiotics in livestock farming is a worldwide phenomenon. Over the last decade, there has been a growing concern of antibiotics entering the environment via animal manure. Similar studies have focused on the occurrence and biological effects of antibiotics in land‐applied animal feedlots; however, limited research has been conducted on the occurrence and persistence of antibiotics in animal feedlots. Therefore, the objective of this study was to evaluate antibiotic persistence, fate, and transport in surface water runoff and feedlot sediment in feedlot pens with livestock either receiving or not receiving antibiotic treatments through injection and feed. The two antibiotics (tylosin and monensin) added to animal feed were observed to persist in the soil environment for more than 30 days along with injected florfenicol. Monensin (5.6X higher) and tylosin (20X higher) were significantly higher in livestock pens receiving antibiotics compared livestock pens not receiving the antibiotics. Further, rainfall was observed to significantly impact soil surface concentrations of florfenicol. Other antibiotics administrated by injection were not observed to statistical increase in concentrations in runoff or feedlot sediment. Findings emphasize antibiotics administered in feedlots have the potential to persistent and remain in feedlot sediment and runoff, particularly in instances of regular administration in feed.This article is protected by copyright. All rights reserved

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Occurrence, sorption, and transformation of free and conjugated natural steroid estrogens in the environment

Yang

et al. 2019

Environ Sci Pollut Res

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Relative role of transport and source-limited controls for estrogen, TDP, and DOC export for two manure application methods

Cited by 9 publications

References 48 publications

Varying Influence of Dairy Manure Injection on Phosphorus Loss in Runoff over Four Years

Varying Influence of Dairy Manure Injection on Phosphorus Loss in Runoff over Four Years

Occurrence and persistence of antibiotics administered to cattle in a newly established feedlot

Occurrence, sorption, and transformation of free and conjugated natural steroid estrogens in the environment

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