Effects of concentrated poultry operations and cropland manure application on antibiotic resistant Escherichia coli and nutrient pollution in Chesapeake Bay watersheds

Amato, Heather K.; Wong, Nora M.; Pelc, C.E.; Taylor, Kishana; Price, Lance B.; Altabet, Mark A.; Jordan, Thomas E.; Graham, Jay P.

doi:10.1016/j.scitotenv.2020.139401

Cited by 19 publications

(16 citation statements)

References 56 publications

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“…In runoff waters from litter‐amended soils, we observed increases of LAB, and this result is consistent with previously identified risks of litter application to downstream water resources (Amato et al., 2020; Hoover et al., 2019; Hubbard et al., 2020). To evaluate if prairie strip installations could attenuate these indicators, we compared the reduction of LAB and ARGs in littered plots with and without strips.…”

Section: Discussionsupporting

confidence: 92%

“…Treatments are crop with strip (CS), crop with strip and litter application (CSL), and crop and litter application (CL). Antibiotic resistance genes unique to litter are denoted with an asterisk previously identified risks of litter application to downstream water resources (Amato et al, 2020;Hoover et al, 2019;Hubbard et al, 2020). To evaluate if prairie strip installations could attenuate these indicators, we compared the reduction of LAB and ARGs in littered plots with and without strips.…”

Section: Discussionmentioning

confidence: 99%

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Prairie strips’ effect on transport of antimicrobial resistance indicators in poultry litter

et al. 2022

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Poultry litter is a valuable nutrient resource for agricultural production but is also a potential source for introducing antibiotic resistance genes (ARGs) and litter‐associated bacteria (LAB) to the environment. Prairie strips have been demonstrated as an effective conservation practice to improve environmental quality in agroecosystems. This research aims to assess prairie strips’ potential for reducing the transport of LAB and ARGs in runoff after litter application. Plot‐scale rainfall simulations were performed using a replicated block design, with soil and surface runoff samples taken during the rainfall event. Microbial taxa and ARGs were characterized in the litter, soil, and water samples. In plots with litter application, LAB and ARGs were mainly detected in runoff, with very low detection in soils. Detection of ARGs in runoff, irrespective of strip installations, is consistent with previous observations of litter as a source of antimicrobial resistance (AMR) risks. The effectiveness of prairie strips to remove LAB and ARGs varied. In two of the three prairie strip plots, fewer AMR indicators were detected relative to control plots, suggesting that the prairie strips can potentially reduce these risks. In one plot, which was also associated with increased flow rate, we observed increased AMR indicators despite the installation of a prairie strip. Our observations highlight the need to prioritize understanding of soil properties even within the same site. Although we show that prairie strips can potentially reduce AMR risks, further research is needed to better understand the influence of rainfall timing, soil, and litter characteristics.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Prairie strips’ effect on transport of antimicrobial resistance indicators in poultry litter

et al. 2022

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“…The studies which used genotyping methods are summarized in Table 1, and they indicate that fecally contaminated watermainly surface waters and wastewater-are an important source of UPEC. 20,[29][30][31][32][33][34][35][36][37] Zhi et al 38,39 identified pUPEC by screening wastewater samples from treatment plants in Alberta, Canada, for E. coli containing at least three of five UPEC virulence genes. When the researchers compared pUPEC with known UPEC from UTIs from international databases, they found > 96% whole genome similarity; one isolate demonstrated 99.5% genome similarity.…”

Section: Evidence Of Putative Upec In Watermentioning

confidence: 99%

Waterborne Urinary Tract Infections: Have We Overlooked an Important Source of Exposure?

Graham

Amato

Mendizábal-Cabrera

et al. 2021

The American Journal of Tropical Medicine and Hygiene

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The presence of intestinal pathogenic Escherichia coli in drinking water is well recognized as a risk for diarrhea. The role of drinking water in extraintestinal infections caused by E. coli—such as urinary tract infections (UTIs)—remains poorly understood. Urinary tract infections are a leading cause of outpatient infections globally, with a lifetime incidence of 50–60% in adult women. We reviewed the scientific literature on the occurrence of uropathogenic E. coli (UPEC) in water supplies to determine whether the waterborne route may be an important, overlooked, source of UPEC. A limited number of studies have assessed whether UPEC isolates are present in drinking water supplies, but no studies have measured whether their presence in water may increase UPEC colonization or the risk of UTIs in humans. Given the prevalence of drinking water supplies contaminated with E. coli across the globe, efforts should be made to characterize UTI-related risks associated with drinking water, as well as other pathways of exposure.

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“…There is a direct link between poultry house concentration in the Delmarva region and the amount of nutrient pollution in the watershed of the Chesapeake Bay (Amato et al 2020). Over the last several decades, broiler production has experienced significant growth, and its operations have spread throughout the watershed.…”

Section: Longo Et Al | Nutrient Overloading In the Chesapeake Baymentioning

confidence: 99%

“…The poultry industry in the whole watershed produces over 185 million pounds of nitrogen and over 50 million pounds of phosphorous each year (Chesapeake Bay Foundation 2004). While production on the Delmarva Peninsula produces only a portion of this total, with its large number of facilities and its growth and intensification over the last several decades, it is a significant contributor to nutrient pollution in the Chesapeake Bay (Amato et al 2020;Ator, Brakebill, and Blomquist 2011).…”

Section: Integration Labor and Environmental Changementioning

confidence: 99%

Nutrient Overloading in the Chesapeake Bay

Longo

Isgren

Clark

2021

Sociology of Development

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We examine socioecological drivers of nutrient overloading and eutrophication in the Chesapeake Bay associated with poultry production on the Delmarva Peninsula. We use a social metabolic analysis—rooted in a political-economy perspective—that highlights the interchange of matter and energy and the inextricable links within and between social and ecological systems, illuminating the social structural processes contributing to ecological changes. The concentration and consolidation of poultry production through integration, which involves contract farming, and geographic concentration of operations, have been associated with intensified and increased scale of chicken (broiler) production. These processes have had significant effects on waste accumulation, maintenance, and disposal, and this industry has become one of the major contributors of nutrient overloading in the Chesapeake Bay. This study, therefore, specifies social processes that are driving environmental changes between land and sea.

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Effects of concentrated poultry operations and cropland manure application on antibiotic resistant Escherichia coli and nutrient pollution in Chesapeake Bay watersheds

Cited by 19 publications

References 56 publications

Prairie strips’ effect on transport of antimicrobial resistance indicators in poultry litter

Prairie strips’ effect on transport of antimicrobial resistance indicators in poultry litter

Waterborne Urinary Tract Infections: Have We Overlooked an Important Source of Exposure?

Nutrient Overloading in the Chesapeake Bay

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