Publications by authors named "Richard Helliwell"

Antimicrobial resistance (AMR) is a wicked problem with long-term and unpredictable impacts on human and animal health. Understanding how to govern AMR long-term, amidst evolving social, political, economic, technological and environmental changes which will impact livestock production, animal health and AMR risks is therefore critical. The study used scenario planning as a methodology for envisioning plausible future challenges and thus identify possible strategic responses.

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We assess three words commonly used to represent the environmental dimensions of antimicrobial resistance (AMR) - 'hotspot', 'reservoir' and 'pristine' - through two questions: how are these terms used in published research; and how do these terms shape research being conducted? We advocate for the community to reflect on and improve its use of language, and suggest four potentially more productive and precise terms for AMR hazard: presence; transmission; evolution and connectivity.

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Dairy slurry is a major source of environmental contamination with antimicrobial resistant genes and bacteria. We developed mathematical models and conducted on-farm research to explore the impact of wastewater flows and management practices on antimicrobial resistance (AMR) in slurry. Temporal fluctuations in cephalosporin-resistant were observed and attributed to farm activities, specifically the disposal of spent copper and zinc footbath into the slurry system.

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Article Synopsis
  • * A thorough analysis of dairy slurry revealed a diverse population of ARB and ARGs, where antibiotic resistances were linked to various bacteria and mobile genetic elements, indicating they are in a dynamic state of equilibrium.
  • * The study suggests that storing slurry without new waste for at least 60 days can substantially reduce the spread of certain resistant bacteria, and emphasizes the importance of combining responsible antibiotic practices with effective slurry management to combat AMR.
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Environmental NGOs have various concerns about agricultural biotechnologies including gene editing. Accepting their skepticism of problems and solutions could help to build mutual understanding and find acceptable solutions to global food vulnerabilities. [Image: see text]

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The paper clarifies the social and value dimensions for integrated sustainability assessments of lignocellulosic biofuels. We develop a responsible innovation approach, looking at technology impacts and implementation challenges, assumptions and value conflicts influencing how impacts are identified and assessed, and different visions for future development. We identify three distinct value-based visions.

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