Basics of ultraviolet C (UV-C) light: considerations for use at livestock production facilities

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2021-01-01
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Koziel, Jacek
Zimmerman, Jeffrey
Jenks, William
Cheng, Ting-Yu
Holtkamp, Derald
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Koziel, Jacek
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Jenks, William
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Veterinary Diagnostic and Production Animal Medicine
The mission of VDPAM is to educate current and future food animal veterinarians, population medicine scientists and stakeholders by increasing our understanding of issues that impact the health, productivity and well-being of food and fiber producing animals; developing innovative solutions for animal health and food safety; and providing the highest quality, most comprehensive clinical practice and diagnostic services. Our department is made up of highly trained specialists who span a wide range of veterinary disciplines and species interests. We have faculty of all ranks with expertise in diagnostics, medicine, surgery, pathology, microbiology, epidemiology, public health, and production medicine. Most have earned certification from specialty boards. Dozens of additional scientists and laboratory technicians support the research and service components of our department.
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Food Science and Human NutritionCivil, Construction and Environmental EngineeringChemistryVeterinary Diagnostic and Production Animal MedicineAgricultural and Biosystems EngineeringChemistryVeterinary Diagnostic and Production Animal Medicine
Abstract

Ultraviolet (UV) light is the range of electromagnetic radiation immediately more energetic than the visible range. UVC light has been found useful for disinfection in a variety of areas, including but not limited to air disinfection, water (and wastewater) treatment, laboratory disinfection (especially inside biosecurity cabinets), food and beverage preservation, and medical applications. UVC light has limitations as a disinfectant, mainly due to the need for adequate photon flux over the surface or atmosphere of interest. A common source of UVC in commercial applications is the standard “germicidal” lamp. The application in livestock production is a recent development and may be of increasingly higher interest for farmers to implement to defend the farms from infectious diseases such as African swine fever (ASF). However, the knowledge gap exists for producers and veterinarians in terms of the physics/mechanisms of UVC, the doses required to inactivate swine pathogens, and practical conditions under which UVC can operate effectively and practically on swine farms. To address this issue, this paper incorporates the overview of UVC light that is applicable for germicidal purposes, mechanisms of inactivation, UVC dose calculation, measurement of UVC, factors affecting UVC germicidal effectiveness, UVC light system components, and UVC light bulb selection to better inform the operator to effectively apply UV technologies in animal production.

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This conference presentation is published as Li, Peiyang, Jacek A. Koziel, Jeffrey J. Zimmerman, William S. Jenks, Ting-Yu Cheng, and Derald J. Holtkamp. "Basics of ultraviolet C (UV-C) light: considerations for use at livestock production facilities." ASABE Paper No. 2100154. ASABE Annual International Meeting, July 12-16, 2021. DOI: 10.13031/aim.202100154. Posted with permission.

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Fri Jan 01 00:00:00 UTC 2021