Persistence of Porcine Coronaviruses in Feed and Feed Ingredients
2016-10
Loading...
View/Download File
Persistent link to this item
Statistics
View StatisticsJournal Title
Journal ISSN
Volume Title
Title
Persistence of Porcine Coronaviruses in Feed and Feed Ingredients
Authors
Published Date
2016-10
Publisher
Type
Thesis or Dissertation
Abstract
Porcine Epidemic Diarrhea Virus (PEDV), Porcine Delta Corona Virus (PDCoV), and Transmissible Gastroenteritis Virus (TGEV) are threats to commercial swine farms and contaminated feed is a risk factor in transmission. The objective of this thesis was to compare the inactivation kinetics of these coronaviruses among feed ingredients, after feed treatments, and on different surfaces. For the feed experiments, ingredients were weighed into containers, inoculated with virus, and exposed to room temperature, 60-90°C, 120-145°C, irradiation treatments, or feed additives. We also determined survival of coronaviruses on surfaces. After each treatment, virus concentration was calculated. The Weibull predictive model was used to characterize inactivation kinetics. Overall, the viruses survived longer in soybean meal than other ingredients. The feed processing treatments varied in their effectiveness, but all provided some virus inactivation. There was no difference in survival among surfaces. In conclusion, this information is useful for improving feed safety to minimize coronavirus transmission.
Keywords
Description
University of Minnesota M.S. thesis. October 2016. Major: Animal Sciences. Advisors: Gerald Shurson, Pedro Urriola. 1 computer file (PDF); viii, 128 pages.
Related to
Replaces
License
Series/Report Number
Funding information
Isbn identifier
Doi identifier
Previously Published Citation
Suggested citation
Trudeau, Michaela. (2016). Persistence of Porcine Coronaviruses in Feed and Feed Ingredients. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/183314.
Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.