Testing the plastic-wrapped composting system to dispose of swine mortalities during an animal disease outbreak

dc.contributor.author Costa, Tiago
dc.contributor.author Akdeniz, Neslihan
dc.contributor.author Gates, Richard
dc.contributor.author Lowe, James
dc.contributor.author Zhang, Yuanhui
dc.contributor.department Animal Science
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2021-07-01T23:00:40.000
dc.date.accessioned 2021-08-14T00:16:57Z
dc.date.available 2021-08-14T00:16:57Z
dc.date.copyright Fri Jan 01 00:00:00 UTC 2021
dc.date.embargo 2022-04-19
dc.date.issued 2021-04-19
dc.description.abstract <p>Composting has been used to dispose of animal mortalities and infected materials, such as manure and feed, during major animal disease outbreaks. In this study, we adapted the plastic-wrapped mortality composting system developed by the Canadian Food Inspection Agency during the 2004 highly pathogenic avian influenza outbreak to compost swine mortalities. The goals of the study were to evaluate the performance of the plastic-wrapped composting system to dispose of swine mortalities and to field test its ability to eliminate the spread of airborne pathogens through the aeration ducts. Two cover materials, ground cornstalks and woodchips, were tested using passively and actively aerated composting sheds. The mortalities were inoculated with <em>Salmonella</em> spp. and vaccine strains of <em>Bovine herpesvirus-1</em> and <em>Bovine viral diarrhea virus</em>. Air samples collected from the upper aeration duct (air outlet) during the first 10 d of composting were negative for <em>Salmonella</em> and the viruses tested, which indicated that aerosol transmission of the pathogens was limited. The aeration plenum placed under the mortalities helped to keep conditions aerobic, as O2 concentrations of both passively and actively aerated test units were above 11%. Actively aerated cornstalks had the highest degree-hours (1,462 °C h d−1), which was followed by passively aerated cornstalks (1,312 °C h d−1), actively aerated woodchips (1,303 °C h d−1), and passively aerated woodchips (1,062 °C h d−1). After a 7-wk composting period, all three pathogens were inactivated based on quantitative polymerase chain reaction test results. The mortalities were not inoculated with the <em>African swine fever virus</em>, but temperature data showed that if they were, the system had the potential to eliminate this virus.</p>
dc.description.comments <p>This is the peer-reviewed version of the following article: Costa, Tiago, Neslihan Akdeniz, Richard S. Gates, James Lowe, and Yuanhui Zhang. "Testing the plastic‐wrapped composting system to dispose of swine mortalities during an animal disease outbreak." <em>Journal of Environmental Quality </em>2021, which has been published in final form at DOI: <a href="https://doi.org/10.1002/jeq2.20235" target="_blank">10.1002/jeq2.20235</a>. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/1227/
dc.identifier.articleid 2512
dc.identifier.contextkey 23628400
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/1227
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/3wxal00v
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/1227/2021_GatesRichard_TestingPlastic.pdf|||Fri Jan 14 19:16:59 UTC 2022
dc.source.uri 10.1002/jeq2.20235
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Foreign animal disease
dc.subject.keywords livestock
dc.subject.keywords composting
dc.subject.keywords airborne pathogen
dc.subject.keywords swine
dc.title Testing the plastic-wrapped composting system to dispose of swine mortalities during an animal disease outbreak
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication a61fa792-56f2-4397-8a9c-8cbde8d5c3f1
relation.isOrgUnitOfPublication 85ecce08-311a-441b-9c4d-ee2a3569506f
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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