Ammonia Emissions from Two Empty Broiler Houses with Built-Up Litter

dc.contributor.author Gates, Richard
dc.contributor.author Wheeler, Eileen
dc.contributor.author Zajaczkowski, Jennifer
dc.contributor.author Xin, Hongwei
dc.contributor.author Xin, Hongwei
dc.contributor.author Liang, Yi
dc.contributor.author Casey, Kenneth
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-13T04:11:38.000
dc.date.accessioned 2020-06-29T22:37:31Z
dc.date.available 2020-06-29T22:37:31Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2008
dc.date.embargo 2012-12-13
dc.date.issued 2008-01-01
dc.description.abstract <p>Ammonia (NH3) emissions from broiler houses have been monitored almost exclusively while the house is populated with live birds. Many American growers utilize litter for more than one flock. Between flocks, various litter management practices are used to prepare this "built-up" litter for the next flock, including some degree of house ventilation to keep the indoor ammonia concentration low. Ammonia volatilized from the litter is emitted to the environment during the downtime. This ammonia emission should be accounted for in the determination of a facility's annual ammonia emission inventory. In the study reported here, ammonia emissions were monitored from two recently depopulated broiler houses in Pennsylvania using built-up litter managed for five consecutive flocks. Average house air temperature during the monitoring period was 10.2°C, well below the typical temperature during flock production. Emission was calculated whenever a house exhaust fan was running. The results revealed ammonia emissions from the houses ranging from 212 to 1107 g h-1. The daily emission rate (ER) was highest on day 2, coinciding with the first harrowing of the litter, and then decreased over subsequent days. These average values during downtime were about one-quarter of the ER values for market-size birds observed during flock grow-out in the same houses over the previous year. The reduced ER during the cleanout period was anticipated, since the built-up litter was at a lower temperature than during grow-out and there was no further fresh manure addition contributing to potential ammonia volatilization. Observed variation between these two houses with identical management and construction showed that monitoring a single house may not accurately predict empty house emissions, with unidentified factors other than management being responsible for this variability.</p>
dc.description.comments <p>This article is from <em><a href="http://elibrary.asabe.org/abstract.asp?aid=24215&t=3&dabs=Y&redir=&redirType=" target="_blank">Transactions of the ASABE</a> </em>51, no. 1 (2008): 219–225.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/152/
dc.identifier.articleid 1147
dc.identifier.contextkey 3535479
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/152
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/888
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/152/Xin_2008_AmmoniaEmissionsTwo.pdf|||Fri Jan 14 20:37:06 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Air quality
dc.subject.keywords Chicken
dc.subject.keywords Manure management
dc.subject.keywords NH3
dc.subject.keywords Poultry
dc.subject.keywords Ventilation
dc.title Ammonia Emissions from Two Empty Broiler Houses with Built-Up Litter
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication a61fa792-56f2-4397-8a9c-8cbde8d5c3f1
relation.isAuthorOfPublication 36e0a8ce-fa2e-4df4-9f67-8d1717122650
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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