Heat Production of Nursery and Growing Piglets

dc.contributor.author Brown-Brandl, Tami
dc.contributor.author Xin, Hongwei
dc.contributor.author Nienaber, John
dc.contributor.author Eigenberg, Roger
dc.contributor.author Xin, Hongwei
dc.contributor.author Hayes, Morgan
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-13T13:48:15.000
dc.date.accessioned 2020-06-29T22:33:25Z
dc.date.available 2020-06-29T22:33:25Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2013
dc.date.embargo 2013-08-28
dc.date.issued 2013-07-01
dc.description.abstract <p>Heat and moisture production (HMP) values are used to size ventilation fans in animal housing. The HMP values that are currently published in the ASABE standards were from data published in 1975. This study is one of a series of studies being conducted to update the HMP values for the ASABE and ASHRAE (American Society of Heating Refrigeration, and Air Conditioning Engineers) Standards. This study focused on the HMP measurements on nursery and growing pigs in the weight range of 8 to 44 kg. Ninety-six nursery pigs were randomly assigned to one of 24 pens (4 pigs /pen) and subjected to one of four temperatures between 25 and 35°C. Forty-eight growing pigs were penned in groups of 2 and subjected to one of four temperatures between 18 and 33°C. Heat production rate (HP) was determined using indirect calorimetry methods, after the animals were acclimated for a minimum of 1 week to a particular temperature. Each measurement was made on a pen of animals (either 2 or 4 pigs/pen) over a 21-hr period. It was determined that HP decreased and moisture production (MP) increased as environmental temperature increased. In the nursery age piglets, the level of feed consumption had a greater impact on HP than temperature. Dynamic measurements showed a diurnal HP pattern; HP was higher during light period than during dark period, with an immediate increase as the lights were turned on.</p>
dc.identifier archive/lib.dr.iastate.edu/abe_eng_conf/319/
dc.identifier.articleid 1344
dc.identifier.contextkey 4521539
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_conf/319
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/338
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_conf/319/2013_BrownBrandlTM_HeatProductionNursery.pdf|||Fri Jan 14 23:32:54 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Heat production
dc.subject.keywords Heat stress
dc.subject.keywords Swine
dc.subject.keywords Dynamic heat production
dc.subject.keywords Ventilation loads
dc.subject.keywords Circadian rhythm
dc.title Heat Production of Nursery and Growing Piglets
dc.type article
dc.type.genre conference
dspace.entity.type Publication
relation.isAuthorOfPublication 36e0a8ce-fa2e-4df4-9f67-8d1717122650
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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