Effects of Fluctuating Temperatures on Isowean Pigs

dc.contributor.author Harmon, Jay
dc.contributor.author Xin, Hongwei
dc.contributor.author Zhang, Qiang
dc.contributor.author Harmon, Jay
dc.contributor.author Xin, Hongwei
dc.contributor.author Puma, Manuel
dc.contributor.author Harris, D.L.
dc.contributor.author Gramer, Marie
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-13T03:54:34.000
dc.date.accessioned 2020-06-29T22:43:56Z
dc.date.available 2020-06-29T22:43:56Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2000
dc.date.embargo 2012-12-10
dc.date.issued 2000-01-01
dc.description.abstract <p>This study quantifies responses of isowean pigs (10 to 12 days of age, PIC breed) to potential in-transit temperature fluctuations for 54 h, followed by a 14-day growth period under thermoneutrality. The 54-h temperature regimens included a constant air temperature of 26.7°C (as control) and three cyclic air temperatures of 26.7 ± 2.8°C, 26.7 ± 5.6°C and 26.7 ± 8.3°C, all using woodshavings bedding atop rigid board insulation. The pigs received an average dosage of 0.91 kg/pig water replacement supply during the 54-h treatment period, and ad-libitum feeding and watering during the growth period. Pigs in all three treatments and the control had similar growth performance, physiological, and energetic responses during both treatment and growth periods. At the end of the treatment period, the pigs had elevated concentrations of hematocrit, plasma protein, blood urea nitrogen, sodium and chloride, but declined concentration of glucose (P < 0.05). Potassium and bicarbonate levels remained relatively constant (P > 0.05). Concentrations of the blood constituents returned to normal during the growth period. The results suggest that the isowean pigs respond well to air temperature fluctuations of up to ±8.3°C around the thermoneutral condition of 26.7°C air temperature coupled with woodshavings bedding.</p>
dc.description.comments <p>This article is from <a href="http://elibrary.asabe.org/abstract.asp?aid=2722&t=3&dabs=Y&redir=&redirType=" target="_blank"><em>Transactions of the ASAE</em></a> 43, no. 2 (2000): 433–438.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/95/
dc.identifier.articleid 1087
dc.identifier.contextkey 3526147
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/95
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1768
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/95/Harmon_2000_EffectsFluctuatingTemperatures.pdf|||Sat Jan 15 02:33:52 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Transportation
dc.subject.keywords Cyclic temperature
dc.subject.keywords Isowean pigs
dc.subject.keywords Physiological responses
dc.subject.keywords Bioenergetics
dc.title Effects of Fluctuating Temperatures on Isowean Pigs
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 863ffed7-5274-46d6-95cc-47c7d0d5b6ab
relation.isAuthorOfPublication 36e0a8ce-fa2e-4df4-9f67-8d1717122650
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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