Effect of air temperature physiology and productive performance of pigs during growing and finishing phases

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dc.contributor.authorOliveira, R. F. [UNESP]
dc.contributor.authorMoreira, R. H. R. [UNESP]
dc.contributor.authorAbreu, M. L. T.
dc.contributor.authorGionbelli, M. P.
dc.contributor.authorTeixeira, A. O.
dc.contributor.authorCantarelli, V. S.
dc.contributor.authorFerreira, R. A.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Lavras (UFLA)
dc.contributor.institutionUniv Fed Sao Joao Rei
dc.date.accessioned2019-10-03T18:19:17Z
dc.date.available2019-10-03T18:19:17Z
dc.date.issued2018-01-01
dc.description.abstractThirty-six castrated male pigs were used to determine the influence of thermal environment and reduction of consumption on performance and carcass composition. Animals were housed in two climate chambers. In one, animals were in thermal comfort (TN) (22 degrees C), and in the other, pigs were under heat stress (HS) (34 degrees C). Animals were distributed in a randomized block design, making three treatments (TN, HS and animals in thermal comfort with food consumption paired with that observed in HS (PFTN)), with six replicates and two animals per experimental unit. Data were obtained on performance and carcass composition. The weight gains of HS and PFTN animals were reduced by 40.5% and 34.7%, respectively, reflecting a reduction of 13.2% in the final weight of PFTN animals. Triiodothyronine concentration was not affected by heat, but there was an increase in lymphocyte numbers in PFTN animals. The HS and PFTN animals showed lower hot carcass weight. However, there were no effects on hot carcass yield and relative weights of heart, lung and spleen. Heat stress compromised performance. The negative effects of high temperature on pigs include reduction in feed intake and changes in physiology.en
dc.description.affiliationUniv Estadual Paulista, Anim Sci Dept, BR-14884900 Sao Paulo, SP, Brazil
dc.description.affiliationUniv Fed Lavras, Anim Sci Dept, BR-37200000 Lavras, MG, Brazil
dc.description.affiliationUniv Fed Sao Joao Rei, Anim Sci Dept, BR-36307352 Sao Joao Del Rei, MG, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Anim Sci Dept, BR-14884900 Sao Paulo, SP, Brazil
dc.description.sponsorshipFederal University of Lavras - Minas Gerais / Brazil
dc.format.extent627-635
dc.identifierhttp://dx.doi.org/10.4314/sajas.v48i4.4
dc.identifier.citationSouth African Journal Of Animal Science. Hatfield: South African Journal Of Animal Sciences, v. 48, n. 4, p. 627-635, 2018.
dc.identifier.doi10.4314/sajas.v48i4.4
dc.identifier.issn0375-1589
dc.identifier.lattes6899226322073487
dc.identifier.orcid0000-0002-6243-0968
dc.identifier.urihttp://hdl.handle.net/11449/184007
dc.identifier.wosWOS:000446682900004
dc.language.isoeng
dc.publisherSouth African Journal Of Animal Sciences
dc.relation.ispartofSouth African Journal Of Animal Science
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectEnvironment
dc.subjectheat stress
dc.subjectpair feed
dc.subjectpig growth
dc.subjectpig production
dc.titleEffect of air temperature physiology and productive performance of pigs during growing and finishing phasesen
dc.typeArtigo
dcterms.rightsHolderSouth African Journal Of Animal Sciences
unesp.author.lattes6899226322073487[7]
unesp.author.orcid0000-0002-6243-0968[7]

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