Acclimation to heat during incubation: 4. Blood hormones and metabolites in broilers exposed to daily high temperatures

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dc.contributor.authorYalcin, S.
dc.contributor.authorBruggeman, V.
dc.contributor.authorBuyse, J.
dc.contributor.authorDecuypere, E.
dc.contributor.authorCabuk, M.
dc.contributor.authorSiegel, P. B.
dc.date.accessioned2019-10-27T20:46:41Z
dc.date.available2019-10-27T20:46:41Z
dc.date.issued2009
dc.departmentEge Üniversitesien_US
dc.description.abstractThe objective of the present experiment was to study the effects of parental age and heat acclimation of embryos on blood metabolites and hormones of broilers exposed to daily cyclic ambient temperatures from d 21 to 42. Eggs obtained from 32 (younger), 42 (middle-aged), and 65 wk (older) breeders were divided into 2 groups. One group of eggs was incubated at control incubation temperature (ITCONT), whereas the second group was heat-acclimated at 38.5 degrees C for 6 h/d from d 10 to 18 of incubation (ITHA). Chicks were reared at standard brooding temperatures from 1 to 21 d. From d 21 to 42, half of broilers/incubation temperature/parental age was kept as the control (AT(CONT)), whereas the other half was exposed to daily cyclic heat treatment (AT(HIGH)) to impose a stress response. There was a reduction in plasma triiodothyronine (T-3) levels in ITHA broilers. On d 28, plasma T-3 levels were similar regardless of parental age of eggs incubated at ITCONT, whereas ITHA resulted in lower levels of T-3 in broilers from 65 wk parents. At the same age, AT(HIGH) reduced plasma triglycerides with the effect greater for ITHA than ITCONT broilers. Plasma uric acid was also lower for ITHA than ITCONT broilers for the offspring of 65 wk parents on d 28. There was an increase in plasma creatine kinase activity on d 42 in AT(HIGH) broilers regardless of parental age and incubation temperature. Plasma corticosterone was consistently lower for the ITHA than ITCONT treatment, being significant on d 21 and 42. It was concluded that these changes in blood metabolites and hormones may enhance the thermoregulatory ability of ITHA broilers when exposed posthatch to daily high temperatures.en_US
dc.description.sponsorshipTUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [155 O 044]; Ege University Scientific Research ProjectsEge University [2005 ZRF 039]; Fonds Wetenschappelijk Onderzoek-Vlaanderen (Brussels, Belgium)FWOen_US
dc.description.sponsorshipThis research was supported by TUBITAK (project no. 155 O 044) and Ege University Scientific Research Projects (project no. 2005 ZRF 039). Veerle Bruggeman is a postdoctoral fellow of the Fonds Wetenschappelijk Onderzoek-Vlaanderen (Brussels, Belgium).en_US
dc.identifier.doi10.3382/ps.2008-00505en_US
dc.identifier.endpage2013en_US
dc.identifier.issn0032-5791
dc.identifier.issn1525-3171
dc.identifier.issue9en_US
dc.identifier.pmid19687288en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage2006en_US
dc.identifier.urihttps://doi.org/10.3382/ps.2008-00505
dc.identifier.urihttps://hdl.handle.net/11454/42445
dc.identifier.volume88en_US
dc.identifier.wosWOS:000269043600030en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherOxford Univ Pressen_US
dc.relation.ispartofPoultry Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectbroileren_US
dc.subjectheat acclimationen_US
dc.subjectblood metaboliteen_US
dc.subjecthormoneen_US
dc.titleAcclimation to heat during incubation: 4. Blood hormones and metabolites in broilers exposed to daily high temperaturesen_US
dc.typeArticleen_US

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