Acclimation to heat during incubation. 1. Embryonic morphological traits, blood biochemistry, and hatching performance

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dc.contributor.authorYalçin S.
dc.contributor.authorÇabuk M.
dc.contributor.authorBruggeman V.
dc.contributor.authorBabacanoglu E.
dc.contributor.authorBuyse J.
dc.contributor.authorDecuypere E.
dc.contributor.authorSiegel P.B.
dc.date.accessioned2019-10-26T23:57:33Z
dc.date.available2019-10-26T23:57:33Z
dc.date.issued2008
dc.departmentEge Üniversitesien_US
dc.description.abstractEggs obtained from broiler breeders at 32 (young), 42 (middle aged), and 65 wk (old) were used to measure the effects of heat acclimation during incubation on morphological, physiological, and metabolic traits at internal pipping (IP) and at hatch. All eggs were from the same stock, and hatching performance was also evaluated. Eggs from each breeder age were incubated at control (CONT) or 38.5°C for 6 h daily from d 10 to 18 of incubation (HA). On d 10 after heat exposure and on d 14, absolute and proportional weights were significantly lower for HA than CONT embryos. By the time of hatching, HA chicks were heavier than CONT chicks, which suggested accelerated growth. This effect was consistent across ages. Liver and heart weights were lower for HA than CONT chicks. At IP, pH was similar for HA and CONT embryos, whereas pO2 and Na + were significantly higher and pCO2, HCO3 ?, and K+ significantly lower for HA than CONT embryos. Blood pH was higher in embryos from older than for younger and mid-aged parents at IP. At hatch there was no effect of heat acclimation for blood HCO 3?, Na+, and K+ levels, whereas plasma triglyceride and T3 levels were higher and plasma uric acid, glucose, and lipid peroxidation levels were lower for HA than CONT chicks. Embryonic mortality was similar among parental ages for CONT. In contrast for HA, embryonic mortality from older parents was higher than for younger and middle-aged parents. A delay in external pipping and hatching time with high incubation temperature was consistent across the breeder ages. It was concluded that lower blood pCO2, HCO3?, K+, and higher pO2 at IP stage, plus increased plasma triglyceride concentrations at hatch, indicate adaptive responses of embryos. ©2008 Poultry Science Association Inc.en_US
dc.description.sponsorshipFirat University Scientific Research Projects Management Unit: 2005 ZRF 039 155 O 044en_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 F.W.O.-Vlaanderen (Belgium). --en_US
dc.identifier.doi10.3382/ps.2007-00435en_US
dc.identifier.endpage1228en_US
dc.identifier.issn0032-5791
dc.identifier.issue6en_US
dc.identifier.pmid18493014en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage1219en_US
dc.identifier.urihttps://doi.org/10.3382/ps.2007-00435
dc.identifier.urihttps://hdl.handle.net/11454/21042
dc.identifier.volume87en_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.relation.ispartofPoultry Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBlood biochemistryen_US
dc.subjectEmbryonic growthen_US
dc.subjectHeat acclimationen_US
dc.subjectHeat stressen_US
dc.subjectParental ageen_US
dc.titleAcclimation to heat during incubation. 1. Embryonic morphological traits, blood biochemistry, and hatching performanceen_US
dc.typeArticleen_US

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