Effect of breeder age and lighting regimen on growth performance, organ weights, villus development, and bursa of fabricius histological structure in broiler chickens

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dc.contributor.authorEl Sabry, M. I.
dc.contributor.authorYalcin, S.
dc.contributor.authorTurgay-Izzetoglu, G.
dc.date.accessioned2019-10-27T22:29:48Z
dc.date.available2019-10-27T22:29:48Z
dc.date.issued2015
dc.departmentEge Üniversitesien_US
dc.description.abstractThis study was carried out to investigate the effect of breeder age and lighting regimen on performance, some organ weights, villus development, and bursa of fabricius histological structure in broiler chickens. A total of 384 one-day-old chicks were obtained from two Ross broiler breeder flocks at 32 (young; Y) and 49 (old, O) weeks of age. Chicks from each breeder age were reared under 18 h light : 6 h dark (18 L : 6 D) (control; CL) or 14 L : 4 D : 2 L : 4 D (split darkness, SD). Body weight, feed intake, feed conversion ratio, and mortality were measured weekly during the experiment. At 21 days of age, liver, heart, spleen, and bursa of fabricius weights were recorded, gastrointestinal tract and jejunum lengths were measured, and histomorphometry of villi and bursa of fabricius structure were investigated. Interaction between breeder age and lighting regimen was observed, where Y-CL chicks had the lightest body weight from 7 to 35 days (P < 0.05). Neither breeder age nor lighting regimen influenced feed conversion ratio. SD chicks had longer (P < 0.05) gastrointestinal tract and jejunum, and wider villus in comparison to CL chicks. Lower relative spleen weight was observed in CL chicks compared to SD ones (P < 0.05). It was concluded that split darkness lighting regimen could be used for broiler chickens from young breeders to improve live body weight without affecting feed conversion ratio.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK)en_US
dc.description.sponsorshipThe Scientific and Technological Research Council of Turkey (TUBITAK) is deeply acknowledged for its support through the Research Fellowship Program for Foreign Citizens.en_US
dc.identifier.doi10.17221/8076-CJAS
dc.identifier.endpage122en_US
dc.identifier.issn1212-1819
dc.identifier.issn1805-9309
dc.identifier.issn1212-1819en_US
dc.identifier.issn1805-9309en_US
dc.identifier.issue3en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage116en_US
dc.identifier.urihttps://doi.org/10.17221/8076-CJAS
dc.identifier.urihttps://hdl.handle.net/11454/51161
dc.identifier.volume60en_US
dc.identifier.wosWOS:000354765400004en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherCzech Academy Agricultural Sciencesen_US
dc.relation.ispartofCzech Journal of Animal Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectphotoperioden_US
dc.subjectbody weighten_US
dc.subjectgastrointestinal tracten_US
dc.subjecthearten_US
dc.subjectlymphoid organsen_US
dc.subjectmortalityen_US
dc.titleEffect of breeder age and lighting regimen on growth performance, organ weights, villus development, and bursa of fabricius histological structure in broiler chickensen_US
dc.typeArticleen_US

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