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Interspecies Variation in Yolk Selenium Concentrations Among Eggs of Free-Living Birds: the Effect of Phylogeny

dc.authorid Surai, Peter/0000-0002-5012-8681
dc.authorid Pappas, Athanasios C./0000-0002-9586-8106
dc.authorid Cassey, Phillip/0000-0002-2626-0172
dc.authorscopusid 8643947000
dc.authorscopusid 8633434800
dc.authorscopusid 7005199156
dc.authorscopusid 7202962383
dc.authorscopusid 6701623283
dc.authorscopusid 7005648561
dc.authorscopusid 7005648561
dc.authorwosid Karadas, Filiz/K-2750-2016
dc.authorwosid Surai, Peter/T-6183-2019
dc.authorwosid Pappas, Athanasios C./Aad-7262-2019
dc.contributor.author Pappas, Athanasios C.
dc.contributor.author Karadas, Filiz
dc.contributor.author Surai, Peter F.
dc.contributor.author Wood, Nicholas A. R.
dc.contributor.author Cassey, Phillip
dc.contributor.author Bortolotti, Gary R.
dc.contributor.author Speake, Brian K.
dc.date.accessioned 2025-05-10T17:29:36Z
dc.date.available 2025-05-10T17:29:36Z
dc.date.issued 2006
dc.department T.C. Van Yüzüncü Yıl Üniversitesi en_US
dc.department-temp SAC, Avian Sci Res Ctr, Anim Hlth Grp, Auchincruive KA6 5HW, Ayr, Scotland; Univ Yuzuncu Yil, Dept Anim Sci, TR-65080 Van, Turkey; Szent Istvan Univ, Dept Nutr, H-2103 Godollo, Hungary; Waterfowl Consulting & Res, Sherborne DT9 5BX, Dorset, England; Univ Birmingham, Sch Biosci, Birmingham B15 2TT, W Midlands, England; Univ Saskatchewan, Dept Biol, Saskatoon, SK S7N 5E2, Canada en_US
dc.description Surai, Peter/0000-0002-5012-8681; Pappas, Athanasios C./0000-0002-9586-8106; Cassey, Phillip/0000-0002-2626-0172 en_US
dc.description.abstract Birds deposit the trace element selenium (Se) into their eggs because an adequate supply of this micronutrient is essential for embryonic development. Although there is considerable interest in egg Se with regard to topics as diverse as poultry nutrition and environmental pollution, data on the natural levels of Se in eggs of free-living avian species are currently very limited. To address this lack of information, we measured the yolk Se concentrations in eggs of 14 avian species collected in the wild. The concentrations (ng/g wet yolk) varied from 394 to 2238, with a mean value of 1040. Values (means +/- SD) for eggs from the UK, Canada and New Zealand were, respectively, 522 +/- 192 (3 species), 1194 +/- 584 (8 species) and 1147 +/- 200 (3 species). However, analysis by appropriate statistical models indicates that the effect of phylogenetic relatedeness among these species is so significant that it removes any effect of geographical location. In particular, species belonging to the order Passeriformes displayed significantly higher yolk Se levels than Non-Passeriforme species. In marked contrast to the free-living species, our previously published data indicate that the Se concentration in egg yolk of the domestic chicken is only about 100 ng/g wet yolk when the birds are maintained on a basal commercial diet without supplementary Se. The results reveal an extensive interspecies variation in yolk Se (across a 6-fold range) for eggs collected from the wild. Nevertheless, the Se concentrations in the yolks of all the free-living species were far higher (4-21-fold) than that achieved in the yolk of the domestic chicken consuming a standard basal diet. (c) 2006 Elsevier GrnbH. All rights reserved. en_US
dc.description.woscitationindex Science Citation Index Expanded
dc.identifier.doi 10.1016/j.jtemb.2006.03.001
dc.identifier.endpage 160 en_US
dc.identifier.issn 0946-672X
dc.identifier.issue 3 en_US
dc.identifier.pmid 16959592
dc.identifier.scopus 2-s2.0-33748181918
dc.identifier.scopusquality Q2
dc.identifier.startpage 155 en_US
dc.identifier.uri https://doi.org/10.1016/j.jtemb.2006.03.001
dc.identifier.uri https://hdl.handle.net/20.500.14720/12404
dc.identifier.volume 20 en_US
dc.identifier.wos WOS:000241048400002
dc.identifier.wosquality Q3
dc.language.iso en en_US
dc.publisher Elsevier Gmbh, Urban & Fischer verlag en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.subject Selenium en_US
dc.subject Egg en_US
dc.subject Yolk en_US
dc.subject Chicken en_US
dc.subject Wild Birds en_US
dc.subject Passeriformes en_US
dc.title Interspecies Variation in Yolk Selenium Concentrations Among Eggs of Free-Living Birds: the Effect of Phylogeny en_US
dc.type Article en_US

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