Feeding diets supplemented with zinc and vitamin A in laying hens: effects on histopathological findings and tissue mineral contents

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dc.authoridHALILOGLU, Seyfullah/0000-0001-8269-9668
dc.authoridORTATATLI, MUSTAFA/0000-0002-3713-813X
dc.contributor.authorKaya, S
dc.contributor.authorOrtatatli, M
dc.contributor.authorHaliloglu, S
dc.date.accessioned2024-09-18T21:03:12Z
dc.date.available2024-09-18T21:03:12Z
dc.date.issued2002
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractThe effects of different dietary levels of zinc and vitamin A on tissue mineral accumulation and histopathological alterations were examined in laying hens. For this purpose, 130 Hisex brown laying hens aged 56 weeks were divided into two main groups. Each group of hens were fed on diets supplemented with two different levels of vitamin A (010 000 IU kg(-1)). Then, laying hens in both of the main groups were subdivided into five treatment groups given different levels of zinc (0, 25, 50, 100, and 200 mg kg(-1)) for 12 weeks. Dietary additions of zinc and/or vitamin A did not significantly affect the zinc concentrations of the pancreas, liver, gizzard, thyroid, and copper concentrations of the pancreas, gizzard, and thyroid. The group fed the highest zinc (200 mg kg(-1)) in the diet had twofold iron concentration in their thyroid tissue compared to the concentration of the control group receiving no extra zinc. Histopathologically, there was slight oedema, degranulation, and vacuolation in exocrine cells and some fibrotic areas in the pancreas and reduced follicular size. Follicular cell hypertrophy and hyperplasia occurred in the thyroids, and gizzard erosions were seen in some cases. (C) 2002 Elsevier Science Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/s0034-5288(02)00095-4
dc.identifier.endpage257en_US
dc.identifier.issn0034-5288
dc.identifier.issue3en_US
dc.identifier.pmid12443682en_US
dc.identifier.scopus2-s2.0-0036901784en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage251en_US
dc.identifier.urihttps://doi.org/10.1016/s0034-5288(02)00095-4
dc.identifier.urihttps://hdl.handle.net/20.500.12483/13303
dc.identifier.volume73en_US
dc.identifier.wosWOS:000179993600009en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherW B Saunders Co Ltden_US
dc.relation.ispartofResearch in Veterinary Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectFemale Domestic-Fowlen_US
dc.subjectChicksen_US
dc.subjectCopperen_US
dc.subjectOxideen_US
dc.subjectIronen_US
dc.subjectDeficiencyen_US
dc.subjectPerformanceen_US
dc.subjectMetabolismen_US
dc.subjectToxicosisen_US
dc.subjectToxicityen_US
dc.titleFeeding diets supplemented with zinc and vitamin A in laying hens: effects on histopathological findings and tissue mineral contentsen_US
dc.typeArticleen_US

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