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Effects of naturally oxidized n-3 oil sources on performance, egg quality, yolk fatty acid profile, serum biochemical parameters and liver histopathology in laying Japanese quail.

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Τίτλος: Effects of naturally oxidized n-3 oil sources on performance, egg quality, yolk fatty acid profile, serum biochemical parameters and liver histopathology in laying Japanese quail.
Συγγραφείς: Şengül AY; Department of Animal Science, Faculty of Agriculture, Bingöl University, Bingöl 12000, Türkiye. Electronic address: yusufsengul24@hotmail.com.
Πηγή: Poultry science [Poult Sci] 2026 Oct; Vol. 105 (10), pp. 107422. Date of Electronic Publication: 2026 Jul 12.
Τύπος έκδοσης: Journal Article
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Elsevier Country of Publication: England NLM ID: 0401150 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1525-3171 (Electronic) Linking ISSN: 00325791 NLM ISO Abbreviation: Poult Sci Subsets: MEDLINE
Imprint Name(s): Publication: 2020- : [Cambridge, UK] : Elsevier
Original Publication: Champaign Il : Poultry Science Association
Ιατρικοί όροι (MeSH): Coturnix*/physiology , Coturnix*/blood , Liver*/pathology , Liver*/drug effects , Egg Yolk*/chemistry , Plant Oils*/metabolism , Plant Oils*/administration & dosage , Fatty Acids, Omega-3*/metabolism , Fatty Acids, Omega-3*/administration & dosage , Ovum*/physiology , Ovum*/drug effects, Diet/veterinary ; Animal Feed/analysis ; Fatty Acids/analysis ; Fatty Acids/metabolism ; Dietary Supplements/analysis ; Animals ; Female ; Oxidation-Reduction ; Random Allocation
Περίληψη: Although n-3-rich oils are widely used to improve the fatty acid profile of eggs, their susceptibility to oxidation may reduce their nutritional benefits and adversely affect animal health. However, the effects of naturally oxidized n-3 oil sources in laying Japanese quail remain unclear. This study therefore evaluated the effects of naturally oxidized plant and animal oil sources on productive performance, egg quality, egg yolk fatty acid profile, serum biochemical parameters, and liver histopathology. A total of 160 laying Japanese quail (Coturnix coturnix japonica) were assigned to four dietary treatments containing 1.5% non-oxidized sunflower oil, naturally oxidized chia oil, naturally oxidized flaxseed oil, or naturally oxidized salmon oil, designated as the Control, CO, FO, and SO groups, respectively. Each treatment consisted of five replicates of eight birds, and the experiment lasted 6 weeks. Egg production and feed conversion ratio were not affected by dietary treatment. However, feed intake decreased in the FO group, whereas egg weight decreased in the FO and SO groups (P < 0.05). Among the egg quality traits, yolk index increased in the CO group, while albumen index decreased in the FO group (P < 0.05); the remaining traits were unaffected. Egg yolk n-3 fatty acid content and the n-3/n-6 ratio increased significantly in the CO and FO groups (P < 0.01), whereas yolk cholesterol concentration and serum biochemical parameters did not differ among treatments. Liver histology was normal in the Control group, while the oxidized oil groups exhibited histopathological alterations, predominantly steatosis, with severity varying among oil sources. These findings indicate that naturally oxidized chia and flaxseed oils can enhance the n-3 fatty acid profile of egg yolk, but their potential effects on performance and liver health should be considered. Therefore, both oil source and oxidative status are important practical considerations when formulating n-3-enriched diets for laying Japanese quail.
(Copyright © 2026 The Authors. Published by Elsevier Inc. All rights reserved.)
Contributed Indexing: Keywords: Egg quality; Fatty acids; Liver histopathology; Omega-3; Oxidized oil
Substance Nomenclature: 0 (Plant Oils)
0 (Fatty Acids)
0 (Fatty Acids, Omega-3)
Entry Date(s): Date Created: 20260719 Date Completed: 20260918 Latest Revision: 20260918
Update Code: 20260918
PubMed Central ID: PMC13393451
DOI: 10.1016/j.psj.2026.107422
PMID: 42472499
Βάση Δεδομένων: MEDLINE
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  Data: Although n-3-rich oils are widely used to improve the fatty acid profile of eggs, their susceptibility to oxidation may reduce their nutritional benefits and adversely affect animal health. However, the effects of naturally oxidized n-3 oil sources in laying Japanese quail remain unclear. This study therefore evaluated the effects of naturally oxidized plant and animal oil sources on productive performance, egg quality, egg yolk fatty acid profile, serum biochemical parameters, and liver histopathology. A total of 160 laying Japanese quail (Coturnix coturnix japonica) were assigned to four dietary treatments containing 1.5% non-oxidized sunflower oil, naturally oxidized chia oil, naturally oxidized flaxseed oil, or naturally oxidized salmon oil, designated as the Control, CO, FO, and SO groups, respectively. Each treatment consisted of five replicates of eight birds, and the experiment lasted 6 weeks. Egg production and feed conversion ratio were not affected by dietary treatment. However, feed intake decreased in the FO group, whereas egg weight decreased in the FO and SO groups (P &amp;lt; 0.05). Among the egg quality traits, yolk index increased in the CO group, while albumen index decreased in the FO group (P &amp;lt; 0.05); the remaining traits were unaffected. Egg yolk n-3 fatty acid content and the n-3/n-6 ratio increased significantly in the CO and FO groups (P &amp;lt; 0.01), whereas yolk cholesterol concentration and serum biochemical parameters did not differ among treatments. Liver histology was normal in the Control group, while the oxidized oil groups exhibited histopathological alterations, predominantly steatosis, with severity varying among oil sources. These findings indicate that naturally oxidized chia and flaxseed oils can enhance the n-3 fatty acid profile of egg yolk, but their potential effects on performance and liver health should be considered. Therefore, both oil source and oxidative status are important practical considerations when formulating n-3-enriched diets for laying Japanese quail.&lt;br /&gt; (Copyright &#169; 2026 The Authors. Published by Elsevier Inc. All rights reserved.)
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        Value: 10.1016/j.psj.2026.107422
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        StartPage: 107422
    Subjects:
      – SubjectFull: Diet veterinary
        Type: general
      – SubjectFull: Animal Feed analysis
        Type: general
      – SubjectFull: Fatty Acids analysis
        Type: general
      – SubjectFull: Fatty Acids metabolism
        Type: general
      – SubjectFull: Dietary Supplements analysis
        Type: general
      – SubjectFull: Animals
        Type: general
      – SubjectFull: Female
        Type: general
      – SubjectFull: Oxidation-Reduction
        Type: general
      – SubjectFull: Random Allocation
        Type: general
      – SubjectFull: Coturnix physiology
        Type: general
      – SubjectFull: Coturnix blood
        Type: general
      – SubjectFull: Liver pathology
        Type: general
      – SubjectFull: Liver drug effects
        Type: general
      – SubjectFull: Egg Yolk chemistry
        Type: general
      – SubjectFull: Plant Oils metabolism
        Type: general
      – SubjectFull: Plant Oils administration & dosage
        Type: general
      – SubjectFull: Fatty Acids, Omega-3 metabolism
        Type: general
      – SubjectFull: Fatty Acids, Omega-3 administration & dosage
        Type: general
      – SubjectFull: Ovum physiology
        Type: general
      – SubjectFull: Ovum drug effects
        Type: general
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      – TitleFull: Effects of naturally oxidized n-3 oil sources on performance, egg quality, yolk fatty acid profile, serum biochemical parameters and liver histopathology in laying Japanese quail.
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              M: 10
              Text: 2026 Oct
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              Y: 2026
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