EN
Effects of Grape (Vitis vinifera L.) Seed Oil and St John’s Wort (Hypericum perforatum L.) Extract Supplementation into Diets of Laying Hens at Different Levels on Performance, Egg Quality and Some Blood Parameters
Abstract
This study set out to determine the effects of dietary supplementation of grape seed oil and Hypericum perforatum L. extract to the laying hens (Lohmann White, 40 weeks of age) on performance, egg quality and some blood parameters. For this purpose, a total of 336 hens were randomly distributed to the control and other treatment groups, 12 replicates/group with 4 hens/replication. Birds were fed with basal diet only (control group) and the basal diet supplemented with different levels (100, 200, 300 mg/kg) of grape seed oil (GSO-1, GSO-2, GSO-3) and Hypericum perforatum L. extract (HPE-1, HPE-2, HPE-3). Dietary treatments had no significant effect on performance parameters. GSO-3 and HPE-1 supplemental groups presented with increased shell weight (p<0.01) while only GSO-1 group showed increased egg albumen index (p<0.01) and Haugh unit (p<0.05). Among blood parameters, except for serum HDL and total protein, the other blood parameters (serum triglyceride, total cholesterol, LDL, AST, Ca and P) were not affected by the treatments. In conclusion, results showed a partial improvement in some egg quality traits, however, further studies are needed to fully investigate the beneficial effects of these additives in laying hens reared under different stresses.
Keywords
Supporting Institution
This study was supported by Atatürk University Rectorate, Scientific Research Projects (BAP) Unit within the scope of project numbered 2012/413
Project Number
2012/413
Thanks
This study was supported by Atatürk University Rectorate, Scientific Research Projects (BAP) Unit within the scope of project numbered 2012/413. I would like to thank the relevant institution and unit.
References
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Details
Primary Language
English
Subjects
Agricultural, Veterinary and Food Sciences
Journal Section
Research Article
Publication Date
March 1, 2020
Submission Date
January 28, 2020
Acceptance Date
March 1, 2020
Published in Issue
Year 2020 Volume: 2 Number: 1
APA
Kılınç, G., & Karaoğlu, M. (2020). Effects of Grape (Vitis vinifera L.) Seed Oil and St John’s Wort (Hypericum perforatum L.) Extract Supplementation into Diets of Laying Hens at Different Levels on Performance, Egg Quality and Some Blood Parameters. International Journal of Science Letters, 2(1), 26-38. https://doi.org/10.38058/ijsl.681424