Effects of Dietary Supplementation of a Resin-Purified Aqueous-Isopropanol Olive Leaf Extract on Meat and Liver Antioxidant Parameters in Broilers
-
Published:2023-09-05
Issue:9
Volume:12
Page:1723
-
ISSN:2076-3921
-
Container-title:Antioxidants
-
language:en
-
Short-container-title:Antioxidants
Author:
Vasilopoulou Konstantina1ORCID, Papadopoulos Georgios A.2ORCID, Lioliopoulou Styliani2, Pyrka Ioanna3, Nenadis Nikolaos3ORCID, Savvidou Soumela4ORCID, Symeon George4ORCID, Dotas Vassilios5ORCID, Panitsidis Ioannis1, Arsenos Georgios2ORCID, Giannenas Ilias1ORCID
Affiliation:
1. Laboratory of Nutrition, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece 2. Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece 3. Laboratory of Food Chemistry and Technology, School of Chemistry, 54124 Thessaloniki, Greece 4. Institute of Animal Science, Hellenic Agricultural Organisation-DEMETER, 58100 Giannitsa, Greece 5. Department of Animal Production, Faculty of Agriculture, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
Abstract
Olive leaves are byproducts οf the agro-industrial sector and are rich in bioactive compounds with antioxidant properties. They could be supplemented in poultry diets powdered or less frequently as extracts to improve performance, health and product quality. The objective of this study was to investigate the possible beneficial effects of an aqueous isopropanol olive leaf extract—purified through filtration (250–25 µm) and a resin (XAD-4)—when supplemented in broiler chickens’ diets, on meat quality parameters, focusing mainly on antioxidant parameters as there is limited published information. For this purpose, four-hundred-and-eighty-day-old broilers were randomly assigned to four dietary treatments: T1 (control: basal diet); T2 (1% olive leaf extract); T3 (2.5% olive leaf extract); T4 (positive control: 0.1% encapsulated oregano oil commercially used as feed additive). At the end of the experimental period (day 42), the birds were slaughtered, and samples from breast, thigh meat and liver were collected for antioxidant parameters evaluation. On day 1, after slaughter, in thigh meat, Malondialdehyde (MDA) was lower in T2 compared to T3, and total phenolic content (TPC) was higher in T2 compared to T3 and T4. Total antioxidant capacity (TAC) was increased in T2 and T4 breast meat compared to the control. In liver, T4 treatment resulted in higher TPC. The lack of dose-dependent effect for olive leaf extract may be attributed to the pro-oxidant effects of some bioactive compounds found in olive leaves, such as oleuropein, when supplemented at higher levels. In summary, it can be inferred that the inclusion of 1% olive leaf extract in the feed of broilers has the potential to mitigate oxidation in broiler meat and maybe enhance its quality.
Funder
European Union and Greek national funds through the Operational Program Competitiveness, Entrepreneurship and Innovation
Subject
Cell Biology,Clinical Biochemistry,Molecular Biology,Biochemistry,Physiology
Reference73 articles.
1. Essential oils as a feed additive in poultry nutrition;Gopi;Adv. Anim. Vet. Sci.,2014 2. Phytogenics as feed additives in poultry production: A review;Yitbarek;Int. J. Adv. Res.,2015 3. Abdelli, N., Solà-Oriol, D., and Pérez, J.F. (2021). Phytogenic feed additives in poultry: Achievements, prospective and challenges. Animals, 11. 4. Ali, A., Ponnampalam, E.N., Pushpakumara, G., Cottrell, J.J., Suleria, H.A., and Dunshea, F.R. (2021). Cinnamon: A natural feed additive for poultry health and production—A review. Animals, 11. 5. Righi, F., Pitino, R., Manuelian, C.L., Simoni, M., Quarantelli, A., De Marchi, M., and Tsiplakou, E. (2021). Plant feed additives as natural alternatives to the use of synthetic antioxidant vitamins on poultry performances, health, and oxidative status: A review of the literature in the last 20 years. Antioxidants, 10.
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|