Effect of Olive Leaves or Marigold Petal Extract on Oxidative Stress, Gut Fermentative Activity, and Mucosa Morphology in Broiler Chickens Fed a Diet Rich in n-3 Polyunsaturated Fats
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- Pirman Tatjana
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana
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- Rezar Vida
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana
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- Vrecl Milka
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana
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- Salobir Janez
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana
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- Levart Alenka
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana
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Description
<p>An experiment in broilers was conducted to investigate the effect of olive (Olea europea) leaves and marigold (Calendula officinalis) petal extract supplementation on oxidative stress, characteristics of intestinal contents, and on the morphology of the small intestine. Oxidative stress was induced by a n-3 polyunsaturated fatty acids rich diet. 1-day-old male broiler chickens, Ross 308, were housed in a deep litter system. After the first 21 days, animals were randomly divided into three groups of 16 animals in two replicates and fed, until slaughter on day 39, a diet that contained 7% linseed oil. Control diet (Cont) remained unsupplemented, while both experimental diets were supplemented with olive leaves (OliveEx) or marigold petal (MarigEx) extracts. Oxidative stress was evaluated in blood and liver by measuring markers of lipid peroxidation (malondialdehyde (MDA), isoprostanes), rate of DNA damage in lymphocytes and in blood (comet assay, 8-hydroxy-2′deoxyguanosine (8-OHdG)), and activity of antioxidant and liver enzymes in blood. In different parts of the intestine, levels of short chain fatty acids (SCFA), and viscosity of intestinal contents were measured, and the health of the gastrointestinal tract was assessed using histological measurements. OliveEx significantly (p<0.05) decreased the MDA and 8-OHdG concentration in plasma, and the level of ethanoic acid in small intestinal contents and total SCFA in caecum, indicating improved oxidative status and increased microbial activity in the intestine. MarigEx significantly (p<0.05) decreased the rate of lymphocyte DNA damage and the crypt depth in duodenum, indicating potentially beneficial effects on the immune system and the health of the small intestine. In conclusion, dietary OliveEx and MarigEx supplementation improved some markers of oxidative stress and intestinal health. However, positive effects could be more pronounced in more unfavorable environmental conditions or in cases of diseases, but further studies are needed.</p>
Journal
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- The Journal of Poultry Science
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The Journal of Poultry Science 58 (2), 119-130, 2021
Japan Poultry Science Association
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Keywords
Details 詳細情報について
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- CRID
- 1390006352515871360
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- NII Article ID
- 130008029806
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- NII Book ID
- AA11564513
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- ISSN
- 13490486
- 13467395
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- NDL BIB ID
- 031412071
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed