Effects of dietary natural vitamin E supplementation on laying performance, egg quality, serum biochemical indices, tocopherol deposition and antioxidant capacity of laying hens
This study was to evaluate the effects of dietary natural vitamin E supplementation on laying performance, egg quality, serum biochemical indices, tocopherol deposition and antioxidant capacity of laying hens. A total of 360 46-week-old Hyline Brown hens were randomly assigned into five treatments c...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-01-01
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| Series: | Italian Journal of Animal Science |
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| Online Access: | http://dx.doi.org/10.1080/1828051X.2021.2002733 |
| _version_ | 1828271870312448000 |
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| author | Haoran Zhao Yueping Chen Shiqi Wang Chao Wen Yanmin Zhou |
| author_facet | Haoran Zhao Yueping Chen Shiqi Wang Chao Wen Yanmin Zhou |
| author_sort | Haoran Zhao |
| collection | DOAJ |
| description | This study was to evaluate the effects of dietary natural vitamin E supplementation on laying performance, egg quality, serum biochemical indices, tocopherol deposition and antioxidant capacity of laying hens. A total of 360 46-week-old Hyline Brown hens were randomly assigned into five treatments consisting of six replicates with 12 hens each for a 9-week feeding trial. Birds were fed a basal diet supplemented with 0, 25, 50, 75, and 100 mg/kg natural vitamin E, respectively. Natural vitamin E linearly increased egg production and egg mass (p < .05), linearly decreased feed conversion ratio (p < .05) and linearly and quadratically increased feed intake (p < .05). The total tocopherol concentration in liver and yolk increased quadratically and linearly with increasing levels of natural vitamin E, respectively (p < .05). A linear decrease in content of serum low-density lipoprotein cholesterol was observed (p < .05). Supplementation of natural vitamin E linearly decreased serum malondialdehyde (MDA) level, linearly increased hepatic total antioxidant capacity (T-AOC) and catalase (CAT) activities, quadratically increased serum CAT activity and linearly and quadratically decreased hepatic MDA accumulation (p < .05). In conclusion, natural vitamin E can enhance laying performance, regulate serum cholesterol concentration, promote tocopherol deposition and improve antioxidant capacity, and dietary supplementation at a dosage of 100 mg/kg was recommended.Highlights Dietary supplementations of natural vitamin E significantly improved laying performance of hens. Dietary supplementations of natural vitamin E significantly increased tocopherol concentration of liver and yolk. Dietary supplementations of natural vitamin E significantly improved antioxidant capacity of hens. |
| first_indexed | 2024-04-13T05:58:44Z |
| format | Article |
| id | doaj.art-8f25e1136471488084896b32b58f2bde |
| institution | Directory Open Access Journal |
| issn | 1594-4077 1828-051X |
| language | English |
| last_indexed | 2024-04-13T05:58:44Z |
| publishDate | 2021-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-8f25e1136471488084896b32b58f2bde2022-12-22T02:59:31ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2021-01-012012254226210.1080/1828051X.2021.20027332002733Effects of dietary natural vitamin E supplementation on laying performance, egg quality, serum biochemical indices, tocopherol deposition and antioxidant capacity of laying hensHaoran Zhao0Yueping Chen1Shiqi Wang2Chao Wen3Yanmin Zhou4College of Animal Science and Technology, Nanjing Agricultural UniversityCollege of Animal Science and Technology, Nanjing Agricultural UniversityCollege of Animal Science and Technology, Nanjing Agricultural UniversityCollege of Animal Science and Technology, Nanjing Agricultural UniversityCollege of Animal Science and Technology, Nanjing Agricultural UniversityThis study was to evaluate the effects of dietary natural vitamin E supplementation on laying performance, egg quality, serum biochemical indices, tocopherol deposition and antioxidant capacity of laying hens. A total of 360 46-week-old Hyline Brown hens were randomly assigned into five treatments consisting of six replicates with 12 hens each for a 9-week feeding trial. Birds were fed a basal diet supplemented with 0, 25, 50, 75, and 100 mg/kg natural vitamin E, respectively. Natural vitamin E linearly increased egg production and egg mass (p < .05), linearly decreased feed conversion ratio (p < .05) and linearly and quadratically increased feed intake (p < .05). The total tocopherol concentration in liver and yolk increased quadratically and linearly with increasing levels of natural vitamin E, respectively (p < .05). A linear decrease in content of serum low-density lipoprotein cholesterol was observed (p < .05). Supplementation of natural vitamin E linearly decreased serum malondialdehyde (MDA) level, linearly increased hepatic total antioxidant capacity (T-AOC) and catalase (CAT) activities, quadratically increased serum CAT activity and linearly and quadratically decreased hepatic MDA accumulation (p < .05). In conclusion, natural vitamin E can enhance laying performance, regulate serum cholesterol concentration, promote tocopherol deposition and improve antioxidant capacity, and dietary supplementation at a dosage of 100 mg/kg was recommended.Highlights Dietary supplementations of natural vitamin E significantly improved laying performance of hens. Dietary supplementations of natural vitamin E significantly increased tocopherol concentration of liver and yolk. Dietary supplementations of natural vitamin E significantly improved antioxidant capacity of hens.http://dx.doi.org/10.1080/1828051X.2021.2002733natural vitamin elaying performancetocopherol concentrationantioxidant capacitylaying hens |
| spellingShingle | Haoran Zhao Yueping Chen Shiqi Wang Chao Wen Yanmin Zhou Effects of dietary natural vitamin E supplementation on laying performance, egg quality, serum biochemical indices, tocopherol deposition and antioxidant capacity of laying hens Italian Journal of Animal Science natural vitamin e laying performance tocopherol concentration antioxidant capacity laying hens |
| title | Effects of dietary natural vitamin E supplementation on laying performance, egg quality, serum biochemical indices, tocopherol deposition and antioxidant capacity of laying hens |
| title_full | Effects of dietary natural vitamin E supplementation on laying performance, egg quality, serum biochemical indices, tocopherol deposition and antioxidant capacity of laying hens |
| title_fullStr | Effects of dietary natural vitamin E supplementation on laying performance, egg quality, serum biochemical indices, tocopherol deposition and antioxidant capacity of laying hens |
| title_full_unstemmed | Effects of dietary natural vitamin E supplementation on laying performance, egg quality, serum biochemical indices, tocopherol deposition and antioxidant capacity of laying hens |
| title_short | Effects of dietary natural vitamin E supplementation on laying performance, egg quality, serum biochemical indices, tocopherol deposition and antioxidant capacity of laying hens |
| title_sort | effects of dietary natural vitamin e supplementation on laying performance egg quality serum biochemical indices tocopherol deposition and antioxidant capacity of laying hens |
| topic | natural vitamin e laying performance tocopherol concentration antioxidant capacity laying hens |
| url | http://dx.doi.org/10.1080/1828051X.2021.2002733 |
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