Dietary Pyridoxine Requirements of Coho Salmon (Oncorhynchus kisutch) Post-Smolts
A 10-week feeding trial was conducted to investigate the dietary pyridoxine requirements of coho salmon (Oncorhynchus kisutch) post-smolts with an initial mean body weight of 180.22 ± 0.41 g. Seven diets were prepared with gradient pyridoxine levels of 0.32, 1.25, 2.56, 4.08, 8.24, 16.02, and 32.32 ...
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| Format: | Article |
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Wiley
2024-01-01
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| Series: | Aquaculture Nutrition |
| Online Access: | http://dx.doi.org/10.1155/2024/3862563 |
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| author | Hairui Yu Xinyue Zhang Ziyi Yuan Leyong Yu Youzhi Zhao Lingyao Li |
| author_facet | Hairui Yu Xinyue Zhang Ziyi Yuan Leyong Yu Youzhi Zhao Lingyao Li |
| author_sort | Hairui Yu |
| collection | DOAJ |
| description | A 10-week feeding trial was conducted to investigate the dietary pyridoxine requirements of coho salmon (Oncorhynchus kisutch) post-smolts with an initial mean body weight of 180.22 ± 0.41 g. Seven diets were prepared with gradient pyridoxine levels of 0.32, 1.25, 2.56, 4.08, 8.24, 16.02, and 32.32 mg/kg, respectively, and each diet was assigned to three replication groups of 10 fish. The results revealed that coho salmon fed the diet with pyridoxine supplementation gained more final body weight (FBW), specific growth rate (SGR), and better feed conversion ratio (FCR). FBW and SGR of the fish fed the diet with 8.24 mg/kg pyridoxine were significantly higher than those of the other groups (P<0.05). An inverse trend was observed for FCR, which was the lowest in fish fed the diet with 8.24 mg/kg pyridoxine. The gradient pyridoxine levels did not yield any statistically (P>0.05) significant impact on the whole-body composition including moisture, ash, crude lipid, and crude protein. The hepatic pyridoxine concentration, aspartate aminotransferase (AST), and alanine aminotransferase (ALT) activities increased significantly with dietary pyridoxine levels increasing from 0.32 to 4.08 mg/kg (P<0.05) and plateaued after that (P>0.05). The coho salmon fed the diet with 8.24 mg/kg pyridoxine achieved the maximum superoxide dismutase and catalase, as well as the minimum total cholesterol, triglyceride, and malondialdehyde. Broken line analysis of SGR, FCR, AST, and ALT activities reflected the optimal dietary pyridoxine requirements for coho salmon post-smolts from 3.92 to 7.08 mg/kg diet. |
| format | Article |
| id | doaj-art-47346d8658d942d0998de32d9ca7122c |
| institution | Kabale University |
| issn | 1365-2095 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Aquaculture Nutrition |
| spelling | doaj-art-47346d8658d942d0998de32d9ca7122c2025-02-03T01:38:16ZengWileyAquaculture Nutrition1365-20952024-01-01202410.1155/2024/3862563Dietary Pyridoxine Requirements of Coho Salmon (Oncorhynchus kisutch) Post-SmoltsHairui Yu0Xinyue Zhang1Ziyi Yuan2Leyong Yu3Youzhi Zhao4Lingyao Li5Key Laboratory of Biochemistry and Molecular Biology in Universities of Shandong (Weifang University)Key Laboratory of Biochemistry and Molecular Biology in Universities of Shandong (Weifang University)Key Laboratory of Biochemistry and Molecular Biology in Universities of Shandong (Weifang University)Key Laboratory of Biochemistry and Molecular Biology in Universities of Shandong (Weifang University)Weifang Centre for the Promotion of Scientific and Technological InnovationShandong Collaborative Innovation Center of Coho Salmon Health Culture Engineering TechnologyA 10-week feeding trial was conducted to investigate the dietary pyridoxine requirements of coho salmon (Oncorhynchus kisutch) post-smolts with an initial mean body weight of 180.22 ± 0.41 g. Seven diets were prepared with gradient pyridoxine levels of 0.32, 1.25, 2.56, 4.08, 8.24, 16.02, and 32.32 mg/kg, respectively, and each diet was assigned to three replication groups of 10 fish. The results revealed that coho salmon fed the diet with pyridoxine supplementation gained more final body weight (FBW), specific growth rate (SGR), and better feed conversion ratio (FCR). FBW and SGR of the fish fed the diet with 8.24 mg/kg pyridoxine were significantly higher than those of the other groups (P<0.05). An inverse trend was observed for FCR, which was the lowest in fish fed the diet with 8.24 mg/kg pyridoxine. The gradient pyridoxine levels did not yield any statistically (P>0.05) significant impact on the whole-body composition including moisture, ash, crude lipid, and crude protein. The hepatic pyridoxine concentration, aspartate aminotransferase (AST), and alanine aminotransferase (ALT) activities increased significantly with dietary pyridoxine levels increasing from 0.32 to 4.08 mg/kg (P<0.05) and plateaued after that (P>0.05). The coho salmon fed the diet with 8.24 mg/kg pyridoxine achieved the maximum superoxide dismutase and catalase, as well as the minimum total cholesterol, triglyceride, and malondialdehyde. Broken line analysis of SGR, FCR, AST, and ALT activities reflected the optimal dietary pyridoxine requirements for coho salmon post-smolts from 3.92 to 7.08 mg/kg diet.http://dx.doi.org/10.1155/2024/3862563 |
| spellingShingle | Hairui Yu Xinyue Zhang Ziyi Yuan Leyong Yu Youzhi Zhao Lingyao Li Dietary Pyridoxine Requirements of Coho Salmon (Oncorhynchus kisutch) Post-Smolts Aquaculture Nutrition |
| title | Dietary Pyridoxine Requirements of Coho Salmon (Oncorhynchus kisutch) Post-Smolts |
| title_full | Dietary Pyridoxine Requirements of Coho Salmon (Oncorhynchus kisutch) Post-Smolts |
| title_fullStr | Dietary Pyridoxine Requirements of Coho Salmon (Oncorhynchus kisutch) Post-Smolts |
| title_full_unstemmed | Dietary Pyridoxine Requirements of Coho Salmon (Oncorhynchus kisutch) Post-Smolts |
| title_short | Dietary Pyridoxine Requirements of Coho Salmon (Oncorhynchus kisutch) Post-Smolts |
| title_sort | dietary pyridoxine requirements of coho salmon oncorhynchus kisutch post smolts |
| url | http://dx.doi.org/10.1155/2024/3862563 |
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