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Xu Y, Gong Y, Li S, Zhou Y, Ma Z, Yi G, Chen N, Wang W, Huang X. Inositol Inclusion Affects Growth, Body Composition, Antioxidant Performance, and Lipid Metabolism of Largemouth Bass ( Micropterus salmoides). AQUACULTURE NUTRITION 2024; 2024:9944159. [PMID: 38283889 PMCID: PMC10817803 DOI: 10.1155/2024/9944159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/25/2023] [Accepted: 01/05/2024] [Indexed: 01/30/2024]
Abstract
The present study explored the effects of inositol on growth performance, body composition, antioxidant performance, and lipid metabolism of largemouth bass (Micropterus salmoides). Six isonitrogenous and isolipidic diets containing 0 mg/kg (G1, control), 125 mg/kg (G2), 250 mg/kg (G3), 375 mg/kg (G4), 500 mg/kg (G5), and 625 mg/kg (G6) inositol were prepared and fed to cultured fish (initial weight: 110 ± 1 g) for 8 weeks in recirculating the aquaculture systems. The results indicated that compared with G1 group, the weight gain rate (WGR), specific growth rate (SGR), and feed efficiency rate (FER) in the G3 group were significantly higher. The crude lipid content of the whole fish and the liver of cultured fish was significantly reduced with increasing dietary inositol inclusion. However, no significant effects on moisture, crude protein, and ash contents of fish were observed among the different groups. Dietary inositol supplementation significantly increased muscular crude protein. However, muscular total lipid contents were decreased when the inclusion level was higher than 250 mg/kg (G3-G6 groups). As dietary inositol supplemental level increased, serum triglyceride (TG), and cholesterol (TC) contents showed an increasing trend and reached the maximum value in the G3 group. Additionally, serum low-density lipoprotein cholesterol (LDL-C) in G2, G3, G4, and G5 groups was significantly upregulated by increasing inositol. While, there was no significant change in serum high-density lipoprotein cholesterol (HDL-C) among the treatments. Inositol inclusion also significantly reduced the serum alkaline phosphatase (AKP), glutamic-pyruvic transaminase (ALT), and glutamic-oxaloacetic transaminase (AST) activities as well as serum malondialdehyde (MDA) content but significantly increased serum catalase (CAT), superoxide dismutase (SOD) activities, and total antioxidant capacity (T-AOC). Compared with the control group, the activities of hepatic total lipase (TL) and lipoprotein lipase (LPL) were significantly elevated in the G3, G4, and G5 groups. Above all, dietary inositol supplementation could improve growth performance and antioxidant capacity, and reduce the liver fat content of largemouth bass, and the optimal supplementation level of inositol in feed is estimated to be 250.31-267.27 mg/kg.
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Affiliation(s)
- Yinglin Xu
- Key Laboratory of Agriculture Ministry for Freshwater Aquatic Genetic Research, Shanghai Ocean University, Shanghai 201306, China
| | - Ye Gong
- Key Laboratory of Agriculture Ministry for Freshwater Aquatic Genetic Research, Shanghai Ocean University, Shanghai 201306, China
| | - Songlin Li
- Key Laboratory of Agriculture Ministry for Freshwater Aquatic Genetic Research, Shanghai Ocean University, Shanghai 201306, China
- China-ASEAN “The Belt and Road” Joint Laboratory of Mariculture Technology, Ministry of Science and Technology of China, Shanghai Ocean University, Shanghai 201306, China
- National Demonstration Center on Experiment Teaching of Fisheries Science, Shanghai Ocean University, Shanghai 201306, China
| | - Yue Zhou
- Key Laboratory of Agriculture Ministry for Freshwater Aquatic Genetic Research, Shanghai Ocean University, Shanghai 201306, China
| | - Zhixiao Ma
- Key Laboratory of Agriculture Ministry for Freshwater Aquatic Genetic Research, Shanghai Ocean University, Shanghai 201306, China
| | - Ganfeng Yi
- Fantastic Victory (Shenzhen) Technological Innovation Group Co. Ltd, Shenzhen 518054, China
| | - Naisong Chen
- Key Laboratory of Agriculture Ministry for Freshwater Aquatic Genetic Research, Shanghai Ocean University, Shanghai 201306, China
- China-ASEAN “The Belt and Road” Joint Laboratory of Mariculture Technology, Ministry of Science and Technology of China, Shanghai Ocean University, Shanghai 201306, China
- National Demonstration Center on Experiment Teaching of Fisheries Science, Shanghai Ocean University, Shanghai 201306, China
| | - Weilong Wang
- Key Laboratory of Agriculture Ministry for Freshwater Aquatic Genetic Research, Shanghai Ocean University, Shanghai 201306, China
- China-ASEAN “The Belt and Road” Joint Laboratory of Mariculture Technology, Ministry of Science and Technology of China, Shanghai Ocean University, Shanghai 201306, China
- National Demonstration Center on Experiment Teaching of Fisheries Science, Shanghai Ocean University, Shanghai 201306, China
| | - Xuxiong Huang
- Key Laboratory of Agriculture Ministry for Freshwater Aquatic Genetic Research, Shanghai Ocean University, Shanghai 201306, China
- China-ASEAN “The Belt and Road” Joint Laboratory of Mariculture Technology, Ministry of Science and Technology of China, Shanghai Ocean University, Shanghai 201306, China
- National Demonstration Center on Experiment Teaching of Fisheries Science, Shanghai Ocean University, Shanghai 201306, China
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Jia R, Hou Y, Feng W, Nomingerel M, Li B, Zhu J. Multi-Omics Analysis to Understand the Effects of Dietary Proanthocyanidins on Antioxidant Capacity, Muscle Nutrients, Lipid Metabolism, and Intestinal Microbiota in Cyprinus carpio. Antioxidants (Basel) 2023; 12:2095. [PMID: 38136215 PMCID: PMC10740959 DOI: 10.3390/antiox12122095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/07/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023] Open
Abstract
Proanthocyanidins (Pros), a natural polyphenolic compound found in grape seed and other plants, have received significant attention as additives in animal feed. However, the specific mechanism by which Pros affect fish health remains unclear. Therefore, the aim of this study was to investigate the potential effects of dietary Pro on common carp by evaluating biochemical parameters and multi-omics analysis. The results showed that Pro supplementation improved antioxidant capacity and the contents of polyunsaturated fatty acids (n-3 and n-6) and several bioactive compounds. Transcriptomic analysis demonstrated that dietary Pro caused an upregulation of the sphingolipid catabolic process and the lysosome pathway, while simultaneously downregulating intestinal cholesterol absorption and the PPAR signaling pathway in the intestines. Compared to the normal control (NC) group, the Pro group exhibited higher diversity in intestinal microbiota and an increased relative abundance of Cetobacterium and Pirellula. Furthermore, the Pro group had a lower Firmicutes/Bacteroidetes ratio and a decreased relative abundance of potentially pathogenic bacteria. Collectively, dietary Pro improved antioxidant ability, muscle nutrients, and the diversity and composition of intestinal microbiota. The regulation of lipid metabolism and improvement in muscle nutrients were linked with changes in the intestinal microbiota.
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Affiliation(s)
- Rui Jia
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; (R.J.); (Y.H.); (W.F.)
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China;
| | - Yiran Hou
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; (R.J.); (Y.H.); (W.F.)
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China;
| | - Wenrong Feng
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; (R.J.); (Y.H.); (W.F.)
| | | | - Bing Li
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; (R.J.); (Y.H.); (W.F.)
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China;
| | - Jian Zhu
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; (R.J.); (Y.H.); (W.F.)
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China;
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Lu W, Yu H, Liang Y, Zhai S. Evaluation of Methanotroph ( Methylococcus capsulatus, Bath) Bacteria Protein as an Alternative to Fish Meal in the Diet of Juvenile American Eel ( Anguilla rostrata). Animals (Basel) 2023; 13:ani13040681. [PMID: 36830467 PMCID: PMC9952290 DOI: 10.3390/ani13040681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
This study was conducted to evaluate the effects of replacing fish meal (FM) with methanotroph (Methylococcus capsulatus, Bath) bacteria protein (MBP) in the diets of the juvenile American eel (Anguilla rostrata). Trial fish were randomly divided into the MBP0 group, MBP6 group, MBP12 group, and MBP18 group fed the diets with MBP replacing FM at levels of 0, 6%, 12%, and 18%, respectively. The trial lasted for ten weeks. There were no significant differences in weight gain or feed utilization among the MBP0, MBP6, and MBP12 groups (except for the feeding rate in the MBP12 group). Compared with the MBP0 group, the D-lactate level and diamine oxidase activity in the serum were significantly elevated in the MBP12 and MBP18 groups. In terms of non-specific immunity parameters in serum, the alkaline phosphatase activity was significantly decreased in the MBP18 group, and the complement 3 level was significantly elevated in the MBP12 and MBP18 groups. The activities of lipase and protease in the intestine were significantly decreased in the MBP12 and MBP18 groups. Compared with the MBP0 group, the total antioxidant capacity and activities of superoxide dismutase, catalase, and glutathione peroxidase in the intestine were significantly decreased in the MBP18 group, while the malondialdehyde level was significantly increased. The villus height, muscular thickness, and microvillus density were significantly decreased in the MBP12 and MBP18 groups. There were no significant differences in the foresaid parameters between the MBP0 group and the MBP6 group. The intestinal microbiota of the MBP6 group was beneficially regulated to maintain similar growth and health status with the MBP0 group. The adverse effects on the intestinal microbiota were reflected in the MBP18 group. In conclusion, MBP could successfully replace 6% of FM in the diet without adversely affecting the growth performance, serum biochemical parameters, and intestinal health of juvenile American eels.
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Affiliation(s)
- Wenqi Lu
- Engineering Research Center of the Modern Industry Technology for Eel, Ministry of Education, Fisheries College of Jimei University, Xiamen 361021, China
| | - Haixia Yu
- Engineering Research Center of the Modern Industry Technology for Eel, Ministry of Education, Fisheries College of Jimei University, Xiamen 361021, China
| | - Ying Liang
- Engineering Research Center of the Modern Industry Technology for Eel, Ministry of Education, Fisheries College of Jimei University, Xiamen 361021, China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China
| | - Shaowei Zhai
- Engineering Research Center of the Modern Industry Technology for Eel, Ministry of Education, Fisheries College of Jimei University, Xiamen 361021, China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China
- Correspondence: ; Tel.: +86-592-6181420
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