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ORIGINAL RESEARCH article
Front. Mar. Sci.
Sec. Marine Fisheries, Aquaculture and Living Resources
Volume 12 - 2025 |
doi: 10.3389/fmars.2025.1542173
This article is part of the Research Topic Development of Sustainable Aquafeed: Novel Ingredients and Formulations View all articles
Dietary Lycium barbarum Polysaccharide Modulates Growth Performance, Antioxidant Capacity, and Glucolipid Metabolism in Largemouth Bass (Micropterus salmoides) Fed with High-Carbohydrate Diet
Provisionally accepted- Shanghai Ocean University, Shanghai, China
To investigate the ameliorative effects of Lycium barbarum polysaccharide (LBP) on growth performance, oxidative stress, and glucolipid metabolism in largemouth bass (Micropterus salmoides) fed with high-carbohydrate diets. Fish (41.81±0.36) g were fed on high-carbohydrate diets (15% α-starch) supplemented with 0% (15% α-Starch and no LBP, HLBP), 0.2g/kg LBP (LBP0.2), 0.4g/kg LBP (LBP0.4), 0.6g/kg LBP (LBP0.6) and 0.8g/kg LBP (LBP0.8) for 56 days.An additional low-carbohydrate (10% α-starch) dietary group (10% α-Starch and no LBP, NLBP) was set up and fed for the same 56 days. The final body weight (FBW), weight gain ratio (WGR), and specific growth rate (SGR) of fish in the LBP0.6 group were the highest, and the treatment groups were all significantly higher than in the HLBP group (P < 0.05). The activities of AMS, LPS, and TPS in the intestine and liver were all highest in the LBP0.6 group and significantly higher than in the HLBP group (P < 0.05). In the intestine and liver, the activities of T-AOC, CAT, GSH-PX, and SOD were significantly higher in the LBP0.6 and LBP0.8 groups than in the HLBP group (P < 0.05). The expression of CAT, SOD, and GPX genes were highest in the LBP0.8 group and significantly higher than in the HLBP group (P < 0.05). In the intestine and liver, the expression of IL-1β, IL-8, and TNF-α genes were significantly lower in the LBP0.4, LBP0.6, and LBP0.8 groups than in the HLBP group (P < 0.05); the expression of IL-10 and TGF-β1 genes were significantly higher in the LBP0.6 and LBP0.8 groups than in the HLBP group (P < 0.05). The expression of GK, PFK, and G6P genes were significantly higher in the LBP0.6 and LBP0.8 groups than in the HLBP group (P < 0.05). The expression of ACC, CPT-1, and FAS genes were significantly higher in the LBP0.4, LBP0.6, and LBP0.8 groups than in the HLBP group (P < 0.05).In summary, the addition of 0.6 g/kg LBP was effective in ameliorating the negative effects of a high-carbohydrate diet on largemouth bass.
Keywords: Lycium barbarum polysaccharide1, largemouth bass (Micropterus salmoides)2, Growth performance3, antioxidant capacity4, inflammation response5, glucolipid metabolism6
Received: 09 Dec 2024; Accepted: 27 Jan 2025.
Copyright: © 2025 Qi, He and Zhong. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Guofang Zhong, Shanghai Ocean University, Shanghai, China
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