Oligosaccharides improve the flesh quality and nutrition value of Nile tilapia fed with high carbohydrate diet

Food Chemistry: Molecular Sciences

Mei-Ling Zhang¹  Cheng-Jie Shan²  Fang Qiao²  Zhen-Yu Du²  Zhi-Yong Zhang²  Hong-Xia Wu²  Hong-Bo Lv²  Wei-Jie Li² 

[1] Corresponding author.;Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), College of Life Sciences, East China Normal University, Shanghai 200241, China;

关键词: Oligosaccharide;    Nile tilapia (Oreochromis niloticus);    Flesh quality;    Texture profile analysis;    Intestinal microbiota;    Short-chain fatty acid;   

DOI  :  

来源: DOAJ

【 摘 要 】

High level of carbohydrate in aquafeed could achieve cost-sparing effect, but it may cause adverse effects on flesh quality of aquatic products. An eight-week trial was conducted to investigate whether oligosaccharides-supplementation, including Galacto-oligosaccharides (GOS) and xylo-oligosaccharide (XOS), could systematically improve the growth performance, texture characteristics and nutrition composition of Nile tilapia fed with high-carbohydrate diet. The results indicated that GOS-supplementation improved the amino acid composition, while XOS-supplementation showed beneficial effects on growth performance. High-carbohydrate diet had adverse effects on fillet texture, while oligosaccharide-supplementation regulated the expression of muscle development-related genes to help restoring muscle texture properties. Furthermore, either high-carbohydrate or addition of oligosaccharides could change the intestinal microbiota composition and their metabolites. Further correlation analysis suggested that intestinal microbiota may account for the improvement in fish growth condition and texture characteristics. Application of oligosaccharides may be an innovative strategy for flesh quality modulation in aquaculture.

【 授权许可】

Unknown