Dietary micronutrient composition affects fillet texture and muscle cell size in Atlantic salmon ( Salmo salar )
Dietary micronutrient composition affects fillet texture and muscle cell size in Atlantic salmon ( Salmo salar )
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膳食微量营养素成分影响大西洋鲑鱼（Salmo salar）的鱼片质地和肌肉细胞大小
DOI：
10.1111/anu.13051
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发表时间：
2020
影响因子：
3.5
通讯作者：
Hamre K
中科院分区：
文献类型：
--
作者：
Hamre K
在过去的20年里，植物成分已成为大西洋鲑鱼饲料的主要成分。这改变了饲料的营养成分，营养物质的生物利用度，也许还有营养物质的代谢。植物性饮食也含有更多的抗营养素。欧盟资助的项目ARRAINA重新评估了对大西洋鲑鱼饲料补充微量营养素的建议，本研究比较了根据NRC（2011）补充微量营养素的饮食（对照饮食，100% NP（营养包））与根据新建议补充的饮食（新NP）。吡哆醇，泛酸，烟酸，维生素C，锌和硒的组织浓度显着较高，铜是较低的大西洋鲑鱼喂养的饮食与新的NP相比，控制鱼。新NP还对生长、降低肌肉硬度和增加肌肉细胞大小产生了几乎显著的影响，并且它影响了肌肉中含氮代谢物的代谢。虽然我们不能确定是哪种微量营养素产生了这些作用，但B族维生素是可能的候选者，因为它们是中间代谢的介质，并已被证明会影响一些受影响的代谢物。
During the past 20 years, plant ingredients have taken over as the main constituents in feed for Atlantic salmon. This has changed the nutrient composition of the feeds, the bioavailability of nutrients and perhaps nutrient metabolism. Plant‐based diets also contain more anti‐nutrients. The EU‐funded project ARRAINA re‐evaluated recommendations for micronutrient supplementation to Atlantic salmon feeds, and the present study compared a diet supplemented with micronutrients according to NRC (2011) (control diet, 100% NP (nutrient package)) with a diet supplemented according to the new recommendations (New NP). Tissue concentrations of pyridoxine, pantothenic acid, niacin, vitamin C, Zn and Se were significantly higher; and Cu was lower in Atlantic salmon fed the diet with the New NP compared to the control fish. The New NP also gave a near significant effect on growth, decreased muscle firmness and increased muscle cell size, and it affected metabolism of nitrogen‐containing metabolites in the muscle. While we cannot be certain which micronutrient(s) gave these effects, the B vitamins are probable candidates, since they are mediators of intermediary metabolism and have been shown to influence some of the affected metabolites.