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鱼类对营养物质的需求和其它动物一样,均需求蛋白质、脂肪、碳水化合物(也称糖类)、维生素和矿物质(也称无机盐)等五大类营养物质。蛋白质是鱼类生长和维持生命的物质基础,从而是评价一种饲料质量高低的主要指标。
The demand for nutrients in fish is the same as that of other animals. They require five major types of nutrients such as protein, fat, carbohydrates (also called sugars), vitamins and minerals (also called inorganic salts). Proteins are the material basis for the growth and maintenance of fish and are therefore the main indicator for evaluating the quality of a feed.