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配方依赖的是营养素,不是原料配方技术,主要依赖于两个表格,一个是营养需要量的数据,另一个是饲料的原料数据。鱼虾对营养的需求,理论上都是可以去定量的。这是数量营养学的理论,是营养学的基础。我们简单说这个鱼粉好,或者那个鱼粉不好,主要是基于鱼粉里一些营养成分含量。营养学的一个基本原理是可加性,即营养素是可加的。如果我们高度依赖某一种原料,实际上是表明营养素是不可加的。比如说某种鱼赖氨酸的需要量为1.8%,这1.8%可以来自各种原料,也可以来自氨基酸添加物。可加性在配方设计时表现为原料间的可替代性,如果原料间失去了可替代性,就失去了配合饲料配方设计的意义。
The recipe relies on nutrients, not the raw recipe technology, which relies on two tables, one for nutrient requirements and the other for feedstock feedstock data. The nutritional needs of fish and shrimp, in theory, can go to quantitative. This is the theory of quantity nutrition, is the basis of nutrition. We simply say that the fishmeal is good, or that the fishmeal is not good, mainly based on the content of some nutrients in fishmeal. One of the basic principles of nutrition is additivity, that is, nutrients are additive. If we rely heavily on a particular ingredient, we actually show that nutrients are not addictive. For example, a fish lysine needs 1.8%, 1.8% can come from a variety of raw materials, but also from amino acid additives. Additiveness is manifested in the design of the formula as a substitute between the raw materials, if the loss of substitutability between raw materials, it lost the meaning of formulation formula formulation.