把配合饲料投入水中必然会使部分营养物质损耗。损耗量的多少依赖于多种因素,一方面取决于工厂生产配合饲料的方式和原料的特性,另一方面与配合饲料在水中滞留时间长短有关。在计算鱼类投饵标准和确定有机物质对池水可能造成的污染时,了解关于饵料不可避免的损耗量的概念是必要的。测定饵料由于机械扩散所造成的损耗相当复 The compound feed into the water will inevitably make some nutrients loss. The amount of consumption depends on a variety of factors, depending on the one hand, the way the factory produces feed and the characteristics of raw materials, on the other hand, with the length of stay in the water feed. The concept of unavoidable depletion of feed is necessary to calculate the fish feed criteria and to determine the possible contamination of the water by organic matter. Determination of food due to mechanical diffusion caused by the loss of quite complex