本文建立了鲑鱼干饲料量与其回声能量之间的线性关系,进行了饲料批量(5～400克)和单颗粒的测量。对于一定量的饲料,回声能量依颗粒大小的增加而减少,这种关系能够应用水声测定少量剩余饲料。在检测剩余饲料之前。须估计鲑鱼群体的最大饲料摄入量以作为投饲饥供投饲料的份量。 This paper established a linear relationship between the amount of salmon feed and its echo energy, and the feed batch (5 ~ 400 g) and single particle measurement were performed. For a given amount of feed, the energy of the echo decreases as the size of the particle increases, a relationship that allows the acoustic measurement of a small amount of remaining feed. Before testing the rest of the feed. The maximum feed intake of the salmon population must be estimated as part of the feeding feed.