水产养殖的实质是一种以“物”换“物”的过程,也就是通过水产养殖,把饲料或肥料转化为水产品的过程。水产养殖单位面积产量的高低和经济效益的好坏,在很大程度上取决于使用的饲料是否合理,投饲的技术是否科学。对于水产养殖来说,正确合理地选用饲料,科学合理地投喂,是促进养殖 The essence of aquaculture is a process in which things are replaced by “things”, that is, the conversion of feed or fertilizers into aquatic products through aquaculture. The level of production per unit area of ​​aquaculture and the quality of the economic benefits depend to a large extent on the reasonableness of the feed used and whether the technique of feeding is scientific. For aquaculture, the correct and reasonable choice of feed, scientific and reasonable feeding, is to promote culture