饲料投入在整个水产养殖生产成本中占有相当大的比例,随着养殖系统的集约化,饲料中动物蛋白质食量逐渐提高,因而使饲料投入成本日益增加。菲律宾国际水产资源管理中心就降低半精养系统的饲料成本研究出新方法。研究指出,产生最佳经济效益的饲料并 Feed input accounts for a large proportion of the total cost of aquaculture production. With the intensive farming system, feed intake of animal protein gradually increases, thus increasing the cost of feed input. The Philippine International Aquatic Resources Management Center has developed a new approach to reducing the feed costs of semi-intensive systems. Research shows that the best economic benefits of feed and