养鱼的饲料成本一般占养殖总成本的60%以上,采取适当措施,提高饲料利用率,降低饲料成本,是提高养鱼效益的关键。1、放养优质鱼种。优质鱼种生长速度快,对饲料的消化吸收率高。生产上,一定要注意选择性状优良、体表完整、体质健壮的鱼种。另外,在放养模式上,要突出主养鱼,适当搭 Fish feed costs generally account for more than 60% of the total cost of farming, to take appropriate measures to improve feed utilization, reduce feed costs, is the key to raising fish efficiency. 1, stocking high-quality fish species. High-quality species grow fast, high digestion and absorption of feed. Production, we must pay attention to choose good traits, body surface integrity, robust body of the species. In addition, the stocking mode, to highlight the main fish, appropriate ride