近年来,牙鲆的工厂化养殖在北方地区已全面铺开。为了降低费用,提高效益,需要采取以下技术经济措施: 一、提高牙鲆的养殖规格及养殖成活率。第一,要造就良好的养殖环境,筛选优质饲料,促进鱼苗快速生长。体现在生产上要做到“四早”,即:早育苗、早搬苗、早疏散、早养成。最好于5月中旬就动手搬苗。在养殖过程中注意选择最佳饲料,以降低饲料系数,提高生长速 In recent years, the factory culture of flounder in the northern region has been fully rolled out. In order to reduce costs and improve efficiency, the need to take the following technical and economic measures: First, improve the cultivation of Japanese flounder size and breeding survival rate. First, to create a good breeding environment, screening of high-quality feed, and promote the rapid growth of fry. Reflected in the production to be “four early”, that is: early nursery, early move Miao, early evacuation, early develop. The best move in mid-May Miao Miao. In the breeding process, pay attention to choose the best feed, in order to reduce the feed factor, increase the growth rate