芜萍、小浮萍和紫背萍通常是培育草鱼种的主要饲料来源。几年来,我场主要靠这三种浮萍作草鱼种的饲料,每年培育出大规格草鱼种10万多尾,创产值10万多元,获利润8万多元。现将主要技术措施介绍如下: 一、腾出专塘培育浮萍饲料是养鱼生产的主要物质基础,要培育出膘肥体壮的大规格草鱼种,关键是首先解决好饲料来源,因此,我场根据草鱼种的生长阶段和三种浮萍对草鱼种各个生长阶段的适口性,腾出优质鱼塘进行专塘培育浮萍,其方法是:1.萍塘的选择,萍类植物适宜在静水环境中生长,所以, Wu Ping, Xiao duckweed and purple backs are usually the main source of feed for cultivating grass carp species. Over the past few years, my field mainly rely on these three kinds of duckweed grass carp feed, each year breed large grass carp species more than 100,000 tail, the output value of more than 100,000 yuan, a profit of more than 80,000 yuan. Now the main technical measures are introduced as follows: First, the release of Tong pond nurturing duckweed feed is the main material basis for fish production, nurturing strong size grass carp species, the key is to first solve the source of feed, therefore, My field according to grass carp species growth stage and three kinds of duckweed grass carp species palatability at various stages of development, freeing high-quality fish ponds to cultivate duckweed pond, its method is: 1 Pingtang choice Ping plants suitable Grow in still water environment, so,