饶阳县姚庄大队鱼场过去培育草鱼鱼种需要用大量的豆子、豆饼或麸糠等精饲料,这样即增加精料缺少的困难,又增高了鱼种的成本。根据草鱼苗到夏花阶段食性开始转变的道理,决定试验用草浆代替精料,培育鱼种,因此和水产学校的实习生一起进行了试验,取得一定的效果。试验地点是培育鱼种小土池子,七个池面积共五亩,放养草鱼水花八十万尾,白鲢水花四万尾,投喂豆浆十天后,鱼苗长到六至七分,改为投喂草浆,一天喂二次,上午九点一 Raoyang County Yaozhuang brigade fish farm in the past to cultivate grass carp fish species need to use a lot of beans, bean cake or bran feed and other concentrate, so that increase the lack of fine material difficulties, but also increased the cost of fish species. According to the fact that grass carp fry began to change diet in the summer flower stage, we decided to test the use of grass pulp instead of concentrate and cultivate fish species, so we experimented with the interns of fisheries schools and achieved some results. The test site is to cultivate a small soil pond of fish species, the total area of ​​seven pools of five acres, stocking grass carp eight hundred thousand water, silver carp 40,000, fed soybean milk ten days later, the fish grow to six to seven, to vote Feed the straw, twice a day, at 9.1