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二、小网箱养鱼养殖对象的选择与放养 1、选择一个合适的养殖对象,要考虑下面几点要求:首先是生长速度快,当年能达到上市的规格;第二是苗种的来源稳定可靠,最好是能就地或就近解决;第三,这个品种有较好的销路和价格,可以得到比较高的经济效益;第四,所需饵料的生产和供应方便、稳定而且有保证;第五,要有比较好的集群性,适应在高密度条件下进行养殖,同时在密度较高时争抢饵料的能力比较强。
Second, the selection and stocking of small cages aquaculture objects 1, select a suitable breeding object, to consider the following requirements: first, the growth rate is high, then to reach the market specifications; the second is the source of seed stability Reliable, it is best to be able to solve locally or nearby; Third, this species has a better market and prices, you can get a higher economic efficiency; Fourth, the required food production and supply convenient, stable and guaranteed; Fifth, to have better clustering, to adapt to the breeding in high-density conditions, while competing for food at higher densities ability.