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1、养殖新品种必须适应当地的自然环境。养殖外地引进品种因其产自异地,特别要注意它的生活习性和繁殖习性,包括水温、盐度、池塘底质、生长期、饲料来源等。若有某一因子与当地自然条件有一定差异,就会导致养殖失败。一般来说,引进品种适应性广,养殖成功可能性也大。2、养殖新品种必须适应市场销路。外地引进的新品种,即使它营养价值高、口味好,
1, breeding new varieties must adapt to the local natural environment. Breeding imported varieties because of their production in different places, with particular attention to its habits and breeding habits, including water temperature, salinity, pond sediment, growth period, feed sources. If there is a certain factor and the local natural conditions are some differences, it will lead to breed failure. In general, the introduction of varieties of wide adaptability, breeding possibilities are also large. 2, breeding new varieties must adapt to market sales. The introduction of new varieties abroad, even if it is highly nutritious, taste good,