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80年代后期,世界各国水产养殖有一些新的经验和特点,可归纳为如下几方面。 1.鱼虾类居养殖首位 水产养殖的主要对象可分为鱼、虾、贝、藻四大类,而鱼、虾类居首要地位,这不仅是因为鱼、虾类的经济产量占2/3以上,而且作为水产养殖的研究对象亦居首位。研究内容广泛而深入,涉及营养、生理、生长、繁殖、遗传养殖技术和疾病防治等。
In the late 1980s, some new experiences and characteristics of aquaculture in various countries in the world can be summarized as follows. 1. Fish and shrimps farming The first major aquaculture can be divided into four major categories of fish, shrimp, shellfish and algae, while fish and shrimps are the primary targets, not only because the economic output of fish and shrimps accounts for 2 / 3 above, but also as the research object of aquaculture also ranks first. The research is extensive and in-depth, involving nutrition, physiology, growth, reproduction, genetic breeding techniques and disease prevention and control.