罗非鱼虽然原产非洲,但是经过引种试验之后,早在1957年,它就已经在我国大量生长,并且以生产成本低、生产量大等优势大量出口,发展到目前,罗非鱼也是我国最具有国际竞争力的品种之一。为了更好地满足国际市场需求,近年来,很多养殖户还搞起了非常严格的无公害健康养殖。在这方面, Tilapia native to Africa, but after the introduction test, as early as 1957, it has grown in our country, and low production costs, production and other advantages of large-scale export, the development of tilapia is also our country One of the most internationally competitive varieties. In order to better meet the needs of the international market, in recent years, many farmers also engage in a very strict pollution-free health farming. in this aspect,