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浙江省开发养鳗在国内起步最早,而河鳗产量至今却落在兄弟省之后。究其原因,是现用的诸种养鳗模式与本省情况不十分适应,致使生产发展极其缓慢。1986年以来,省水产养殖公司大力推行池塘养鳗2000亩,1987年宁波市引进西德“美茨”法的年产320吨的工厂化养鳗,至今均不理想。本省虽有丰富的鳗苗资源,但室外养殖季节短,室内养殖又短缺工厂余热或地热。面对这一问题,省水产局在权衡如何发挥本省资源优势以弥补固有弱点后,于1987年倡导大水面网箱养鳗,现已初见成效。抽样分析以下六种模式的吨鳗生产成本和技术指标,足以说明大水面网箱养鳗作为商品
Development of eel in Zhejiang province started earliest in China, but the output of river eel has lagged behind in other provinces. The reason is that the existing patterns of keeping eels are not very adapted to the situation in our province, resulting in extremely slow production development. Since 1986, provincial aquaculture companies vigorously promote 2000 acres of eel ponds, in 1987, Ningbo City, the introduction of West Germany, “the United States,” France’s annual output of 320 tons of factory-style eels, so far are not satisfactory. Although the province has a wealth of eel resources, but outdoor breeding season is short, indoor breeding shortage of factory waste heat or geothermal. Faced with this issue, the provincial Bureau of Fisheries in the balance of how to play the province’s resources to make up for its inherent weaknesses, in 1987 to promote large-eel cage eels, has achieved initial success. Sampling analysis of the following six models of tons eel production costs and technical indicators, sufficient to explain the large surface of the cage eel as a commodity