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本文较详细地介绍了利用海水与海水晶进行20亩池塘的淡化养殖南美白对虾的效果对比试验情况。使用海水淡化养殖的池塘,虾苗淡化成活率90.3%,平均亩产364.7kg,养殖成活率 90.2%,亩毛利润为5616.2元;使用海水晶淡化养殖的池塘,虾苗淡化成活率87.6%,平均亩产 353.4kg,养殖成活率88.7%,亩毛利润为5441.6元。试验结果表明,两者在养殖成活率、生长速度、亩产量、饲料系数等方面均表现出无明显的差别。本文还介绍了淡化养殖南美白对虾操作技术, 对养殖生产者具有一定的参考价值。
This article describes in more detail the comparative experiment on the effects of desalination of Penaeus vannamei using seawater and sea crystals in a 20-mu pond. The use of seawater desalination ponds, shrimp desalination survival rate of 90.3%, average yield of 364.7kg, breeding survival rate of 90.2%, gross profit of 5616.2 yuan per mu; seawater desalination ponds, shrimp desalination survival rate of 87.6% The average yield per mu 353.4kg, breeding survival rate of 88.7%, gross profit 5441.6 yuan. The results showed that there was no obvious difference between the two in terms of the survival rate, growth rate, yield per mu and feed coefficient. This article also describes the desalination of P. vannamei operation techniques, has a certain reference value to the breeding producers.