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潮汕地区1993年初从欧洲引进了几千万尾欧洲鳗苗进行养殖,大部分养殖失败,但也有少数养殖场养殖成功,于去年初上市。笔者总结了潮汕地区养殖欧洲鳗的一些成功经验与失败教训,供养殖单位参考。 一、欧洲鳗的特性 白仔鳗体圆型、个体较大,体重在0.2—0.4g间,肥满度在2.0以上。成鳗的肥满度也较高,比日本鳗粗短些,两者外观很相似。欧洲鳗分泌粘液较少,皮肤薄,易看到鳃丝。 欧洲鳗喜清水,对环境适应能力较差。不耐高温耐低温,6℃时尚能摄食,10℃即可增重,生长发育适温为
Chaoshan Region introduced tens of millions of European eel fry from Europe in early 1993 for breeding, most of which failed. However, a few farms succeeded in breeding and were listed at the beginning of last year. The author summarizes some successful experiences and failure lessons of breed European eel in Chaoshan region for reference of breeding unit. First, the characteristics of European eel Aberdeen body round, larger, weighing 0.2-0.4g, fatness at 2.0 or more. Eel angiogenesis is also higher than the Japanese eels stubborn, the two look very similar. European eel secretion less mucus, thin skin, easy to see gill filaments. European eel hi water, poor adaptability to the environment. Not resistant to high temperature resistant to low temperature, 6 ℃ fashion can eat, 10 ℃ to gain weight, growth and development of suitable temperature