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一、苗种质量 由于目前黄鳝的人工养殖尚未普及,养殖技术较难掌握,农户养鳝主要依靠野外捕捞和市场收购来获得鳝种。有许多养殖户总是把收购来的鳝苗直接投入养殖池中,殊不知这其中存在许多弊端。因为鳝苗在入池前体表携带着大量的病菌,有的已经生病,特别是钓伤的鳝苗或从不法商贩手里购来用糖精或米汤喂过的鳝苗。这些鳝苗再入水养殖,不几天就会大量死亡,成活率极低。为获得更好的养殖效益,在鳝苗入池前一定要严格挑选、消毒。要求鳝苗体质健壮、无伤无病、体表光滑,体色以金黄或带棕红为佳。苗种规格不能过小,苗种体小摄食能力差,增重不快,当年往往不能收益。另外,鳝苗规格要力求整齐,大小尽可能一致,不同规格的苗种应分池放养,以免争食互相残杀,影响生长和成活率。在鳝种入池前应用4％的食盐水浸洗5～10分钟进行消毒,杀灭病菌和寄生虫,以防感染。
First, the seed quality Due to the current artificial cultivation of eel has not yet spread, farming techniques more difficult to grasp, farmers rely mainly on field eel fishing and market acquisition to get eel species. There are many farmers always put the acquisition of eel seedlings directly into the pond, everyone knows there are many drawbacks. Because eel seedlings in the pool before the table carrying a large number of bacteria, and some have been sick, especially the wounds of eel seedlings or bought from unscrupulous traders with saccharin or rice soup fed eel seedlings. These eel seedlings into the water breeding, a few days will be a large number of deaths, survival rate is very low. In order to obtain better breeding benefits, eel seedlings into the pool must be strictly selected, disinfected. Eel seedlings require physical fitness, non-injury disease-free, smooth surface, body color to golden brown or red is better. Seed size can not be too small, poor seedling feeding capacity, weight gain unpleasant, then often can not benefit. In addition, the specifications of the eel seedlings should be neat, the size of the same as possible, different specifications of the seed stocking should be sub-pool, so as to avoid fighting food kill each other, affecting growth and survival rate. In the eel into the pool before the application of 4% saline immersion 5 to 10 minutes to disinfect, kill germs and parasites to prevent infection.