(接上期)b.水质培育:培育池在投苗前10天左右,彻底清塘,清塘按常规方法进行。5天后注入新水。之后每亩施入发酵过的绿肥或人畜禽粪肥等200公斤左右,以培养浮游动物。放苗后,由于乌鳢的摄食量很大,排泄量也较大,需加强水质观察和控制,适时换入新水,以防水质过浓和老化。c.放养密 (Continued) b. Water quality training: nursery pond in the vote before 10 days or so, thoroughly clear pond, clear pond according to conventional methods. 5 days after the injection of new water. Afterwards, about 200 kg of fermented green manure, manure, manure, etc. are applied to each mu to cultivate zooplankton. Fangmiao, due to a large amount of food intake, excretion is also greater, the need to strengthen the observation and control of water quality, timely replacement of fresh water to prevent excessive water and aging. c. stocking density