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在秋季渔业生产中,将鱼种进行分养,培育大规格鱼种,有利于促鱼膘,防病增产,是提高鱼种越冬成活率的关键。 1 清塘。鱼池养殖鱼种2～3个月后,一般水质已老化,天然饲料减少。硫化氢等有害物质及病原菌增多。因此,入秋后应将鱼种转入经过清塘消毒的池塘进行培育,以利安全越冬。在水源和鱼塘周转有困难的地方,可将鱼种全部转出暂养,对原塘每667m~2用生石灰75～100kg消毒,并按常规
In the autumn fishery production, it is the key to improve the live survival rate of fish species by dividing the fish species, cultivating the large-scale fish species, promoting the catfish and preventing and increasing the disease. 1 clear pond. Fish ponds breeding species 2 to 3 months later, the general water quality has been aging, reducing natural feed. Hydrogen sulfide and other harmful substances and pathogens increased. Therefore, the species should be transferred into the Qing Tong after disinfection of ponds for breeding, in order to facilitate safe winter. In the water and fish ponds turnaround difficulties, all the fish species can be transferred out of custody, the original pond every 667m ~ 2 with lime 75 ~ 100kg disinfection, and according to conventional