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鱼种是养鱼的物质基础,鱼种培育是养鱼生产的重要环节之一。要把小规格、瘦弱的鱼种养成膘肥体壮的大规格鱼种,关键在于秋季培育。1.改善生活环境 培育鱼种的鱼池经几个月的饲养,其水质逐渐老化,溶氧降低,饵料生物减少,致病微生物及有害物质增多,对鱼种生长不利,特别是个体小的鱼种生长受到限制,草鱼在这种水体中易患病。因此,应改善鱼种生活的水体环境:①将原池水放出1/3～1/2,再加注新水;②施肥培水;③每亩鱼池用10～15kg生石灰,加水溶化后全池均匀泼洒,半月1次;④也可转池培育,新鱼池按常规清塘消毒,培肥水质后再放鱼种。
Fish species is the material basis for fish farming, fish breeding is an important part of fish production. It is important to cultivate the small size and emaciated fingerlings in the large-sized species that grow strong and grow well in autumn. 1. To improve the living environment Cultivation of fish species fish ponds after several months of breeding, its water quality gradually aging, dissolved oxygen reduction, biological reduction of food, pathogenic microorganisms and harmful substances increased, detrimental to the growth of fish, especially small fish Growth is restricted and grass carp is predisposed to this water body. Therefore, it is necessary to improve the water environment for the species life: ① The original pool of water is released 1/3 ~ 1/2, then add new water; ② fertilize and cultivate water; ③ 10 ~ 15kg of lime per mu of pond, Evenly sprinkle, half a month 1; ④ can also be transferred pool cultivation, the new pond according to the conventional Qing Tong disinfection, fertilizer and then put the fish species.