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鱼苗身体柔嫩、游动缓慢、摄食量少,因此要加强水质、饵料和施肥的综合管理才能促使其速生快长,培育壮苗。一、处理鱼塘,提供优良生活环境在清塘后,鱼苗下塘前1周注入深50厘米水,尔后立即在池角施用基肥。每亩施用腐熟的粪肥(人粪尿、猪粪、牛粪等)300～500公斤,也可施用氨水5公斤,过磷酸钙3～4公斤。经过这样处理的鱼塘,使鱼苗入塘后就能摄食到充足的天然饲料,鱼苗生长快,成活率高,饲养周期短,节省精饲料。
Fry body soft, slow swimming, low food intake, so to strengthen the water quality, food and fertilizer management to promote its fast-growing fast, grow strong seedlings. First, the treatment of fish ponds to provide a good living environment In the clear pond, fry pond next 1 week into the deep 50 cm water, immediately after the base fertilizer in the base fertilizer. Mud manure applied per acre (human waste urine, pig manure, cow dung, etc.) 300 to 500 kg, but also the application of ammonia 5 kg, superphosphate 3 to 4 kg. After this treatment of fish ponds, so that fish ponds into the pond will be able to feed adequate natural feed, fry grow fast, high survival rate, feeding cycle is short, to save the fine feed.