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要使亲鱼发育成熟并达到催产的目的,在很大程度上取决于外界的饲养条件。因此,必须重视亲鱼的培育工作。对亲鱼的饲养管理一定要抓住三个环节、即产后、冬季、春季三个阶段。 (1)产后阶段亲鱼产卵后。体力消耗很大,因此,产卵后要抓紧亲鱼的培育,尽快地使其恢复体力。鲢、的亲鱼池在这一阶段应保持水质肥沃,使浮游生物大量繁殖生长。池塘施肥应根据水色而定,做到少施、勤施,看水施肥。一般平均每月每亩为750—1000公斤,并适当加些新水,防止泛塘。肥料要因地制宜。鲢鱼池以培育浮游植物为主,一般施人粪尿70％。牛粪30％,水色以黄绿色为好。鳙鱼池以培育浮游动物为主,施人粪尿
To mature broodstock and achieve the purpose of oxytocutamination, largely depends on the external conditions of breeding. Therefore, we must attach importance to the cultivation of broodstock. The broodstock feeding and management must seize the three links, namely, postpartum, winter, spring three stages. (1) postpartum broodstock after spawning. Strong physical exertion, therefore, pay close attention to broodstock after spawning, as soon as possible to restore their strength. Silver carp, the parent fish pond at this stage should maintain a fertile water quality, so that plankton multiply and grow. Pond fertilization should be based on color, so less facilities, ground facilities, water fertilization. The average monthly per acre 750-1000 kg, and appropriate to add some new water to prevent Pan Tong. Fertilizer to suit local conditions. Silver carp pool to nurture phytoplankton-based, general manure excreted 70%. 30% cow dung, aqua yellow to green as well. Pomfret pond to nurture zooplankton mainly Shi Shi manure