亲鱼经过越冬后,多数较瘦弱,为防止亲鱼性腺发育停止,甚至吸收退化,抓住春季有利时机,进行强化培育,尽快恢复体质,促进其顺利产卵必须注意以下四要点: 一要狠抓一个“早”字。亲鱼越冬后,水温在5～10℃,就要及早根据亲鱼的性腺发育情况,调整放养密度和品种,进行分池,亲鱼池面积一般0.2～ Broodstock after winter, the majority of the more emaciated, in order to prevent the parent fish gonadal development to stop, or even absorb degradation, seize the favorable opportunity of the spring, intensive breeding, restore physical fitness as soon as possible and promote their smooth spawning must pay attention to the following four points: First, pay close attention to one “Early” word. Broodstock after winter, the water temperature at 5 ~ 10 ℃, it is necessary to early according to broodstock gonadal development, adjust the stocking density and variety, sub-pool, broodstock pond area is generally 0.2 ~