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一、室内培育 刚孵出的仔鱼应避免在强光下培育,一般在室内培育10天左右,全长可达5mm,所用培育池为3m3左右的水泥池,放苗密度为2万尾/m3,培育过程中保持微流水,在仔鱼垂直游动时期保持微充气,使之悬浮于水中,仔鱼水平游动后,停止充气以减少仔鱼能量消耗。在孵出3天后,鱼苗开口摄食,以槽皱臂尾轮虫作为开口饵料,投饵量掌握在第二天早晨投饵前每毫升水中有2个-10个轮虫为宜,室内培育水质标准为水温15℃-20℃,pH7.8-8.5,D.O≥4mg/L,光照500Lx-800Lx,室内培育成活率为30％-35％。
First, the indoor incubation newly hatched larvae should be avoided under strong light cultivation, generally indoors for about 10 days, the total length of up to 5mm, the use of incubation ponds for about 3m3 cement pool, the density of Liao Miao 20,000 / m3 Maintaining microfluidic water during cultivation, maintaining micro-aeration in the vertical swimming period of the larvae and suspending it in the water. After the larvae swim horizontally, the aeration is stopped to reduce the energy consumption of the larvae. Three days after hatching, fry open mouth feeding, Brachionus calyciflorus as the opening bait, feeding amount to grasp the next morning before feeding per milliliter of water, there are 2 -10 rotifers is appropriate to cultivate indoor water quality The standard water temperature of 15 ℃ -20 ℃, pH7.8-8.5, DO ≥ 4mg / L, light 500Lx-800Lx, indoor incubation survival rate of 30% -35%.