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凡孵化池内壁粗糙的须用砂轮打磨光滑,放卵时掌握合适的密度,一般每立方米水放卵80万粒左右;孵化用水要清洁无污染,并有较大流量;可在蓄水池中泼洒生石灰浆调节,使pH值保持在7～8;若发现孵化池中已有少量鱼卵提前脱膜时,可适当关闭小进水阀门,并将高锰酸钾溶液泼入孵化池中,使池水浓度呈5～10微克/毫升,保持5～8分钟。过熟的鱼卵,以及营养不良的亲鱼产出的鱼卵,最易形成畸形胚胎。温度的变化,水温剧变均会导致畸形胚胎增加。不良的
Where hatching pool wall rough to be polished with a smooth wheel, when ovulation to master the appropriate density, the general release of eggs per cubic meter of water about 80 million; hatching water to clean and non-polluting, and a larger flow; in the reservoir Sprinkle lime slurry to adjust, so that the pH value of 7 to 8; if found in the hatchery in advance a small amount of fish eggs in advance, you can properly close the small inlet valve, and potassium permanganate solution into the incubator , So that the concentration of water was 5 to 10 micrograms / ml, maintaining 5 to 8 minutes. Overmature fish eggs, as well as malnutrition, broodstock produced eggs, the most likely to form deformed embryos. Temperature changes, water temperature changes will lead to abnormal embryos increased. undesirable