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施氏鲟的成熟卵为典型的多黄卵,受精后胚盘隆起不明显,卵裂为特殊的辐射裂,与多数硬骨鱼类有明显差别,与两栖类卵裂相似,且卵裂方式有明显的硬骨鱼类盘状卵裂的痕迹。施氏鲟的胚胎发育可分为受精卵、卵果期、囊胚期、原肠期、卵黄栓期、神经胚期、视泡形成期、心脏形成博动期和孵出期;胚后发育则分为卵黄囊期仔鱼、晚期仔鱼和稚鱼期。水温17~19℃时,施氏鲟胚胎发育历时95~104 h,总积温需用 1710~1872℃·h。胚后发育水温为20~23℃,刚孵出的仔鱼全长9.42~11.0 mm,体重29~39 mg;出膜后第 30天的平均全长42.8 mm,平均体重3.2 g,其外部形态与成鱼基本一致。
The mature eggs of Acipenser schrenckii are typical polyhedrosis eggs. After fertilization, the uplift of blastoderm is not obvious, and the cleavage is a special radiation split, which is obviously different from most bony fish, similar to that of amphibian cleavage Obvious discoloration of bony fish marks. The sturgeon of Amur sturgeon can be divided into fertilized eggs, egg stage, blastula stage, gastrula stage, yolk suppository stage, neuroblastoma stage, optic vesicle formation stage, cardiogenesis period and hatch stage; Is divided into yolk sac larvae, late larvae and juvenile period. The water temperature of 17 ~ 19 ℃, the development of Sturgeon embryos lasted 95 ~ 104 h, the total accumulated temperature need 1710 ~ 1872 ℃ · h. After embryo development, the water temperature was 20 ~ 23 ℃. The newly hatched larvae were 9.42 ~ 11.0 mm in length and 29-39 mg in weight. The average length of the larvae after the first 30 days was 42.8 mm and the mean body weight was 3 .2 g, its external shape and adult fish basically the same.