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线纹尖塘鳢的胚后发育大致分为仔鱼、稚鱼、幼鱼和成鱼期。初孵仔鱼仅2.875mm。前期仔鱼混合营养期短,仅2~3d。后期仔鱼为器官发育、奇鳍条基本形成期,历时10d,平均全长从4.31mm增至8.97mm。稚鱼为器官分化完毕,奇偶鳍条分节、鳞被形成期,历时27~29d,长至平均全长27.79mm。早期幼鱼鳞被等发育完善,进入生长时期。仔鱼开口饵料为150~200μm轮虫,其摄饵大小与口宽呈正相关。15mm后稚鱼可驯饵摄食人工混合料。对仔、稚、幼鱼的生长测定结果显示,全长与日龄呈线性关系L=0.5289t-0.7354(r2=0.9720),体重与日龄呈指数函数关系,W=0.8236e0.1267t(r2=0.9611),全长与体重呈幂函数关系,曲线回归方程W=0.0045L3.2527,b=3.2527,属匀速生长型。采用池塘培水,添加外源饵料生物系列,稚鱼全长15mm时开始驯饵。2002-2005年共培育全长2.2~3.4cm早期幼鱼523.7万尾,仔鱼培育成15mm稚鱼的成活率为26.8%,培育成早期幼鱼的成活率为75.7%。
After the embryo line Wen Jian Tsai embryonic development can be divided into larvae, juveniles, juveniles and adult fish. The newly hatched larvae are only 2.875mm. Premature larvae mixed nutrition period is short, only 2 ~ 3d. Late larvae organ development, the basic formation period of odd fin, which lasted 10d, the average length increased from 4.31mm to 8.97mm. The juvenile is divided into organs, the odd and even fin sections, scales are formed, lasted 27 ~ 29d, grow to an average length of 27.79mm. Early juvenile scales are well developed, into the growth period. Larval larvae feed rotifer 150 ~ 200μm, its bait size and mouth width was positively correlated. After 15mm can be fed bait feeding juvenile mixed material. The results of growth assay of juvenile, juvenile and juvenile showed that there was a linear relationship between total length and age (L = 0.5289t-0.7354 (r2 = 0.9720), exponential function between body weight and age, W = 0.8236e0.1267t = 0.9611). The total length and body weight showed a power function relationship. The regression equation of the curve W = 0.0045L3.2527, b = 3.2527, belonging to the uniform growth type. Using pond water, adding exogenous bait biological series, when juveniles full length 15mm began to tame bait. From 2002 to 2005, a total of 5,237,000 young larvae of 2.2-3.4cm in length were cultivated. The survival rate of larvae cultured to 15mm larvae was 26.8%, and the survival rate of juvenile larvae cultivated into early stages was 75.7%.