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经15个月室内连续观察测量和数理统计分析,发现黄鳝的生长属均匀性生长,可用 Von-Bertalanffy 生长方程描述其生长规律,体长生长为{L_t}_(mm)=768.143 0[1-exp(-0.6624A)],体重生长为{M_t}_g=1317.635 1[1-exp(0.662 4 A)]~3(上二式 A={t}a-0.5656)。体长与体重呈幂函数相关,其回归方程为:{M}_g=1.9110×10~6×{L}_(mm)~3.08.在适温范围内,黄鳝的生长与水温呈正相关,其停止摄食生长的下限温度为12.5℃。并据黄鳝阶段生长速度提出黄鳝饲养周期为2a 比较合理。
After 15 months of continuous observation and mathematical statistics analysis, it was found that the growth of the eel was a uniform growth, Von-Bertalanffy growth equation can be used to describe its growth, body length growth {L_t} _ (mm) = 768.143 0 [1- exp (-0.6624A)], and body weight growth was {M_t} _g = 1317.635 1 [1-exp (0.662 4 A)] ~ 3 (the upper two formulas A = {t} a-0.5656). The body length and body weight were power function, the regression equation was: {M} _g = 1.9110 × 10 ~ 6 × {L} _ (mm) ~ 3.08. In the suitable temperature range, the growth of the eel was positively correlated with the water temperature The minimum temperature for stopping feeding is 12.5 ° C. According to the eel stage growth rate of eel breeding cycle 2a is more reasonable.