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在实验室内, 22. 5±0. 5℃条件下以去头去骨去鳞片去皮的金色小沙丁鱼的纯肉糜为饵料饲养斜带髭鲷幼鱼,测定体重范围在 4. 6~6. 5g的斜带髭鲷的体重、体长的生长曲线及其生态转换效率和特定生长率.实验结果表明,斜带髭鲷的体重、体长在实验期间直线增长,体重、体长的生长曲线分别为Wt(w.w.湿重,下同 ) =0. 391 7t+5. 766 2(R=0. 999 6)和Lt=0. 105t+6. 265(R=0. 989 9).用胃含物法测定斜带髭鲷的胃排空率、日摄食量、日生长量、生态转换效率和特定生长率.实验得到斜带髭鲷消化道的瞬时排空率Rt= 1. 23 4×10-3 (m/m) /h,日摄食量Cd= 1. 342 9g(w.w. ),生态转换效率Eg=29. 50% ±2. 77% [m/m(w.w. ) ],特定生长率SGR=4. 71%±0. 69% [m/m(w.w. ) ].
In the laboratory, under the conditions of 22. 5 ± 0. 5 ℃ to the head deboning to scallop peeled gold small sardines pure meat for bait feeding razor snakehead seabream juvenile measured body weight range 4.6 ~ 6 The body weight, body length growth curve and its ecological conversion efficiency and specific growth rate of 5g diabete snakehead snapper were studied.The results showed that the weight, The curves are respectively Wt (ww wet weight, the same below) = 0. 391 7t + 5. 766 2 (R = 0.999 6) and Lt = 0. 105t +6.265 (R = 0.989 9) The gastric emptying rate, daily food intake, daily growth, ecological conversion efficiency and specific growth rate of the wild snakehead bearded sea buckthorn were determined by the stomach content method.The instantaneous emptying rate of the digestive tract of the wild snakehead snakehead beaked Rt was 1. 23 4 The ecological conversion efficiency Eg = 29. 50% ± 2. 77% [m / m (ww)], the specific growth Rate SGR = 4.71% ± 0.69% [m / m (ww)].