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于 1 995年 6月在中国科学院水生生物研究所关桥繁殖场采集异育银鲫自繁鱼种(体重为 1 .2 6± 0 .0 5g) ,采用生长实验的方法 ,在 30℃水温下 ,测定其从饥饿到饱食 6个摄食水平下的生长和能量收支。结果表明 ,随着摄食水平的增加 ,鱼体干物质和能量含量、表观消化率呈上升趋势 ;湿重特定生长率随摄食水平的增加呈线性上升 ,干重和能量特定生长率呈对数增加 ;饲料转化效率随摄食水平增加而增加 ,达到最大值后维持不变。排泄能和总代谢耗能占摄入食物能的比例不受摄食水平的影响。最大摄食水平下的能量收支式为 :1 0 0C =1 2 .32F + 3.2 1U + 63.74R + 2 0 .72G ,式中 ,C为食物能 ,F为粪便能 ,U为排泄能 ,R为代谢能 ,G为生长能。
In June 1995, the crucian carp (Carassius auratus gibelio) population was collected from Guanqiao Breeding Center, Institute of Hydrobiology, Chinese Academy of Sciences (body weight 1.226 ± 0.55g). The growth experiment was conducted at 30 ℃ , Their growth and energy budget were measured from starvation to full feeding at 6 feeding levels. The results showed that the dry matter and energy contents and apparent digestibility of fish showed an upward trend with the increase of food intake. The specific growth rate of wet weight increased linearly with the increase of food intake, and the specific growth rate of dry weight and energy showed a logarithm Increase; Feed conversion efficiency increased with the increase in food intake, after reaching the maximum value remained unchanged. Excretion energy and total metabolic energy consumption accounted for the proportion of food intake is not affected by the level of food intake. The energy expenditure under the maximum feeding level is: 1 0 0C = 1 2 .32F + 3.2 1U + 63.74R + 2 0 .72G, where C is food energy, F is fecal energy, U is excretion energy, R For metabolic energy, G is growth energy.