细鳞鱼生长与能量代谢的研究

THE STUDIES ON GROWTH AND ENERGY METABOLISM OF FINE SCALE FISH

本文报导了细鳟鱼(Braochymystax enok P.)体长与体重的关系、最大日摄入能与生长能的关系、生态生长效率等方面生长与能量代谢的研究结果。并确定养殖中最低投饵水平,对生产有一定的指导作用。

Fine scale fish is a kind of precious economic coldwater fish. In this report, we found the growth equation of this fish is: L_t=71.5 (1-e^((-0.1156)(t-0.0711)) and W_t=3235 (1-e~^((-0.1312)(t-0.0711))~3. The relationship between the length and weight of this fish is W=0.01776 L^(2·8369). The relationship between maximum day energy intake (DEImax) and weight is DEImax=0.024W^(1·2340) and the relationship between ecological growth efficiency () and weight is W=3.3114w^(-0.4278). The relationship between maintenance metabolism energy (MME) and weight is MME=0.03828w^(0.8443). The relationship between day energy growth (G) and day energy intake (DEI) can be described as G=a+bDEI.By analysing, we established the energy budget of fine Scale fish of 3 size groups in 7%, 5%, 2.5% and 1% feeding levels according to winberg formula C+G+ (F+U). The feeding level should not be lowwer than 5% in fish farming for fine scale fish.