【作者】 王金燕； 张颖； 尹家胜；

【Author】 Jinyan WANG~(1,2),Ying ZHANG~1,Jiasheng YIN~1 (1.Haerbin 150070,Heilongjiang Fishery Research Institute of Chinese Academy of Fishery Science;2. Shanghai 201306,Shanghai Ocean University)

【机构】 中国水产科学研究院黑龙江水产研究所； 上海海洋大学；

【摘要】 通过循环控温水族箱实验,研究了哲罗鲑幼鱼在不同温度下的生长特性及规律。实验结果表明,温度对哲罗鲑幼鱼体长生长率、体重增长率和存活率存在显著差异。哲罗鲑幼鱼生长的最适温度范围为15～18℃,上限温度为24℃.Quadratic和Boltzmann模型能很好估计不同温度下的哲罗鲑幼鱼的体长和体重生长过程,可以用来估计哲罗鲑的养殖产量。不同温度养殖条件下,投喂人工饲料的哲罗鱼幼鱼的肥满度,接近于以无脊椎动物为主要食物的肥满度,说明用于本实验的人工饲料的营养配比基本满足幼鱼的营养需求。更多还原

【Abstract】 The growth characteristics of Hucho taimen juveniles were studied at different temperatures by aquarium.The results show that the instantaneous growth rate is significantly affected by the different water temperatures.The most suitable tempearture range is 15～18℃,and upper temperatures is 24℃.As the results also express as curve regression,the optimum model of body length growth is Quadratic(R~2>.978),and that of the body weight growth is Cubic(R~2>0.981).The growth model is competent to estimate the culture production.The artificial feed can be used to rear the fish as the main food,and the condition factor of fish fed on formulated feed is close to that of fish fed on Limnodrilus and Copepoda.更多还原