【作者】 白庆利； 于洪贤； 张玉勇； 贾志英； 尹家胜； 包玉龙； 李建兴；

【Author】 Bai Qing-li~(1,2) Yu Hong-xian~1 Zhang Yu-yong~2 Jia Zhi-ying~2 Yin Jia-sheng~2 Bao Yu-long~2 Li Jian-xing~2 (1 Northeast Forestry University College Of Wildlife Resources,Harbin 150020 2 Heilongjiang Fishery Research Institute,Chinese Academy of Fishery Science,Harbin 150070)

【机构】 东北林业大学野生动物资源学院； 中国水产科学研究院黑龙江水产研究所；

【摘要】 本文研究了养殖密度对饵料驯化期哲罗鱼稚鱼生长和存活的影响。试验分别设置了5个养殖密度(1000、2000、3000、4000、5000)尾/缸,经过70天的养殖试验发现,养殖密度对哲罗鱼稚鱼的存活率、肥满度(CF)、特定生长率(SGR)和变异系数(CV)的影响并不显著。各密度组的存活率分别为87.7%、94.25%、92.95%、91.45%和91.12%,肥满度为0.728～0.793,SGR平均值为3.11%,体重变异系数为0.49～18.73%。研究结果表明哲罗鱼稚鱼完全可以在较高的养殖密度下进行培育。更多还原

【Abstract】 In this paper the effects of stocking density on the growth and survival of juvenile Hucho taimen were studied.Experimental fishes were reared in five different stocking density (1000、2000、3000、4000、5000) ind/tank for 70 days.Result showed that the survival rate condition factor(CF),special growth rate(SGR) and coefficients of variation(CV) were found not to be significantly affected by stocking density.In this experiment,the survial rates were 87.7%,94.25%,92.95%,91.45%and 91.12%,respectively.CF ranged from 0.728 to 0.793,SGR average value was 3.11%,the body weight CV ranged from 0.49 to 18.73%,The results demonstrated that Hucho taimen juvenile can be reared in higher stocking density.更多还原