渔业现代化2012，Vol.39Issue(4)：33-36,4.DOI:10.3969/j.issn.1007-9580.2012.04.007
养殖密度对网箱养殖匙吻鲟稚鱼生长的影响
Effects of stocking density on growth of juvenile Polyodon spathuln reared in net cage
摘要
Abstract
A study on the effect of stocking density on the growth of juvenile Polyodon spathuln reared in net cage was conducted. The initial stocking density was 30, 40, 50 and 60 individuals/m , respectively. A 16-day rearing experiment was conducted in this study. The results showed stocking density had some effects on the growth of juvenile P. spathuln. The survival rate was 85. 41% , 81. 66% , 76. 08% and 80. 27% , respectively. The final body weight, specific growth rate (SGR) , daily weight gain (DWG) and weight growth rate (WGR) decreased with the increasing of stocking density, while the net yield (NY) increased with the increasing of stocking density. The growth of juvenile P. spathuln at different stocking density was allometry (b <3). There were no significant difference between the final coefficient of size variation (SV) and initial SV at four stocking density. The growth efficiency of 30 individuals/m3 group was the largest, while the yield of 60 individuals/m was the highest.关键词
匙吻鲟/养殖密度/网箱/生长Key words
Polyodon spathuln/ stocking density/ net cage/ growth分类
农业科技引用本文复制引用
袁美云,邹作宇,刘双凤,李德鹏,王祖晨,吕延玲,董宏伟..养殖密度对网箱养殖匙吻鲟稚鱼生长的影响[J].渔业现代化,2012,39(4):33-36,4.基金项目
哈尔滨市优秀人才科技创新基金项目(2007RFJGN016) （2007RFJGN016）
