【作者】 贾睿； 刘宝良； 韩岑； 黄滨； 雷霁霖；

【Author】 Rui Jia;Bao-Liang Liu;Cen Han;Bin Huang;Ji-Lin Lei;Wuxi Fisheries College, Nanjing Agricultural University;Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences;College of Fisheries and Life Science, Dalian Ocean University;

【机构】 南京农业大学无锡渔业学院； 农业部海洋渔业资源可持续利用重点开放实验室中国水产科学研究院黄海水产研究所；

【摘要】 为了评估工厂化循环水养殖中密度对大菱鲆生长的影响,本实验将大菱鲆(初重:70.0±5 g)分3个密度养殖80天。低密度(5.13±0.03 kg/m2):2200尾/池;中密度(7.71±0.11 kg/m2):3300尾/池;高密度(10.8±0.12 kg/m2):4,600尾/池。养殖80天后,3个密度分别为:13.2±0.10、19.9±0.15和25.7±0.12 kg/m2。同时大菱鲆体质量、体长、特定生长率、绝对生长率、饵料系数以及个体差异系数在不同密度中出现显著变化。该研究表明在循环水系统中,大菱鲆适合高密度养殖,然而过高的密度会抑制其生长更多还原

【Abstract】 This study aimed to assess the effects of stocking density on growth as well as antioxidant status and physiological response of juvenile turbot reared in a land-based recirculating aquaculture system(RAS). Turbot(average initial weight 70.0 ± 5 g) were reared at three different initial densities(LD, 5.13± 0.03; MD, 7.71± 0.11 and HD, 10.8± 0.12 kg/m2) for 80 days. At the end of this trial, the final densities were 13.2 ± 0.10, 19.9 ± 0.15 and 25.7 ± 0.12 kg/m2 in LD, MD and HD groups, respectively. The growth performance including body weight(BW), standard length(SL), absolute growth rate(AGR), specific growth rate(SGR), feed conversion ratio(FCR) and coefficient of variation for weight(CVw) were adversely influenced by high stocking density(P < 0.05). In conclusion, the present study presented the possibility for turbot(80-180g) on-growing at high stocking density in commercial recirculation aquaculture system. However, excessive stocking density reduced growth performance.更多还原