渔业现代化Issue(4)：1-5,5.
封闭循环水系统中养殖密度对大菱鲆生长和免疫的影响
Effect of stocking density on growth and immunity of Scophthalmus maximus reared in recirulating system
摘要
Abstract
Juvenile turbot (Scophthalmus maximus) were stocked and reared at four experiment densities for the study on the effect of stocking density on growth, feed coefficient and immunity. The initial densities were 0.66, 1.26, 2. 56 and 4.00 kg/m2, respectively. The experiment lasted for 75 days with final stocking densities reached 4.67, 7.25, 14. 16, 17.77 kg/m2 respectively. It was found that, under the same experiment conditions, higher stocking densities have a negative effect on fish growth. The SGR (special growth rate) for the four treatments were 2.67, 2. 33, 2.29 and 1.98, respectively. The uniformity of weight distributing within experiment groups decreased with increased density. However, the stocking density had positive effect on feed coefficient rate. Treatment 1 had the lowest feed coefficient rate of 0.70 and the highest coefficient was 0. 76, found in treatment 4, the treatment with the highest density. It was also found that the stocking density had insignificant impact on liver organ index. This experiment will provide reference for land-based recircula-tion systems for fish culture.关键词
大菱鲆/封闭循环水系统/养殖密度/生长/饵料系数/免疫Key words
turbot (Scophthalmus maximus)/ recirculation aquaculture system/ stocking density/ growth/ feed coefficient/ immunity分类
农业科技引用本文复制引用
朱建新,赵霞,曲克明,高淳仁,李贤,刘鹰..封闭循环水系统中养殖密度对大菱鲆生长和免疫的影响[J].渔业现代化,2011,(4):1-5,5.基金项目
国家科技支撑计划项目(2011BAD13B04)、(2011BAD13B07) （2011BAD13B04）
国家鲆鲽类产业技术体系(CARS-50) （CARS-50）
