渔业现代化Issue(6)：8-13,6.DOI:10.3969/j.issn.1007-9580.2014.06.002
圆斑星鲽网箱养殖研究
The study on spotted halibut (Verasper variegatus) reared in cages
摘要
Abstract
In order to evaluate the growth performance, food conversion ratio and the changes in body color, spotted halibut (Verasper Variegatus) with body weight of 792.27±48.89 (large size), 513.49±39.19 (mid⁃size) and 185.59±25.51 g (small size) and stocking densities of 5.5 kg/m2 and 7.5 kg/m2 were respectively reared into 18 net cages at water temperature from 15 ℃ to 25 ℃for 60 days. The cage size was uniformly 5 m×5 m×3 m, and the fish were fed with frozen trash fish. The results showed that the daily body weight gain ranged from 1.77 g/d to 4.24 g/d during the rearing period, in which the maximum was that of the large size group (3.49 g/d) and it reached to 4.24 g/d at temperature of 15⁃20 ℃. The average food conversion ratio was 4.87, in which the minimum was that of large size group (4.16), and at water temperature of 15⁃20℃, it was 3.55. There was no significant effect of the stocking density on the growth and food conversion ratio for the spotted halibut reared in cages.There were better growth performance and lower food conversion ratio at water temperature of 15⁃20 ℃ compared with that at water temperature of 20⁃25 ℃. The body color of the spotted halibut reared in the cages was gradually turned to that of wild spotted halibut, and the color of blind side faded from black to white gradually. It considered that Verasper variegatus is a potential and suitable species for the cage aquaculture.关键词
圆斑星鲽/网箱养殖/规格/密度/生长/体色Key words
Verasper variegatus/size/density/cage aquaculture/growth/body color分类
农业科技引用本文复制引用
秦搏,陈四清,曹栋正,刘长琳,燕敬平,胡建成,王志军..圆斑星鲽网箱养殖研究[J].渔业现代化,2014,(6):8-13,6.基金项目
国家级星火计划“圆斑星鲽良种产业化繁育与增养殖技术推广（2013GA740024）” （）
