Survival and Growth Rates of Juvenile Grass Carp Ctenopharyngodon idella Overwintered in Ponds and Recirculating Aquaculture Systems Including a Comparison of Production Economics

被引:5
|
作者
Kristan, Jiri [1 ]
Blecha, Miroslav [1 ]
Policar, Tomas [1 ]
机构
[1] Univ South Bohemia Ceske Budejovice, Fac Fisheries & Protect Waters, South Bohemian Res Ctr Aquaculture & Biodivers Hy, Res Inst Fish Culture & Hydrobiol, Zatisi 728-2, Vodnany 38925, Czech Republic
关键词
RAS; Pond culture; Overwintering; Cyprinids; Fish production; SANDER-LUCIOPERCA L; LARGEMOUTH BASS; AQUATIC MACROPHYTES; BIOLOGICAL-CONTROL; CULTURE; CONSEQUENCES; RECRUITMENT; PERFORMANCE; EFFICIENCY; MORTALITY;
D O I
10.4194/1303-2712-v19_3_09
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
The survival of grass carp juveniles overwintered in ponds and RAS were compared in this study. The grass carp, W = 2.49 +/- 0.34g, were distributed among five 350 L tanks connected to a RAS and/or into three (1500 m(2)) ponds (P group). After 165 days, the survival rate was significantly higher in the RAS group, 97.8 +/- 0.5%, compared to 10.9 +/- 11.4% in P group. The grass carp in a RAS during the first winter significantly improved survival and good conditions of juvenile for subsequent ongrowing period. The RAS provided production profit compare to loss in P group.
引用
收藏
页码:261 / 266
页数:6
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