Effects of tank diameter and water depth on growth performance, antioxidant capacity and immune response of Chinese sturgeon Acipenser sinensis in recirculating aquaculture system
文献类型： 外文期刊
作者： Zhang, Haigeng 1 ; Jiang, Nan 3 ; Zhang, Yulei 1 ; Zhang, Yalei 2 ; Ni, Qi 1 ; Fan, Yuding 3 ;
作者机构： 1.Chinese Acad Fishery Sci, Fishery Machinery & Instrument Res Inst, Shanghai, Peoples R China
2.Tongji Univ, Coll Environm Sci & Engn, Shanghai, Peoples R China
3.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan, Peoples R China
关键词： aquaculture habitat conditions; Chinese sturgeon; growth; recirculating aquaculture system; stress
期刊名称：JOURNAL OF APPLIED ICHTHYOLOGY （ 影响因子：0.892； 五年影响因子：0.956 ）
ISSN： 0175-8659
年卷期：
页码：
收录情况： SCI
摘要： Chinese sturgeon, Acipenser sinensis, is one of the endangered aquatic species and have been successfully bred and artificially produced in China. To analyze the role of aquaculture habitat conditions in growth of Chinese sturgeon, the growth performance, antioxidant capacity and immune responses of Chinese sturgeons under different tanks in the recirculating aquaculture system (RAS) were investigated. The fish (avg.wt. 2.83 +/- 0.24 kg [SD]) were divided into two groups, one group were reared under three different water depths of tank (0.6, 1, 1.4 m) and the other group were under three different diameters of tank (2.5, 3.8, 7.5 m), which were named low-depth (LD), medium-depth (MD), high-depth (HD), small-diameter (SS), medium-diameter (MS) and large-diameter (LS), respectively. The results showed that at a depth of 0.6 m, the specific growth rate (SGR), weight gain rate (WG), serum glutathione peroxidase (GPX), alkaline phosphatase (AKP) and lysozyme (LZM) activities of Chinese sturgeons were significantly lower than those of other treatments (p < .05), while the food conversion ratio and malondialdehyde (MDA) showed a significant increased in this treatment (p < .05). In additional, when the fish in 2.5 m diameter tank treatment, the SGR, WG and the serum GPX, AKP, LZM indicator were significantly lower than the rest of the treatment (p < .05), while the serum MDA were significantly higher than the other treatment (p < .05). These results suggested that tank diameter and water depth had an influence on growth and therefore should be considered in RAS systems for Chinese sturgeon.
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