Artificial substrates in zero‐water‐exchange culture system regulate the rearing performance of Pacific white shrimp Litopenaeus vannamei (Boone, 1931) under the winter indoor condition |
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| Authors: | Jiasong Zhang Liangliang Chen Hongbiao Dong Yafei Duan Zhuojia Li Guoliang Wen Jianguang Chen Zhenhua Feng WenJun Xu JianJun Xie |
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| Affiliation: | 1. Key Laboratory of Fishery Ecology and Environment, Guangdong Province, Key Laboratory of South China Sea Fishery Resources Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China;2. College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China;3. Marine Fishery Institute of Zhejiang Province, Zhoushan, China |
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| Abstract: | Effects of artificial substrates in zero‐water‐exchange culture system on the rearing performance of Litopenaeus vannamei under winter indoor condition were investigated in this study. Growth, survival, feed conversion rate (FCR), production rate of L. vannamei and water quality were compared between artificial substrate‐treated group (AST) and control group (without artificial substrates presented in the rearing environment). Artificial substrates can significantly improve the water quality, the ammonia and nitrite‐N concentrations in the AST group were significantly lower than in the control group (P < 0.05), and the total heterotrophic bacteria and Vibrio spp. were also significantly lower in the AST group (P < 0.05). The survival, growth and production rate of L. vannamei in the AST group were significantly higher than in the control group (P < 0.05). Significantly lower FCR was observed in the AST group (P < 0.05). Results from this study indicate that the utilization of artificial substrates in the indoor shrimp culture system could effectively control the water quality, improve the survival and growth of shrimp and significantly reduce the FCR. This study provides a guideline for employing artificial substrates in rearing of shrimp in the zero‐water‐exchange culture system under lower temperature, which could be applicable to other similar species. |
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| Keywords: |
Litopenaeus vannamei
artificial substrates growth water quality |
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