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

作者:Zhang, Jiasong*; Chen, Liangliang; Dong, Hongbiao; Duan, Yafei; Li, Zhuojia; Wen, Guoliang; Chen, Jianguang; Feng, Zhenhua; Xu, WenJun; Xie, JianJun
来源:Aquaculture Research, 2016, 47(1): 91-100.
DOI:10.1111/are.12473

摘要

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.