机构地区:[1]Engineering Research Center of Shellfish Culture and Breeding in Liaoning Province,School of Fisheries and Life Science,Dalian Ocean University,Dalian 116023,P.R.China [2]National Marine Environmental Monitoring Center,Dalian 116023,P.R.China [3]School of Marine Science and Environment Technology,Dalian Ocean University,Dalian 116023,P.R.China [4]Dalian Tianzheng Industrial Corporation Limited,Dalian 116011,P.R.China
出 处:《Journal of Ocean University of China》2017年第1期107-113,共7页中国海洋大学学报(英文版)
基 金:the support of the Major Subject of the Committee of Science and Technology of Liaoning Province of China(2011203005);the Public Science and Technology Research Funds Projects of Ocean(2012418025);the Public Subject of the Committee of Science and Technology of Liaoning Province of China(2012005001);the Science and Technology Foundation of Education Department of Liaoning Province of China(L2011117);the Scientific Research Project of Liaoning Provincial Department of Education(L201603);the Open Foundation of Fujian Provincial Key Laboratory of Ecology-Toxicological Effects&Control for Emerging Contaminants(PY16005);the Natural Science Foundation of Liaoning Province of China(2014020149)
摘 要:Tiger puffer(Takifugu rubripes) is a promising species for aquaculture production because of its high value and limited supply. However, in the north of China, using sea cages to culture this species in winter is hampered by the fact that the seawater temperature is extremely low. Here, a large scale commercial production of tiger puffer has been successfully realized using a recirculating aquaculture system(RAS) from 3 October 2012 to 31 May 2013. The RAS was comprised of nine culture tanks(total water volume 200 m3) and stocked with approximately a total of 14400 fish(initial mean weight 160 g). The tiger puffer was hand-fed at a rate of 0.7% of total body weight per day, and the feed conversion rate was(1.21 ± 0.3) kg kg-1. The recycle water in RAS was treated by a sieve bend screen, a foam fractionator, a submerged biofilter, an UV sterilizer and a submersible aerator. During the whole culture period, an excellent water quality control was achieved in RAS. At the end of this experiment, the survival rate of tiger puffer was more than 98%. The final tank densities averaged 31.2 kg m-3, and the final individual mean weight was 440 g.Tiger puffer (Takifugu rubripes) is a promising species for aquaculture production because of its high value and limited supply. However, in the north of China, using sea cages to culture this species in winter is hampered by the fact that the seawater temperature is extremely low. Here, a large scale commercial production of tiger puffer has been successfully realized using a recirculating aquaculture system (RAS) from 3 October 2012 to 31 May 2013. The RAS was comprised of nine culture tanks (total water volume 200 m<sup>3</sup>) and stocked with approximately a total of 14400 fish (initial mean weight 160 g). The tiger puffer was hand-fed at a rate of 0.7% of total body weight per day, and the feed conversion rate was (1.21 ± 0.3) kg kg<sup>−1</sup>. The recycle water in RAS was treated by a sieve bend screen, a foam fractionator, a submerged biofilter, an UV sterilizer and a submersible aerator. During the whole culture period, an excellent water quality control was achieved in RAS. At the end of this experiment, the survival rate of tiger puffer was more than 98%. The final tank densities averaged 31.2 kg m<sup>−3</sup>, and the final individual mean weight was 440 g.
关 键 词:TAKIFUGU rubripes recirculating AQUACULTURE system production water QUALITY
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