The effect of water level in vertical aquaculture systems on production performance, biochemistry, hematology, and histology of Anguilla bicolor bicolor

Harianto E., Supriyono E., Budiardi T., Affandi R., Hadiroseyani Y.

Doctoral Program Student, Graduate School, Department of Aquaculture, Faculty of Fisheries and Marine Sciences, IPB University, Jalan Agatis, IPB Dramaga, Bogor, 16680, Indonesia; Aquaculture Study Program, Faculty of Agriculture, Jambi Batanghari University, Jl. Slamet Ryadi, Broni Jambi, 36122, Indonesia; Department of Aquaculture, Faculty of Fisheries and Marine Sciences, IPB University, Jalan Agatis, IPB Dramaga, Bogor, 16680, Indonesia; Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University, Jalan Agatis, IPB Dramaga, Bogor, 16680, Indonesia


Abstract

The water level in the cultivation of eel (Anguilla bicolor bicolor) is an important study in order to provide the optimal water level for cultivation. Optimizing the water level will affect the substitution of respiration energy with energy to grow. In addition, the water level information is related to the efficiency of water use for eel production in the future. Information on water level for eel production is still very limited, so this research is necessary to do. A total of 120 eel elver (initial weight 13.66 ± 0.09 g) were collected from eel companies in Bogor City, Indonesia. Fish were reared in vertical aquaculture systems with a stocking density of 10 fish per container for 60 days. The artificial feed containing 55% protein given as much as 3–5% of the biomass. Absorption and water replacement were done 20% per day. The result of this research showed that fish weight increased with an average of 33.45 ± 0.33 g. Different water levels had an impact to KKb, SGOT, ALP, and He. There was erosion of the skin epidermis and necrosis of the gill filaments due to the adaptation process. Water quality was within the optimum range for all treatments and 1.5 cm water level is recommended for maintenance (SGOT, ALP and He values were closest to normal values). © 2021, The Author(s).


Journal

Scientific Reports

Publisher: Nature Research

Volume 11, Issue 1, Art No 11318, Page – , Page Count


Journal Link: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107352383&doi=10.1038%2fs41598-021-90912-1&partnerID=40&md5=ce71d1eb626fd8bc47bfce7a4eb88722

doi: 10.1038/s41598-021-90912-1

Issn: 20452322

Type: All Open Access, Gold, Green


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