Publisher : The Korean Society of Fisheries and Aquatic Science
DOI : 10.5657/KFAS.2016.0330
Title & Authors
Fecal Solid Feed from the Recirculating Aquaculture System of the Renewable Sea Cucumber Apostichopus japonicus Jeong, U-Cheol; Jin, Feng; Choi, Jong-Kuk; Md, Anisuzzaman; Choi, Byeong-Dae; Kang, Seok-Joong;
Pollution caused by fecal solids released from recirculating aquaculture systems (RAS) is a growing global concern requiring immediate attention. Thus, this study investigated the physicochemical characteristics of fecal solid feed from RASs used for eel and rainbow trout farming. The concentrations of proteins, lipids, crude ash, and moisture in eel fecal solids were 10.9%, 1.2%, 85.8%, and 72.2%, respectively, while those in rainbow trout fecal solid feed were 20.5%, 3.2%, 70.9%, and 87.0%, respectively. The control group was fed a mixture of sea cucumber and dried sea mud. The protein digestibilities of eel and rainbow trout fecal solids were 25.43% and 23.96%, respectively, while the respective lipid digestibilities were 35.62% and 36.80%, respectively.
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