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Evaluation of Extruded Pellets as a Growing Diet for Adult Flounder Paralichythys olivaceus  

Kim Kyoung-Duck (Aquafeed Research Center National Fisheries Research & Development Institute)
Kang Yong-Jin (Aquafeed Research Center National Fisheries Research & Development Institute)
Lee Hae-Young (Aquafeed Research Center National Fisheries Research & Development Institute)
Kim Kang-Woong (Aquafeed Research Center National Fisheries Research & Development Institute)
Kim Kyong-Min (Jeju Fisheries Research Institute, National Fisheries Research & Development Institute)
Lee Sang-Min (Faculty of Marine Bioscience and Technology, Kangnung National University)
Publication Information
Journal of Aquaculture / v.19, no.3, 2006 , pp. 173-177 More about this Journal
Abstract
This study was conducted to evaluate extruded pellets (EP) for growth of adult flounder by comparing with raw fish-based moist pellet (MP). Two replicate groups of 150 fish per each tank (initial mean weight 329 g) were fed one of seven EP (EP1, EP2, EP3, EP4, EP5, EP6 and EP7) and a MP for 8 months. Survival of fish fed the MP was not significantly different from that of fish fed the EP1, EP5 and EP7, but significantly higher than that of fish fed the EP2, EP3, EP4 and EP6 (P<0.05). Weight gain of fish fed the MP was significantly lower than that of fish fed the EPI (P<0.05), but not significantly different from that of fish fed EP2, EP3, EP4, EP5, EP6 and EP7. Feed efficiency of fish fed the MP was significantly lower than EP1, EP3, EP4, EP5 and EP6 (P<0.05), but not significantly different from that of fish fed EP2 and EP7 Feed supply (kg/tank) of fish fed the MP was significantly higher than that of fish fed all EP (P<0.05). Condition factor of fish fed the MP was not significantly different from that of fish fed all EP. The contents of moisture, crude protein and lipid in dorsal muscle and whole body was not significantly different among the groups. It is concluded that the dietary formulation used in the EP1, EP3, TP4, EP5 and EP6 can be applied in the practical extruded pellet feeds for adult flounder (329-680g).
Keywords
Extruded pellet; Raw fish-based pellet; Adult flounder; Growth;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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