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http://dx.doi.org/10.13000/JFMSE.2014.26.3.667

Comparison of Extruded and Moist Pellets for Growth Performance, Water Quality and Histology of Olive Flounder Paralichthys olivaceus in Jeju Fish Farm  

Kim, Sung-Sam (National Fisheries Research & Development Institute)
Kim, Kang-Woong (National Fisheries Research & Development Institute)
Kim, Kyoung-Duck (National Fisheries Research & Development Institute)
Lee, Bong-Joo (National Fisheries Research & Development Institute)
Lee, Jin-Hyeok (National Fisheries Research & Development Institute)
Han, Hyon-Sob (National Fisheries Research & Development Institute)
Kim, Jae-Won (Gangwon Provincial College)
Lee, Kyeong-Jun (Jeju National University)
Publication Information
Journal of Fisheries and Marine Sciences Education / v.26, no.3, 2014 , pp. 667-675 More about this Journal
Abstract
Two types of diets, extruded pellet (EP) and raw-fish-based moist pellet (MP) were fed to compare growth, water quality and histology of olive flounder, Paralichthys olivaceus in Jeju fish farm. Two groups of 7000 fish per each tank (initial mean weight 51 g) were fed one of two diets for 7 months. At the end of the feeding trial, significant differences were found in weight gain and feed utilization. Dissolved oxygen (DO) level of the MP tank was decreased from 7.98 to 6.89 after feeding. There were no significant differences in hematocrit, hemoglobin, alanine aminotransferase and aspartate aminotransferase of fish fed the two diets. Whole body protein content of fish fed the EP was significantly higher than that of fish fed the MP. While the feeding rate by month indicated numerically decreased, fish fed the MP had higher feed intake than that of fish fed the EP. Histological examination of hepatopancreas, kidney, and anterior intestine of fish fed the EP did not show any negative effects compared to those of fish fed the MP. This study revealed that EP could substitute for MP in terms of growth performance, blood parameters, water quality and histology of olive flounder.
Keywords
Olive flounder; Extruded pellet; Moist pellet; Dissolved oxygen; Histology;
Citations & Related Records
Times Cited By KSCI : 14  (Citation Analysis)
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