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http://dx.doi.org/10.5657/KFAS.2013.0310

Influence of Dietary Beef Tallow and Dextrin on the Growth and Body Composition of Juvenile Far Eastern Catfish Silurus asotus  

Kim, Kyoung-Duck (Aquafeed Research Center, National Fisheries Research & Development Institute)
Kim, Jin Do (Inland Aquaculture Research Center, National Fisheries Research & Development Institute)
Kim, Kang-Woong (Aquafeed Research Center, National Fisheries Research & Development Institute)
Son, Maeng Hyun (Aquafeed Research Center, National Fisheries Research & Development Institute)
Han, Hyon Sob (Aquafeed Research Center, National Fisheries Research & Development Institute)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.46, no.3, 2013 , pp. 310-314 More about this Journal
Abstract
This study investigated the utilization of beef tallow and dextrin as non-protein energy sources in the diet of juvenile far eastern catfish Silurus asotus. Three replicated groups of juveniles (initial mean weight of 3.6 g) were fed diets containing high levels of beef tallow or dextrin for six weeks. The final mean weight of fish fed on a 17% lipid diet with a high level of beef tallow was significantly higher than that of fish fed on a 9% lipid diet with a high level of dextrin (P=0.04). No significant differences were observed in the feed efficiency and protein efficiency ratio of fish fed on the experimental diets. Crude lipid content and the C18:0, C18:1n-9 and C18:2n-6 contents of whole-body fish were significantly affected by diet (P<0.05). The results of this study suggest that beef tallow is better than dextrin as a non-protein energy source for improving the growth of juvenile far eastern catfish, and that beef tallow could be economically used as an ingredient in practical feed.
Keywords
Far eastern catfish; Silurus asotus; Non-protein energy; Beef tallow; Dextrin;
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Times Cited By KSCI : 3  (Citation Analysis)
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