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KMID : 0613820150250050548
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Journal of Life Science
2015 Volume.25 No. 5 p.548 ~ p.556
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Influence of Dietary Conjugated Linoleic Acid (CLA) and Carotenoids on Growth, Fatty Acid Composition, and 3T3-L1 Cells in Black Seabream (Acanthopagrus schlegeli)
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Guo Rui
Zuliyati Rohmah
Choi Kwang-Soo
Park Si-Hyang
Ha Yeong-Lae
Kang Seok-Joong
Choi Byeong-Dae
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Abstract
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Three groups of black seabream (Acanthopagrus schlegeli) were fed with treatment diets containing certain concentrations of conjugated linoleic acid (CLA) and carotenoids. The control group feed contained 0% CLA and 0% carotenoids, the CP10 group feed contained 1% CLA and 0.1% carotenoids, and the CP25 group feed contained 2.5% CLA and 0.1% carotenoids. The CP10 and CP25 groups demonstrated the enhanced growth and increased feed conversion efficiency of black seabream. The specific growth rates (SGRs) were 0.74, 0.81, and 0.97, while the feed conversion ratios (FCRs) were 2.65, 2.46, and 2.04 for the control, CP10, and CP25 groups, respectively. The total contents of high unsaturated fatty acid (HUFA) for the control, CP10, and CP25 groups were 41.0%, 41.7%, and 43.5%, respectively. CLA was deposited to the extent of 2.8% and 5.6% in the muscle, and 4.0% and 8.3% in the viscera of the CP10 and CP25 groups, respectively. Meanwhile, treatment with the viscera lipid extract (VLE) from CP25 fish evidently lowered 3T3-L1 adipocytes viability. The lipid extract from the muscle and viscera of black seabream contained ample amounts of beneficial substances, such as CLA, carotenoids, EPA, and DHA. CLA, which enriched black seabream muscle, could be categorized as a functional food and serve as a well-being food. Meanwhile, the fish oil from its viscera could serve as a high function supplement.
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KEYWORD
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Black seabream, carotenoids, conjugated linoleic acid (CLA), growth performance, 3T3-L1
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