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KMID : 0903520070500040362
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
2007 Volume.50 No. 4 p.362 ~ p.366
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Effects of Supplemental Asterias amurensis Extract in the Experimental Diets on Growth, Blood Chemistry and Superoxide Production of Kidney Phagocytes of Sebastes schlegeli
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Park Hee-Yeon
Lim Chi-Won
Kim Yeon-Kye
Choi Tae-Jin
Yoon Ho-Dong
Lee Ka-Jung
Seo Yeon-Kyung
Kim Ji-Yeong
Park Ki-Eui
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Abstract
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This study was conducted to examine the effects of Asterias amurensis prethanol extract on growth performance, serum traits, and superoxide production of phagocytes in Sebastes schlegeli. The effects of Asterias amurensis extract on growth performance, specific growth rate (SGR), feed con- centration ratio (FCR), coefficient of fatness (CF), and survival rate (SR) of fish fed diets contain- ing various concentrations of Asterias amurensis extract were measured. There were no significant differences in SGR, FCR, CF, and SR among the experimental groups. This result was produced because experimental diets were coated to prevent repellent action of fish. To investigate the effects of Asterias amurensis extract on the metabolism, the contents of glucose, glutamic oxaloacetic tran- saminase (GOT), and total cholesterol in serum were measured. The contents of glucose and total cholesterol in serum increased dose-dependently and serum GOT content showed no significant dif- ference among the experimental groups, suggesting that Asterias amurensis extract was non-toxic material. To confirm the effects of Asterias amurensis extract on the immune system of fish, super- oxide production of phagocytes was measured. Asterias amurensis extract caused a dose-dependent increase of superoxide production of phagocytes. When considering these results, Asterias amurensis extract could be utilized as an additive to augment immune function in diets.
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KEYWORD
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Asterias amurensis, Sebastes schlegeli, superoxide production, growth
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