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KMID : 0613820070170101434
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Journal of Life Science
2007 Volume.17 No. 10 p.1434 ~ p.1440
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Effect of Culture Broth from Mushroom Mycelium on Growth and Non-specific Immune Parameters in Flounder (Paralichthys olivaceus) by Oral Administration
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Kim Man-Chul
Kim Min-Joo
Kim Ju-Sang
Heo Moon-Soo
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Abstract
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We have investigated the effects of mushroom mycelium (Phellinus linteus, Coriolus versicolor) mixed cultural extract on the immune responses of olive flounder, Paralichthys olivaceus. The mixed culture extracts were evaluated for the growth, hematology, lysozyme activity, leukocyte phagocytic activity, and disease resistance against Vibrio anguillarum. In the effect of the growth, the body weight and length gain in the group, which fed with mushroom mycelium mixed cultural extract, were 52 g and 3.4 cm higher than that in the control, respectively. For the hematology, the administration of mushroom mycelium mixed cultural extract resulted in increase of glucose. However, there was no distinct differences in GOT (glutamic oxaloacetic transaminase), GPT (glutamlc pyruvic transamlnase), TG, TP, and LDH (lactate dehydronase) among each group. The activities of lysozyme were 80% higher in the experimental groups than in the control. The activities of leucocyte were 66% higher in the experimental groups than in the control. Although lysozyme activity and leucocyte activity showed somewhat decrease after 12 weeks, these activities were still higher than in the control. The cumulative mortality (%) after an artificial challenge with 7×108 CFU of Vibrio anguillarum per fish was 25% higher in the experimental groups than the control.
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KEYWORD
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Mushroom mycelium, immune responses, Paralichthys olivaceus, administration cumulative mortality
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