| abstract |
The present invention relates to: a pharmaceutical composition for preventing or treating VHS comprising an Ecklonia cava extract, a fraction thereof, a phlorotannic compound derived therefrom or a pharmaceutically acceptable salt thereof; a method for preventing or treating VHS using the pharmaceutical composition; a quasi-drug composition for preventing or treating VHS, a feed or a feed additive for preventing or ameliorating VHS comprising an Ecklonia cava extract, a fraction thereof, a phlorotannic compound derived therefrom or a pharmaceutically acceptable salt thereof; and a method of farming fish comprising a step of feeding the feed to fish. The Ecklonia cava extract, the fraction thereof or the phlorotannic compound derived therefrom of the present invention exhibits an effect of suppressing the activity of VHSV, and exhibits an effect of enhancing the prevention or treatment of fish VHS, with high safety using the same, and thus may be widely utilized in improving the survival rate of flatfish against infection of VHSV and in increasing the stability of the fishery industry due to an improvement of fishing productivity. |