| abstract |
The present invention relates to an animal feed additive having an immune enhancing effect on shrimp infected with White Spot Syndrome Virus (WSSV), and specifically, the licorice, cheongung, peanut, buckwheat, hearing and laver of the present invention. Animal feed additives containing natural substances, such as extracts, increase resistance to white spot syndrome virus against shrimp, thereby reducing the occurrence of White Spot Syndrome Disease (WSSD) disease and increasing immunity. Since it has the effect of improving the survival rate and increasing the feeding rate to promote growth, it is possible to prevent disease of individuals and infection of bacteria and viruses in the breeding and farming of shellfish.n n n n White Spot Syndrome Virus, Immune Enhancement, Feed Additive |