THE USE OF MANGROVE (Avicennia sp.) FRUIT EXTRACT AS A NATURAL ANTIBACTERIAL MATERIAL FOR THE TREATMENT OF DISEASES CAUSED BY Vibrio parahaemolyticus IN VANAME SHRIMP (Litopenaeus vannamei)

Abstract

Vaname shrimp (Litopenaeus vannamei) has high economical value as an export commodity However, there are obstacles that cause a decline in the level of shrimp exports in the world. One of the obstacle is shrimp disease which is treated using antibiotics. This method might ca-used pathogenic resistance and become a residue when consumed by humans. Avi-cennia sp. fruit extracthas benefits as natu-ral antibacterial ingredient that are safe to treat the shrimp which is infected by the Vibrio parahaemolyticus. In this study, shrimp is infected with Vibrio parahaemo-lyticus immersed using Avicennia sp. with a concentration of 300 mg L^-1, 350 mg L^-1, and 400 mg L^-1 for 21 days plus the control treatment. The concentration of 400 mg L^-1 showed better results compare to other con-centration on all observed parameters; fas-ter recovery time, higher survival rate and relative percent survival (RPS), also mild damage on hepatopancreas test.

Keywords: Litopenaeus vannamei, antibiotics, Avicennia sp., fruit extract Vibrio parahaemolyticus