Peranan Ekstrak Kelopak dan Buah Mangrove Sonneratia caseolaris (L) terhadap Infeksi Bakteri Vibrio harveyi (Johnson and Shunk) pada Udang Windu (Penaeus monodon Fab.)

Abstract

Bacteriological disease thai caused by bacteria V. Harveyi often lead to any damage in shrimp cultivation. The study of the role of calyx and fruit extract of mangrove S. Caseolaaaris (L) for preventation and healing on infection by bacteria V Harveyi to shrimp (P.monodon Fab) have conducted. Dosage level thai applied in this study, both prevenlation and healing is 100 ppm and 200 ppm, respectively, obtained in the result of the prevenlation and healing experiment. For hemoeyt, percent of granulosit increased and decrease fot percent of hialin, contrastly if compared with control. Application of mangrove extract can also increase the insistence of shrimp aftet infectedby bacteria V. harveyi and decreasing of bacteria level in the body of shrimp. By histological observation, appearing normality of digestion system with the rich of food in digestion tract after application of mangrove .S, caseolaris (I.) can applieated for preventation and healing to infection of bacteria V. harveyi to shrimp