The identification of vibrio spp. Bacteria from litopenaeus vannamei infected by white feces syndrome

The vannamei shrimp ponds in Indonesia have infected by White Feces Syndrome (WFS) intensively in Sumatra, Java, Sulawesi, Bali, Lombok and Sumbawa. This research is aimed to know the density and type of Vibrio spp. from hemolymph, hepatopancreas and intestines of vannamei shrimp which is infected by WFS. The bacteria identification test was performed in the Microbiology Laboratory of Balai Besar Perikanan Budidaya Air Payau Jepara (a brackish water aquaculture office in Jepara, Central Java). The research method in this study is an explorative descriptive research by using a simple random sampling. Conventional method is used for the identification of the bacteria. The indication of the shrimp which is infected by WFS is already exposed to the Vibrio spp. genus bacteria, it consists of V. Parahaemolyticus; V. Vulnificus; V. chollera and V. anguillarum. The total average of Vibrio spp. in hemolymph is 2,9 x 10⁴ CFU/ml, while in hepatopancreas is 4,4x10⁷ CFU/g and in intestines 3,9x107 CFU/g.