Applications of Microalgal for Bacterial Disease on Tiger Shrimp (Penaeus Monodon) In Hatchery Nurbaya1, Ince Ayu K Kadriah1, Nurhidayah1, Endang Susianingsih1, and Bunga Rante Tampangallo1 Please Just Try to Submit This Sample Abstract
National Research and Innovation Agency of Republik Indonesia
Abstract
Abstract: Disease attacks on shrimp cause up to 100%death generally caused by Vibrio Harvey bacteria, Monodon Baculo Virus (MBV) and White Spot Syndrome Virus (WSSV). The study was conducted using whole cell and Phaedactylumspmicroalgae extract with three treatments and three replications. Treatment A was control without the application of microalgae, treatment B application whole cellPhaeodactylumspand treatment C application of Phaedactylumsp extract. Larval rearing was carried out for 19 days until post larva 12. The application of microalgae was carried out in the phases of zoea 2, zoea 3, mysis 2 to PL 10 with the density of wholecell microalgae and extracts at the time of stocking was 104-106 cells/mL.Parameters observed were the density of microalgae and Vibrio bacteria in the rearing tanks. Sampling for bacterial density was carried out at each phase change together with water quality parameters. The results showed that the administration of Phaeodactylumsp both whole cell and extract can suppress the Vibrio population and TBV/TPC ratio. Bacteria in tiger shrimp larvae rearing water were lower than control and tiger shrimp survival was found to be higher with the application of Phaeodactylumsp (extract and whole cell).
