Abstract
Freshwater prawn (Macrobrachium rosenbergii (de Man)) farming in Bali needs to be supported by the provisionof healthy prawn larvae. Vibriosis infection can be a limiting factor on larval production system which cause highmass mortality in larvae. Therefore a bacteriological study is very important to identify of Vibrio species whichcan cause vibriosis in freshwater prawn larvae. Screening of Vibrio bacteria carried on larval rearing water atUPT Pembenihan Dinas Kelautan dan Perikanan Provinsi Bali which located in Pesinggahan Village, Klungkung.During study, 5 Vibrio isolates can be characterized (VSP01, VSP02, VSP04, VSP05 and VSP06) which wereisolated as dominant Vibrio bacteria in larval rearing water. Koch postulate test results showed that VSP06 cancause vibriosis in freshwater prawn larvae. The result of identification by BBL Cystal™ Identification Systems andidentification book Bergeys’s Manual of Determinative Bacteriology Ninth Edition (Holt et al., 1994), BL6 wasidentified as Vibrio anguillarum.
Highlights
in Bali needs to be supported by the provision of healthy prawn larvae
important to identify of Vibrio species
of Vibrio bacteria carried on larval rearing water at UPT Pembenihan Dinas Kelautan dan Perikanan Provinsi Bali
Summary
Freshwater prawn (Macrobrachium rosenbergii (de Man)) farming in Bali needs to be supported by the provision of healthy prawn larvae. Beberapa spesies Vibrio patogen telah banyak dilaporkan menyebabkan tingkat kematian benih yang sangat tinggi pada panti pembenihan di wilayah Asia Tenggara dan Selatan (Otta et al, 2001). B. Perlakuan uji postulat Koch Uji menggunakan isolat Vibrio yang paling dominan diisolasi dari air kolam pembenihan larva. Karakterisasi Isolat Vibrio Berdasarkan hasil isolasi pada sampel air, dapat dikarakterisasi tujuh isolat yang memiliki perbedaan karakteristik secara makroskopis dan mikroskopis (Tabel 2).
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