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All Journal Jurnal Veteriner JOURNAL OF COASTAL DEVELOPMENT
Gina Saptiani
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Education Veterinary

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Toksisitas Produk Ekstraseluler dan Intraseluler Bakteri Pseudomonas sp. pada Ikan Nila (Oreochromis niloticus) (TOXICITY OF EXTRACELLULAR AND INTRACELLULAR PRODUCT OF PSEUDOMONAS SP IN TILAPIA (OREOCHROMIS NILOTICUS) Esti Handayani Hardi; Catur Agus Pebrianto; Gina Saptiani
Jurnal Veteriner Vol 15 No 3 (2014)
Publisher : Faculty of Veterinary Medicine, Udayana University and Published in collaboration with the Indonesia Veterinarian Association

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Abstract

The aim of the research was to investigate the toxicity of extracellular product (ECP) and intracellularproduct (ICP) of Pseudomonas sp. on tilapia. A total of 40 tilapias weighing 15 grams were injected withECP and ICP. The ECP and ICP were harvested from Pseudomonas sp. culture on two kinds of culturemedia and different time of incubation. The Pseudomonas was cultured on trypticase soy agar (TSA) andtrypticase soy broth (TSB) and incubated at 24, 48 and 72 hours. The slurry of the bacteria was centrifugedat 10000 g, for 30 minutes on 4oC to get ECP and in room temperature to get ICP. The supernatant wasfiltered with 0.45 ?m paper mesh. A hundred percent mortality was found in tilapia six hours postinjection with ICP (72 hours) whereas tilapias were injected with ECP caused 60% mortality in 12 hours.The tilapia showed whirling at 24 hour post injected with ECP of Pseudomonas sp which was cultured inTSA for 48 hours incubated. Opacity of the cornea and exopthalmia were occurred at 48 hours postinjection of ECP and ICP which were harvested from both media. Injection of ICP caused pathologychanges on internal organ of fish i.e. pale appearance of spleen and liver. In conclusion, the ECP and ICPwere a virulence factors of Pseudomonas sp. and the ICP seem more pathogenic and caused mortality thanECP. Both culture media and time of incubation influence of ECP and ICP production. The ECP and ICPwhich were harvested from Pseudomonas sp incubate for 24-48 hour more virulent than 72 hour.
THE EFFECTIVENESS OF Acanthus Ilicifolius IN PROTECTING TIGER PRAWN (Penaeus monodon F.) FROM Vibrio harveyi INFECTION Gina Saptiani; Slamet Budi Prayitno; Sutrisno Anggoro
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Sea holly (Achantus ilicifolius) is a mangrove plant that often used by coastal society as a traditional medicine.  It is potential to be developed as the sources of pharmaceutical products. This study aims at assessing the effectiveness of sea holly leaves as antibacterial agent and as an agent to enhance the durability of shrimp against Vibrio harveyi.  First, dried sea holly leaves were extracted with methanol, after that, it was fractionated with silica gel column method using solvent n-hexane, ethyl acetate, and n-butanol.  The treatments given to tiger prawn were crude extract, the fraction of ethyl acetate, and n-butanol, and it was given by immersion.   Next, the challenge test was conducted toward Vibrio harveyi.  As the result, the extract and the leaves of A. ilicifolius possess activities of inhibiting the growth of V. harveyi in vivo, reducing the prevalence of attacks and improving survival of prawn. In general, based on clinical symptoms and pathological anatomy, n-butanol fraction of the A.  ilicifolius leaves possess the best protection, along with ethyl acetate fraction and the crude.
Co-Authors Catur Agus Pebrianto Esti Handayani Hardi slamet budi prayitno Sutrisno Anggoro