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INDONESIA
e-Jurnal Rekayasa dan Teknologi Budidaya Perairan
Published by Universitas Lampung
ISSN : 23023600     EISSN : 25975315     DOI : -
Core Subject : Science,
Computer Science & IT Earth & Planetary Sciences
e-JRTBP is a periodical journal that serves as a means of scientific communication and to disseminate research results. Fields of study include fisheries cultivation, management, and utilization of fishery resources. e-JRTBP is published twice a year, February and October.
Arjuna Subject : -
Articles 3 Documents
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Search results for , issue "Vol. 11 No. 2 (2023)" : 3 Documents clear
EFFECTIVENESS OF FERMENTATION OF FEED WITH DIFFERENT PROTEINS ON BIOFLOCK SYSTEM ON GROWTH TILAPIA (Oreochromis niloticus) Sahendra, Satria Ari; Cokrowati, Nunik; Scabra, Andre Rachmat
e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Vol. 11 No. 2 (2023)
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrtbp.v11i2.p%p

Abstract

Tilapia (Oreochromis niloticus) is a well known aquaculture fish commodity in Indonesia. The fermentation process of feed is a technology to increase the protein of raw materials. The purpose of this research is to find out and evaluate the effect of feed fermentation on survival, long and heavy growth, feed conversion, protein retention and water quality on tilapia who maintenance with bioflok system. The study was conducted for 60 days using tilapia fish with an average length of 5 cm and an average weight of 2 grams / tail, then maintained with a bioflok system. The treatment will be fermented for 1 day using EM4 in feed with 25%, 20%, 15%, and 25% unfermented protein feed control. The results of this study showed a real influence on the absolute long growth parameters with the highest values in P2 with a value of 2.4 cm and the lowest in P3 and P4 with the same value of 1.8 cm. at the specific long growth rate the highest value at P2 is 0.86%/day and the lowest in P3 and p4 with the same value of 0.7%/day. Then protein retention, the best treatment value is in P2 with a value of 5.5% and the lowest in P4 with a value of 3.1%.
MONOGENEAN PARASITES AND HISTOPATHOLOGY ON HUMPBACK GROUPER (Cromileptes altivelis) IN FLOATING NET CAGES LAMPUNG WATER, INDONESIA Putri, Septi Malidda Eka; Amiin, Muhammad Kholiqul
e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Vol. 11 No. 2 (2023)
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrtbp.v11i2.p%p

Abstract

Humpback grouper (Cromileptes altivelis) is an important commodity in Indonesian. This study aims to report the parasitic humpback grouper worms from eight floating net cages, as well as to observe the histological pathogenesis caused by parasites. May 2019, a total of 80 humpback groupers are used for parasitological and histopathological analysis. Monogenean trematodes Neobenedenia girellae, and Haliotrema epinepheli are found in fish examined. Histopathological analysis showed necrosis, congestion, partial fusion, epithelial hyperplasia, haemorrhage, and telangiectasia. It is important to know monogenean parasites from cultivated fish and pathogenesis caused by parasites to ensure fish production and host health.
ANTIBACTERIAL ACTIVITY AND TOXICITY TEST OF SPONGE EXTRACT Stylissa massa (Carter, 1887) FROM LAMPUNG WATERS Susanti, Oktora Susanti,; Setyawan, Agus; Puspitasari, Dwi; Parabi, Achmad Reza; Sari, Azzahra Indah; Habib, Farid Alif; Hilmi, Haidar; Rahaz, Muhammad Faiz Thoyib; Maharani, Ni Putu Diva; Alfina, Ria; Gunawan, Riyan
e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Vol. 11 No. 2 (2023)
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrtbp.v11i2.p%p

Abstract

Geographically, indonesia is natural resource countries which have large marine biodiversity, one of these is the coral reefs ecosystem. Sponge is one of any animal of the phylum porifera and a marine invertebrates that live in coral reefs ecosystem. Stylissa massa sponge can produce these secondary of metabolic processes in cells in his body. Many research stated that extracts of sponges having compound that is the sitotoksin bioaktif, anti tumor, antiviral drug, anti inflammatory and others. Stylissa massa is one species of sponge that characterizes demospongiae class, phylum porifera, and kingdom animalia. The study aimed to identify the activity of extracts antimikroba Stylissa massa on several pathogens derived from waters and land, and this study also to determine the level of toxicity Stylissa massa extract with Brine Shrim Lethality Test (BSLT). The antibacterial activity Stylissa massa extract against MDR S. aureus, MDR E.coli, Vibrio vulnivicus, Vibrio parahameolyticus, Vibrio alginoliticus, Vibrio harveyi, Salmonella thypi, Staphylococcus aureus, Escherichia coli and Aeromonas hydrophyla. The results showwed that the extract of Stylissa massa hase been created inhibition zone against all of the pathogen used. S.aureus bacteria at the smallest extract concentration (10 ppm) has created inhibition zone 8,68 mm and at the highest extract concentration (10.000 ppm) has created inhibition zone 10,83 ppm. The results of the analysis by using a graph indicating that probit LC50 extract Stylissa massa is 100 µg/mL, from the data can be concluded that extracts sponges stylissa massa have cytotoxic potential.Keyword: Sponge, Stylissa massa, extract, antibacterial, BSLT

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