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All Journal Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Omni-Akuatika Sains Akuakultur Tropis : Indonesian Journal of Tropical Aquaculture Jurnal Kelautan dan Perikanan Terapan (JKPT) PENA AKUATIKA : JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Sri Hastuti
Aquaculture Department, Faculty Of Fisheries And Marine Science, Universitas Diponegoro
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science Social Sciences

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Journal : Omni-Akuatika

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The Growth Performance of Larasati tilapia (Oreochromis niloticus Linnaeus, 1758) Farming Using Bioflocs Technology Fajar Basuki; Sri Hastuti; Subandiyono Subandiyono; Wartono Hadie
Journal Omni-Akuatika Vol 13, No 2 (2017): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (494.924 KB) | DOI: 10.20884/1.oa.2017.13.2.247

Abstract

This research was aimed to discover the growth of converted Larasati tilapia (Oreochromis niloticus Linnaeus, 1758) using bioflocs system on its farming, the dynamics of its water quality, and the fish health condition. Bioflocs is the utilization of floc-forming bacteria (flocs forming bacteria) for sewage treatment. Waste mentioned in fish farming is particularly faeces and feed residue. This research took place at Laboratory of Aquaculture, Fisheries Department, Faculty of Fisheries and Marine Science of Diponegoro University. It started from May 2013 to August 2013. The design of the research was exploratory. The data of Larasati tilapia are from Janti, weighted 93.32 g or 200 fish per m3. The fiber tank with 2 m3 capacity is prepared for the bioflocs technique. The result shows that the growth of Larasati  tilapia with bioflocs system on its farming is better than with the conventional system. The survival rate SR reaches 90 % and food corvertion ratio FRC reaches 0.82. The water quality shows that there is oxygen dynamics around 4 mg · L–1 to 5 mg · L–1 and Amonia around 0.01 mg · L–1 to 0.015 mg · L–1. Based on the cell concentration and the blood chemistry, it can be concluded that the L.  tilapia with bioflocs system on its farming is healthy.
The Role of Filter with Different Media Compositions on Water Quality and Survival of Pangasius (Pangasius sp.) in Recirculation Aquaculture System Ariska Nur Oktavia; Sri Hastuti; Dicky Harwanto
Journal Omni-Akuatika Vol 17, No 1 (2021): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2021.17.1.824

Abstract

The high market demand for Pangasius (Pangasius sp.) has encouraged farmers to adopt a cultivation system with high stocking densities and high feeding rates. This causes fish farming waste to increase and ammonia in the waters also increases, resulting in a decrease in water quality. One of the efforts to overcome this problem is by using Recirculation Aquaculture System (RAS). This study aims to examine the effect of filters with different media compositions in RAS of Pangasius. Test fish, average weight of 4.59 g, kept for 30 days in aquarium with a density of 1.15 g.L-1. The feed is given at satiation, twice a day. There were five treatments and four replications during study. The treatments were the difference composition of filter media, i.e. A (100% zeolite), B (25% net + 75% zeolite), C (50% net + 50% zeolite), D (75% net + 25% zeolite), and E (100% net). Dacron was used as a mechanical filter in all treatments. The results showed that the composition of different filter materials had a significant effect (P <0.05) on Survival Rate (SR), Total Amount of Feed Fed (TFF), Relative Growth Rate (RGR), and Feed Conversion Efficiency (FCE). The best performance was showed by media biofilter composition of 25% nets + 75% zeolite, with the value of VTR (Volumetric Total Ammonia Nitrogen Removal) were 55.45-66.32 g.m-3.day-1, SR was 93.75%; TFF was 124.84 g; RGR was 2.13%.day-1, and FCE was 46.87%. Various different compositions of net and zeolite as filter media on RAS were able to manage TAN below tolerance limit.Keywords: catfish, recirculation system, filter composition, dacron, net, zeolite.
Co-Authors . Subandiyono .Subandiyono Subandiyono Agung Sudaryono Alfianti Triwardani Ana Rosyida Anis Marfuah Ardiansah Khoirur Rahman Arifah Ilhammi Putri Ariska Nur Oktavia Beucita Juvenillania Puteri Cut Qanita Hidayah Dara Ayu Shabrina Dewi Nurhayati Dewi Nurhayati Dewi Nurhayati Diana Chilmawati Diana Rachmawati Dicky Harwanto Fadjar Basuki Fajar Basuki Fajar Basuki Fajar Basuki Fitriyatus Shoimah Istiyanto Samidjan Kesuma Putri Utami Krisna Pasaribu Marelin Kusumastuti Muhammad Reyza Dwi Satria Pinandoyo Pinandoyo Rimadani Eka Mareta Ristiawan Agung Nugroho Ristiawan Agung Nugroho Ristiawan Agung Nugroho Rizkiana Amalia Rosa Amalia Sandhika Yoga Virgiawan Sarah Sekar Komalasari Sarjito - Sarjito Sarjito Septi Nurkholifah Seto Windarto Siti Afia Dwiastuti Siti Maryam Siti Qotijah Slamet Budi Prayitno Subandiyono Subandiyono Subandiyono Subandiyono Subandiyono Subandiyono Subandiyono Subandiyono Subandiyono Subandiyono Sulasi Sulasi Taufan Kurniatama Titik Susilowati Tristiana Yuniarti Tristiana Yuniarti Tyas Hertanti Vania Trisnasari Voni Lidya Adiningrum Wartono Hadie Wildah Faizati