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Respon Fisiologi Benih Ikan Kerapu Macan Epinephelus fuscoguttatus Terhadap Penggunaan Minyak Sereh dalam Transportasi Tertutup dengan Kepadatan Tinggi Supriyono, Eddy; Budiyanti, Budiyanti; Budiardi, Tatag
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 15, No 2 (2010): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

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Ikan Kerapu Macan merupakan salah satu komoditas ikan air laut yang cukup digemari oleh masyarakat dan memiliki nilai ekonomis yang tinggi. Masalah yang sering dihadapi oleh petani adalah sulitnya mendapatkan benih ikan kerapu yang cukup baik karena jarak antara tempat pembesaran dan tempat pembenihan relatif jauh. Oleh karena itu dibutuhkan teknologi yang tepat yang dapat mengangkut ikan dalam waktu yang lama, tingkat kelangsungan hidup yang tinggi serta kondisi fisiologi ikan pasca pengangkutan yang tetap baik. Penelitian ini bertujuan untuk menganalisis dampak penggunaan minyak sereh terhadap respon fisiologi berupa gambaran darah, histologi jaringan dan pertumbuhan serta kelangsungan hidup  benih ikan kerapu macan dengan ukuran panjang rata-rata 7 cm dan berat rata-rata 4,02 gram yang diangkut di dalam sistem tranportasi tertutup dengan kepadatan tinggi selama 56 jam. Rancangan acak lengkap digunakan dengan 4 perlakuan, yaitu tanpa minyak sereh (Kontrol) minyak sereh 10, 20 dan 30 mg/L dengan 2 ulangan. Hasil penelitian menunjukkan bahwa penambahan minyak sereh 10 mg/L lebih baik dibandingkan perlakuan yang lain, baik dilihat dari kualitas air dengan nilai Total Ammonia Nitrogen (TAN) terendah  6,459±1,290 mg/L, CO2 32,561±6,498 mg/L, maupun dari kondisi fisiologi berupa kadar glukosa 50,375±28,390 mg/dl, nilai gambaran darah berupa sel darah merah 1,28x106 sel/mm3, sel darah putih 2,60x104 sel/mm3, N:L (Netrofil:Limfosit) rasio 0,41% yang mendekati nilai kondisi ikan normal,  kondisi histologi berupa  tingkat kerusakan insang yang paling rendah  dan nilai SR tertinggi 97,5% serta laju pertumbuhan 1,33%. Kata kunci: kerapu macan, minyak sereh, respon fisiologi, transportasi tertutup, kepadatan tinggi Tiger Grouper is one of marine fish commodities well-loved by the community and have high economic value. The problem often faced by grouper farmers is the difficulty to obtain the good seed because the distance between the place where the hatchery rearing and relatively remote. Therefore, it needs a proper technology to transport the fish for a long time, the survival rate is high and the condition of post-transport physiology of fish that remain good. This study was aimed to evaluate the impact of the use of citronella oil on the physiological responses of the juvenile tiger grouper with emphasized on the evaluation of blood characteristics, histophatological change, growth and survival rate of the fish.  The fish with an average length of 7 cm and an average of 4,02 grams in weight which are transported in high density of sealed transportation system for 56 hours. Completely randomized design (CRD) was applied with 4 treatments (Without citronella oil (K/Control), 10, 20, 30 mg/L of citronella oil respectively and 2 replications. The results showed that application of 10 mg/L of citronella oil was better than the other concentration, in terms of water quality with low Total Ammonia Nitrogen (TAN) value 6.459 ± 1.290 mg/L, CO2 32.561 ± 6.498 mg/L, and the physiological conditions  such as glucose level was  50,375 ± 2.390 mg/dL , red blood  cell  value was 1,28x106 mm3, leucocyte  value was 2,60x104 mm3, N: L ratio was 0.41%, the lowest gill damage and the highest survival rate and growth rate ; those conditions were  close to the normal fish. Key words:    juvenile tiger grouper, citronela oil, physiological responses, sealed transporatation system, high density
Growth performance and nutrition value of Spirulina sp. under different photoperiod Budiardi, Tatag; Priyo Utomo, Nur Bambang; Santosa, Asep
Jurnal Akuakultur Indonesia Vol 9, No 2 (2010): Jurnal Akuakultur Indonesia
Publisher : Jurnal Akuakultur Indonesia

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This study was conducted to analyze the production of freshwater Spirulina sp. cultured with photoperiod manipulation treatment. In this study, photoperiod manipulation treatment performed on cultured spirulina using fiber tanks (100 L). Spirulina was grown with different photoperiod (bright/T and dark/G) that are six hours per day (6T-18G), 12 hours per day (12T-12G), 18 hours per day (18T-6G), and 24 hours per day (24L-0G). The parameters were observed include dry biomass, population density (N), specific growth rate (SGR), doubling time (G), proximate analysis, and water quality. The results of this study showed that the optimum population density was achieved on day-3 days of cultured, and manipulation photoperiod showed no significant effect to the dry biomass harvest and population density, but significantly affect the specific growth rate and doubling time. Treatment of lighting 12, 18 and 24 hours per day to produce the maximum specific growth rate (0,345 to 0,366 per day) and a maximum doubling time (1,89 to 2,01 days) were not significantly different, whereas the old treatment six hours per day lighting showed the lowest maximum growth rate (0,323 per day) and highest doubling time (2,15 days). At treatment of lighting 12 hours per day, relatively higher protein content (39,73%) than others. In conclusion, the lighting 12 hours per day resulted in optimum production efficiency than other treatments.Keywords: Spirulina sp., photoperiod, density, biomass, growth, nutrition value. ABSTRAKPenelitian ini dilakukan untuk menganalisis produksi spirulina Spirulina sp. air tawar yang dikultur dengan manipulasi fotoperiode.  Dalam penelitian ini, spirulina dikultur dalam wadah fiber 100 L dengan perlakuan fotoperiode (terang/T dan gelap/G) berbeda, yaitu enam jam per hari (6T-18G), 12 jam per hari (12T-12G), 18 jam per hari (18T-6G), dan 24 jam per hari (24T-0G). Parameter yang diamati meliputi biomassa kering, kepadatan populasi (N), laju pertumbuhan spesifik (SGR), waktu penggandaan (G), dan analisis proksimat sprirulina, serta kualitas air. Hasil penelitian menunjukkan bahwa kepadatan populasi optimum dicapai pada hari ke-3 umur kultur dan manipulasi fotoperiode tidak berpengaruh nyata terhadap hasil biomassa kering dan kepadatan populasi, namun secara nyata mempengaruhi laju pertumbuhan dan waktu penggandaan. Perlakuan pencahayaan 12, 18 dan 24 jam per hari menghasilkan laju pertumbuhan spesifik maksimum (0,345 sampai dengan 0,366 per hari) dan waktu penggandaan maksimum (1,89 sampai dengan 2,01 hari) yang tidak berbeda nyata, sedangkan perlakuan pencahayaan enam jam per hari menunjukkan laju pertumbuhan maksimum terendah (0.323 per hari) dan waktu penggandaan tertinggi (2,15 hari). Pada perlakuan pencahayaan 12 jam per hari, kandungan protein relatif lebih tinggi (39,73%) dari yang lain. Secara umum dapat disimpulkan bahwa  pencahayaan 12 jam per hari menghasilkan efisiensi produksi yang lebih baik daripada perlakuan lainnya.Key word: Spirulina sp., fotoperiode, kepadatan, biomassa, pertumbuhan, kandungan nutrisi.
Infection control of Aeromonas hydrophila in catfish (Clarias sp.) using mixture of meniran Phyllanthus niruri and garlic Allium sativum in feed Wahjuningrum, Dinamella; Solikhah, Eka Hidayatus; Budiardi, Tatag; Setiawati, Mia
Jurnal Akuakultur Indonesia Vol 9, No 2 (2010): Jurnal Akuakultur Indonesia
Publisher : Jurnal Akuakultur Indonesia

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Motile aeromonad septicaemia (MAS) is caused by the bacterium Aeromonas hydrophila. The use of plant (natural materials) such as meniran and garlic can be as an alternative way to inhibit the activity of A. hydrophila by their active substances which have potency as an antibacterial and immunostimulant. The aim of this study was to analyze the effectiveness of using a mixture of meniran and garlic in feed to control of A. hydrophila in catfish. There were split in two kind of doses namely, preventive (garlic:meniran=5 ppt:20 ppt) and curative (garlic:meniran=10 ppt:40 ppt). The preventive treatment was given for two weeks before challenging test. The curative treatment was performed on 2th-8th day after challenging test.  Challenging test was carried out by intramuscularly injecting of 0,1 mL A. hydrophila (108cfu/ml)  into the fish. The results indicated that preventive treatment with a mixture of extracts 5 ppt meniran and 20 ppt garlic was more effective in preventing infection of A. hydrophila than curative treatment.  Keywords: Phyllanthus niruri, Allium sativum, catfish, Aeromonas hydrophila.  ABSTRAK  Penyakit MAS (motile aeromonad septicaemia) disebabkan oleh bakteri Aeromonas hydrophila. Bahan alami seperti meniran dan bawang putih dapat digunakan sebagai alternatif untuk menghambat aktivitas bakteri ini.  Zat aktif yang dimiliki bahan ini berpotensi sebagai antibakteri dan immunostimulan. Tujuan dari penelitian ini adalah untuk menganalisis efektivitas penggunaan campuran meniran dan bawang putih dalam pakan untuk pengendalian penyakit MAS pada ikan lele. Perlakuan dibagi menjadi dua dosis, yaitu pencegahan (bawang putih:meniran=5 ppt:20 ppt) dan pengobatan (bawang putih:meniran=10 ppt:40 ppt). Perlakuan pencegahan diberikan selama seminggu sebelum uji tantang. Perlakuan pengobatan dilakukan pada hari ke 2 hingga hari ke-8 setelah uji tantang. Uji tantang dilakukan dengan menyuntikkan secara intramuskuler 0,1 ml A. hydrophila (108cfu/ml) ke ikan lele. Hasil penelitian menunjukkan bahwa perlakuan pencegahan dengan campuran ekstrak meniran 5 ppt dan bawang putih 20 ppt efektif dalam mencegah infeksi A. hydrophila dibandingkan dengan perlakuan pengobatan dengan campuran ekstrak meniran 10 ppt dan 40 ppt bawang putih.   Kata kunci: meniran, bawang putih, lele, Aeromonas hydrophila. 
Pemeliharaan Ikan Sidat dengan Sistem Air Bersirkulasi Affandi, Ridwan; Budiardi, Tatag; Wahju, Ronny Irawan; Taurusman, Am Azbas
Jurnal Ilmu Pertanian Indonesia Vol 18, No 1 (2013): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Today, eel resource especially seeds in Indonesia has not been used for eel culture activities. To be able to optimally utilize the seeds that led to the production of eels for consumption needs adequate cultivation technology. This study aimed to obtain performance information of survival rate, growth rate, and feed conversion ratio to support mass production of eel consumption. The experiments were performed using aquarium of (0.8 x 0.4 x 0.4) m3 and concrete tank (1.7 x 1.7 x 1) m3 with circulating water. Eel used were elver (1.2-1.5 g) and fingerlings (15-17 g). Silk worms (Tubifex) and artificial feed in the pasta form were used as feed. The results showed that the elver reared in aquarium or concrete tank with water recirculation system showed high survival rate of 78-79% and 86-96%, respectively. The specific growth rate (SGR) was good (0.6-0.8%), but the feed conversion was still high (33-21) for the elver fed with silk worms and very good (0.6-0.7) for elver fed with artificial feed. The juvenile eel reared in a concrete tank showed SR up to 85-94%, the SGR ranged from 0.8 to 1.2%, and feed conversion from 0.61 to 0.69. It can be concluded that the rearing of seed eel can be done incontainer using water recirculation system with stocking density of 3 individuals/land 1.5 kg/m3 in preparing the seed to be ready tobe cultivated outdoors. Keywords: elver, feed conversion ratio, juvenile, specific growth rate, water recirculation system
Protein digestibility and ammonia excretion in catfish Clarias gariepinus culture Gunadi, Bambang; Harris, Enang; Supriyono, Eddy; Sukenda, .; Budiardi, Tatag
Jurnal Akuakultur Indonesia Vol 12, No 1 (2013): Jurnal Akuakultur Indonesia
Publisher : ISSA

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ABSTRACT A series of experiments was performed to analyze protein digestibility, ammonia excretion, and also heterothropic bacteria and phytoplankton dynamics in the catfish Clarias gariepinus culture. In the digestibility experiment, catfish with an individual initial size of 43.67±0.83 g were stocked into 120 L conical fiberglass tanks at a density of 20 fish per tank. Fish were fed on with commercial diet supplemented with Cr2O3 indicator at a concentration of 1%. In the ammonia excretion experiment, catfish with an individual size of 111.6±9.5 and 40.6±3.4 g, respectively,  were placed into a 10 L chamber filled with 8 L of water. Total ammonia nitrogen (TAN) in the chambers were monitored every hour for six consecutive hours. In the bacteria and phytoplankton dynamics experiment, catfish were stocked in the 25 m2 concrete tanks which was divided into two compartments (catfish 10 m2, and heterotrof compartments 15 m2). Catfish with individual size of 42,5±0 g were stocked into the tanks at a density of 100 fish per tank. Water was recirculated from catfish compartments to heterotrophic compartments. Fish were fed with floating feed. Molasses as carbon source for heterotrophic bacteria was applied daily. The experiment was conducted for six weeks. The results showed that the protein digestibility was 61.97±7.24%. Larger fish (size of 111.6 g) excreted ammonia at a rate of 0.008±0.003 mg TAN/g fish-weight/hour, which was lower than that of the smaller catfish (size of 40.6 g), i.e. 0.012±0.004 mg TAN/g fish-weight/hour. Keywords: protein digestibility, ammonia excretion, catfish  ABSTRAK Serangkaian penelitian telah dilakukan untuk menganalisis ketercernaan pakan dan protein, ekskresi amonia, serta dinamika bakteri dan fitoplankton pada budidaya ikan lele (Clarias gariepinus). Pada penelitian ketercernaan pakan, ikan lele berukuran 43,67±0,83 g/ekor dipelihara dalam bak fiberglas berbentuk corong berukuran 120 L dengan kepadatan 20 ekor/bak. Ikan diberi pakan berupa pelet yang diberi indikator Cr2O3 sebanyak 1%. Pada penelitian ekskresi amonia, ikan lele berukuran 111,6±9,5 dan 40,6±3,4 g/ekor yang telah diberi makan sampai kenyang dimasukkan ke dalam stoples berisi 8 L air. Kadar amonia total (total ammonia nitrogen, TAN) di dalam stoples diukur setiap jam selama enam jam. Pada penelitian dinamika bakteri dan fitoplankton, ikan lele dipelihara pada bak beton berukuran 25 m2 yang disekat menjadi dua bagian yaitu bagian ikan lele (10 m2) dan bagian heterotrof (15 m2). Ikan lele dengan bobot awal 42,5 g/ekor ditebar ke dalam bak dengan kepadatan 100 ekor/bak. Air mengalir secara resirkulasi dari bagian ikan lele ke bagian heterotrofik dengan bantuan pompa. Pakan yang diberikan berupa pelet apung komersial. Molase ditambahkan setiap hari sebagai sumber karbon untuk pertumbuhan bakteri heterotrofik. Penelitian dilaksanakan selama enam minggu. Hasil pengamatan menunjukkan bahwa ketercernaan protein dari pakan yang diuji adalah 61,97±7,24%. Ikan lele berukuran besar (111,6 g/ekor) menghasilkan amonia sebanyak 0,008±0,003 mg TAN/g ikan/jam, lebih rendah dibandingkan dengan ikan yang berukuran lebih kecil (40,6 g/ekor), yaitu 0,012±0,004 mg TAN/g ikan/jam.  Kata kunci: ketercernaan protein, ekskresi amonia, ikan lele
Feeding rate of freshwater eel Anguilla bicolor bicolor: at the body weight of 1–2 g Fekri, Latifa; Affandi, Ridwan; Budiardi, Tatag
Jurnal Akuakultur Indonesia Vol 13, No 1 (2014): Jurnal Akuakultur Indonesia
Publisher : ISSA

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ABSTRACT The aim of the research was to determine feed requirement for the maintenance, optimum, and maximum growth of freshwater eel (Anguilla bicolor bicolor) seed (1–2 g body weight). Feed used in this research was KRA feed with 46% protein content, with different feeding level (FR) at 0%, 5%, 10%, and 15% of fish biomass. The experiment was conducted in 30 days. Parameters measured were survival and specific growth (SGR). The results showed that survival of fish in all treatments were 100%, except in fish fed on 15% of biomass (only 96). Fish growth with feeding of 0%, 5%,10%, and 15%, were -1.06%; 0.42%; 0.73%; and 0.19%, respectively. Based on the analysis of the relationship between feeding level and growth, the feed requirement for maintenance, optimum, and maximum growth in 1–2 g freshwater eel seed were 3.3%; 7.0%; and 9.5% of the biomass, respectively. Keywords: eel seed, feed requirement, growth ABSTRAK Penelitian dilakukan dengan tujuan untuk mendapatkan kebutuhan pakan untuk maintenance, dan untuk pertumbuhan optimum serta maksimum benih ikan sidat (Anguilla bicolor bicolor) (bobot tubuh 1–2 g). Pakan yang digunakan pada penelitian ini adalah pakan KRA dengan kadar protein 46%, dengan tingkat pemberian pakan 0%, 5%, 10%, dan 15% dari bobot biomassa ikan. Pemeliharaan berlangsung selama 30 hari. Parameter yang diukur meliputi sintasan (STS) dan laju pertumbuhan spesifik (LPS). Hasil penelitian menunjukkan bahwa STS benih ikan sidat selama pemeliharaan, memiliki nilai yang baik (100%) kecuali pada pemberian pakan 15% (hanya 96%). Laju pertumbuhan benih ikan sidat selama pemeliharaan dengan pemberian pakan 0%, 5%, 10%, dan 15% berturut-turut adalah -1,06%; 0,42%; 0,73%; dan 0,19%. Berdasarkan analisis hubungan antara tingkat pemberian pakan dan laju pertumbuhan spesifik, maka kebutuhan pakan maintenance, pertumbuhan optimum dan maksimum benih ikan sidat berukuran 1–2 g berturut-turut adalah 3,3%; 7%; dan 9,5% dari biomassa. Kata kunci: benih ikan sidat, kebutuhan pakan, pertumbuhan
The growth of eel fed with different protein level and protein-energy ratio Nawir, Fitria; Utomo, Nur Bambang Priyo; Budiardi, Tatag
Jurnal Akuakultur Indonesia Vol 14, No 2 (2015): Jurnal Akuakultur Indonesia
Publisher : ISSA

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ABSTRACT The study was aimed to determine the optimum dietary protein level and energy protein ratio which can optimize growth performance of the eel A. bicolor bicolor on nursery phase.  Four treatments and three replications were applied in this study. The treatments were  P1, containing 37.66% protein with energy protein ratio 14.75 kcal GE/g (37.66%; 14.75 kcal GE/g), treatment P2 (41.30%; 13.51 kcal GE/g), treatment P3 (45.38%; 12.27 kcal GE/g), and treatment P4 (49.60%; 11.31 kcal GE/g). Eels used for this study were 6.5±0.3 g in average body weight. Eels were reared in a series of aquaria with dimension 90×40×40 cm3 and filled with 100 L of fresh water. Total weight of eel stocked in aquarium were 400 g. Eels were fed until satiated  twice a day at 8 am and 4 pm for 60 days. The result showed  that different protein level and energy protein ratio was significantly affected  growth performance (feed consumption, specific growth rate, feed efficiency, protein retention, and lipid retention), protein and fat of whole body eels at confident limit of 5%. In contrary, there was no significant different on the survival rate, hepatosomatic index, ash content, and nitrogen free extract of the body eel. The optimal growth performance was reached by dietary protein level and energy protein ratio of 45.38%; 12.27 kcal GE/g and 49.60%; 11.31 kcal GE/g. Keywords: Anguilla bicolor bicolor, energy protein ratio, feed, growth performance, protein  ABSTRAK Penelitian ini bertujuan menentukan kadar protein dan rasio energi protein optimum yang dapat meningkatkan kinerja pertumbuhan ikan sidat A. bicolor bicolor fase pendederan. Empat macam perlakuan dan tiga ulangan digunakan dalam penelitian ini. Perlakuan tersebut adalah P1 yang mengandung protein 37,66%; dengan rasio energi protein 14,75 kkal GE/g (37,66%; 14,75 kkal GE/g), perlakuan P2 (41,30%; 13,51 kkal GE/g), perlakuan P3 (45,38%; 12,27 kkal GE/g) dan perlakuan P4 (49,60%; 11,31 kkal GE/g). Bobot rata-rata ikan sidat yang digunakan adalah 6,5±0,3 g. Ikan sidat dipelihara dalam akuarium berukuran 90×40×40 cm3 dengan volume air 100 L. Total bobot ikan yang digunakan dalam setiap akuarium adalah 400 g. Ikan sidat diberi pakan sekenyangnya dengan frekuensi dua kali sehari yaitu pukul 08.00 dan pukul 16.00 WIB selama 60 hari. Hasil menunjukkan bahwa pemberian kadar protein dan rasio energi protein pakan berbeda, memberikan pengaruh nyata (P<0,05) terhadap kinerja pertumbuhan (jumlah konsumsi pakan, laju pertumbuhan spesifik, efisiensi pakan, retensi protein, retensi lemak), protein tubuh dan lemak tubuh, tetapi tidak berpengaruh nyata (P>0,05) terhadap tingkat kelangsungan hidup, indeks hepatosomatik, kadar abu, dan bahan ekstrak tanpa nitrogen (BETN) tubuh ikan sidat. Kinerja pertumbuhan optimal dicapai oleh kadar protein dan rasio energi protein pakan 45,38%; 12,27 kkal GE/g dan 49,60%; 11,31 kkal GE/g.  Kata kunci: Anguilla bicolor bicolor, kinerja pertumbuhan, pakan, protein, rasio energi protein 
Increasing of C/N ratio with addition of tapioca starch in Oligochaetes culture substrate Hadiroseyani, Yani; Puspitasari, Ardina; Budiardi, Tatag
Jurnal Akuakultur Indonesia Vol 14, No 2 (2015): Jurnal Akuakultur Indonesia
Publisher : ISSA

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ABSTRACT This study was aimed to improve the productivity of sludge worm (Oligochaetes) in culture systems using the addition of tapioca flour to the substrate to increase C/N ratio up to 10, 20, and 30. The substrate used was a mixture of mud and chicken manure with a ratio of 1:1 on the container measuring 100×12×15 cm3. Culture system used was a recirculation system. Initial stock of the worm was at density 150 g/m2. Results showed the highest population and biomass of the worm in each treatments was occurred on tenth day. The highest density of sludge worm, i.e. 421,145 ind/m2 with total biomass of 1,497.80 g/m2, was obtained on the treatment of C/N ratio at 20 (P <0.05). Keywords: Oligochaetes, C/N ratio, tapioca starch, recirculation system  ABSTRAK Penelitian ini bertujuan untuk meningkatkan produktivitas cacing sutra (Oligochaeta) pada sistem budidaya dengan memperbaiki kualitas substrat cacing menggunakan penambahan tepung tapioka sehingga mencapai rasio C/N 10, 20, dan 30. Substrat yang digunakan yaitu campuran lumpur tanah dan kotoran ayam dengan perbandingan 1:1 pada wadah budidaya berukuran 100×12×15 cm3. Sistem budidaya yang digunakan yaitu sistem resirkulasi. Cacing dibudidayakan pada padat penebaran 150 g/m2. Hasil menunjukkan puncak populasi dan biomassa cacing sutra terjadi pada hari kesepuluh. Kepadatan cacing tertinggi, yaitu 421.145 ind/m2 dengan biomassa 1.497,80 g/m2, diperoleh pada perlakuan penambahan tepung tapioka dengan C/N rasio 20 (P<0,05). Kata kunci: cacing sutra, rasio C/N, tepung tapioka, sistem resirkulasi
Growth performance of 3-g Anguilla bicolor bicolor at different density Diansyah, Sufal; Budiardi, Tatag; Sudrajat, Agus Oman
Jurnal Akuakultur Indonesia Vol 13, No 1 (2014): Jurnal Akuakultur Indonesia
Publisher : ISSA

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ABSTRACT This study was carried out to evaluate growth performancce of eel (Anguilla bicolor bicolor) at the density of 2 g/L, 3 g/L, and 4 g/L in the recirculation system. The experimental design used was completely randomized design with three replications. The eel used for this study was Anguilla bicolor bicolor at stadia elver with average body weight of 3 g/fish. Fish were reared for 60 days. Analysis of the blood profile and blood glucose level were done every ten days, while cortisol measurement was performed three times on the day-0, 30, and 60. Results showed that stocking density affected biomass growth. The best stocking density was 4 g/L with the growth of 10.62 g biomass/day, the specific growth of 1.47%, 1.16 feed conversion, and survival of 96.24%. All treatments did not give significant effect on the blood glucose and cortisol level. Keywords: elver, stocking density, growth, stress response, recirculation system  ABSTRAK Penelitian ini dilakukan untuk mengevaluasi kinerja pertumbuhan ikan sidat (Anguilla bicolor bicolor) dengan padat tebar 2 g/L, 3 g/L, dan 4 g/L dalam sistem resirkulasi. Rancangan percobaan yang digunakan adalah rancangan acak lengkap dengan tiga ulangan. Ikan sidat yang digunakan adalah spesies Anguilla bicolor bicolor stadia elver dengan bobot rata-rata 3±1 g/ekor. Pemeliharaan dilakukan selama 60 hari. Analisis gambaran darah dan glukosa darah dilakukan setiap sepuluh hari sekali, sedangkan pengukuran kortisol dilakukan sebanyak tiga kali yaitu pada hari ke-0, 30, dan 60. Hasil penelitian menunjukkan bahwa perlakuan padat tebar berpengaruh nyata terhadap laju pertumbuhan biomassa. Padat tebar terbaik adalah 4 g/L dengan laju pertumbuhan biomassa 10,62 g/hari, laju pertumbuhan spesifik 1,47%, konversi pakan 1,16, dan sintasan 96,24%. Semua perlakuan padat tebar tidak memberikan pengaruh yang nyata terhadap kadar glukosa darah dan kortisol. Kata kunci : elver, padat tebar, pertumbuhan, respons stres, sistem resirkulasi
Pemeliharaan Ikan Sidat dengan Sistem Air Bersirkulasi Affandi, Ridwan; Budiardi, Tatag; Wahju, Ronny Irawan; Taurusman, Am Azbas
Jurnal Ilmu Pertanian Indonesia Vol 18, No 1 (2013): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Today, eel resource especially seeds in Indonesia has not been used for eel culture activities. To be able to optimally utilize the seeds that led to the production of eels for consumption needs adequate cultivation technology. This study aimed to obtain performance information of survival rate, growth rate, and feed conversion ratio to support mass production of eel consumption. The experiments were performed using aquarium of (0.8 x 0.4 x 0.4) m3 and concrete tank (1.7 x 1.7 x 1) m3with circulating water. Eel used were elver (1.2-1.5 g) and fingerlings (15-17 g). Silk worms (Tubifex) and artificial feed in the pasta form were used as feed. The results showed that the elver reared in aquarium or concrete tank with water recirculation system showed high survival rate of 78-79% and 86-96%, respectively. The specific growth rate (SGR) was good (0.6-0.8%), but the feed conversion was still high (33-21) for the elver fed with silk worms and very good (0.6-0.7) for elver fed with artificial feed. The juvenile eel reared in a concrete tank showed SR up to 85-94%, the SGR ranged from 0.8 to 1.2%, and feed conversion from 0.61 to 0.69. It can be concluded that the rearing of seed eel can be done incontainer using water recirculation system with stocking density of 3 individuals/land 1.5 kg/m3in preparing the seed to be ready tobe cultivated outdoors.