Jurnal Akuakultur Indonesia最新文献

{"title":"Substitution of natural feed with artificial feed on the survival rate and growth rate of giant-snakehead Channa micropeltes","authors":"Sarmila, S. Susilawati, Sri Warastuti","doi":"10.19027/jai.20.2.174-180","DOIUrl":"https://doi.org/10.19027/jai.20.2.174-180","url":null,"abstract":"The purpose of this study was to determine the best percentage of artificial feed substitution for growth and survival rate of giant-snakehead. This study used a completely randomized design (CRD) with 4 levels of artificial feed substitution dose treatment, namely 25%, 50%, 75%, 100%, and control (without artificial substitution). The feed used in the form of fresh trash fish mixed with artificial feed FF-999 with a protein content of 35%. The results showed that the control treatment (100% trash fish) gave the best survival rate and spesific growth rate of 75% and 2.12%/day, respectively. Meanwhile, the percentage of artificial feed substitution treatment which gave the best survival rate and specific growth rate was found in the substitution percentage treatment of 25% artificial feed with a survival rate of 66.67% and a daily weight growth rate of 1.89%/day. Substitution of 100% artificial feed caused death with a 0% survival rate. \u0000Keywords: artificial feed, feed substitution, giant-snakehead, survival rate, growth \u0000ABSTRAK \u0000Penelitian ini bertujuan menentukan persentase substitusi pakan buatan yang terbaik untuk laju pertumbuhan, dan tingkat kelangsungan hidup ikan toman. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan perlakuan 4 level dosis substitusi pakan buatan yaitu 25%, 50%, 75% dan 100% serta 1 kontrol (tanpa substitusi pakan buatan). Pakan yang digunakan berupa ikan rucah segar dicampur dengan pakan buatan berupa pellet dengan merk FF-999 berkadar protein 35%. Hasil penelitian menunjukkan bahwa perlakuan kontrol (100% ikan rucah) memberikan tingkat kelangsungan hidup dan laju pertumbuhan berat harian terbaik masing-masing sebesar 75% dan 2.12%/hari. Sementara untuk perlakuan persentase substitusi pakan buatan yang memberikan tingkat kelangsungan hidup dan laju pertumbuhan terbaik terdapat pada perlakuan persentase substitusi sebesar 25% pakan buatan dengan tingkat kelangsungan hidup 66.67% dan laju pertumbuhan berat harian 1.89%/hari. Substitusi 100% pakan buatan menyebabkan kematian dengan tingkat kelangsungan hidup 0%. \u0000Kata kunci: ikan toman, kelangsungan hidup, laju pertumbuhan, pakan buatan, substitusi pakan.","PeriodicalId":32090,"journal":{"name":"Jurnal Akuakultur Indonesia","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85630883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effectiveness of cinnamon powder and cinnamon leaf extract to prevent Aeromonas hydrophila infection on striped catfish Pangasianodon hypophthalamus","authors":"E. Susanti, D. Wahjuningrum, S. Nuryati, M. Setiawati","doi":"10.19027/jai.20.2.163-173","DOIUrl":"https://doi.org/10.19027/jai.20.2.163-173","url":null,"abstract":"Striped catfish Pangasianodon hypophthalamus is one of the intensive cultured commodities. Disease outbreak becomes inevitable to prevent in a fish culture. One of the most frequent disease occurred in striped catfish is the motile aeromonas septicemia (MAS) disease caused by Aeromonas hydrophila. This study aimed to evaluate the effectiveness of 1% dietary cinnamon powder and 0.5% dietary cinnamon leaf extract on the immune response of striped catfish challenged with A. hydrophila. Striped catfish used in this study sizing of 5.80 ± 0.21 g. This study contained two phases, namely in vitro and in vivo tests. In vitro test contained inhibition zone and antibacterial tests, which demonstrates that 1% cinnamon powder and 0.5% cinnamon leaf extract are effective to inhibit A. hydrophila activity. In vivo test contained four treatments, i.e fish fed with 1% cinnamon leaf powder supplemented diet; 0.5% cinnamon leaf extract supplemented diet, positive control diet, and negative control diet. Each treatment was performed in three replications. The result showed that 1% cinnamon leaf powder supplemented diet obtained the best results to enhance the immune response of striped catfish higher survival rate value at 83.33% than the positive control diet (P<0.05). \u0000Keywords: Aeromonas hydrophila, Cinnamomum burmannii, extract, Pangasianodon hypophthalmus, powder. \u0000ABSTRAK \u0000Ikan patin Pangasianodon hypophthalamus termasuk komoditas yang banyak dibudidayakan secara intensif. Kendala budidaya seperti penyakit pun sulit untuk dihindari. Salah satu jenis penyakit yang kerap menyerang ikan patin yaitu penyakit MAS (motile aermomonad septicaemia) yang disebabkan oleh Aeromonas hydrophila. Penelitian ini bertujuan untuk menguji efektivitas 1% (w/w) tepung dan 0,5% (w/w) ekstrak daun kayu manis dalam pakan sebagai upaya pencegahan infeksi bakteri A. hydrophila pada ikan patin. Ikan patin yang digunakan berukuran 5,80 ± 0,21 g. Penelitian ini terdiri dua tahap yaitu uji in vitro dan uji in vivo. Hasil uji in vitro terhadap aktivitas antibakteri menunjukkan bahwa dosis 1% (w/w) tepung daun kayu manis dan 0.5% (w/w) ekstrak daun kayu manis efektif dalam menghambat pertumbuhan A. hydrophila. Uji in vivo terdiri atas empat perlakuan yaitu pemberian pakan dengan penambahan tepung daun kayu manis 1% (w/w), pemberian pakan dengan penambahan ekstrak daun kayu manis 0,5% (w/w), kontrol positif, dan kontrol negatif  dengan masing-masing perlakuan terdiri atas tiga ulangan. Hasil penelitian menunjukkan bahwa penambahan 1% (w/w) tepung daun kayu manis dalam pakan memberikan hasil terbaik dalam meningkatkan respons imun ikan patin dengan tingkat kelangsungan hidup sebesar 83,33% lebih tinggi dibandingkan kontrol positif (P<0,05). \u0000Kata kunci: Aeromonas hydrophila, Cinnamomum burmannii, ekstrak, Pangasianodon hypophthalmus, tepung","PeriodicalId":32090,"journal":{"name":"Jurnal Akuakultur Indonesia","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77085058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Productivity and quality of Moina sp. cultivated with various culture medium","authors":"Taufik Shidik Adi Nugroho Shidik, J. Ekasari, D. Jusadi, M. Setiawati","doi":"10.19027/jai.20.2.148-162","DOIUrl":"https://doi.org/10.19027/jai.20.2.148-162","url":null,"abstract":"Cultivation of Moina sp is still constrained by its quality, productivity, and sustainability. The alternative solution is the use of cultivation media materials that have high nutritional content and easily available in large quantities to support the quality and productivity of Moina sp. and meet the needs of live feed. The objective of the study was to evaluate the effect of various culture medium on the productivity and nutritional quality of Moina sp.. Five culture media were tested in laboratory scale, i.e. organic ingredient (BO), Chlorella sp. (Ch), Chlorella sp. + organic ingredients (ChBO), biofloc (BF) and biofloc + organic ingredients (BFBO). While in mass scale, four culture media were tested, i.e. Chlorella sp. (Ch), Chlorella sp. + Organic Ingredients (ChBO), Biofloc (BF) and Biofloc + Organic Ingredients (BFBO). The peaks of Moina sp. density in different treatments were achieved in different days. ChBO treatments significantly had higher productivity (P<0.05). The highest protein content was found in Moina sp. cultured with ChBO media, even higher than artemia. Moina sp. cultured with Chlorella sp. (Ch) showed the highest PUFA (Poly Unsaturated Fatty Acids) contents, while the highest MUFA (mono unsaturated fatty acids) contents was obtained from Moina sp. cultured with BFBO media lower than artemia. The study results indicates that different culture media produces different productivity and nutrient quality of Moina sp. The organic material combination of Chlorella sp. + organic material (ChBO) was the best media to improve the productivity and protein quality of Moina sp.  \u0000  \u0000Keywords : Biofloc, Chlorella sp., Moina sp., organic matter, productivity, quality \u0000  \u0000ABSTRAK \u0000  \u0000Budidaya Moina sp. masih terkendala pada kualitas, produktivitas dan kestabilan dalam ketersediaannya. Untuk itu diperlukan penggunaan bahan media budidaya yang memiliki kandungan nutrisi tinggi dan mudah didapat dalam jumlah banyak untuk mendukung kualitas dan produktivitas Moina sp. demi memenuhi kebutuhan pakan hidup. Tujuan penelitian yaitu mengevaluasi pengaruh berbagai media budidaya terhadap produktivitas dan kualitas nutrisi Moina sp. Lima media kultur yang diuji dalam penelitian laboratorium yaitu Bahan Organik (BO), Chlorella sp. (Ch), Chlorella sp. + Bahan Organik (ChBO), Bioflok (BF) dan Bioflok + Bahan Organik (BFBO). Sedangkan pada penelitian skala massal diuji empat media kultur yaitu Chlorella sp. (Ch), Chlorella sp. + Bahan Organik (ChBO), Bioflok (BF) dan Bioflok + Bahan Organik (BFBO). Puncak kepadatan Moina sp. pada tiap perlakuan dicapai pada hari yang berbeda. Perlakuan ChBO memiliki produktivitas yang lebih tinggi (P<0,05). Kandungan protein Moina sp. tertinggi ditemukan pada media ChBO dan bahkan lebih tinggi dari pada artemia. Moina sp. yang dibudidayakan dengan Chlorella sp. (Ch), menunjukkan kandungan PUFA tertinggi, sedangkan kandungan MUFA yang tertinggi terdapat pada Moina sp. yang dibudidayakan dengan bahan media BFBO namun ma","PeriodicalId":32090,"journal":{"name":"Jurnal Akuakultur Indonesia","volume":"778 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77531306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cellulase hydrolyzed Indigofera zolingeriana leaf utilization as a feed ingredient for gourami fingerling","authors":"Jefry Jefry, M. Setiawati, D. Jusadi, I. A. Fauzi","doi":"10.19027/jai.20.2.139-147","DOIUrl":"https://doi.org/10.19027/jai.20.2.139-147","url":null,"abstract":"This study was aimed to evaluate the utilization of hydrolyzed Indigofera zolingeriana by celullase enzyme as the feed ingredient of gourami fish. This study used a completely randomized design which contained three steps, whereas each step contained four treatments and four replications. The first step performed by evaluating the Indigofera leaf meal (ILM) added with cellulase enzyme of 0 g/kg (control), 0.4 g/kg, 0.8 g/kg, and 1.2 g/kg. The second step was the digestibility test of ILM on gourami seeds. The third step was feed evaluation added with ILM as much as 0% (control), 15%, 30%, and 45% against the growth performance on gourami seeds. The gourami seeds used in the second and third steps with a weight of 13.65 ± 0.39 g/seed and 5.95 ± 0.15 g/seed, respectively. The addition of 0.8 g/kg and 1.2 g/kg cellulase enzyme could significantly decrease the crude fiber of ILM with 43.33%, besides having the best value of total, ingredient, protein, lipid, and energy digestibility. The growth performance of gourami seeds given 15% ILM added feed had the best value and insignificantly different from the control feed without ILM addition based on the specific growth rate (SGR), protein retention (PR), and feed efficiency (FE).        \u0000  \u0000Keywords: Cellulase, feed, hydrolyze, Indigofera zolingeriana, Osphronemus gouramy. \u0000  \u0000ABSTRAK \u0000  \u0000Penelitian ini dilakukan untuk mengevaluasi pemanfaatan daun Indigofera zolingeriana yang dihidrolisis enzim selulase sebagai bahan baku pada pakan benih ikan gurami. Penelitian ini menggunakan rancangan acak lengkap yang terdiri atas tiga tahap, dimana masing-masing tahap terdiri dari empat perlakuan dan empat ulangan. Pada tahap pertama dilakukan evaluasi tepung daun Indigofera (TDI) yang ditambahkan enzim selulase sebesar 0 g/kg (kontrol), 0.4 g/kg, 0.8 g/kg, dan 1.2 g/kg. Pada tahap kedua dilakukan uji kecernaan bahan TDI pada benih ikan gurami. Pada tahap ketiga dilakukan evaluasi pakan yang ditambahkan TDI sebesar 0% (kontrol), 15%, 30% dan 45%  terhadap kinerja pertumbuhan pada benih ikan gurami. Benih ikan gurami yang digunakan pada penilitian tahap kedua dengan bobot 13.65 ± 0.39 g/ekor dan 5.95 ± 0.15 g/ekor. Penambahan enzim selulase pada dosis 0.8 g/kg dan 1.2 g/kg secara signifikan mampu menurunkan serat kasar TDI sebesar 43.33 % dan memberikan nilai terbaik terhadap nilai kecernaan total, kecernaan bahan, kecernaan protein, kecernaan lemak dan kecernaan energi. Kinerja pertumbuhan benih ikan gurami yang diberikan pakan yang ditambahkan TDI sebesar 15% memilki nilai terbaik dan tidak berbeda nyata terhadap pakan kontrol tanpa TDI dari aspek laju pertumbuhan spesifik (LPS), retensi protein (RP) dan efisiensi pakan (EP). \u0000  \u0000Kata kunci: Hidrolisis, Indigofera zolingeriana, Osphronemus gouramy, pakan, selulase.","PeriodicalId":32090,"journal":{"name":"Jurnal Akuakultur Indonesia","volume":"8 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72477692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dietary supplementation of organic selenium to improve growth performance and protein utilization in African catfish fed with different protein level diets","authors":"G. M. Darmawangsa, M. Suprayudi, Nurbambang Priyo Utomo, J. Ekasari","doi":"10.19027/jai.20.2.130-138","DOIUrl":"https://doi.org/10.19027/jai.20.2.130-138","url":null,"abstract":"This study aimed to evaluate the effect of organic selenium supplementation on diet with different protein levels on the growth performance and protein utilization of African catfish juvenile. A randomized 2×3 factorial design with two dietary protein levels (27% and 32%) and three dietary selenium (Se) supplementation levels (0 mg/kg, 3 mg/kg, and 6 mg/kg diet) in triplicates were applied in the study. African catfish juvenile with an initial average body weight and body length of 27.00 ± 0.14 g and 15.0 ± 0.5 cm, respectively, was reared in 18 units of aquarium (141 L) at a density of 142 fish/m3 for a rearing period of 40 days. Increasing organic Se supplementation level up to 6 mg/kg at high protein feed resulted in higher fish growth and final biomass, lower FCR, and higher protein utilization efficiency than those of other treatments.  Furthermore, supplementation of organic Se also resulted in lower lipid and higher Se concentrations in the fish body as well as higher blood protein level compared to those of the control. In conclusion, the result of this study suggested that dietary supplementation of organic Se up to 6 mg/kg could enhance the growth and protein utilization in African catfish fed with both low and high protein diet. \u0000  \u0000Keywords: African catfish, growth, dietary protein, protein utilization, organic selenium. \u0000  \u0000ABSTRAK \u0000  \u0000Penelitian ini bertujuan mengevaluasi pengaruh suplementasi selenium organik pada pakan dengan kadar protein yang berbeda terhadap kinerja pertumbuhan dan pemanfaatan protein pakan ikan lele Clarias gariepenus. Penelitian didesain menggunakan rancangan acak lengkap faktorial 2×3 dengan dua tingkat protein pakan (27% dan 32%) dan tiga tingkat suplementasi selenium (Se) pakan (0 mg/kg, 3 mg/kg, dan 6 mg/kg diet) sebanyak tiga ulangan. Ikan lele yang digunakan memiliki bobot awal rata-rata dan panjang tubuh 27 ± 0.14 g dan 15.0 ± 0.5 cm, dipelihara dalam 18 unit akuarium (141 L) dengan kepadatan 142 ekor/m3 selama 40 hari pemeliharaan. Peningkatan suplementasi Se organik hingga 6 mg/kg pada ikan yang diberi pakan protein tinggi menghasilkan kinerja pertumbuhan ikan dan biomassa akhir yang lebih tinggi, FCR yang lebih rendah, dan efisiensi pemanfaatan protein pakan yang lebih tinggi daripada perlakuan lain. Selain itu, suplementasi Se organik juga menghasilkan kadar lemak yang lebih rendah dan konsentrasi Se tubuh yang lebih tinggi serta kadar protein darah yang lebih tinggi. Kesimpulan dari penelitian ini yaitu suplementasi Se organik pada pakan hingga 6 mg/kg dapat meningkatkan kinerja pertumbuhan dan pemanfaatan protein pakan pada ikan lele yang diberi pakan dengan kadar protein rendah dan tinggi. \u0000  \u0000Kata kunci: ikan lele, pertumbuhan, protein pakan, pemanfaatan protein, selenium organik.","PeriodicalId":32090,"journal":{"name":"Jurnal Akuakultur Indonesia","volume":"119 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85373163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effectiveness of filters on catfish Clarias gariepinus fry performance in the aquaponic system","authors":"Y. Andriani, Zahidah Hasan, I. Zidni, I. Nurruhwati, I. Iskandar, Rahmadi Kusumoputra","doi":"10.19027/JAI.20.2.101-114","DOIUrl":"https://doi.org/10.19027/JAI.20.2.101-114","url":null,"abstract":"This study aimed to determine the effectiveness of filters on the growth performances of catfish fry (Clarias gariepinus) in the aquaponic system. The study was conducted in the Ciparanje Green House, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran, Jatinangor. A completely randomized design with four treatments and three replications was applied, namely treatment A: Water circulation using bioball filter medium, B: Water circulation using water spinach filter medium, C: Water circulation using bioball and water spinach filter media, and D: Water circulation using sponge filter medium (control). The container used for the maintenance was a fiber tank at 70 cm × 70 cm × 70 cm size filled with 257 L water and a stocking density of 15 fish/fiber. The parameters observed were survival rate, growth, feed conversion, and water quality. The results showed that the use of biological filter using water spinach produced the best growth performance of catfish. The best survival rate was also obtained by using water spinach filter (100%) with the absolute growth of 98.32 ± 15.6 g. The water quality an aquaponic system with water spinach filter supported the growth performance of catfish fry. \u0000  \u0000Keywords: absolute growth, aquaponic, Clarias gariepinus, filters. \u0000  \u0000ABSTRAK \u0000  \u0000Penelitian ini bertujuan untuk menguji efektivitas filter terhadap performa pertumbuhan benih ikan lele Clarias gariepinus dalam sistem akuaponik. Penelitian dilakukan di Laboratorium Rumah Kaca Ciparanje, Fakultas Perikanan dan Ilmu Kelautan, Universitas Padjadjaran, Jatinangor. Metode penelitian adalah rancangan acak lengkap dengan empat perlakuan dan tiga ulangan, yaitu perlakuan A: sirkulasi menggunakan media filter bioball, B: Sirkulasi menggunakan media filter bayam air, C: Sirkulasi menggunakan media filter bioball dan tanaman kangkung, dan    D : Sirkulasi menggunakan media spons (kontrol). Wadah yang digunakan untuk pemeliharaan bak fiber dengan ukuran 70 cm × 70 cm × 70 cm diisi dengan air sebanyak 257 L dengan padat tebar 15 ekor / bak. Parameter yang diamati adalah kelangsungan hidup, pertumbuhan ikan, konversi pakan dan kualitas air. Hasil penelitian menunjukkan bahwa penggunaan filter biologis menggunakan tanaman kangkung menghasilkan  performa pertumbuhan ikan lele yang terbaik. Tingkat kelangsungan hidup terbaik juga ditunjukkan oleh pelakuran dengan filter berupa tanaman kankung (100%) dan pertumbuhan mutlak 98,32 ± 15,6 g. Kualitas air sistem akuaponik dengan filter tanaman kangkung mendukung performa pertumbuhan benih ikan lele. ","PeriodicalId":32090,"journal":{"name":"Jurnal Akuakultur Indonesia","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76171544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of corn steep powder as a protein source for feed of Nile tilapia Oreochromis niloticus","authors":"D. Hermawan, M. Suprayudi, D. Jusadi, A. Alimuddin, J. Ekasari","doi":"10.19027/JAI.20.2.115-129","DOIUrl":"https://doi.org/10.19027/JAI.20.2.115-129","url":null,"abstract":"This study was aimed to evaluate the use of corn steep powder (CSP) as a plant protein source in Oreochromis niloticus diet. A commercial feed with 28% protein content and 368 kcal/g energy was used as reference diet, while the test feed consisting of various CSP content, namely 0%, 10%, 20%, and 30% and feed containing soybean meal (SBM) at the level of 20% and 30%. Tilapia were used in the trial with the initial body weight of 6.44 ± 0.29 g, and reared for thirty days in the aquarium at the density of fifteen and fed 3 times daily at a satiation level. All diets were supplied by 0.5% of Cr2O3 as an indicator for digestibility measurement. This study applied the completely randomized design experimental method containing six diet treatments and four replications. The result showed that CSP contains 40.27% protein, 26.10% lactic acid, and minerals. CSP is low in crude fiber and anti-nutritional factors. This study results that increasing the level of CSP significantly decreased feed acidity (P <0.05) compared to the control. The addition of CSP 20% increased feed digestibility including protein, lipid, energy, and dry matter digestibility. CSP 20% treatment increased final body weight, specific growth rate and reduced feed conversion ratio significantly (P<0.05) compare to other treatments. In conclusion, CSP can be used up to 20% to improve the growth performance of tilapia. \u0000  \u0000Keyword: corn steep powder, feed digestibility, growth performance, tilapia \u0000  \u0000ABSTRAK \u0000  \u0000Penelitian ini bertujuan mengevaluasi penggunaan corn steep powder (CSP) sebagai sumber protein nabati pada pakan ikan nila Oreochromis niloticus. Pakan komersial dengan kadar protein 28% dan energi 368 kkal/g digunakan sebagai pakan acuan, sementara pakan uji terdiri atas pakan dengan kandungan CSP sebanyak 0% (CSP0), 10% (CSP10), 20% (CSP20) dan 30% (CSP30) serta pakan dengan kandungan tepung bungkil kedelai (SBM) pada level 20% (SBM20) dan 30% (SBM30) sebagai pembanding. Penambahan Cr2O3 0,5 % diberikan sebagai indikator untuk mengukur kecernaan. Ikan nila dengan bobot tubuh rata-rata 6.44 ± 0.29 dipelihara dalam akuarium (95×45×45 cm3) yang diisi air 100 L dengan kepadatan 15 ekor per akuarium dan diberi pakan tiga kali sehari secara at satiation selama 30 hari masa pemeliharaan. Penelitian ini menggunakan desain rancangan acak lengkap dengan enam perlakuan dan empat ulangan. Hasil penelitian menunjukkan bahwa CSP mengandung protein sebesar 40,27%, asam laktat 26,10%, beberapa mineral dan indeks asam amino esensial 0,90. CSP juga rendah serat kasar dan zat antinutrisi. Peningkatan dosis CSP menurunkan pH pakan secara signifikan (P<0.05) dibandingkan dengan kontrol. Penambahan CSP sampai level 20% meningkatkan nilai kecernaan total, kecernaan bahan, kecernaan protein, kecernaan lemak dan kecernaan energi. Di samping itu, perlakuan CSP 20% meningkatkan bobot akhir, laju pertumbuhan harian dan rasio konversi pakan yang signifikan (P<0,05) dibandingkan perlakuan lainnya. Hasil pen","PeriodicalId":32090,"journal":{"name":"Jurnal Akuakultur Indonesia","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90955103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Production Performance and Nitrogen and Phosphorus Mass Balance in Biofloc-based African Catfish Intensive Culture at Different Densities","authors":"Sumitro, T. Budiardi, Hilmi Fauzi, J. Ekasari","doi":"10.19027/jai.20.1.82-92","DOIUrl":"https://doi.org/10.19027/jai.20.1.82-92","url":null,"abstract":"This study aimed to evaluate the production performance and nitrogen and phosphorus mass balance of biofloc-based intensive African catfish Clarias gariepinus culture at different densities. African catfish with an average body weight of 2.64 ± 0.06 g was randomly distributed into 12 units of round tank with a working volume of 2 m3 of water and maintained for 8 weeks. A completely randomized experimental design with four treatments (in triplicates), i.e. a control treatment at a fish density of 500 fish m-3 with regular water exchange and without organic carbon source addition, and biofloc treatments (BFT) at three different densities, i.e. 500 fish m-3 (BFT500), 750 fish m-3 (BFT750), and 1000 fish m-3 (BFT1000). Biofloc systems were performed with a regular addition of tapioca flour (40% C). The production performance between biofloc system and the control was not significantly different, however water and nitrogen utilizations were significantly more efficient in biofloc system than those of the control. The highest fish specific growth rate was observed in BFT1000 and BFT500 (6.01% day-1 and 5.96% day-1, respectively) (P<0.05). Fish density significantly affected the fish growth performance and productivity in biofloc systems, but not nitrogen and phosphorus utilizations. In conclusion, higher fish density significantly increased the production and water utilization efficiency in biofloc systems, but has no effect on nitrogen and phosphorus utilization efficiency. Furthermore, increasing the fish density could significantly reduce the fish survival and require more efforts to control biofloc biomass in the culture system.","PeriodicalId":32090,"journal":{"name":"Jurnal Akuakultur Indonesia","volume":"92 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88112868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of nano-scale nutrients supplement on natural productivity of Thalassiosira sp. and growth performance of Pacific white shrimp, Litopenaeus vannamei, reared under intensive conditions using concrete tank culture system","authors":"Romi Novriadi, R. Fadhilah, Aldy Eka Wahyudi, Dea Ananda Prayogi, I. Ilham, S. Nanda","doi":"10.19027/JAI.20.1.47-55","DOIUrl":"https://doi.org/10.19027/JAI.20.1.47-55","url":null,"abstract":"ABSTRACT \u0000The aim of this study was to evaluate the use of unique mixture of nano-nutrient to extent the growth of diatom Thalassiosira sp. and the effect to the water quality, growth performance, and protein composition on the whole body of the Pacific white shrimp Litopenaeus vannamei. There are four treatments with four replicates per treatment with the use of commercial nano-nutrients (Aquaritin Aquaculture or AA) namely: (1) 0.70 mg/L; (2) 0.525 mg/L, (3) 0.35 mg/L, and (4) without any AA application, but included standard application of using urea and NPK fertilizers to enhance the growth of diatom. The use of AA was successful to trigger the growth of Thalassiosira sp. Group of shrimp treated with 0.70 mg/L had better growth rate. Results of feeding trial indicated that adding AA could also improve the biomass, final mean weight, survival, percentage weight gain, and better feed utilization in terms of FCR. The addition of AA to enhance the growth of Thalassiosira sp. also provides a beneficial impact to the protein composition in whole body of shrimp. Biologically, the protein composition in the whole body of shrimp treated with 0.7 mg/L was higher. The findings from this study showed that the addition of commercial nano-nutrient could enhance the growth of Thalassiosira sp. and led to better growth of shrimp cultured in concrete tank \u0000Key words: Growth, Litopenaeus vannamei, nano-nutrients, protein composition, Thalassiosira sp. \u0000ABSTRAK \u0000Tujuan penelitian yaitu mengevalusi penggunaan campuran unik nano-nutrien untuk meningkatkan pertumbuhan diatom Thalassiosira sp. dan pengaruhnya terhadap kualitas air, laju pertumbuhan, dan komposisi protein pada tubuh udang L. vannamei. Terdapat empat perlakuan dan empat ulangan per perlakuan dengan penggunaan nano-nutrisi komersial (Aquaritin Aquaculture atau AA) yaitu: (1) 0,70 mg/L; (2) 0,525 mg/L; (3) 0,35 mg/L, dan (4) tanpa pemberian AA, tetapi menggunakan penerapan standar pupuk urea dan NPK untuk pertumbuhan diatom. Penggunaan AA berhasil memicu pertumbuhan Thalassiosira sp. Kelompok udang yang diberi perlakuan 0,70 mg/L memiliki laju pertumbuhan yang lebih baik. Hasil uji coba pemberian pakan menunjukkan bahwa penambahan AA juga dapat meningkatkan biomassa, bobot rata-rata akhir, kelangsungan hidup, persentase pertambahan bobot dan pemanfaatan pakan yang lebih baik dalam hal FCR. Penambahan AA untuk meningkatkan pertumbuhan Thalassiosira sp. juga memberikan dampak yang menguntungkan bagi komposisi protein di seluruh tubuh udang. Secara biologis komposisi protein di tubuh udang dengan perlakuan 0,70 mg/L lebih tinggi. Hasil dari kajian ini menunjukkan bahwa penambahan nano-nutrien komersial dapat meningkatkan pertumbuhan Thalassiosira sp. dan mendorong pertumbuhan udang bada sistem budidaya di bak beton. \u0000Kata kunci: Komposisi protein, Litopenaeus vannamei, nano-nutrien, pertumbuhan, Thalassiosira sp.","PeriodicalId":32090,"journal":{"name":"Jurnal Akuakultur Indonesia","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83669872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Growth performance, immune response, and resistance of Nile tilapia fed paraprobiotic Bacillus sp. NP5 against Streptococcus agalactiae infection","authors":"Aldy Mulyadin, W. Widanarni, M. Yuhana, D. Wahjuningrum","doi":"10.19027/JAI.20.1.34-46","DOIUrl":"https://doi.org/10.19027/JAI.20.1.34-46","url":null,"abstract":"ABSTRACT \u0000  \u0000This study was aimed to evaluate the effectiveness of Bacillus sp. NP5 paraprobiotic administration through commercial feed on growth performance, immune response, and resistance of Nile tilapia against Streptococcus agalactiae infection. Bacillus sp. NP5 paraprobiotic was produced through heat-inactivation at 95°C for 1 h, then performed a viability test on tryptic soy agar (TSA) media and incubated for 24 hours. Paraprobiotics could be used whether the bacteria did not grow on the TSA media. This study used a completely randomized design, containing three treatments with five replications, i.e. 1% (v/w) probiotic addition, 1% (v/w) paraprobiotic addition, and no addition of probiotic or paraprobiotic (control). The experimental fish were reared for 30 days. On day 31 of rearing, fish were challenged with S. agalactiae (107 CFU/mL) through intraperitoneal injection route, while the negative control was injected with PBS. This study results significantly improved growth performances and immune responses (P<0.05), compared to control after 30 days of probiotic and paraprobiotic Bacillus sp. NP5 administration. After challenge test, increased immune responses in probiotic and paraprobiotic of Bacillus sp. NP5 treatment had higher survival rates (P<0.05) than positive control. The administration of Bacillus sp. NP5 probiotic and paraprobiotic through commercial feed were effective in increasing growth performance, immune response, and resistance of Nile tilapia against S. agalactiae infection. \u0000Keywords: Bacillus sp. NP5, Nile tilapia, paraprobiotic, Streptococcus agalactiae \u0000  \u0000ABSTRAK \u0000  \u0000Penelitian ini bertujuan mengevaluasi efektivitas pemberian paraprobiotik Bacillus sp. NP5 melalui pakan dalam meningkatkan kinerja pertumbuhan, respons imun, dan resistansi ikan nila terhadap infeksi Streptococcus agalactiae. Proses pembuatan bakteri paraprobiotik yaitu Bacillus sp. NP5 diinaktivasi panas pada suhu 95°C selama 1 jam, dilanjutkan dengan pengujian viabilitas dengan menyebarkannya pada media tryptic soy agar kemudian diinkubasi selama 24 jam. Jika bakteri tidak tumbuh, maka paraprobiotik dapat digunakan. Penelitian ini menggunakan rancangan acak lengkap dengan tiga perlakuan dan lima ulangan, yaitu penambahan probiotik 1% (v/w), penambahan paraprobiotik 1% (v/w), dan tanpa penambahan probiotik atau paraprobiotik (kontrol). Ikan perlakuan dipelihara selama 30 hari dan pada hari ke-31, ikan diuji tantang dengan S. agalactiae (107 CFU/mL) melalui injeksi intraperitoneal, sementara perlakuan kontrol negatif diinjeksi dengan PBS. Hasil penelitian setelah 30 hari pemberian probiotik dan paraprobiotik Bacillus sp. NP5 menunjukkan kinerja pertumbuhan dan respons imun yang meningkat signifikan (P<0.05) dibandingkan dengan kontrol. Pascauji tantang, peningkatan respons imun pada perlakuan probiotik dan paraprobiotik Bacillus sp. NP5 menunjukkan tingkat kelangsungan hidup yang lebih tinggi (P<0.05) dibandingkan kontrol positif. Pemberian probioti","PeriodicalId":32090,"journal":{"name":"Jurnal Akuakultur Indonesia","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85527103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}