scholarly journals DETERMINING THE OPTIMUM TEMPERATURE FOR GROWTH, FEED EFFICIENCY AND SURVIVAL OF DOMESTICATED INDONESIAN MAHSEER, Tor soro LARVAE

2021 ◽  
Vol 16 (2) ◽  
pp. 91
Author(s):  
Jojo Subagja ◽  
Emir Ma’arif Imanudin ◽  
Kurniawan Kurniawan ◽  
Agoes Soeprijanto ◽  
Yunita Maemunah
Keyword(s):  
Growth Performance ◽  
Feed Efficiency ◽  
Specific Growth ◽  
Stocking Density ◽  
Standard Technique ◽  
Larval Rearing ◽  
Rearing Temperature ◽  
Commercial Feed ◽  
Different Temperatures ◽  
Rearing Condition

Temperature plays a pivotal role in the success of larvae production. Evaluation of the effects of different temperatures on growth, feed efficiency, and survival of domesticated Indonesian mahseer (Tor soro) larvae was carried out to determine an optimum rearing temperature. Five different temperature settings of 22°C, 24°C, 26°C, 28°C, and 30°C were used as the treatments arranged in triplicates, in indoor closed recirculating systems. The larvae were stocked in a rectangular glass tank with a stocking density of 150 larvae per tank and fed with a commercial feed (30% protein content) three times a day, about 10% per body weight over 61 days of observation. Measured parameters included the specific growth rate of total weight (SGRTW) and length (SGRTL), feed efficiency (FE), and survival rate (SR). The result showed that the treatments of different temperatures significantly affected the growth performance and feed efficiency of the larvae. The growth performance and feed efficiency of mahseer larva were much better at rearing temperature from 24°C to 28°C compared with those at 22°C and 30°C. There were no significant differences in SR in different temperatures tested. The SR was found to range from 86.44% to 100% in all treatments. Maintaining temperature ranging from 24°C to 28°C is the best rearing condition to achieve the optimum growth and feed efficiency of mahseer during the larval rearing period. The findings from this research could be set as a standard technique in larval rearing of Indonesian mahseer (Tor soro).

scholarly journals Cellulase hydrolyzed Indigofera zolingeriana leaf utilization as a feed ingredient for gourami fingerling

2021 ◽  
Vol 20 (2) ◽  
pp. 139-147
Author(s):  
Jefry Jefry ◽  
Mia Setiawati ◽  
Dedi Jusadi ◽  
Ichsan Achmad Fauzi
Keyword(s):  
Growth Performance ◽  
Feed Efficiency ◽  
Specific Growth ◽  
Second Step ◽  
Feed Ingredient ◽  
Protein Retention ◽  
Cellulase Enzyme ◽  
Randomized Design ◽  
Best Value ◽  
Completely Randomized Design

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).          Keywords: Cellulase, feed, hydrolyze, Indigofera zolingeriana, Osphronemus gouramy.   ABSTRAK   Penelitian 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).   Kata kunci: Hidrolisis, Indigofera zolingeriana, Osphronemus gouramy, pakan, selulase.

scholarly journals Survival and growth responses of snakehead fish Channa striata Bloch. juvenile in aerated and unaerated acid sulfate water

2017 ◽  
Vol 16 (1) ◽  
pp. 60
Author(s):  
, Purnamawati ◽  
Daniel Djokosetiyanto ◽  
Kukuh Nirmala ◽  
Enang Harris ◽  
Ridwan Affandi
Keyword(s):  
Growth Rate ◽  
Blood Glucose ◽  
Specific Growth Rate ◽  
Feed Efficiency ◽  
Specific Growth ◽  
Stocking Density ◽  
Water Volume ◽  
Growth Responses ◽  
Acid Sulfate ◽  
Channa Striata

<p><strong>ABSTRACT </strong></p><p> </p><p>The aim of the research was to analyze survival rate, specific growth rate, albumin, and feed efficiency and physiological (blood glucose, cortisol, dan haemoglobin) responses of snake head fish juvenil that reared at aerated and unaerated of tidal land water have been conducted in the laboratory. Experiments using completely randomized design with aerated and unaerated as a treatment, and each treatment has twelve replications. The snakehead fish juvenil wich length 2.4±0.2 cm and weight of 0.21±0.05 g reared in the aquarium that are size 30×25×35 cm (water volume 25 L) with a stocking density 2 juvenile/L, for 40 days. The fishes were fed with commercial feed with protein content about 40%, feeding two times a day (morning and afternoon) were at satiation. Replacement of water done every two days about 10% of the total water volume in the aquarium. The results showed that unaerated median significantly affected to biometric and physiological response of juvenile of snake head fish. The media un-aerated gives the best results shown by the higher value of survival (92%), specific growth rate (6.73%/ day), feed efficiency (78.22%), protein retention (41.91%), energy retention (30.81%) value of albumin (6.60 g/100 mL) and the haemoglobin (5.58 g/dL), and have the lowest value of cortisol (21.49 ng/L) and blood glucose (43.36 mg/100 mL).</p><p> </p><p>Keywords: acid sulfate water, growth rate, aeration, <em>Channa striata </em></p><p><em> </em></p><p> </p><p><strong>ABSTRAK </strong></p><p> </p><p>Penelitian ini bertujuan untuk menganalisis respons kelangsungan hidup, pertumbuhan spesifik, albumin, dan efisiensi pakan dan fisiologis (kortisol, glukosa darah, dan hemoglobin) juvenil ikan gabus yang dipelihara dengan dan tanpa aerasi pada media air rawa pasang surut. Penelitian menggunakan rancangan acak lengkap dengan aerasi dan tanpa aerasi sebagai perlakuan, dan masing-masing perlakuan memiliki 12 ulangan. Juvenil ikan gabus berukuran panjang 2,4±0,3 cm dan bobot 0,21±0,03 g dipelihara dalam akuarium 30×25×35 cm (volume 25 L) dengan padat tebar 2 ekor/L, selama 40 hari. Ikan diberi pakan berupa pakan komersial dengan kadar protein ±40%, pemberian pakan dua kali sehari (pagi dan sore) <em>at satiation</em>. Penggantian air dan penyiponan dilakukan dua hari sekali sebanyak 10% dari volume total dalam akuarium. Hasil penelitian menunjukkan bahwa perlakuan tanpa aerasi berpengaruh nyata terhadap respons biometrik dan fisiologis juvenil ikan gabus. Media tanpa aerasi memberikan hasil yang lebih baik ditunjukkan oleh kelangsungan hidup (92%), laju pertumbuhan spesifik (6,73%/ hari), efisiensi pakan (78,22%), retensi protein (41,91%), retensi energi (30,81%), kadar albumin (6,60 g/100 mL), dan hemoglobin (5,85 g/dL) yang lebih tinggi, sedangkan kadar kortisol (219 ng/L) dan glukosa darah (43,36 mg/100 mL) yang terendah.</p><p> </p><p>Kata kunci: media sulfat masam, pertumbuhan, aerasi, <em>Channa striata</em></p>

scholarly journals Growth performance of siamese gourami Trichopodus pectoralis seed with different stocking density to optimize production capacity: optimum temperature and salinity application

2018 ◽  
Vol 47 ◽  
pp. 02007
Author(s):  
Lies Setijaningsih ◽  
Dewi Puspaningsih ◽  
Imam Taufik
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth Rate ◽  
Growth Performance ◽  
Specific Growth ◽  
Production Capacity ◽  
Stocking Density ◽  
Optimum Temperature ◽  
Slow Growth Rate ◽  
Randomized Design

Fulfill needs of Siamese gourami still rely on the catch from nature, so the population in nature has become decreased. The increase of Siamese gourami fish production from culture is still constrained by the survival rate and slow growth rate in the seed phase. The purpose of this research was to determine the effect of Siamese gourami stocking density on the application of optimum temperature and salinity to growth performance for optimization of production capacity. Application of optimum temperature and salinity refers to the results of previous research, i.e., temperature of 28 °C and salinity 3 ‰. Siamese gourami seed with length of 2.96 ± 0.42 cm and weight of 5.27 ± 0.10 g used in the research. The experimental design used completely randomized design with four treatments, i.e. 1 fish L-1, 2 fish L-1, 3 fish L-1 and 4 fish L-1. The results showed that there were an effect of different stocking density on absolute growth weight and length, survival rate, specific growth rate and productivity. This is shown in the C treatment which growth was 4.95 ± 0.037 g, length 3.51 ± 0.01 cm, survival rate 93.47%, specific growth rate 1.22% and fish productivity of 625.76 g.

scholarly journals Penentuan bobot kayu apu Pistia stratiotes L. sebagai fitoremediator dalam pendederan ikan gurami Lac. ukuran 3 cm

2016 ◽  
Vol 15 (2) ◽  
pp. 180
Author(s):  
Kukuh Nirmala ◽  
Sulistia Wardani ◽  
Yuni Puji Hastuti ◽  
Wildan Nurusallam
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Feed Efficiency ◽  
Specific Growth ◽  
Weight Ratio ◽  
Stocking Density ◽  
Pistia Stratiotes ◽  
Water Lettuce ◽  
Quality Technology ◽  
Absolute Length

<p class="BasicParagraph"><strong>ABSTRACT</strong></p><p class="BasicParagraph"> </p><p class="BasicParagraph">The use of high stocking density in nursery causes a decrease of  water quality. Technology that can be used to solvethe low water quality in nursery of giant goramy was phytoremediation using <em>Pistia stratiotes</em> L. Purpose of this research was to determine the best weight ratio between <em>P. stratiotes</em> L. and 33 L water in nursery giant goramy size 3 cm. Giant goramy size 3 cm was maintained in an aquarium and was treated with different weight of <em>P. stratiotes</em> L. consisted of 45 g, 90 g, 135 g, and controls <em>P. stratiotes</em> L. 0 g. Cleaning and water change was done once a week. This research showed that the treatment of <em>P. startiotes</em> L. 45g/33 L water gave the best result in survival rate, absolute length of the growth, specific growth rate, feed efficiency and economically profitable.</p><p class="BasicParagraph"> </p><p class="BasicParagraph">Keywords: phytoremediation, water lettuce, <em>Osphronemus goramy</em> L., nursery</p><p class="BasicParagraph"><strong> </strong></p><p class="BasicParagraph"><strong> </strong></p><p class="BasicParagraph"><strong>ABSTRAK</strong></p><p class="BasicParagraph"><strong> </strong></p><p class="BasicParagraph">Penggunaan padat tebar tinggi pada pendederan ikan gurami mengakibatkan kualitas air menjadi buruk. Salah satu teknologi yang bisa digunakan untuk mengatasi kualitas air yang buruk pada pendederan ikan gurami adalah fitoremediasi menggunakan tanaman kayu apu. Tujuan penelitian ini adalah menentukan bobot kayu apu dengan volume air 33 L pada pendederan ikan gurami ukuran 3 cm. Ikan gurami ukuran 3 cm dipelihara di dalam akuarium dan diberi perlakuan bobot tanaman kayu apu berbeda yaitu 45 g, 90 g, dan 135 g, serta kontrol  (kayu apu 0 g). Penyiponan dan pergantian air dilakukan setiap satu minggu sekali. Hasil penelitian menunjukkan bahwa perlakuan kayu apu 45 g/33 L air menunjukkan hasil tingkat kelangsungan hidup, pertumbuhan panjang mutlak, laju pertumbuhan bobot harian, efisiensi pakan yang paling baik, serta lebih menguntungkan dibandingkan dengan perlakuan kontrol (kayu apu 0 g).</p><p class="BasicParagraph"> </p><p>Kata kunci: fitoremediasi, kayu apu, <em>Oshpronemus goramy</em> L., pendederan</p><p> </p>

scholarly journals PERTUMBUHAN IKAN UCENG (Nemacheilus fasciatus) DENGAN PADAT TEBAR BERBEDA DALAM LINGKUNGAN EX SITU

2017 ◽  
Vol 11 (4) ◽  
pp. 355
Author(s):  
Vitas Atmadi Prakoso ◽  
Muhamad Hunaina Fariduddin Ath-thar ◽  
Jojo Subagja ◽  
Anang Hari Kristanto
Keyword(s):  
Growth Performance ◽  
Genetic Improvement ◽  
Performance Test ◽  
Specific Growth ◽  
Stocking Density ◽  
Ex Situ ◽  
Economic Potential ◽  
Wild Stock ◽  
Central Java ◽  
Feed Pellet

Ikan uceng (Nemacheilus fasciatus) tergolong ke dalam famili Balitoridae dan genus Nemacheilus. Ikan uceng memiliki potensi ekonomi yang cukup tinggi. Namun, ketersediaan ikan ini masih mengandalkan penangkapan di alam. Untuk itu, perlu dilakukan penelitian untuk memperoleh informasi tentang kemampuan beradaptasi dan keragaan pertumbuhannya sebagai kegiatan awal domestikasi. Koleksi ikan uceng ditangkap dari Sungai Progo, Temanggung, Jawa Tengah dengan ukuran panjang total 4,39 ± 0,35 cm dan bobot 0,66 ± 0,13 g. Ikan diangkut menggunakan sistem transportasi tertutup selama 12 jam menuju Balai Penelitian dan Pengembangan Budidaya Air Tawar (BPPBAT), Bogor. Ikan dipelihara dan diadaptasikan di akuarium untuk mengetahui pengaruh transportasi terhadap sintasan pasca-transportasi. Selain itu, ikan uceng juga diadaptasikan dengan pemberian pakan alami berupa cacing sampai ikan tersebut dapat beradaptasi dengan pemberian pakan buatan (pellet). Uji keragaan pertumbuhan ikan uceng dilakukan dalam akuarium berukuran 40 cm x 25 cm x 25 cm dengan tiga perlakuan kepadatan, yaitu 1; 1,5; dan 2 ekor/L dengan tiga ulangan pada masing-masing perlakuan. Pakan yang digunakan dalam penelitian ini adalah pelet terapung dengan kandungan protein 30% sebanyak 5% dari biomassa dengan frekuensi dua kali sehari. Pengambilan data pertumbuhan dilakukan setiap 10 hari sekali selama 80 hari masa pemeliharaan. Kualitas air yang diamati meliputi: suhu air, pH, oksigen terlarut, nitrat, nitrit, CO2, dan TAN. Parameter yang diukur meliputi: pertambahan panjang, bobot, laju pertumbuhan spesifik (SGR), biomassa, dan sintasan (SR). Hasil penelitian menunjukkan bahwa padat tebar optimal untuk pertumbuhan ikan uceng adalah 1,5 ekor/L. Hasil penelitian ini juga menunjukkan bahwa ikan uceng sangat mungkin didomestikasi dan selanjutnya dilakukan perbaikan mutu genetiknya.Barred loach (Nemacheillus fasciatus) from Family of Balitoridae and Genus Nemacheilus has considerable economic potential for aquaculture. However, the availability of fish is still relying on the wild stock. Further studies are required to obtain information regarding growth performance and adaptation for domestication purposes. The fish were collected from Progo River, Temanggung, Central Java withtotal lengthof4.39 ± 0.35 cm and body weightof0.66 ± 0.13 g. The fishwere transported using closed system for 12 hours to Institute for Fisheries Aquaculture Research and Development, Bogor. The fishwere kept in aquariums and adapted to determine the effect of transportation on its survival. The fish werefedby using worms untilfish able to eatcommercial feed (pellet). Growth performance test was conductedon 40 cm x 25 cm x 25 cm aquariums with three different stocking densities(1, 1.5, and 2 ind/L) with 3 replicates for each treatment. The fish were fed with floating pellet containing 30% protein at an application ratio of5% of biomass per day and fed were given twice. Data were collected every 10 days during the 80 days rearing period. Water temperature, pH, dissolved oxygen, nitrate, nitrite,CO2, and TAN were observed during the experiment. The parameters measured dincluded body length andbody weight; and based upon these data their specific growth rate (SGR), biomass gain, and survival rate (SR) were calculated. The results showed that the optimal stocking density for the growth of barred loach was 1.5 ind/L. The results also suggested that Barred loach could be domesticated and further research is necessary for genetic improvement

scholarly journals The Influence of Feeding Combination Silkworm (Tubifex sp.) with Commercial Feed on Growth Performance of Catfish (Clarias sp.)

2021 ◽  
Vol 8 (2) ◽  
pp. 74
Author(s):  
Dewi Agustina ◽  
Retno Cahya Mukti
Keyword(s):  
Water Quality ◽  
Growth Performance ◽  
Feed Efficiency ◽  
Fish Farming ◽  
Growth Data ◽  
Absolute Weight ◽  
Length Growth ◽  
Weight Growth ◽  
Commercial Feed ◽  
Absolute Length

This study aims to determine the growth of catfish (Clarias sp.) Seeds by giving a combination of silkworms (Tubifex sp.) and commercial feed. This research was conducted in August - October 2020 in the fish farming group of PT ASABRI, West Ilir II Palembang, South Sumatera. The treatments used in this study were 100% silkworm (control) feeding and a combination of feed treatment consisting of 75% commercial feed and 25% silkworms. Parameters include absolute weight growth, absolute length growth, feed efficiency, survival, and water quality. The results obtained from this study indicate that combination feeding (P1) obtained better results than the control (P0) with absolute weight growth data of 8.38 g, absolute length 7.39 cm, feed efficiency 56.38% and survival 87.50%.Keywords: catfish, commercial feed, combination, growth silkworm

scholarly journals ƯƠNG GIỐNG CUA BIỂN (Scylla paramamosain) VỚI CÁC LOẠI THỨC ĂN VÀ MẬT ĐỘ KHÁC NHAU

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Le Quoc Viet ◽  
Tran Ngoc Hai
Keyword(s):  
Survival Rate ◽  
Growth Performance ◽  
Stocking Density ◽  
Scylla Paramamosain ◽  
Mud Crab ◽  
Commercial Feed ◽  
Set Up

This study aims to determine the appropriate feed type and stocking density to improve the survival rate and growth performance of mud crab crablet during the nursery stage. The study consisted of 2 experiments as follows: (1) Rearing crablets with different feed types (including commercial feed, artemia biomass and acetes biomass) and (2) rearing crablets at different stocking densities (including 100; 200; 300 and 400 inds/m2). All treatments were randomly set up in triplicate. The initial sizes of crablet were 3.24 ± 0.54 mm in length, 4.54 ± 0.79 mm in width and 0.018 ± 0.004 g in weight. The result showed that using acetes biomass gave the best results compared to other treatments. The survival rate was 58.8% and biomass was 118 inds/m2. The second experiment showed that rearing crablets at 100 inds/m2 reached the highest survival rate (90.7%) and biomass (91 inds/m2).

scholarly journals Effects of supplemented diets on the growth performance and nutrient contents of gulsha tengra, Mystus cavasius

2017 ◽  
Vol 45 (1) ◽  
pp. 61-71
Author(s):  
Kaniz Fatema ◽  
Md Farukul Islam ◽  
Nahid Sultana ◽  
Badhan Saha
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Growth Performance ◽  
Protein Content ◽  
Rice Bran ◽  
Proximate Composition ◽  
Specific Growth ◽  
Nutrient Contents ◽  
Commercial Feed

To evaluate the effects of two diets on the growth performance and nutrient contents of gulsha, Mystus cavasius was conducted. Growth performance of gulsha was found maximum in rice bran and spirulina feed (treatment T1) and the lowest was observed in commercial feed (treatment T2). Specific growth rate of gulsha was higher in treatment T1 than treatment T2. Treatment T1 had the best proximate composition (moisture 77.28%, ash 3.45%, lipid 4.31% and protein content 15.05%) and nutrient contents (calcium 115.6 mg/100g, phosphorous 166.7 mg/100g, potassium 207.23 mg/100g, magnesium 25.97 mg/100g, iron 1.85 mg/100g and manganese 0.23mg/100g). Therefore, it was found to be better option to produce healthy fish for human consumption.Bangladesh J. Zool. 45(1): 61-71, 2017

scholarly journals Pertumbuhan dan sintasan pascalarva ikan lalawak, Barbonymus balleroides (Valenciennes, 1842) di akuarium dengan kepadatan berbeda [The growth and survival rate of red tailed tinfoil, Barbonymus balleroides (Valenciennes, 1842) post-larvae in aquariums with different densities]

2017 ◽  
Vol 17 (1) ◽  
pp. 21
Author(s):  
Irin Iriana Kusmini ◽  
Fera Permata Putri ◽  
Deni Radona
Keyword(s):  
Survival Rate ◽  
Specific Growth ◽  
Stocking Density ◽  
Research Station ◽  
Growth And Survival ◽  
A Value ◽  
Randomized Design ◽  
Commercial Feed ◽  
Completely Randomized Design ◽  
Feed Protein

Tinfoil barb Barbonymus balleroides (Valenciennes, 1842) is one of the local freshwater fish that have the potential to be cultured as fish consumption as well as ornamental fish. This study aimed to determine of the growth and survival rate of red tailed tinfoil post-larvae based stocking density (3 individual L-1, 4 individua lL-1 and 5 individual L-1). This study was conducted in plasma nutfah research station, Bogor and experimentally used completely randomized design (CRD) with three treatments and three replications for each treatment. The post-larvae used in the experiment were sized 0.37 cm from induced breeding spawning. The post-larvae were reared in the aquarium (dimension= 60x30x30 cm) with a volume of 34 liters water. During reared (90 days) post-larvae were given commercial feed (protein content =40%) at-satiation with frequency of three times per day. The result showed the value of length, weight and the highest specific growth rate (P<0.05) in the treatment of stocking density 5 individual^1 with value of 1.8 cm, 0.24 g and 2.72%, while the highest survival rate of 3 individual-1 with a value of 86.76%.AbstrakIkan lalawak Barbonymus balleroides (Valenciennes, 1842) merupakan ikan lokal air tawar yang memiliki potensi untuk dibudidayakan sebagai ikan konsumsi maupun sebagai ikan hias. Tujuan penelitian ini untuk mengevaluasi pertumbuhan dan sintasan pascalarva ikan lalawak berdasarkan padat tebar (3 ekor L-1, 4 ekor L-1 dan 5 ekor L"1). Penelitian dilakukan di Instalasi Penelitian Plasma Nutfah Perikanan Air Tawar Cijeruk, Bogor dan dilaksanakan secara eksperimental menggunakan rancangan acak lengkap dengan tiga perlakuan dan tiga kali ulangan. Pascalarva yang digunakan berukuran 0,37 cm dan merupakan hasil pemijahan secara induksi hormon. Pemeliharaan dilakukan dalam akuarium berukuran 60x30x30 cm3 dengan volume air 34 L. Selama 90 hari pemeliharaan pascalarva diberi pakan komersial berbentuk remah yang mengandung protein 40 % secara at-satiasi dengan frekuensi tiga kali per hari (pagi, siang, dan sore). Hasil penelitian menunjukkan nilai panjang, bobot, dan laju pertumbuhan spesifik tertinggi (P<0,05) pada perlakuan padat tebar 5 ekor L-1 dengan nilai 1,8 cm, 0,24 g dan 2,72% sedangkan sintasan tertinggi pada perlakuan 3 ekor L-1 dengan nilai 86,76%. 

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