scholarly journals Effect of Basin Color on The Performance of Blue Swimming Crab (Portunus pelagicus)

2021 ◽  
pp. 50-57
Author(s):  
Muthmainnah Muthmainnah ◽  
Muhammad Yusri Karim ◽  
Marlina Achmad
Keyword(s):  
Survival Rate ◽  
Analysis Of Variance ◽  
High Mortality ◽  
Feeding Rate ◽  
Stocking Density ◽  
Swimming Crab ◽  
Portunus Pelagicus ◽  
Crab Larvae ◽  
Randomized Design ◽  
Completely Randomized Design

Blue swimming crab (Portunus pelagicus) is a sea crab that is widely found in Indonesian waters. One of the determinants of the success of crab cultivation is the availability of quality seeds. Howewer, blue swimming crab hatchery is currently experiencing problems, namely unstable seed availiability due to high mortality and growth at the larvae stage. This research aims to evaluate the effect of various colors of rearing basins of feeding rate and survival rate of blue swimming crab larvae (P. pelagicus) in zoea stage. The larvae for the study was zoea-1 stage with a stocking density of 50 ind/L. The basins used in this study was a round plastic basin with a volume of 40 L filled with 30 L of media water. The feed used was rotifer and artemia nauplius. The method used was a completely randomized design consist of 4 treatments and 3 replications. The treatments that were the use black, green, blue, and red basins colors. The results of the analysis of variance showed that the color of the basins had a significant effect on the feeding rate (p < 0,05) and very significant on survival rate (p < 0,01) for small blue swimming crab larvae were produced in black basins 90.14 and 16.60%.

scholarly journals Survival and metamorphosis rate of swimming crab Portunus pelagicus larvae with the use of phytoecdysteroid in the artificial feed

2017 ◽  
Vol 16 (2) ◽  
pp. 261 ◽  
Author(s):  
Andi Nikhlani ◽  
Komsanah Sukarti
Keyword(s):  
Survival Rate ◽  
Analysis Of Variance ◽  
Swimming Crab ◽  
Larval Metamorphosis ◽  
Portunus Pelagicus ◽  
Crab Larvae ◽  
Swimming Crabs

<p class="NoParagraphStyle"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">The survival rate of blue swimming crabs and the larval metamorphosis processes are still low in hatcheries. The objective of this study was to evaluate the effects of different phytoecdysteroids doses on both the survival and the rate of Blue swimmer crab larvae metamorphosis. The study consisted of four different phytoecdysteroids treatments, namely: control (0 mg/100 g of feed), 1 mg/100 g of feed, 2 mg/100 g of feed, and 4 mg/100 g of feed. Each treatment was replicated three times. The survival rate of the larvae was analyzed through analysis of variance, while the rate of larval metamorphosis was descriptively analyzed. The results showed that the dose of phytoecdysteroid of 2 mg/100 g of artificial feed resulted in the highest survival and the fastest metamorphosis speed of crab larvae for zoea-2 and zoea-3, and the dose of 4 mg/100 g of artificial feed for stadia megalopa and crablet.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Keywords: phytoecdysteroids, survival rate, metamorphosis, blue swimming crab</p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong>ABSTRAK</strong><strong></strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">Kelangsungan hidup rajungan dalam pembenihan masih rendah, dan proses metamorfosis larva masih lambat. Tujuan penelitian ini adalah untuk mengevaluasi pengaruh pemberian fitoekdisteroid dosis berbeda terhadap kelangsungan hidup dan kecepatan metamorfosis larva rajungan. Penelitian ini terdiri atas empat perlakuan dosis fitoekdisteroid yang berbeda, yaitu: kontrol (0 mg/100 g pakan), 1 mg/100 g pakan, 2 mg/100 g pakan, dan 4 mg/100 g pakan dengan masing-masing perlakuan dilakukan tiga kali ulangan. Kelangsungan hidup larva dianalisis menggunakan analisis sidik ragam, sedangkan kecepatan metamorfosis larva dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa dosis fitoekdisteroid sebanyak 2 mg/100 g pakan buatan menghasilkan kelangsungan hidup tertinggi dan proses metamorfosis larva rajungan tercepat untuk stadia zoea-2 dan zoea-3, serta  dosis 4 mg/100 g pakan buatan untuk stadia megalopa dan crablet.</p><p class="NoParagraphStyle"> </p><p>Kata kunci: fitoekdisteroid, kelangsungan hidup, metamorfosis, rajungan</p>

scholarly journals PENGARUH SALINITAS YANG BERBEDA TERHADAP KELULUSHIDUPAN DAN PERTUMBUHAN RAJUNGAN (Portunus pelagicus) PADA STADIA CRAB MUDA

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Sri Rejeki
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Stocking Density ◽  
Swimming Crab ◽  
Critical Determinant ◽  
Portunus Pelagicus ◽  
Central Java ◽  
Weight Growth ◽  
Randomized Design ◽  
Average Size

<p align="center"><strong>ABSTRAK</strong></p><p><strong>                                                                                                                                                         </strong></p><p>                Rajungan (P<em>. pelagicus</em>) merupakan hasil perikanan yang sangat potensial dan menjadi salah satu komoditi ekspor unggulan. Faktor lain yang menjadi kunci kesuksesan dalam budidaya di tambak adalah pengelolaan budidaya selama pelaksanaan di tambak. Hasil pemantauan lingkungan budidaya tambak dapat dijadikan dasar dalam menentukan  tindakan yang akan dilaksanakan dalam pengelolaan budidaya tambak. Kualitas air merupakan faktor penentu keberhasilan budidaya di tambak karena komoditas yang dibudidayakan di tambak hidup dalam badan air. Salinitas berhubungan erat dengan osmoregulasi hewan air. Penelitian ini bertujuan untuk mengkaji pengaruh salinitas yang berbeda terhadap kelulushidupan dan pertumbuhan rajungan (P. <em>pelagicus</em>). Penelitian ini dilaksanakan pada bulan Mei 2017 – Juli 2017 di Desa Tambak Bulusan, Kecamatan Karang Tengah, Kabupaten Demak, Jawa Tengah. Hewan uji adalah crab muda rajungan yang berukuran 5 cm. Padat tebar yang digunakan adalah 10 ekor/m. Pakan yang diberikan adalah udang rebon yang diberikan secara <em>fix feeding rate</em> 5%.Penelitian ini menggunakan metode eksperimen dengan rancangan acak lengkap (RAL) dengan 4 perlakuan dan 3 ulangan. Perlakuan salinitas yang digunakan yaitu 15 ppt, 20 ppt, 25 ppt, dan 30 ppt. Pemeliharaan dilakukan selama 42 hari dan dilakukan pengukuran kualitas air setiap  hari. Perbedaan salinitas memberikan pengaruh nyata (P&lt;0,05) terhadap kelulushidupan, pertumbuhan dan RGR. Hasil penelitian menunjukkan bahwa nilai kelulushidupan rajungan (P. <em>pelagicus</em>) yaitu pada perlakuan D sebesar 83,33±5,77%. Pertumbuhan bobot mutlak terbaik yaitu pada perlakuan D sebesar 81,87±2,42 g. Laju pertumbuhan relatif rajungan (P. <em>pelagicus</em>) terbaik yaitu pada perlakuan D sebesar 9,11±0,70%/hari. Perlakuan terbaik yaitu pada perlakuan D dibandingkan dengan perlakuan A, B dan C.</p><p><strong>                </strong></p><p><strong>Kata kunci: </strong>Kelulushidupan, Pertumbuhan, Rajungan, Salinitas, Osmoregulasi</p><p> </p><p align="center"><strong><em>ABSTRACT</em></strong></p><p align="center"> </p><p><em>                    </em>Blue swimming crab (P. <em>pelagicus</em>) is a potential fishery comodity and has become the leading export. Another factor that becomes the key to success in the cultivation in the pond is the management of cultivation during the implementation in the pond. The results of environmental monitoring of pond farming can be used as a basis in determining the actions to be implemented in the management of pond farming. Water quality is a critical determinant of the success of the cultivation in the ponds because of the commodities cultivated in live ponds in water bodies. Salinity is closely related to the osmoregulation of aquatic animals, in the event of a sudden drop in salinity and within a considerable range. The objectives of this research was to find out the effects of different salinity levels the survival rate and growth of blue swimming crab. This reaserch was conducted in Bulusan village, Karang Tengah districts, Demak district, Central Java start from Mei until July 2017. Theof blue swimming crab with average size of 5 cm/ind with stocking density was 10 individuals/tank. The feed given was shrimp rebon. This research was conducted by experimental method using Completely Randomized Design with 4 treatments and 3 replications. There were salinity from treatments A with 15ppt, B with 20ppt, C with 25 ppt, and D with 30 ppt. The maintenance performed for 42 days and water quality monitored daily. The different salinity gave sicnificant effect of survival rate, growth and RGR. The results showed that the best absolute value survival rate of  Blue swimming crab (P. <em>pelagicus</em>) that is at treatment D equal to 83,33 ± 5,77%. The weight growth value was in treatment D of 81.87 ± 2.42 g. The relative growth rate of Blue swimming crab (P. <em>pelagicus</em>) is best at treatment D equal to 9,11 ± 0,70% / day. The best treatment was treatment D compared to treatments A, B and C.</p><p> </p><strong><em>Keyword: </em></strong><em>Survival Rate, Growth, Blue Swimming Crab, Salinity, Osmoregulation</em>

scholarly journals Survival and metamorphosis rate of swimming crab Portunus pelagicus larvae with the use of phytoecdysteroid in the artificial feed

2017 ◽  
Vol 16 (2) ◽  
pp. 272
Author(s):  
Andi Nikhlani ◽  
Komsanah Sukarti
Keyword(s):  
Survival Rate ◽  
Analysis Of Variance ◽  
Swimming Crab ◽  
Larval Metamorphosis ◽  
Portunus Pelagicus ◽  
Crab Larvae ◽  
Swimming Crabs

<p class="NoParagraphStyle"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">The survival rate of blue swimming crabs and the larval metamorphosis processes are still low in hatcheries. The objective of this study was to evaluate the effects of different phytoecdysteroids doses on both the survival and the rate of Blue swimmer crab larvae metamorphosis. The study consisted of four different phytoecdysteroids treatments, namely: control (0 mg/100 g of feed), 1 mg/100 g of feed, 2 mg/100 g of feed, and 4 mg/100 g of feed. Each treatment was replicated three times. The survival rate of the larvae was analyzed through analysis of variance, while the rate of larval metamorphosis was descriptively analyzed. The results showed that the dose of phytoecdysteroid of 2 mg/100 g of artificial feed resulted in the highest survival and the fastest metamorphosis speed of crab larvae for zoea-2 and zoea-3, and the dose of 4 mg/100 g of artificial feed for stadia megalopa and crablet.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Keywords: phytoecdysteroids, survival rate, metamorphosis, blue swimming crab</p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong>ABSTRAK</strong><strong></strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">Kelangsungan hidup rajungan dalam pembenihan masih rendah, dan proses metamorfosis larva masih lambat. Tujuan penelitian ini adalah untuk mengevaluasi pengaruh pemberian fitoekdisteroid dosis berbeda terhadap kelangsungan hidup dan kecepatan metamorfosis larva rajungan. Penelitian ini terdiri atas empat perlakuan dosis fitoekdisteroid yang berbeda, yaitu: kontrol (0 mg/100 g pakan), 1 mg/100 g pakan, 2 mg/100 g pakan, dan 4 mg/100 g pakan dengan masing-masing perlakuan dilakukan tiga kali ulangan. Kelangsungan hidup larva dianalisis menggunakan analisis sidik ragam, sedangkan kecepatan metamorfosis larva dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa dosis fitoekdisteroid sebanyak 2 mg/100 g pakan buatan menghasilkan kelangsungan hidup tertinggi dan proses metamorfosis larva rajungan tercepat untuk stadia zoea-2 dan zoea-3, serta  dosis 4 mg/100 g pakan buatan untuk stadia megalopa dan crablet.</p><p class="NoParagraphStyle"> </p><p>Kata kunci: fitoekdisteroid, kelangsungan hidup, metamorfosis, rajungan</p>

NATURAL FEEDING OF SLUDGE WORMS (Tubifex sp.) WITH DIFFERENT FEEDING RATE ON GROWTH AND SURVIVAL RATE OF CTENOPOMA (Ctenopoma acutirostre) FISH SEEDS

2019 ◽  
Vol 5 (2) ◽  
Author(s):  
Muhammad Atilah Setiawan ◽  
Muarif Muarif ◽  
Fia Sri Mumpuni
Keyword(s):  
Survival Rate ◽  
Feeding Rate ◽  
Specific Growth ◽  
Feeding Frequency ◽  
Initial Weight ◽  
Growth And Survival ◽  
Randomized Design ◽  
Absolute Length ◽  
Test Fish ◽  
Completely Randomized Design

The aim of this study was to determine the growth and survival rate of Ctenopoma fish seeds. This study used a completely randomized design with 3 treatments and 3 replications. The treatment in this study was a different feeding rate using natural feed of Tubifex sp  namely A (8%), B (10%), and C (12%) ). The test fish used was Ctenopoma fish seeds with an initial length of 2.40 ± 0.10 cm and an initial weight of 0.32 ± 0.05 g. Fish seeds are cultivated  for 28 days with feeding frequency twice a day. The results of research showed that the use of different feeding rate had an significantly different (P<0.05) on the specific growth  rate and absolute length growth with the best results in the treatment C. The survival rate was not significantly different between treatments (P>0.05). Key Words: Ctenopoma, feeding rate, growth, survival rate 

scholarly journals ANALISIS PEMBERIAN VITAMIN C PADA ROTIFER DAN ARTEMIA TERHADAP SINTASAN, RASIO RNA/DNA, KECEPATAN METAMORFOSIS DAN KETAHANAN STRES LARVA RAJUNGAN (Portunus Pelagicus) STADIA ZOEA

2020 ◽  
Vol 2 (2) ◽  
pp. 30-34
Author(s):  
Faidar Faidar ◽  
Sutia Budi ◽  
Erni Indrawati
Keyword(s):  
Vitamin C ◽  
Stress Resistance ◽  
Brine Shrimp ◽  
Optimum Dose ◽  
Ratio Analysis ◽  
Chemical Physics ◽  
Portunus Pelagicus ◽  
Crab Larvae ◽  
Randomized Design ◽  
Completely Randomized Design

Penelitian ini bertujuan untuk menganalisis kandungan vitamin C rotifer, artemia dan larva rajungan setelah diperkaya dengan vitamin C dan menganalisis pemberian vitamin C terhadap sintasan, rasio RNA/DNA, kecepatan metamorfosis dan ketahanan stres larva rajungan stadia zoea. Serta menentukan dosis optimum vitamin C yang menghasilkan sintasan, rasio RNA/DNA, ke-cepatan metamorfosis dan ketahanan stres larva rajungan stadia zoea yang terbaik. Penelitian ini dilaksanakan pada bulan Mei sampai Juni 2020 di unit pembenihan kepiting dan rajungan Balai Perikanan Budidaya Air Payau (BPBAP) Takalar. Analisis Rasio RNA/DNA dilakukan di Laboratorium Uji Fisika Kimia BPBAP Takalar. Rancangan penelitian menggunakan Rancangan Acak Lengkap (RAL). Hasil penelitian menunjukkan bahwa pemberian vitamin C pada rotifer dan artemia dapat meningkatkan kandungan rotifer, artemia dan larva rajungan. Pemberian vitamin C pada rotifer dan artemia terhadap larva rajungan stadia zoea dapat meningkatkan sintasan, kecepatan metamorfosis dan ketahanan stres larva rajungan dan Dosis vitamin C 250 ppm yang terbaik pada pemeliharaan larva rajungan stadia zoea. This study aimed to analyze the content of vitamin C rotifer, artemia and small crab larvae after enriched with vitamin C and to analyze the provision of vitamin C to survival, RNA / DNA ratio, metamorphosis rate and stress resistance of crab larvae in zoea stage. Also, it aimed to determine the optimum dose of vitamin C which produces the best survival rate, RNA/DNA ratio, metamorphosis speed and stress resistance of crab larvae in zoea stage. This research was conducted from May to June 2020 in the hatchery unit of the Brackish Water Cultivation Fishery Center (BPBAP) Takalar. RNA / DNA ratio analysis was carried out at the Laboratory of Chemical Physics Testing of BPBAP Takalar. The research design used a completely randomized design (CRD). The results showed that giving vitamin C to rotifers and brine shrimp increased the content of rotifers, brine shrimp and crab larvae. Giving vitamin C to rotifers and artemia to larvae of zoea stadia crabs can increase survival, metamorphosis speed and stress resistance of crab larvae and the best dose of vitamin C 250 ppm in the maintenance of zoea stadia crab larvae.

scholarly journals Effect of Stocking Density on Survival Rate and Growth of Tilapia (Oreochromis niloticus Linnaeus, 1758) in Round Container with Water Current Combined with Venturi Aeration System

2020 ◽  
pp. 52-61
Author(s):  
Ayi Yustiati ◽  
Shalsabilla Nariswari ◽  
Iis Rostini ◽  
Ibnu Bangkit Bioshina Suryadi
Keyword(s):  
Survival Rate ◽  
Feed Efficiency ◽  
Stocking Density ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Water Current ◽  
Feed Conversion ◽  
Randomized Design ◽  
Aeration System ◽  
Completely Randomized Design

The aim of this research is determine of the optimal stocking density for survival rate and growth of tilapia in round container with water current combined with venturi aeration system. Place of research in the Aquaculture Laboratory, Building 4 Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran. The research method used is experimentally with using the Completely Randomized Design (CRD) method which consists of three treatments, there are 15 fish, 22 fish, 30 fish, with five replications. Using water of 15 L per container. The fish used are 3-5 cm tilapia fingerlings. Fish were maintained for 40 days. The feed given is 5% from biomass which is adjusted every 10 days. The parameters observed were survival rate (SR) and observed everyday, daily grow rate (DGR), feed conversion ratio (FCR) and feed efficiency were observed every 10 days. The result was significantly different from the analysis of variance (ANOVA) with the F test at 95% confidence intervals and then using Duncan test to compare the rates between treatments. The results showed that the best treatment was stocking density of 15 fish / 15 L in round container with current combined with venturi aeration system with survival rate of 78.67 ±10.95%, daily grow rate of 3.68 ± 0.12%, feed conversion ratio of 1.19 ± 0.13 and feed efficiency of 85.01 ± 8.97%.

scholarly journals Growth and survival rate of white shrimp (Litopenaeus vannamei) at different density

2017 ◽  
Vol 1 (2) ◽  
pp. 1 ◽  
Author(s):  
Abdul Rakhfid ◽  
Nur Baya ◽  
Muh Bakri ◽  
Fendi Fendi
Keyword(s):  
Survival Rate ◽  
Foreign Exchange ◽  
Confidence Level ◽  
Stocking Density ◽  
White Shrimp ◽  
Shrimp Culture ◽  
Growth And Survival ◽  
Randomized Design ◽  
Fishery Products ◽  
Completely Randomized Design

Vaname shrimp is one of the fishery products that are expected to produce foreign exchange for the country besides tiger shrimp.  One factor that can affect the growth and the production of vaname shrimp culture is dense stocking. The research was conducted in October-December 2016 at the Balai Benih Ikan Pantai (BBIP) Ghonebalano, aims to determine the effect of different stocking density on the growth and survival of vaname shrimp.  The research was using Completely Randomized Design with three treatment levels of density, i.e. treatment A = 10 individuals per container, treatment B = 15 individuals per container and treatment C = 20 individuals per container and three replications.  The results showed that the highest growth was obtained in treatment A which was 1,563 g/individuals, compared with treatment B (1.189 g/individuals) and C treatment (0.834 g/individuals).  Survival rate in treatment A is 80.00%, B treatment equal to 75,56% and treatment C equal to 70,00%.  Analysis of variance at 95% confidence level (α0.05) showed that the different density had a significant effect on growth, but had no significant effect on survival rate of the vaname shrimp larvae.

scholarly journals TOTAL HEMOCYTE COUNT AND HEMOLYMPH GLUCOSE CONCENRATION RESPONSE OF SPINY LOBSTER Panulirus homarus ON RATIO OF SHELTER

2017 ◽  
Vol 9 (1) ◽  
pp. 125
Author(s):  
Suhaiba Djai ◽  
Eddy Supriyono ◽  
Kukuh Nirmala ◽  
Kukuh Adiyana
Keyword(s):  
Survival Rate ◽  
Glucose Level ◽  
Physiological Response ◽  
Spiny Lobster ◽  
Stocking Density ◽  
Randomized Design ◽  
Total Hemocyte Count ◽  
Trash Fish ◽  
Hemocyte Count ◽  
Completely Randomized Design

<p><em>This research was conducted to assess the physiological response</em><em> of the</em><em> lobster <span style="text-decoration: underline;">Panulirus</span> <span style="text-decoration: underline;">homarus</span></em><em> </em><em>for the ratio of the shelters. </em><em>The method </em><em>used </em><em>completely randomized design with two replicates of each treatments with </em><em>shelter ratio (A) 1 : 5, (B) 3 : 5, (C) 4 : 5, (D) </em><em>5 : 5.</em><em> </em><em>Weight average for 18</em><em>4</em><em> lobsters with the stocking density of 23 lobsters for each treatment was 3</em><em>2</em><em>.64 ± 0.58 g. The experiment was conducted for 60 days. The lobster was fed with trash fish and acclimatized for 7 days before the</em><em> experiment</em><em>. </em><em>O</em><em>bservations on the physiologycal of every 10 days. </em><em>The </em><em>physiological</em><em> responses that observed </em><em>we</em><em>re</em><em> total hemocyte count (THC) and hemolymp</em><em>h</em><em> glucose</em><em> concentration</em><em>. </em><em>The result</em><em>s</em><em> showed that 4:5 was the best lobster shelter</em><em> ratio because it could </em><em>reduc</em><em>e</em><em> stress leve</em><em>ls</em><em>. </em><em>This is indicated by the stable values of </em><em>THC and hemolymph</em><em> </em><em>glucose level during the experiment </em><em>and supported by the growth of </em><em>57.28</em><em> </em><em>± </em><em>0.15 g and survival rate </em><em>of </em><em>91.31</em><em> </em><em>±</em><em> </em><em>2.60%.</em></p><p><em> </em></p><strong><em>Keywords:</em></strong><em> lobster, <span style="text-decoration: underline;">Panulirus</span> <span style="text-decoration: underline;">homarus</span>, ratio, shelter, THC, glucose</em>

scholarly journals EVALUASI PERTUMBUHAN BENIH PATIN (Pangasius hypophthalmus) YANG DIBERI PAKAN TAMBAHAN CACING SUTRA (Tubifex sp.)

2019 ◽  
Vol 6 (2) ◽  
pp. 77
Author(s):  
Dini Islama ◽  
Nurul Najmi
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Stocking Density ◽  
Fish Farming ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Culture Period ◽  
Feed Conversion ◽  
Randomized Design ◽  
Completely Randomized Design

This study aimed to evaluate of patin seed (Pangasius hypothalamus) that is given Tubifex sp. as additional feed. The experiment design was used  completely randomized design with four treatments and four replications. The treatments studied were 100 % pellet without the addition of Tubifex sp. (A), 95 % pellet with the addition of  Tubifex sp. 5 % (B), 90 % pellet with the addition of  Tubifex sp. 10 % (C) and 85 % pellet with the addition of  Tubifex sp. 15 % (D). Patin seed stocking density was 1 individu/l with the length of  3-4 cm and weight of  0,15-0,28 g. The culture period for one cycle of fish farming was 40 days. The ANOVA test showed commercial feeding with the addition of Tubifex sp. as additional feed gave the significant effect on the specific of growth rate, length and feed conversion ratio, but did not give the significant effect on survival rate of patin seed. The best dose to increase the growth of catfish seeds is 85% commercial feeding with the addition of Tubifex sp. 15%.

THE INFLUENCE OF STOCKING DENSITY AGAINST SURVIVAL RATE OF CATFISH (Clarias gariepinus) ON RECIRCULATION SYSTEM

2018 ◽  
Vol 4 (1) ◽  
pp. 11
Author(s):  
Anjas Adi Santoso ◽  
Muarif Muarif ◽  
Rosmawati Rosmawati
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Feed Efficiency ◽  
Average Length ◽  
Clarias Gariepinus ◽  
Stocking Density ◽  
Average Weight ◽  
Randomized Design ◽  
Recirculation System ◽  
Completely Randomized Design

One of the technologies to keep the water quality remains optimal ias a recirculation system. This research is aimed to determine the influence of denisity of catfish (Clarias gariepinus) on the recirculation system. Fish test used is catfish fry the age of 2 weeks with average weight 0.58 g and an average length of 2.7 cm as much as 10,000 fish. The experimental research used completely randomized design with 4 treatments and 3 replications. The treatments were A (20 fish/liter of water), B (30 fish/liter of water), C (40 fish/liter of water) and D (50 fish/liter of water). The survival rate, the feed efficiency, and water quality has been observed. The results of research showed that the survival rate and the feed efficiency were significantly different (P<0.05). The highest survival rate in this research was in the treatment A (20 fish/liter of water) that was 70.5%. The stocking density of catfish fry of 20 fish/liter of water can be used as basis for  the maintenance of catfish fry for reach the optimal survival rate. Key words: Catfish, survival rate, feed efficiency, recirculation

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