scholarly journals Effect of Rearing Density of ”Dumbo” Catfish (Clarias sp.) Fry on Production in the Controlled Nitrogen Culture System by Adding Wheat Powder

2007 ◽  
Vol 5 (2) ◽  
pp. 137 ◽  
Author(s):  
D. Shafruddin ◽  
. Yuniarti ◽  
Mia Setiawati
Keyword(s):  
Survival Rate ◽  
Feed Efficiency ◽  
Culture System ◽  
Culture Media ◽  
Inorganic Nitrogen ◽  
Fish Culture ◽  
High Level Waste ◽  
Market Demand ◽  
Average Growth ◽  
Rearing Density

<p>Demand of "dumbo" catfish is going to increase every year so that fry production should be increased in order  to support intensification culture system to meet market demand. Intensification in fish culture system may cause decreasing of dissolved oxygen content  and producing high level waste in the pond culture.  The effort to control inorganic nitrogen in intensive culture system can be performed by adding wheat powder into fish culture media.  This can support metabolic process of nitrogen by microbe and then produce protein in terms of bacteria biomass production, so that inorganic nitrogen in the water decreases.  Fish can utilize protein from  microbe efficiently. This study was conducted to examine effect of rearing density on "dumbo" catfish fry production in the culture system by controlling nitrogen content in water through addition of  wheat powder.  "Dumbo" catfish fry of 12-day old in average body weight of 0.046±0.006 gram and length of 1.7±0.9 cm were reared for 28 days in density of 400, 800 and 1200 fish/m<sup>2</sup>.  The results of study showed that weight and body length of fry reached 1.35 gram and 5.1 cm, respectively. Average of daily growth and production were 10.47 - 11.48% and 2.49 - 3.54 g per day, respectively. Increased of rearing density was insignificantly (<em>p</em>>0.05) affected growth rate and daily production.  Average growth in absolute length, survival rate and feed efficiency was about 2.7-3.2 cm, 36.20 - 53.88% and 147 - 172%, respectively.  Increased in rearing density was followed by decreased growth in length (<em>p</em><0.05), survival rate and feed efficiency.</p> <p>Keywords: "dumbo" catfish, <em>Clarias</em>, nitrogen, wheat, rearing density</p> <p> </p> <p>ABSTRAK</p> <p>Permintaan ikan lele dumbo terus meningkat setiap tahunnya sehingga diperlukan peningkatan produksi benih untuk mendukung intensifikasi usaha budidaya dalam rangka memenuhi permintaan pasar. Budidaya ikan secara intensif dapat menyebabkan menurunnya kadar oksigen air, sedangkan limbah yang dihasilkan tinggi. Upaya untuk mengendalikan nitrogen anorganik pada budidaya intensif dapat dilakukan melalui pemberian tepung terigu ke dalam media budidaya. Hal ini akan mendukung proses metabolisme nitrogen oleh mikroba dan akan menghasilkan protein dalam bentuk bakteri sehingga nitrogen anorganik dalam air menjadi berkurang. Protein mikroba yang dihasilkan dapat dimanfaatkan sebagai sumber protein yang efisien bagi ikan. Penelitian ini bertujuan untuk mengetahui pengaruh tingkat kepadatan terhadap produksi benih ikan lele dumbo pada sistem budidaya  dengan pengendalian nitrogen melalui penambahan tepung terigu. Benih ikan lele dumbo (<em>Clarias sp</em>.) umur 12 hari dengan bobot rata-rata 0,046±0,006 gram dan panjang 1,7±0.9 cm dipelihara selama 28 hari dengan kepadatan 400 ekor/m<sup>2</sup>, 800 ekor/m<sup>2</sup>, 1200 ekor/m<sup>2</sup>.  Hasil penelitian menunjukkan bahwa  benih ikan mengalami peningkatan ukuran berat (1,35 gram) dan panjang (5,1 cm). Nilai rata-rata pertumbuhan dan produksi harian masing-masing berkisar 10,47 - 11,48% dan 2,49 - 3,54 gr/hari. Peningkatan kepadatan tidak berpengaruh nyata (p>0,05) terhadap laju pertumbuhan dan produksi harian. Nilai rata-rata pertumbuhan panjang mutlak, kelangsungan hidup dan efisiensi pakan masing-masing berkisar 2,7-3,2 cm, 36,20 - 53,88% dan 147 - 172%. Peningkatan kepadatan diikuti dengan penurunan pertumbuhan panjang (p<0,05), kelangsungan hidup dan efisiensi pakan.</p> <p>Kata kunci: lele dumbo, <em>Clarias</em>, nitrogen, terigu, padat penebaran</p>

scholarly journals Effect of Different Rearing Density on Survival Rate and Growth of Giant Gouramy Osphronemus gouramy Lac. Fry at Size of 2 cm in Length

2007 ◽  
Vol 5 (2) ◽  
pp. 127
Author(s):  
I. Effendi ◽  
H.J. Bugri ◽  
. Widanarni
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Feed Efficiency ◽  
Economic Value ◽  
Feed Consumption ◽  
Market Demand ◽  
Feeding Frequency ◽  
Density Growth ◽  
Rearing Density

<p>Giant gouramy <em>Osphronemus gouramy</em> Lac is one of the fish for food that has high economic value, but its production is not  met with the market demand yet.  The effort is needed to be done in order to increase production of giant gouramy fry by an intensive hatchery system through high rearing density.  This study was performed to determine the effect of rearing density on survival rate and growth of fry.  Fry were reared in aquaria 60x29x33 cm filled with 35 liters water, and fed by <em>Tubifex</em> at satiation as much as  0.23-0.28 g/fry/day with feeding frequency  2 times a day.   Collected  data were survival rate, growth, feed consumption, feed efficiency, and water quality.  The result of study showed that survival rate and feed efficiency did not affected by rearing density, while growth and feed quantity were did.  Survival rate of fish was high; 90.14-99.52%.  Growth and feed consumption were decreased by increasing of  rearing density.</p> <p>Keywords:<em> </em>giant gouramy, <em>Osphronemus gouramy</em>, rearing density, growth</p> <p> </p> <p>ABSTRAK</p> <p>Ikan gurame, <em>Osphronemus gouramy</em> Lac. merupakan salah satu jenis ikan konsumsi yang memiliki nilai ekonomi yang cukup tinggi, tetapi hasil produksinya masih belum dapat memenuhi permintaan pasar. Upaya perlu dilakukan untuk meningkatkan produksi benih ikan gurame dengan pembenihan secara intensif melalui peningkatan padat penebaran. Penelitian ini dilakukan untuk mengetahui pengaruh padat penebaran terhadap kelangsungan hidup dan pertumbuhan benih ikan gurami. Benih ikan gurami dipelihara pada akuarium berukuran 60×29×33 cm<sup>3</sup> yang diisi air sebanyak 35 liter. Pakan berupa cacing sutera diberikan secara <em>at satiation</em> sebanyak 0,23 - 0,28 g/ekor/hari dengan frekuensi 2 kali/hari. Data yang diambil meliputi kelangsungan hidup, pertumbuhan, jumlah pakan yang dikonsumsi, efisiensi pakan dan kualitas air.  Hasil penelitian menunjukkan bahwa padat penebaran tidak mempengaruhi kelangsungan hidup dan efisiensi pakan, namun mempengaruhi pertumbuhan dan jumlah pakan yang dikonsumsi. Kelangsungan hidup selama pemeliharaan tergolong baik yaitu berkisar antara 90,14 - 99,52 %. Pertumbuhan dan jumlah pakan yang dikonsumsi ikan mengalami penurunan dengan meningkatnya padat penebaran.</p> <p>Kata kunci: gurami, <em>Osphronemus gouramy</em>, padat penebaran, pertumbuhan</p>

scholarly journals Short Communication: Evaluation of water quality and survival rate of red tilapia (Oreochromis niloticus) by using rice-fish culture system in quarry land of clay

2019 ◽  
Vol 20 (2) ◽  
pp. 589-594
Author(s):  
DEWI HIDAYATI ◽  
SUPIANA DIAN NURTJAHYANI ◽  
DWI OKTAFITRIA ◽  
NOVA MAULIDINA ASHURI ◽  
WAHYU KURNIALLAH
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Oreochromis Niloticus ◽  
Culture System ◽  
Short Communication ◽  
Fish Culture ◽  
Cultivation Medium ◽  
Red Tilapia ◽  
Communication Evaluation ◽  
Rice Fish

 Abstract. Hidayati D, Nurtjahyani SD, Oktafitria D, Ashuri NM, Kurniallah W. 2019. Short Communication: Evaluation of water quality and survival rate of red tilapia (Oreochromis niloticus) by using rice-fish culture system in quarry land of clay. Biodiversitas 20: 589-594. Quarry land is an area that has been used as mining land and has different characteristics from the former conditions before being mined so that the level of productivity of the soil decreases. This study aims to determine the suitability of clay quarry land in Tuban as a cultivation medium based on the analysis of the water quality and survival rate of red tilapia (Oreochromis niloticus) using rice-fish culture system. This study used a completely randomized experimental design method with triplicate of three ratio of cultivation medium using Ex-mining Land Soil (EmLS) from quarry land and Top Soil, i.e., 1:0 (A), 1:1 (B), and 0:1 (C/Control). Results of water quality measurements that include nitrite, nitrate, temperature, pH, and dissolved oxygen in descriptive unreal influence showed good condition. However, ammonia gives a significantly different effect mainly on the survival rate in 30 days nurture. In the end, the ANOVA test result of tilapia survival in treatment A was not significantly different (P>0.05) with treatment B and control. Based on these data, it can be seen that the EmLS from the quarry land of clay and TS can be used as a medium for cultivation of red tilapia (O. niloticus) with the recommended ratio of 1:1.

scholarly journals Effect of Rearing Density on Growth and Survival Rate of Balashark (Balantiocheilus melanopterus Blkr.) Fry at Recirculation Culture System

2008 ◽  
Vol 7 (2) ◽  
pp. 189
Author(s):  
I. Effendi ◽  
T.D. Ratih ◽  
T. Kadarini
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Survival Rate ◽  
Population Data ◽  
Fish Length ◽  
Market Demand ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Growth And Survival ◽  
Rearing Density

<p>Population of balashark (<em>Balantiocheilus melanopterus</em>, Blkr.) in nature has been decreased.  Therefore, domestication is needed to recover the stock and meet the market demand.  This study was conducted to determine rearing density producing the best survival and growth rate of fish.  Fry of balashark in length of 1.5 cm and body weight of 0.2 g were reared at density of 1, 2, 3 and 4 fish/l in recirculation aquarium 50×50×40 cm<sup>3</sup> system.  During experiment, fish were fed on <em>Tubifex</em> two times daily at 15% body weight or 0.168 g/fish.  Sampling of fish length and body weight was done every two weeks by 10% of population.   Data were analyzed using ANOVA and polynomial orthogonal test.  The results indicated that daily growth rate by weight (Y1) of fish decreased by increasing the rearing density (X).  Response of daily growth rate related to rearing density was negatively linear as Y1= 7.3563 - 0.253X.  Daily growth rate by length was also decreased by increasing the rearing density.  Their response was also negatively linear as Y2 = 0.7411 - 0.0358X. Food efficiency of was decreased by increasing the rearing density at 0.69, 0.61, 0.53 and 0.36%, respectively.  Survival rate of fish in each treatment was relatively similar, ranged from 95.0 to 98.5%.   Thus, best growth and survival rate were obtained by rearing fish at density of 1 fish/l.</p> <p>Keywords: balashark, <em>Balantiocheilus melanopterus</em>, density, growth, survival rate</p> <p> </p> <p>ABSTRAK</p> <p>Populasi benih ikan balashark (<em>Balantiocheilus melanopterus</em>, Blkr.) dialam menurun. Oleh karena itu perlu dilakukan upaya budidaya (domestikasi) untuk memulihkan stok dan memenuhi permintaan pasar. Penelitian ini bertujuan untuk mengetahui padat penebaran yang memberikan kelangsungan hidup dan pertumbuhan terbaik dalam sistem budidaya. Benih ikan balashark yang berukuran rata-rata 1,5 cm dan bobot 0,2 g ditebar dengan kepadatan 1, 2, 3 dan 4 ekor/liter dalam akuarium berukuran 50×50×40 cm<sup>3</sup> yang dirancang dalam suatu sistem resirkulasi. Selama pemeliharaan, benih ikan ini diberi cacing sutera dua kali sehari sebanyak 15% bobot tubuh atau 0,168 g per ekor. Pengukuran panjang dan bobot ikan dilakukan dua minggu sekali sebanyak 10% populasi. Data diuji dengan sidik ragam dan uji respon dengan polinomial orthogonal. Laju pertumbuhan berat harian (Y1) benih ikan balashark semakin menurun dengan bertambahnya padat penebaran (x), respon yang diberikan laju pertumbuhan berat harian terhadap padat tebar adalah linier negatif mengikuti persamaan Y1 = 7,3563 - 0,253x. Laju pertumbuhan panjang harian (Y2) benih ikan balashark juga semakin menurun dengan bertambahnya padat penebaran (x). Respon yang diberikan juga berupa linier negatif mengikuti persamaan Y2 = 0,7411 - 0,0358 x. Efisiensi pemberian pakan benih ikan balashark untuk padat penebaran 1-4 ekor/liter masing-masing pemberian adalah 0,69, 0,61, 0,53 dan 0,36%.  Tingkat kelangsungan hidup ikan relatif sama, berkisar antara 95,0 sampai 98,5%. Dengan demikian pertumbuhan dan kelangsungan hidup terbaik diperoleh pada padat tebar 1 ekor/l. <em></em></p> <p>Kata kunci: balashark, <em>Balantiocheilus melanopterus</em>, kepadatan, pertumbuhan, kelangsungan hidup</p>

scholarly journals Pengaruh C/N Rasio Berbeda untuk Pembentukan Bioflok pada Media Pemeliharaan terhadap Pertumbuhan dan Kelangsungan Hidup Benih Ikan Betok (Anabas testudineus)

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
M. Indra Wahyu Pratama ◽  
Dade Jubaedah ◽  
Mohamad Amin
Keyword(s):  
Survival Rate ◽  
Culture Media ◽  
Farming System ◽  
Anabas Testudineus ◽  
Growth And Survival ◽  
Climbing Perch ◽  
Randomized Design ◽  
Absolute Growth ◽  
Biofloc Technology ◽  
Absolute Length

Pratama et al, 2018. The Effect of Different C/N Ratio in for Biofloc of Formation Culture Media to the Growth and Survival Rate of Juvenile Climbing Perch (Anabas testudineus). JLSO 7(1): Climbing perch fish resources still have a problem due to this fish is still obtained only through capture and also the growth of climbing perch fish is slow. The solutions to increase the growth of the climbing perch fish is by applying biofloc technology for climbing perch fish culture. The purpose of this research was to know the effect of different C/N ratio on the growth of climbing perch fish (Anabas testudineus) juvenille with biofloc farming system. This research used a completely randomized design consist of four treatments and three replications. The treatments were without molase (P0), molase with C/N ratio 15 (P1), C/N 20 (P2) and C/N ratio 25 (P3). The results showed that C / N ratio 20 was the best treatment with absolute length of growth of 1.33 cm, absolute growth of weight 1.92 g, survival rate of 99.17% and feed efficiency 138.06%.

scholarly journals EFFECTS OF DIFFERENT pH SETTINGS ON GROWTH AND SURVIVAL OF COMMON CARP RAJADANU STRAIN

2018 ◽  
Vol 13 (2) ◽  
pp. 57 ◽  
Author(s):  
Vitas Atmadi Prakoso ◽  
Deni Radona
Keyword(s):  
Survival Rate ◽  
Common Carp ◽  
Culture Media ◽  
Stocking Density ◽  
Quality Parameters ◽  
Fish Length ◽  
Total Biomass ◽  
Growth And Survival ◽  
Fish Group ◽  
Ph Range

pH is one of the important water quality parameters in aquaculture. This study aimed to observe the growth performance and survival rate of common carp (Cyprinus carpio) Rajadanu strain reared in culture media with different pH levels. Fish (length: 3.60 ± 0.18 cm; weight: 1.68 ± 0.18 g) were stocked in nine aquariums (40 cm x 40 cm x 30 cm) for 10 days with a stocking density of 25 fish per aquarium. The treatments used were (A) pH 4-5, (B) pH 5-6, and (C) pH 6-7, with three replications. A commercial feed containing 28% protein was given daily and as much as 3% of the total biomass. The observed data were analyzed using variance analysis (ANOVA), followed by Duncan test. The results showed that the pH treatments did not affect the growth (length and weight) and survival rate of common carp Rajadanu strain (P>0.05). The best growth was achieved by the fish group reared in water with a pH range of 6-7 (length = 0.38 cm; weight = 0.17 g). The highest survival was attained by the fish group reared in water with a pH range of 5-6 (90.66%).

scholarly journals Hatchability, Growth Performance, Feed Efficiency, and Survival of Normal Feathered Local, Sasso-rir and Their F1-cross Chickens Under on-station Management Condition in Southern Ethiopia

2021 ◽  
Author(s):  
shewangizaw woltamo wolde ◽  
Tadele Mirkena ◽  
Aberra Melesse ◽  
Tadelle Dessie ◽  
Solomon Abegaz
Keyword(s):  
Body Weight ◽  
Survival Rate ◽  
Growth Performance ◽  
Feed Efficiency ◽  
Body Weight Gain ◽  
The Body ◽  
Southern Ethiopia ◽  
Feed Conversion ◽  
Egg Hatchability ◽  
F1 Cross

Abstract The Normal Feathered local chicken (LL), Sasso-RIR (SRSR) and their F1-cross (LSR) chickens were hatched to evaluated for egg hatchability, growth performance, feed efficiency and survival rate. After 14-days of brooding, 150 chicks of each genotype were randomly selected and further replicated in to five pens in a deep litter grower house consisting of 30 chicks each in a completely randomized design, and evaluated for a period of 16-weeks. Hatchability of fertile eggs was highest for LL (80.0 %), intermediate for LSR (68.6%) and lowest for SRSR (55.9%) chickens. The body weight (BW) of chicks at 2-weeks of age was 80.0, 76.3 and 61.5 g/bird for SRSR, LSR, and LL, respectively, the latter being the lowest (p<0.05). The respective BW at 8-weeks of age was 732, 587 and 451 g while at 18-weeks it was 1877, 1379 and 1070 g/bird and different from each other (p<0.05). During 3- to 8-weeks and 9- to 18-weeks growth periods, the LL chickens were inferior (p< 0.05) in feed intake (29.7 and 66.9 g/d/bird) whereas the SRSR chickens were superior (p< 0.05) in body weight gain (15.5 and 16.3 g/d/bird) and feed conversion ratio (2.67 and 5.35 g feed/ g gain), respectively. The mortality rate of chicken was not affected by genotypes. It can be concluded that the exotic blood of Sasso-RIR chicken had played a significant role in upgrading the growth rate and market weight of the local Normal Feathered chicken without adverse effect on hatchability, feed efficiency, and survival rate.

scholarly journals SURVIVAL RATE AND GROWTH OF JUVENILE SANDFISH (Holothuria scabra) IN VARIOUS REARING CONDITIONS

2017 ◽  
Vol 42 (1) ◽  
pp. 11-18
Author(s):  
Lisa Fajar Indriana ◽  
Muhammad Firdaus ◽  
. Supono ◽  
Hendra Munandar
Keyword(s):  
Survival Rate ◽  
Experimental Period ◽  
Pennisetum Purpureum ◽  
Market Demand ◽  
Holothuria Scabra ◽  
Rearing Conditions ◽  
Rearing Condition ◽  
Concrete Tank ◽  
Juvenile Density ◽  
Effect Of Light

Techniques for producing Holothuria scabra or sandfish sea cucumbers from aquaculture have been developed rapidly in the recent years to address the issues of decreasing sandfish population and increasing market demand. During the process of culturing H. scabra, the early stages of sandfish (i.e. larvae and juveniles) are the most critical of the development. Therefore, the Research and Development Division of the Marine Bio Industry – LIPI conducted a study to assess the growth performance of juvenile H. scabra  ultured in four different rearing conditions: (i) indoor concrete tank, (ii) indoor fiberglass tank, (iii) outdoor concrete tank with 1 mm hapa mesh, and (iv) outdoor concrete tank with 3 mm hapa mesh. Each of the rearing condition was set with an initial juvenile density of 15 juveniles per tank with a mean initial weight of 14 g, and fed ad libitum with a mixed feed consisting of Enhalus acoroides sea grass, Pennisetum purpureum napier and cow manure. The experiments were conducted for 20 weeks between April 26 - September 23, 2013. After the experimental period, juveniles reared in the outdoor concrete tank with 1 mm mesh show the best performance with respect to their survival rate (48.89 ± 3.85 %),mean final weight (22.07 ± 1.01 g), final biomass (162.05 ± 18.17 g) and specific growth rate (0.15 ± 0.03% per day). Further studies that combine rearing conditions with different bottom substrates as well as investigating the effect of light are needed to optimize the production of H. scabra from aquaculture.

Abatement of water nutrient load in a fish culture system using the aquatic trophic levels

2021 ◽  
Author(s):  
Hadi Poorbagher ◽  
Gholamreza Rafiee ◽  
Kamran Rezaei Tavabe ◽  
Fateh Moezzi
Keyword(s):  
Culture System ◽  
Trophic Levels ◽  
Fish Culture ◽  
Nutrient Load

A high-throughput cell culture system based on capillary and centrifugal actions for rapid antimicrobial susceptibility testing

Lab on a Chip ◽  
2020 ◽  
Vol 20 (24) ◽  
pp. 4552-4560
Author(s):  
Taegeun Lim ◽  
Eun-Geun Kim ◽  
Jungil Choi ◽  
Sunghoon Kwon
Keyword(s):  
Cell Culture ◽  
High Throughput ◽  
Antimicrobial Susceptibility ◽  
Culture System ◽  
Susceptibility Testing ◽  
Culture Media ◽  
Antimicrobial Susceptibility Testing ◽  
Testing System ◽  
Cell Culture System

A capillary and centrifuge-based rapid antimicrobial susceptibility testing system is developed to reduce the time of loading the sample and culture media while achieving a high-throughput testing capacity.

scholarly journals Use of Hydroponics to Maintain Quality of Recirculated Water in a Fish Culture System

1978 ◽  
Vol 107 (1) ◽  
pp. 92-99 ◽  
Author(s):  
William M. Lewis ◽  
John H. Yopp ◽  
Harold L. Schramm ◽  
Alan M. Brandenburg
Keyword(s):  
Culture System ◽  
Fish Culture
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