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

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

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

E3S Web of Conferences ◽

10.1051/e3sconf/20184702007 ◽

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.

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Effects of Stocking Density and FeedingfFrequency on the Growth Performance, Digestive Enzyme Activity, and Tissues Histology of Hybrid Grouper (Epinephelus Fuscoguttatus♀×E. Lanceolatus♂)

10.21203/rs.3.rs-103762/v1 ◽

2020 ◽

Author(s):

Yan Chen ◽

Hai Huang ◽

Jun Ma ◽

Wenkan Liu ◽

Honggan Zhong ◽

...

Keyword(s):

Enzyme Activity ◽

Weight Gain ◽

Growth Performance ◽

Protein Content ◽

Specific Growth ◽

Digestive Enzyme ◽

Stocking Density ◽

Feed Consumption ◽

Digestive Enzyme Activity ◽

Feeding Frequency

Abstract A 6-week 5×2 factorial study was conducted to examine the effects of stocking density and feeding frequency on growth performance, body composition, digestive enzyme activity, and tissue histology of juvenile hybrid groupers raised in an indoor circulating water system. Triplicate groups of fish were reared in tanks following a factorial design consisting of ten treatments including 5 stocking densities (SD) [1.1 kg m−3(0.55 kg fish per tank, SD1.1), 2.2 kg m-3(1.1 kg fish per tank, SD2.2), 3.3 kg m−3(1.65 kg fish per tank, SD3.3), 4.4 kg m−3(2.2 kg fish per tank, SD4.4) and 5.5 kg m−3(2.75 kg fish per tank, SD 5.5)] and 2 feeding frequencies (FF) [3 meals a day (FF3) and 2 meals a day (FF2)]. The resulting 10 treatments were G1(SD1.1,FF3), G2(SD2.2,FF3), G3(SD3.3,FF3), G4(SD4.4,FF3), G5(SD5.5,FF3), G6(SD1.1,FF2), G7(SD2.2, FF2), G8(SD3.3, FF2), G9(SD4.4, FF2) andG10 (SD5.5, FF2). Feed consumption and temperature were recorded throughout the experiment. After 6 weeks, the results indicated that the weight gain rate (WGR) and specific growth rate (SGR) of fish in the G7 group were significantly higher than those of other groups (P< 0.05), followed by G1, with G3 being the lowest. Weight gain and specific growth rates were generally higher in fish fed twice a day than those fed three times a day. The variations in protein content between groups were consistent with the muscle protein content trends. Feeding frequency and stocking density had significant effects on serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), triglycerides (TGs), and cholesterol (CHO) (P < 0.05). Regarding immune function, grouper albumin (ALB), serum lysozyme (LZY), superoxide dismutase (SOD), and alkaline phosphatase (AKP) were significantly affected by stocking density and feeding frequency (P< 0.05). Pepsin and lipase activities in the stomach, intestine, and liver were also affected. The histological structure of the stomach, liver, and intestine in G1, G2, G7, and G8 fish was relatively normal, whereas those of the remaining groups exhibited varying degrees of damage. Overall, the optimum stocking densities were 1.343 kg/m3 (approximately 10 fish) and 2.004 kg/m3 (approximately 20-30 fish) when the fish were fed 3 and 2 times per day, respectively.

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EFFECT OF STOCKING DENSITY ON THE GROWTH PERFORMANCE OF RED TILAPIA IN ZEOLITE SUPPLEMENTED CLOSED SYSTEM

Jurnal Teknologi ◽

10.11113/jurnalteknologi.v83.17146 ◽

2021 ◽

Vol 83 (5) ◽

pp. 85-92

Author(s):

Ku Boon Hong ◽

Musfiroh Jani ◽

Rabiatul Adawiyah Meor Mohamad Zain ◽

Norashikin Mohd Fauzi

Keyword(s):

Growth Rate ◽

Specific Growth Rate ◽

Growth Performance ◽

Closed System ◽

Specific Growth ◽

Stocking Density ◽

World Population ◽

Red Tilapia ◽

Significant Difference ◽

Length Gain

Food demand is expected to surge due to the increase of world population. Malaysia is one of the top fish consumption countries in Asia, but the reduction of capture fishery has led to the increase for aquaculture for tilapia to overcome the demand. Thus, the objective of this study was to compare the growth performance of red tilapia at different stocking densities of zeolite supplemented closed system. Red tilapia fry was stocked into aquarium. Five treatments (containing zeolite and without zeolite) with two replicates were used. Food was given twice a day with 2% of total biomass of the fish. Weight and length of red tilapia were measured every two weeks. The zeolite treatments which recorded the highest final mean weight was T1 with the lowest stocking density (5 fish) while in T5 (highest stocking density), lowest mean weight was recorded. Specific growth rate and length gain in T1 was significantly higher than other treatments. On the other hand, there was no significant difference in growth parameters between the treatments with and without zeolite. The results revealed that red tilapia stocked in the T1 of the lowest stocking density (5 fish) had the highest growth performance than the fish in other treatments. Compared to other treatments, T1 recorded the highest final length and weight, weight and length gain, Specific Growth Rate % (SGR) among the treatments. The findings will be useful for the practitioners to understand the best practice for stocking density in zeolite supplemented closed system.

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Growth performance of Asian seabass Lates calcarifer (Bloch, 1790) stocked at varying densities in floating cages in Godavari Estuary, Andhra Pradesh, India

Indian Journal of Fisheries ◽

10.21077/ijf.2016.63.3.49095-23 ◽

2016 ◽

Vol 63 (3) ◽

Author(s):

Shubhadeep Ghosh ◽

Sekar Megarajan ◽

Ritesh Ranjan ◽

Biswajit Dash ◽

Phalguni Pattnaik ◽

...

Keyword(s):

Growth Rate ◽

Body Weight ◽

Growth Performance ◽

Andhra Pradesh ◽

Specific Growth ◽

Stocking Density ◽

Lates Calcarifer ◽

Survival Percentage ◽

Trash Fish ◽

Godavari Estuary

Present study was undertaken in Godavary Estuary, Andhra Pradesh for evaluation of the effect of three stocking densities on growth performance, survival and production of Lates calcarifer (Bloch, 1790) in floating cages and for optimisation of stocking density in cage farming. Seabass fingerlings having length and weight of 8.36±0.32 cm and 8.10±0.61 g respectively, were stocked in six cages (6 m dia; 3 m net depth) at three different stocking densities of 15, 30 and 45 nos. m-3 and their growth performance was monitored every fortnight for five months. All fishes were fed with chopped trash fish @ 8 - 12% of body weight. After 150 days of grow-out culture, seabass fingerlings reached 36.0±6.0 cm in length and 690.7±41.3 g in weight at density of 15 nos. m-3, 33.9±0.4 cm and 633.2±17.9 g at density of 30 m-3 and 30.2±0.4 cm and 465.0±21.2 g at density of 45 nos. m-3. Growth was allometric and did not differ with stocking density. Survival percentage was comparatively higher at lower (87.3%) and moderate (83.9%) stocking densities, while production was higher at moderate (1363.2 kg) and higher (1258.4 kg) stocking densities (p<0.5). Gain in weight as well as specific growth rate (SGR) were higher at lower and moderate stocking densities (p<0.5). The results of the study indicated that among the three stocking densities tested, 30 nos. m-3 is superior to 15 and 45 nos. m-3, with higher yield.

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Effect of differences in stocking density in round tarpaulin ponds on growth and survival of Osphronemus gourami

Indonesian Journal of Tropical Aquatic ◽

10.22219/ijota.v3i1.5973 ◽

2020 ◽

Vol 3 (1) ◽

Author(s):

Yudhistyan Hanif Rahmawan ◽

Riza Rahman Hakim ◽

Ganjar Adhywirawan Sutarjo

Keyword(s):

Growth Rate ◽

Growth Performance ◽

Specific Growth ◽

Slow Growth ◽

Stocking Density ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Conversion ◽

Growth And Survival ◽

Efficiency And Productivity

One way to increase cultivation productivity is by increasing stocking. Gouramy is a freshwater commodity that has a fairly slow growth performance. This study aims to determine the growth performance of gouramy reared at different stocking densities. The 3 cm gourami are reared in a pond containing 35 liters of water. ponds P1 (30 heads), P2 (50 heads), P3 (100 heads), P4 (150 heads), P5 (200 heads) each was repeated 3 times. Growth rate (GR), specific growth rate (SGR), survival rate (SR), and feed conversion ratio (FCR) were measured and analyzed for variance (ANOVA) followed by LSD. The results showed that the fish reared in pond P1 showed the best GR, SGR, FCR, and SR (3.8 g, 3.99 %, 96 %, and 1.11 respectively). The lower the density, the better the growth performance but based on efficiency and productivity the best is at P2.

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

Indonesian Aquaculture Journal ◽

10.15578/iaj.16.2.2021.91-97 ◽

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).

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PRODUKTIVITAS PASCALARVA IKAN SEMAH Tor douronensis (Valenciennes, 1842) PADA LINGKUNGAN EX SITU DENGAN PADAT TEBAR BERBEDA

Jurnal Riset Akuakultur ◽

10.15578/jra.12.1.2017.41-48 ◽

2017 ◽

Vol 12 (1) ◽

pp. 41

Author(s):

Jojo Subagja ◽

Deni Radona

Keyword(s):

Survival Rate ◽

Specific Growth ◽

Stocking Density ◽

Ex Situ ◽

Human Consumption ◽

Research Station ◽

Sustainable Aquaculture ◽

Preliminary Information ◽

Randomized Design ◽

Completely Randomized Design

Ikan semah Tor douronensis (Valenciennes, 1842) merupakan ikan asli perairan Indonesia yang memiliki potensi untuk dibudidayakan sebagai ikan konsumsi maupun ikan hias. Tujuan penelitian ini adalah mengevaluasi produktivitas (pertumbuhan, sintasan, dan biomassa) pascalarva ikan semah berdasarkan padat tebar berbeda (10, 15, dan 20 ekor/L) sebagai kegiatan awal domestikasi. 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 panjang 1,02 ± 0,06 cm dan bobot 0,69 ± 0,08 mg; merupakan hasil pemijahan secara induksi hormon dari induk hasil tangkapan alam yang diadaptasi selama dua tahun di kolam percobaan. Pemeliharaan dilakukan dalam akuarium berukuran 40 cm x 30 cm x 30 cm dengan volume air 15 L. Selama 40 hari pemeliharaan pascalarva diberi pakan alami berupa Artemia secara at-satiation dengan frekuensi tiga kali sehari (pagi, siang, dan sore). Hasil penelitian menunjukkan bahwa performa pertumbuhan bobot, laju pertumbuhan harian, dan sintasan tertinggi (P<0,05) didapatkan pada perlakuan padat tebar 10 ekor/L dengan nilai berturut-turut 34,31 ± 5,29 mg; 9,80 ± 0,37 %/hari; dan 95,55 ± 1,68%. Hasil penelitian ini merupakan informasi awal produktivitas ikan semah dalam proses domestikasi dan budidaya yang berkelanjutan.Mahseer Tor douronensis is a native freshwater fish species of Indonesia that has the potential to be cultured for human consumption as well as for ornamental fish. This study aimed to determine the productivity (growth, survival rate and biomass) of mahseer post-larvae based on different stocking densities (10, 15, and 20 individual/L) for domestication. This study was conducted in Germplasm Research Station, Bogor and employing completely randomized design (CRD) with three treatments and three replications for each treatment. The post-larvae used in the experiment were sized 1.02 ± 0.06 cm in length and 0.69 ± 0.08 mg in weight produced from induced breeding spawning, of the broodstock natural catches was adapted for two years in pond concrete. The post-larvae were reared in aquaria (dimension 40 cm x 30 cm x 30 cm) with a volume of 15 liters water. During rearing period (40 days), post-larvae were fed with Artemia nauplii at-satiation with frequency of three times per day. The results showed significantly higher absolute weight, specific growth rate of weight, and the highest survival rate (P<0.05) on the treatment of stocking density 10 individual/L with value of 34.31 ± 5.29 mg, 9.80 ± 0.37 %, and 95.55 ± 1.68% respectively. This result is preliminary information on productivity of mahseer for domestication, and sustainable aquaculture.

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