Aquaponic Biofloc Technology by Swamp Bacteria Probiotic for Clarias Catfish Rearing

Conventional catfish culture in Ogan Ilir (OI) have not optimal production, it can be increased by biofloc and aquaponics with local swamp bacteria as a starter. The purpose of this study was to apply biofloc technology and a combination of aquaponic-biofloc to increase the productivity of catfish (Clarias sp.) rearing. The study used two ponds, a biofloc circular pond and a combined biofloc and aquaponic (biofloqua) for two months. The results of the specific growth rate of fish in the aquaponic biofloc system were higher than that of the biofloc system alone. The survival of the fish during two rearing months of the Biofloqua system was 100% while the Biofloc system was 92-96%. The water quality data that measured were temperature, 30.3–31.9oC, Dissolved oxygen 4.5–7.2 mg.l-1, pH 6-7, and ammonia concentration 0.27-0.71 mg.l-1 in the biofloc system and 29.5-31.3oC, 4.7-7.4 mg.l-1, pH 6-7, 0.20-0.53 mg.l-1 in biofloqua system, respectively. The floc volume formation rate in the biofloc system alone reached 1.1 ml.l-1 per day, which was above the floc formation rate for the biofloqua system 0.42 ml.l-1 per day, due to the use of nutrients for plant growth. The combination of biofloc and aquaponics showed more optimal growth performance and both were efficient in feed (Food Conversion Ratio / FCR <1.00). Although the results of the 5% level t test showed no difference in the performance of the aquaculture biota between the two systems, Biofloqua can be an alternative to increase fish farmer income by harvesting vegetables and fish together.

Download Full-text

Pemberian Enzim Lignosellulosa Dalam Pakan Buatan Terhadap Pertumbuhan Dan Tingkat Kelulushidupan Benih Ikan Gurami (Osphronemus gouramy Lac.) [The Granting Of An Enzyme Lignosellulosa In Feed Artificial On The Growth And The Survival Rate Seed Gourami (Osphronemus gouramy Lac.) ]

Jurnal Ilmiah Perikanan dan Kelautan ◽

10.20473/jipk.v5i2.11401 ◽

2019 ◽

Vol 5 (2) ◽

pp. 163

Author(s):

Muhammad Yusuf Akbar, Agustono, Rahayu Kusdarwat

Keyword(s):

Water Quality ◽

Growth Rate ◽

Survival Rate ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Quality Data ◽

Feed Conversion ◽

Water Quality Data ◽

The Difference ◽

Range Test

Abstract Gurami having economic values of. Have abundance, namely able in waters with its oxygen relatively low. Belong to the species of carnivorous herbs herbivora. Unprofitableness is eat feed derived from herbs with content nutrition relatively low compared to animals, so it impact on its growth slow, easly diseases, easly stress, hard eat and SR low. The purpose of this research isto know the addition of enzyme lignosellulase in artificialfeedincreased growth and increased survival rate seed gourami. Method research used is experimental with delightful random complete (RAL) with five treatment and four deuterenomy. The treatment used were : control (A), enzyme 550ml (B), enzyme 600ml (C), enzyme 650ml (D), and enzyme 750ml(E). The main parameters measured were growth rate, and survival rate. The supporting parameters observedwas water quality. Data analysis used analysis of variance (ANOVA) to know the effect of the treatments.To know the difference among treatments used Duncan’s Multiple Range Test (DMRT). The result showed that the provision of enzymes give a real power (p<0.01) against growth rate daily and growth long absolute gourami (Osphronemus gouramy) To survival rate and feed conversion ratio gourami give impact which is not dissimilar real. Growth best on treatment E (0.0214), then successive followed by treatment D (0.0174), C (0.015), B (0.0142) and A (0.0128). Conversion ratio feed on all treatment e 10,415, that is, e then successive followed by treatment d (12,915), c (14,3975), b (15,6375) and a (17,5325). Survival rate obtained 100%. Water quality media maintenance gourami is temperature 26ºC - 29ºC, pH 7 – 8, oxygen dissolved 3.5 – 5 mg/l and ammonia 0.004 – 0.005 mg/l.

Download Full-text

Quality of Nephrops as food for Atlantic cod (Gadus morhua L.) with possible implications for fisheries management

ICES Journal of Marine Science ◽

10.1016/j.icesjms.2004.06.017 ◽

2004 ◽

Vol 61 (6) ◽

pp. 983-991 ◽

Cited By ~ 5

Author(s):

Björn Björnsson ◽

Maria Álvaro Dongala Dombaxe

Keyword(s):

Growth Rate ◽

Gadus Morhua ◽

Specific Growth ◽

Condition Factor ◽

Atlantic Cod ◽

Gonadosomatic Index ◽

Conversion Ratio ◽

Food Conversion ◽

The Mean

Abstract Nephrops was found to be of low quality as food for cod. In a laboratory experiment the mean specific growth rate of 1 kg cod was 0.184 and 0.415% d−1 when fed to satiation on Nephrops and capelin, respectively. This large difference in growth rate resulted not only from less intake of Nephrops (1.19 kg cod−1) than capelin (1.55 kg cod−1) but also because more Nephrops (4.6 kg) than capelin (2.2 kg) were required to produce each kilogramme of cod. Higher food conversion ratio was consistent with lower fat content of Nephrops (1.3%) than capelin (9.2%) but the exoskeleton also reduced the digestion rate of Nephrops. In the groups where Nephrops and capelin of equal mean weight were offered simultaneously, 40% of the diet consisted of Nephrops during the first week and 10% during the final seven weeks of the experiment. At the end of the experiment, condition factor, liver index, and gonadosomatic index were significantly lower for cod fed on Nephrops (0.967, 5.7, 7.1, respectively) than for those fed on capelin (1.086, 15.8, 11.2, respectively). These results suggests that predation by cod on Nephrops might be reduced by regular release of capelin or other similar food in the distributional areas of Nephrops.

Download Full-text

Determination of Suitable Water Salinity and Live Food in The Rearing of Eel (Anguilla bicolor) Fry

Jurnal Akuakultur Indonesia ◽

10.19027/jai.7.71-77 ◽

2008 ◽

Vol 7 (1) ◽

pp. 71

Author(s):

. Sutrisno

Keyword(s):

Growth Rate ◽

Survival Rate ◽

Specific Growth Rate ◽

Specific Growth ◽

Conversion Ratio ◽

Live Food ◽

Water Salinity ◽

Food Conversion ◽

Food Conversion Ratio

This study was conducted to determine suitable water salinity and live food in the rearing of eel, Anguilla bicolor fry. Eel fry in weight of 0.15±0.008 g/tail were reared at controlled tank at density of 2 fish liter-1 for 42 days. Experiment was devided into two steps. In the first step of experiment, eel fry were reared at different water salinity, i.e., 0; 5; 10 and 15 ppt. Fish were fed on Tubifex at satiation. The best result from the first experiment was then used in the second step of study to examine proper live food for eel fry. Fish were fed on live food (Tubifex, Artemia, or Spirulina) at 10% body weight. Survival rate, specific growth rate and food conversion ratio were observed. The result of experiment showed that survival rate of eel fry reared in water salinity of 5 ppt (100%), 10 (96%) and 15 ppt (97%) was higher (p<0.05) compared to that of 0 ppt (58%). Specific growth rate was also higher (p<0.05) in fish reared in water salinity of 5 (2.33%), 10 (1.65%) and 15 ppt (1.57%) compared to that of 0 ppt (0.022%). Survival rate and specific growth rate of fish at treatment of 5, 10 and 15 ppt were insignificantly different (p>0.05). The best food conversion ratio was also being obtained at treatment of 5 ppt (3.36), followed repectively by 10 ppt (5.11), 15 ppt (5.70) and 0 ppt (21.11). No different survival rate of eel fry by feeding on different live food was obtained. Higher specific growth rate was achieved at feeding of Artemia (2.82% per day), followed respectively by Tubifex (1.85% per day) and Spirulina (0.15% per day). Food coversion ratio in each treatment was 4.42, 2.77 and 134.33, respectively. Keywords: eel, salinity, live food <h5>ABSTRAK</h5> Penelitian dilakukan dengan tujuan untuk mengetahui salinitas air dan jenis pakan alami yang tepat dalam pemeliharaan benih ikan sidat (Anguilla bicolor). Benih sidat dengan berat rata-rata 0,15±0,008 g/ekor dipelihara selama 42 hari pada wadah terkontrol dengan kepadatan 2 ekor/liter. Penelitian dibagi kedalam dua tahap. Pada tahap pertama benih sidat diperlihara pada media dengan salinitas 0; 5, 10 dan 15 ppt. Pakan alami berupa cacing sutera diberikan secara satiasi. Salinitas terbaik hasil penelitian tahap pertama digunakan pada penelitian tahap kedua untuk mengetahui jenis pakan alami (cacing sutera Tubifex, Artemia, atau Spirulina) yang cocok untuk benih sidat. Pakan diberikan sebanyak 10% bobot tubuh. Paramater yang diamati meliputi sintasan, laju pertumbuhan spesifik dan efisiensi pakan. Hasil penelitian menunjukkan bahwa sintasan benih ikan sidat yang dipelihara pada salinitas 5 (100%), 10 (96%) dan 15 ppt (97%) lebih tinggi (p<0,05) daripada yang dipelihara pada salinitas 0 ppt (58%). Laju pertumbuhan spesifik juga lebih tinggi (p<0,05) pada benih yang dipelihara pada salinitas 5 (2,33%), 10 (1,65%) dan 15 ppt (1,57%) dibandingkan dengan salinitas 0 ppt (0,022%). Sintasan dan laju pertumbuhan spesifik antara perlakuan 5, 10 dan 15 ppt tidak berbeda nyata (p>0,05). Konversi pakan terbaik juga diperoleh pada perlakuan 5 ppt (3,36), diikuti berturut-turut 10 ppt (5,11), 15 ppt (5,70) dan 0 ppt (21,11). Pemberian pakan alami yang berbeda tidak berpengaruh terhadap sintasan benih sidat, tetapi berpengaruh terhadap pertumbuhan. Pemberian Artemia memberikan laju pertumbuhan spesifik tertinggi, yaitu 2,82%/hari, Tubifex (1,85%/hari) dan Spirulina (0,15%/hari). Konversi pakan tiap perlakuan berturut-turut adalah 4,42; 2,77 dan 134,33. Kata kunci: ikan sidat, salinitas, pakan alami

Download Full-text

Efek Paparan Subletal Limbah Cair Industri Penyamakan Kulit terhadap Rasio Konversi Pakan dan Laju Pertumbuhan Ikan Nila (Oreochromis niloticus)

Jurnal Teknologi Lingkungan ◽

10.29122/jtl.v22i2.4091 ◽

2021 ◽

Vol 22 (2) ◽

pp. 162-169

Author(s):

Taufiq Ihsan ◽

Tivany Edwin ◽

Vira Elza

Keyword(s):

Growth Rate ◽

Specific Growth Rate ◽

Control Experiment ◽

Specific Growth ◽

Conversion Ratio ◽

Tannery Wastewater ◽

Food Conversion ◽

Food Conversion Ratio ◽

Significant Difference ◽

West Sumatra

ABSTRACT Wastewater from the tanning industry of UPTD XX has entered the waters of Batang Anai River, West Sumatra. This wastewater quality exceeds the established quality standards and can be harmful to tilapia as a river biota. This study aimed to analyze the effect of sublethal tannery wastewater on food conversion ratio (FCR) and the specific growth rate (SGR) of tilapia. This study was conducted in three conditions: zero wastewater exposure (control), 1.85%, and 3.69% wastewater exposure. Each situation was set in triplo and observed for 28 days. We analyzed the correlation between duration exposure to the FCR and SGR by using regression and correlation analysis. Results showed an increase in the FCR value during observation in both wastewater exposure variations of 1.85% and 3.69%, with FCR values consecutively 1.19 and 1.75. At the same time, the control experiment showed a decreasing value of FCR. On the contrary, SGR values were decreased during observation in both wastewater exposure variations of 1.85% and 3.69%, consecutively 3.09% and 3.72%. While increasing SGR value was observed in the control experiment. A reliable correlation was obtained between the FCR and SGR ratio of tilapia to the exposure duration (r = 0.99). Furthermore, multivariate analysis showed a significant difference between the FCR and SGR to the variation and period of direction. It can be concluded that the longer the exposure time and the higher the concentration of exposure, decreasing the food uptake of tilapia and reducing the specific growth rate. Keywords: tilapia, ratio growth rate, tannery wastewater, feed conversion, West Sumatra ABSTRAK Limbah cair dari industri penyamakan UPTD XX, Sumatera Barat telah memasuki perairan Sungai Batang Anai, Sumatra Barat. Kualitas air limbah ini melebihi standar kualitas yang ditetapkan dan dapat berbahaya bagi nila sebagai salah satu biota sungai. Penelitian ini bertujuan untuk menganalisis pengaruh air limbah penyamakan kulit terhadap Rasio Konversi Pakan (Food Conversion Ratio/FCR) dan Laju Pertumbuhan Spesifik (Specific Growth Rate/SGR) pada ikan nila. Penelitian ini dilakukan dalam tiga variasi, yakni tanpa paparan air limbah (uji kontrol), paparan air limbah 1,85% dan 3,69%. Setiap variasi dilakukan secara triplo dan diamati selama 28 hari. Korelasi antara lama paparan dengan rasio FCR serta SGR, dianalisis dengan menggunakan regresi dan analisis korelasi. Selanjutnya analisis multivariat menggunakan ANOVA two-way untuk melihat perbedaan signifikan FCR dan SGR terhadap variasi dan durasi paparan. Hasil penelitian menunjukkan peningkatan nilai FCR di kedua variasi paparan air limbah 1,85% dan 3,69% dengan nilai FCR berturut-turut 1,19 dan 1,75. FCR dalam uji kontrol menunjukkan penurunan nilai FCR. Sebaliknya, nilai SGR cenderung menurun selama pengamatan pada kedua variasi paparan air limbah 1,85% dan 3,69%, dengan nilai SGR berturut-turut 3,09% dan 3,72%, sementara peningkatan nilai SGR terjadi pada uji kontrol. korelasi yang sangat kuat diperoleh dari nilai FCR dan SGR terhadap durasi paparan (r = 0,99). Selanjutnya, uji signifikansi ANOVA menunjukkan perbedaan yang signifikan antara rasio FCR dan SGR dengan variasi dan durasi paparan air limbah. Dapat disimpulkan bahwa semakin lama waktu paparan dan semakin tinggi konsentrasi paparan air limbah, mengurangi serapan pakan ikan nila dan mengurangi tingkat pertumbuhan. Kata kunci: ikan nila, laju pertumbuhan, limbah cair penyamakan kulit, rasio konversi pakan, Sumatra Barat

Download Full-text

Pemberian Dolomit Pada Kultur Daphnia spp. Sistem Daily Feeding Pada Populasi Daphnia spp. Dan Kestabilan Kualitas Air

Jurnal Ilmiah Perikanan dan Kelautan ◽

10.20473/jipk.v1i1.11700 ◽

2019 ◽

Vol 1 (1) ◽

pp. 67

Author(s):

A. Shofy Mubarak, Diah Trie Ridyaning Tias, Laksmi Sulmartiwi

Keyword(s):

Water Quality ◽

Ammonia Concentration ◽

Quality Data ◽

Water Quality Data ◽

Daily Feeding ◽

Live Feed ◽

Water Ph ◽

Quality Stability ◽

Ph Buffer ◽

Culture Technology

Abstract Daphnia spp. was potential source of live feed to be developed for larvae of freshwater fish. One of maximize culture technology was daily feeding system with rice bran solution. This system able to increase Daphnia spp. population. The problem of daily feeding culture technology was water quality stability, such as high pH fluctuation and high ammonia concentration. Water pH stability and decrease of ammonia concentration could be increased by dolomite added which function as stabilize pH buffer. The aim of this research found out the dolomite dose and culture period that able to increase population and stabilize of water quality. Experimental design was Completely Random Design with 4 replicates those were A control (0 mg/l), B (50 mg/l), C (100 mg/l), D (150 mg/l), E (200 mg/l) and F (250 mg/l). Parameter that measured were Daphnia spp. population and water quality, such as temperature, pH, ammonia, dissolve oxygen and alkalinity. The data were examined using ANAVA(Analysis of Variance) to know treatment effect and be continued by Duncan Multiple Range with trust of degree 0,05. for water stability using descriptif methode. Result of analysis showed that high population for all treatment were held on 6th, 7th and 8th day with the highest Daphnia spp. population was held on 8th day by F treatment (250 mg/l) were 9900 Daphnia spp./l. Water quality data showed different between each treatment.

Download Full-text

KINERJA PRODUKSI IKAN BOTIA (Chromobotia macracanthus) PADAT TEBAR TINGGI DENGAN SISTEM RESIRKULASI

Jurnal Akuakultur Sungai dan Danau ◽

10.33087/akuakultur.v3i1.25 ◽

2018 ◽

Vol 3 (1) ◽

pp. 17

Author(s):

Muarofah Ghofur ◽

Eko Harianto

Keyword(s):

Water Quality ◽

Growth Rate ◽

Specific Growth Rate ◽

Specific Growth ◽

Quality Data ◽

Fish Scale ◽

Feed Conversion ◽

Water Quality Data ◽

Ph Range

ABSTRACTCultivation technology and systems development especially on the breedstock phase with a focus of study is the density of the initial activities in determining the degree of success of the cultivation. This research aims to determine the performance of fish production botia (c. Macracanthus Bleeker) with dense stocking 2 e/L, 3 L, and e/e/4 L on recirculation systems as a basis for increased productivity of biomass. Long-term goals to be achieved the creation of a technologypackage pendederan botia fish skalla bulk production to support the fish are botia Jambi. Maintenance carried out for 3 months with a target size of botia fish scale market. Cultivation of technical indicators that measure in among others,the degree of viability (DKH), specific growth rate (LPS), feed conversion (KP), keefesien the diversity of weights (KK) and water quality. The results showed that the degree of viability (DKH) best of 91.67% (treatment A), specific growth rate (LPS) of 9.75 (treatment B),the value of the feed conversion (KP) in A treatment of 1.3 and koefesien diversity of weights (KK) highest of 112.67 treatment b. While for water quality data are all in the normal range, the temperature is 28oC, d.o. 5.5 – 7.5 mg/L, CO2 0.5423 – 0.7657 mg NH3/L, 0.0011 – 0.0019 mg/L, and a pH range from 6.68 – 7.89.Keyword: Fish Are Botia, Dense Stocking, Production, Recirculation ABSTRAK Pengembangan sistem dan teknologi budidaya terutama pada fase pendederan dengan fokus kajian kepadatan merupakan kegiatan awal dalam menentukan tingkat keberhasilan budidaya. Penelitian ini bertujuan untuk menetukan kinerja produksi ikan botia (C. Macracanthus Bleeker) dengan padat tebar 2 e/L, 3 e/L, dan 4 e/L pada sistem resirkulasi sebagai dasar peningkatan produktivitas biomassa. Tujuan jangka panjang yang ingin dicapai terciptanya paket teknologi pendederan ikan botia skalla massal untuk mendukung produksi ikan botia Jambi. Pemeliharaan dilakukan selama 3 bulan dengan target ukuran ikan botia skala pasar. Indikator teknis budidaya yang di ukur antara lain, derajat kelangsungan hidup (DKH), laju pertumbuhan spesifik (LPS), konversi pakan (KP), keefesien keragaman bobot (KK) dan kualitas air. Hasil penelitian menunjukkan bahwa derajat kelangsungan hidup (DKH) terbaik sebesar 91.67% (perlakuan A), laju pertumbuhan spesifik (LPS) sebesar 9,75 (perlakuan B), nilai konversi pakan (KP) terbaik pada perlakuan A sebesar 1,3 dan koefesien keragaman bobot (KK) tertinggi sebesar 112,67 pada perlakuan B. Sedangkan untuk data kualitas air semuanya dalam kisaran normal, suhu 28oC, DO 5,5 – 7,5 mg/L, CO2 0,5423 – 0,7657 mg/L, NH3 0,0011 – 0,0019 mg/L, dan pH berkisar 6,68 – 7,89. Keyword : Ikan Botia, Padat Tebar, Produksi, Resirkulasi

Download Full-text

CRECIMIENTO DE JUVENILES DE PARGO PALMERO LUTJANUS ANALIS (CUVIER) EN JAULAS FLOTANTES EN ISLAS DEL ROSARIO, CARIBE COLOMBIANO

Bulletin of Marine and Coastal Research ◽

10.25268/bimc.invemar.2002.31.0.292 ◽

2016 ◽

Vol 31 ◽

Cited By ~ 1

Author(s):

Julián Botero ◽

José Fernando Ospina

Keyword(s):

Water Quality ◽

Artificial Diet ◽

Specific Growth ◽

Stocking Density ◽

Culture Conditions ◽

Conversion Ratio ◽

Growth Potential ◽

Food Conversion ◽

Initial Weight ◽

Handling Stress

An experimental culture trial of juveniles of mutton snapper Lutjanus analis was conducted in order to evaluate the growth potential of the species and its adaptability to culture conditions. The juveniles (N = 127) with an initial weight ranging between 125 and 178 g were held at a stocking density of 15.9 fish/m3 in a floating cage and fed on a commercial artificial diet of 45% protein for a period of 1 to 8 days. Results showed an individual daily weight increase of 3.16 g/ day and a specific growth rate of t .06 %/ day. Although, the food conversion ratio obtained with the artificial diet was high and inadequate (TCA = 3.53). During the culture period all fish showed great tolerance to handling stress and to water quality conditions in the cage (O2 = 6.2-7.1 mg/L; Temp = 27.9-30.5 oC; Sal = 31-37). Overall survival was 97.6%. It is concluded that the mutton snapper has very important advantages for its culture like fast growth and tolerance to captivity conditions.

Download Full-text