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

2008 ◽  
Vol 7 (1) ◽  
pp. 71
Author(s):  
. Sutrisno

<p>This study was conducted to determine suitable water salinity and live food in the rearing of eel,  <em>Anguilla bicolor </em>fry.  Eel fry in weight of 0.15±0.008 g/tail were reared at controlled tank at density of 2 fish liter<sup>-1</sup> 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 <em>Tubifex</em> 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 (<em>Tubifex</em>, <em>Artemia</em>, or <em>Spirulina</em>) 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 <em>Artemia</em> (2.82% per day), followed respectively by <em>Tubifex </em>(1.85% per day) and <em>Spirulina </em>(0.15% per day).  Food coversion ratio in each treatment was 4.42, 2.77 and 134.33, respectively.</p> <p>Keywords:  eel, salinity, live food</p> <p> </p> <h5>ABSTRAK</h5> <p>Penelitian dilakukan dengan tujuan untuk mengetahui salinitas air dan jenis pakan alami yang tepat dalam pemeliharaan benih ikan sidat <em>(Anguilla bicolor)</em>. 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 <em>Tubifex</em>, <em>Artemia</em>, atau <em>Spirulina</em>) 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 <em>Artemia</em> memberikan laju pertumbuhan spesifik tertinggi, yaitu 2,82%/hari, <em>Tubifex </em>(1,85%/hari) dan <em>Spirulina </em>(0,15%/hari).  Konversi pakan tiap perlakuan berturut-turut adalah  4,42; 2,77 dan 134,33.</p> Kata kunci:  ikan sidat, salinitas, pakan alami

2021 ◽  
Vol 22 (2) ◽  
pp. 162-169
Author(s):  
Taufiq Ihsan ◽  
Tivany Edwin ◽  
Vira Elza

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


2019 ◽  
Vol 8 (2) ◽  
pp. 67
Author(s):  
Muhammad Arief ◽  
Abdul Manan

AbstrakSidat (Anguilla spp.) merupakan salah satu komoditas perikanan yang memiliki nilai ekonomis. Permintaan pasar akan ikan sidat sangat tinggi yaitu mencapai 500.000 ton per tahun. Salah satu upaya untuk memenuhi permintaan pasar dan meningkatkan produksi ikan sidat dapat dilakukan dengan pengembangan pakan alternatif atau penambahan feed additive yang dapat mempercepat pertumbuhan. Penelitian yang dilakukan bertujuan untuk mengetahui pengaruh penambahan enzim papain pada pakan komersial terhadap laju pertumbuhan, rasio konversi pakan dan kelulushidupan benih ikan sidat (Anguilla bicolor). Penelitian ini menggunakan metode eksperimental dengan Rancangan Acak Lengkap (RAL). Perlakuan yang diberikan adalah penambahan enzim papain pada pakan komersial dengan dosis 0%, 0,75%, 1,5%, 2,25% dan 3%. Hasil penelitian penambahan enzim papain pada pakan komersial memberikan perbedaan yang sangat nyata (P<0,01) terhadap laju pertumbuhan spesifik dan rasio konversi pakan, namun tidak berbeda nyata (p>0,05) terhadap kelulushidupan benih ikan sidat. Laju pertumbuhan spesifik tertinggi dan rasio konversi pakan terbaik dicapai pada perlakuan C (1,5%) yang masing-masing yaitu 0,85% gram/hari dan 2,27 sedangkan laju pertumbuhan spesifik terendah dicapai pada perlakuan A (0%) dan E (3%) yang masing-masing yaitu 0,37% gram/hari dan 0,39% gram/hari, rasio konversi pakan terburuk dicapai pada perlakuan A (0%) yaitu 5,14. Kualitas air pada media pemeliharaan selama penelitian adalah suhu 26-29oC, pH 7-8, oksigen terlarut 4-6 mg/l dan amonia 0-0,5 mg/l. AbstractEel fish (Anguilla spp.) a commodity that has significant economic value. Market demand for eel was very high, reaching 500.000 tonnes annually. One of effort to meet the market demand and increase the production of eels can be done with the development of alternative feed or feed additive additions that can accelerate growth. The purpose of this study to determine the effect of papain on commercial feed to growth rate, feed conversion ratio and survival rate in the eel (Anguilla bicolor) stadia elver. The method of this study was experimental with Completely Randomized Design as experimental design. The treatment was completed by adding dose of papain feeding as 0%, 0.75%, 1.5%, 2.25% and 3%. The result of this study showed that the increase of papain on commercial feed had effect on specific growth rate and feed conversion ratio (p<0.01),but had no effect on survival rate eel fish (p>0.05). The highest specific growth rate and the best feed conversion ratio in this study was treatment C (1.5%) with each the value 0.85% gram/day and 2.27 while the lowest specific growth rate in this study was treatment A (0%) and E (3%) with each the value 0.37% gram/day and 0.39% gram/day, the worst feed conversion ratio in this study was treatment A (0%) was 5.14. The maintenance of water quality in the media during the study was the temperature of 26-290C, pH 7-8, dissolved oxygen 4-6 mg/l and ammonia 0-0.05 mg/l.


2018 ◽  
Vol 1 (1) ◽  
pp. 50
Author(s):  
Ahmad Hadi Ripaki ◽  
Farikhah Farikhah ◽  
Andi Rahmad Rahim

Tilapia (Oreochromis niloticus) is a type of fish that has high economic value.Cultivation is determined by two factors: fish disease and growth. Among the results ofimmunostimulant studies added in the diet can increase the nonspecific immune response as wellas increase the growth of fish, immunostimulant ingredients are one of ginger emprit (Zingiberofficinale var Amarum). This study aims to analyze the effect of the addition of ginger flouremprit to growth rate, survival rate and feed conversion ratio of tilapia fish. The research methodused was Completely Randomized Design (CRD) consisting of 4 with 3 replications, namely:treatment A = 5, B = 7.5, C = 10 g/kg of feed and control (no addition of ginger). The mainparameters observed were specific growth rate, absolute weight, survival rate and feedconversion ratio. The supporting parameters are water quality consisting of temperature, pH andDO. Analysis of the data using ANOVA if influenced by further Tukey test (p <0,05). Theresults showed that the best growth in this study was in treatment with a dose of 7.5 g/kg of feedwith an absolute weight of 5.40 ± 0.34 g, a specific growth rate of 2.41 ± 0.08%/day, survivalrate that is equal to 90 ± 0,0%, and feed conversion ratio of 3.6 ± 0.15 g.


2020 ◽  
Vol 19 (1) ◽  
pp. 13-20
Author(s):  
Lies Setijaningsih ◽  
Imam Taufik ◽  
Deni Radona ◽  
Mulyasari Mulyasari

Water salinity is a crucial factor in Kissing Gourami (Helostoma temminckii) culture. Therefore, information regarding suitable and optimum medium for the ecophysiological requirement of fish is needed. Salinity is one physiological factor that affects both the survival and growth rate of fish as it is related to the osmoregulation process. The purpose of this study was to analyze the effect of different water salinity on, growth, survival rate, osmotic activity and blood picture of Kissing Gourami seed nursery. Fish was cultured in various salinity levels: 0 ppt (A), 1 ppt (B), 3 ppt (C), and 5 ppt (D). Salinity level significantly affected the survival rate, absolute weight growth, absolute length growth, specific growth rate, and blood picture of Kissing Gourami seed nursery. It was found that the Kissing Gourami seeds had the optimum growth on the salinity of 3 ppt, that was further shown by 82,00% of survival rate, 2,42% ±2,81 g/day of specific growth rate obtained. The results showed a positive correlation of the biological value of fish with the content of osmotic gradient, blood glucose, hematocrit, hemoglobin, erythrocytes amount, and water quality parameters (dissolved oxygen, temperature, pH, and ammonia). 


Author(s):  
Maulana Ranantika Habibie ◽  
Ayi Yustiati ◽  
Kiki Haetami ◽  
Ibnu Bangkit Suryadi

The purpose of this research was to determine the appropriate combination of commercial feed and maggot to produce optimum growth, feed efficiency and food conversion ratio for catfish. This research used experimental method with Completely Randomized Design (CRD) consisting of four treatments and four replications. The study was conducted in the Ciparanje Land Fisheries Area, Faculty of Fisheries and Marine Sciences, Padjadjaran University. The research was carried out between January - July 2019. The treatments are combination of commercial feed and maggots consisting of A (control, 100% commercial feed), B (75% commercial feed + 25% maggot), C (50% commercial feed + 50% maggot) and D (25% commercial feed + 75% maggot). The parameters observed were survival rate, daily growth rate, length ratio, feed efficiency, food conversion ratio and water quality. The combination of commercial feed and maggots affected the daily growth rate, length ratio, feed efficiency and food conversion ratio of catfish. The survival rate of each treatment was 88.75, 92.50%. Treatment C showed the value of highest daily growth rate, length ratio, feed efficiency namely 1.86%, 1.40%, 65.09% respectively and the lowest feed conversion ratio 1.54%.


Author(s):  
Dio Patria Yustysi ◽  
Fajar Basuki ◽  
Titik Susilowati ◽  
Tristiana Yuniarti

ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh dari hibridisasi ikan nila Pandu F6 dengan nila Nilasa terhadap karakter reproduksinya dan performa benih yang dihasilkan. Penelitian ini dilakukan dengan metode eksperimental menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 3 kali ulangan. Perlakuan dalam penelitian ini: perlakuan A (Pandu F6 ♀><Pandu F6 ♂), B (Nilasa ♀><Nilasa ♂), C (Pandu F6 ♀>< Nilasa ♂), dan D (Nilasa ♀><Pandu F6 ♂). Data yang diamati meliputi fekunditas, daya tetas telur, diameter dan bobot telur, panjang dan bobot larva TL, panjang dan bobot larva lepas kuning telur, kelulushidupan, laju pertumbuhan spesifik, konversi pakan dan kualitas air. Hasil penelitian menunjukan nilai terbaik pada fekunditas sebesar 1191,67 ± 239,45 butir/200 g, daya tetas telur sebesar 80,93 ± 3,90%, kelulushidupan sebesar 81,55 ± 7,54%, laju pertumbuhan spesifik sebesar 7,26 ± 0,25, konversi pakan 0,54 ± 0,02 didapatkan pada perlakuan C, akan tetapi untuk diameter dan bobot telur, panjang dan bobot larva Kuning Telur, dan panjang dan bobot larva lepas kuning telur tidak berbeda nyata. Hasil tersebut menunjukan bahwa hibridisasi (perlakuan C) memberikan pengaruh yang nyata (P < 0,05) terhadap fekunditas, daya tetas telur, kelulushidupan, laju pertumbuhan spesifik, dan konversi pakan tetapi tidak berpengaruh terhadap diameter dan bobot telur, panjang dan bobot larva, dan panjang dan bobot larva lepas kuning telur. Kata kunci: Hibridisasi, Ikan Nila, Karakter Reproduksi, Performa Benih  ABSTRACT This research aims to know the influence of hybridization tilapia fish Pandu F6 with nila Nilasa against the character of the reproduction and seed performance. This research was conducted with the experimental method using Random Design complete (RAL) with 4 treatments and three replicates. The treatments in this study: the treatment A (Pandu F6 F6 ♀ >< Pandu ♂), B (Nilasa ♀>< Nilasa ♂), C (Pandu F6 ♀>< Nilasa ♂), and D (Nilasa ♀ >< Pandu F6 ♂). The observed data covering fecundity, hatching rate, egg size, yolk sack larva length and weight, length and weight of the egg yolk off larvae, survival rate, specific growth rate, feed conversion rate, and water quality. The results showed the best value on the fecundity of 1191.67±239.45 eggs/200 g, Hatching rate 80.93 ± 3.90%, Survival rate of 81.55 ± 7.54%, specific growth rate of 7.26 ± 0.25, conversion fodder 0.54 ± 0.02 obtained at the treatment C, but for the diameter and weight of egg, larval length and weight TL, and the length and weight of the yolk egg off larvae for each treatment do not differ markedly. The results showed that hybridization (treatment C) gives a real influence (P < 0.05) of fecundity,hatching rate, survival rate but not with the egg size, larva weight and length, and the length and weight of larvae off yolk. Water quality on the spawning, hatching eggs and larvae found on the maintenance of a decent range for tilapia fish farming Keywords: hybridization, tilapia fish, character of the reproduction, seed performance 


2013 ◽  
Vol 42 (1) ◽  
pp. 76-80
Author(s):  
CO Olaniyi ◽  
GO Babasanmi

The use of Silkworm (Anaphe infracta) pupae as a protein source was investigated for its ability to replace fishmeal in the diet of Clarias gariepinus, African cat fish. Five dried diets formulated at 40% crude protein were fed to fingerlings of an average initial weight of 14.33g at 0 (control diet), 25, 50, 75 and 100% inclusion levels of silk worm meal. The experiment was conducted for 84 days were measured. Mean weight gain (MWG), specific growth rate (SGR), feed conversion ratio (FCR). The five inclusion levels of silk worm pupae supported the growth of Clarias gariepinus fingerlings, the growth and feed utilization were favoured by high inclusion level of silk worm meal. Significant differences (p<0.05) were observed among the treatments, although there were no significant differences (p>0.05) in the growth parameters between 50% and 75% inclusion levels. The 100% silk worm pupae meal inclusion gave the best final mean weight gain of 10.29g specific growth rate of 0.93%, feed conversion ratio of 2.18 and protein efficiency ratio (PER) of 0.012. The carcass protein and lipid contents increased compared to the levels of both at the beginning of the experiment. Even though, there were no significant differences (p>0.05) among proximate composition of the fish groups fed 25, 50 and 75%. The results showed that diet consists of 100% silk worm meal could be used as a complete replacement for fish meal in the diet formulation for Clarias gariepinus fingerlings. DOI: http://dx.doi.org/10.3329/bjas.v42i1.15787 Bang. J. Anim. Sci. 2013. 42 (1): 76-80


2021 ◽  
Vol 7 (2) ◽  
pp. 1-6
Author(s):  
Numisye Iske Mose ◽  
Jetti Treslah Saselah

Tanaman wori merupakan salah satu tanaman kelompok fabaceace yang tumbuh melimpah di Sangihe dan sangat potensial digunakan sebagai salah satu sumber pakan ikan. Kadar protein daun wori adalah 25,53% sehingga berpotensi menjadi protein nabati bagi ikan. Kendala utama yang ditemui ketika memanfaatkan daun tanaman wori adalah kandungan karbohidrat yang tinggi yaitu 48,51% sehingga dapat mempengaruhi proses pencernaan ikan, penyerapan nutrisi yang berujung pada rendahnya pertumbuhan ikan. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh tepung daun wori femerntasi terhadap laju pertumbuhan spesifik dan sintasan hidup ikan nila. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL). Perlakuan yang dilakukan terdiri dari tiga perlakuan dan tiga kali ulangan yaitu kadar tepung daun wori tanpa fermentasi A (kontrol) 10%, kemudian B tepung daun wori fermentasi (10%), dan C tepung daun wori fermentasi (20%). Laju pertumbuhan spesifik dan efisiensi pakan diuji menggunakan ANOVA sedangkan sintasan hidup akan dianalisis secara deskriptif. Hasil penelitian ini menunjukan bahwa penambahan tepung wori fermenasi dalam pakan dapat meningkatkan nilai laju pertumbuhan spesfik ikan nila dan efisiensi pemanfaatan pakan dengan nilai tertinggi pada perlakuan C yaitu SGR 1,94%/hari. Sementara itu, untuk semua perlakuan nilai sintasan hidup sebesar 100%.   The wori plant is one of the plants of the fabaceace group that grows abundantly in Sangihe and has potential to be used as a source of fish feed. The protein content of wori leaves is 25.53%, so it has the potential to become vegetable protein for fish. The main obstacle encountered when utilizing wori plant leaves is the high carbohydrate content of 48.51% so that it can affect the digestion process of fish, nutrient absorption which lead to low fish growth. The purpose of this study was to determine the effect of wori femerntation leaf meal on the specific growth rate and survival of tilapia. The experimental design used was a completely randomized design (CRD). The treatments consisted of three treatments and three replications, namely the content of fermented wori leaf powder, A (control) 10%, then B fermented wori leaf powder (10%), and C fermented wori leaf powder (20%). Specific growth rate and feed efficiency were tested using ANOVA, while survival rate was analyzed descriptively. The results of this study indicate that the addition of fermented wori powder in the feed can increase the value of the specific growth rate of tilapia and feed utilization efficiency with the highest value in treatment C, namely SGR 1.94% / day. Meanwhile, for all treatments the survival rate was 100%.


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