49 research outputs found
Aplikasi Pemuasaan dan Pakan Fermentasi Terhadap Pertumbuhan dan Rasio Konversi Pakan Ikan Nila (Oreochromis niloticus)
Get PDFShadila, T.A., & Jubaedah, D. (2024). Aplication of starvation and fermented feed on growth and feed conversion ratio of tilapia (Oreochromis niloticus). In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-12 Tahun 2024, Palembang 21 Oktober 2024. (pp. 135–142). Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).One of the methods that can increase the growth of culture tilapia is by applying a combination of the starvation method and feed fermentation. The results of previous studies showed a high increase in fish growth when fish are starvated and fed fermented feed compared to the growth of fish without starvated and fed non fermented feed. The purpose of this activity was to determine the growth and feed conversion ratio of tilapia (Oreochromis niloticus) that were starvated and fed fermented feed at Kelompok Pembudidaya Ikan in Tanjung Seteko, Indralaya, Ogan Ilir. Fish rearing for 28 days. Fish stocked in 2 nets (size 0,5 m ´ 0,5 m ´ 0,65 m) that were placed in concrete pond (size 5 m ´ 4 m ´ 0,7 m). The first pond (K0) as control (without starvation and fed by commercial feed) and the second pond (K1) as treatment (starvated and fed by fermented feed). The parameters were absolute growth of weight and length, feed conversion ratio, and survival rate. Water quality measurements were temperature and pH. The results showed that absolute growth of tilapia that were starvated and fed by fermented feed were higher than those were not starvated and fed by commercial feed. Fish that starvated and fed by fermented feed produced an absolute weight growth of 7.14 g, absolute length growth of 2.34 cm, feed conversion ratio of 1.4, survival rate of 93.3%, and water quality in fish ponds were pH of 7.3-8.3 and temperature of 25.4-31.7℃
Tingkat Keberhasilan Pembentukan Kista Artemia pada Berbagai Tingkat Perubahan Salinitas di BBPAP Jepara
No full textAplikasi Kapur Kalsit pada Tanah Gambut untuk Meningkatkan pH Air Media Pemeliharaan Ikan Patin
Get PDFSari OR, Jubaedah D, Wijayanti M, Marsi M. 2021. Application calcite limein peat soil to improve water pH in culture media of catfish (Pangasius sp.). In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-9 Tahun 2021, Palembang 20 Oktober 2021. pp. 844-853. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI). Application of calcite lime has been researched to be able to increase the pH of water and soil of catfish culture media. Application of lime is not only affected by soil and water pH but also affected by organic matter as in peat soil that have high carbon organic. This research aims to know the effect of calcite lime and various C-organic on water and soil pH for culture of catfish.This research was conducted from July to December 2019 at the Laboratory of Aquaculture Experimental Pond, Aquaculture Study Program, Faculty of Agriculture, Sriwijaya University. This research use Factorial Completely Randomized Design. Thefirst factor is different dose of calcite lime that are 7000 kg/ha equivalent CaO (K1), 8000 kg/ha equivalent CaO (K2), 9000 kg/ha equivalent CaO (K3), 10000 kg/ha equivalent CaO (K4). The second factor is peat soil with different soil organic carbon that are 19.72% (C1) and 59.98% (C2). The results of this study indicated that K3C1(interaction of dosage of lime 9000 kg/ha equivalent to CaO and 19.62% C-organic) increased the initial soil pH from 3.2 to 7.43, and water pH from 3,2 to 7.33, and produces 100% survival of catfish, absolute growth of length 9.08cm and absolute growth of weight 4.60 g
PERTUMBUHAN POPULASI Daphnia sp. DENGAN PEMBERIAN LARUTAN KULIT SINGKONG TERFERMENTASI
Get PDFABSTRACT Fermented cassava peels is one of the potential nutrient for growth of Daphnia sp population. This research aim was to know the influence of fermented cassava peels with yeast as source nutrition food to population growth of Daphnia sp.. This research was conducted in May 2016 Laboratory of Aquaculture, Aquaculture Program Study Sriwijaya University. This study used a complete randomized design (CRD) with four treatments and three replications i.e Daphnia sp. fed with fermented cassava peels of 0.05, 0.10, 0.15 and 0.2 g.mL-1. The data collected is a test of proximate peels before and after fermented cassava, population densities of Daphnia sp., the growth rate of population Daphnia sp., time achievement of Daphnia sp. population peak and physical chemistry of water. Research results show that fermentation by yeast can improve the nutritional value of cassava peels as a protein in by 0,45 and lower carbohidrate of 6,79, ash content 1,31, 1,04 fat and HCN 3 Provision of fermented cassava peel solution of 0.20 g.mL-1 produces a peak population of 494 ind.L-1 to 7.3 days and the rate of population growth as much as 43.91% .days-1. Physical chemistry of water during the study are in the optimum range for growth of Daphnia sp. Keywords : Daphnia sp., cassava peels, fermentated, yeas
PENGGUNAAN KAPUR DOLOMIT [CAMG(CO3)2] PADA DASAR KOLAM TANAH SULFAT MASAM TERHADAP PERBAIKAN KUALITAS AIR PADA PEMELIHARAAN BENIH IKAN PATIN (Pangasius sp.)
Get PDFABSTRACTAcidic waters was common problem in aquaculture in acidic soil area. Poor water quality in the acid sulfate soil pond has potential to decrease fish survival rate dan fish growth. Liming pond is one of method to neutralize (buffer) acid in fish pond. The aim of the research is to determine the best dosage of dolomite lime [CaMg(CO3)2] in acid sulfate soil pond to water quality, survival rate and growth of catfish. The research conducted on September-October 2016 in Laboratorium Kolam Percobaan, Program Studi Budidaya Perairan, Fakultas Pertanian, Universitas Sriwijaya, Indralaya. The research based on completely random design with four treatments and three replications. The treatments were different dosage of dolomite lime that are 6 (P1), 9 (P2), 12 (P3), and 15 (P4) ton/ha equivalent CaCO3. The research parameter were water quality, survival rate, and growth. The result showed that dosage 12 ton/ha was the best treatment that has highest survival rate 96.6 %, absolute growth of length 3.5 cm, weight 7.91g and feed efficiency 106,77%. Keywords: liming, dolomite, acid sulfate soil, seedling catfis
Utilization of Lime Derived From Mussel Freshwater Shells (Pilsbryoconcha exilis) to Increase Swamp Water pH For Catfish (Pangasius sp.) culture
Get PDFThe water pH of swamp land is generally low (below 4) and becomes a constraint in catfish culture that requires pH 6.5-8.5. In this current study, the low pH value of water was overcome by liming using lime produced from the mussel freshwater shells. The purposes of this study were to determine the best dosage of lime derived from mussel freshwater shells to increase the pH of swamp water, as well as its effect on the survival rate and growth of catfish fingerlings. This study used Completely Randomized Design (CRD) with 5 treatments and 3 replications. The treatments used were the different dosages of lime derived from mussel freshwater shells (P1=4,000, P2=5,000, P3=6,000, P4=7,000 kg/ha equivalent CaO) and calcite (CaCO3) as control (P5= 6,000 kg/ha equivalent CaO). The result showed that P4 was the best treatment according to data of swamp water pH increased from 3.4 to 8.23, soil pH increased from 3.4 to 8.22, survival rate (100%), absolute growth of weight (56.59 g) and length (13.37 cm) and feed effeciency (113.06%)
Isolasi Fungi Asal Rawa Lebak Untuk Bioremediasi Air Rawa Tercemar Bahan Organik
Get PDFAquaculture sometimes only depends on water absorption without water exchange therefore the accumulation of organic material give impact on water quality in aquaculture and cause illness and death of fish. Fungi have many variations in water that can be selected by isolation and identification to maintain water quality swamp cultured. This research aims to get swamp fungi isolates as candidate bioremediator of swamp water contaminated with organic matter. Research was conducted from December 2016 to April 2017 in Laboratory of Microbiology, Department of Biology, Faculty of Science and Mathematics, Sriwijaya University and Basic Laboratory of Fisheries, Department of Aquaculture, Faculty of Agriculture, University of Sriwijaya. The methods of research started from isolation and selection of fungi, analysis of isolates capability to improve the quality of black water, and observations of swamp water quality.This research method started from isolation and selection lipolytic, cellulolytic, proteolytic fungi, the test isolates ability to improve swamp water quality and observation of water swamp quality. Monitoring of water quality done at the sampling time, beginning and end of the research, including pH, temperature, ammonia and TDS. The results showed that the best fungi growth rate in contaminated swamp water of organic matter was 93%.day-1. Fungi isolates are able to play a role in the ammonification of bioremediation process.
PERTUMBUHAN DAN KELANGSUNGAN HIDUP IKAN PATIN (Pangasius SP.) DI SISTEM RESIRKULASI DENGAN PADAT TEBAR BERBEDA
Get PDFABSTRACT The purpose of this study was to observe the effect of stocking density on the growth and survival of catfish (Pangasius sp.) 3 ± 0,5 cm in a recirculation system with water flow of 0.1 L.sec-. This study was conducted in May - June 2016 in the Basic Laboratory of Fisheries, University of Sriwijaya. The research method used a completely randomized design with three treatments and three replications. The treatment were stocking density of fish 20 ind.L-1 (P1),30 ind.L-1 (P2),and 40 ind.L-1 (P3). Parameters observed were fish growth, survival rate and water quality. The results showed that the different stocking density on a recirculation system with water flow 0.1 L.sec-1 did not significantly different to the survival rate. In this research P1 treatment with stocking density 20 fish.L-1was the best treatment, with absolute weight growth 1.03 ± 0.43 g, absolute length growth 1.86 ± 0.50 cm, and survival rate 73.34 ± 4.30 %. Keywords : Stocking density, Recirculation system, Pangasius sp. Â
DAYA TETAS TELUR IKAN PATIN (Pangasius hypophthalmus) PADA pH MEDIA BERBEDA
Get PDFThe pH of waters is one of external factors that is important for succesfull of hatching percentage of fish eggs. The pH stimulates the chorionase enzyme become more active that can softens the egg chorion. The aim of this study was to determine the optimum pH value for hatching of catfish eggs. This research has been conducted in Fisheries Basic Laboratory, Department of Aquaculture, Department of Fisheries, Agriculture Faculty, Universitas Sriwijaya from August 31st to September 16th, 2019. The research metehod used Completely Randomized Design with five treatments and 3 replications. The treatments are P1 (pH of 5±0.2), P2 (pH of 6±0.2), P3 (pH of 7±0.2), P4 (pH of 8±0.2) dan P5 (pH of 9±0.2). The results showed that different value of water pH gave significant effect on hatching percentage, hatching time and survival rate of catfish larvae but did not significant effect on percentage of abnormal larva. The highest hatching percentage (80.33 %) was in treatment of pH 7 ± 0.2 (P3), the fastest hatching percentage (21.59 hours) was in treatment of pH 8 ± 0.2 (P4), the highest survival rate of catfish larvae (99.44 %) was in treatment of pH 7 ± 0.2 (P3) and the highest percentage of abnormal larvae (2.22 %) was in treatment pH 5 ± 0.2 (P1). During the research, water quality were in tolerance range for hatching and rearing of eggs and larvae catfish i.e. temperature of 26.2 – 27.9 oC, dissolved oxygen of 4.7 – 5.5 mg.l-1, and ammonia of 0.22 – 0.47 mg.l-1.Keyword : Hatching eggs, catfish, pH valu
Pemanfaatan Kapur Cangkang Keong Mas pada Air Rawa Media Pemeliharaan Ikan Lele dengan Model Budikdamber
No full textOne of the currently developing urban farming models is budikdamber, which is a mutually beneficial combination of aquaculture and hydroponic systems with a bucket as a medium for cultivation. This research aims to find out the best dosage of golden snail shells lime for increasing the swamp water pH for rearing catfish (Clarias sp.) and kale using the budikdamber model. This research applied a completely randomized design with six treatments and three replications. The dosages of golden snail shells lime used as treatment consist of 0.00 mg L-1 equivalent to CaO (P0), 10 mg L-1 equivalent to CaO (P1), 20 mg L-1 equivalent to CaO (P2), 30 mg L-1 equivalent to CaO (P3), 40 mg L-1 equivalent to CaO (P4) and 50 mg L-1 equivalent to CaO (P5). The results of this study indicate that the best dose of golden snail shell lime is 20 mg L-1 equivalent to CaO (P2), which can optimize the swamp water pH from 4.80 to 6.78, survival rate 84 %, absolute weight growth of 18.44 g, absolute length growth of 6.15 cm and feed efficiency 132.49 %, and the total weight of the kale plant 11.33 g.
Satu dari beberapa model urban farming yang berkembang yaitu budikdamber, merupakan kombinasi sistem akuakultur dengan media ember sebagai wadah budidaya dan hidroponik yang saling menguntungkan. Penelitian ini bertujuan untuk mengetahui dosis terbaik kapur cangkang keong mas dalam upaya meningkatkan pH air rawa lebak terhadap pemeliharaan ikan lele (Clarias sp.) dengan model budikdamber budidaya ikan dengan tanaman kangkung. Penelitian ini menggunakan rancangan acak lengkap dengan enam perlakuan dan tiga ulangan. Perlakuan yang diberikan perbedaan dosis kapur cangkang keong mas yaitu 0,00 mg L-1 setara CaO (P0), 10 mg L-1 setara CaO (P1), 20 mg L-1 setara CaO (P2), 30 mg L-1 setara CaO (P3), 40 mg L-1 setara CaO (P4) dan 50 mg L-1 setara CaO (P5). Hasil penelitian ini menunjukkan bahwa dosis terbaik pada pemberian kapur cangkang keong mas yaitu dosis 20 mg L-1 setara CaO (P2), yang mampu mengoptimalkan pH air rawa lebak 4,80 menjadi 6,78, kelangsungan hidup 84 %, pertumbuhan bobot mutlak 18,44 g, pertumbuhan panjang mutlak 6,15 cm dan efisiensi pakan 132,49 %, serta menghasilkan panen total tanaman kangkung sebanyak 11,33 g
