scholarly journals PENERAPAN TEKNOLOGI BUDIDAYA IKAN LELE BIOFLOK SEBAGAI UPAYA PENINGKATAN PENDAPATAN MASYARAKAT DI DESA PANDAN ARANG, KABUPATEN OGAN ILIR

2021 ◽  
Vol 5 (1) ◽  
pp. 75
Author(s):  
Madyasta Anggana Rarassari ◽  
Marini Wijayanti ◽  
Sefti Heza Dwinanti ◽  
Retno Cahya Mukti ◽  
Danang Yonarta
Keyword(s):  
Water Quality ◽  
Culture Medium ◽  
Optimal Growth ◽  
Nutrient Utilization ◽  
Transfer Of Knowledge ◽  
Absolute Weight ◽  
The Public ◽  
Biofloc Technology ◽  
Absolute Length ◽  
Improve Water Quality

Biofloc Technology (BFT) menjadi salah satu teknologi alternatif dalam akuakultur yang bertujuan untuk memperbaiki kualitas air dan meningkatkan efesiensi pemanfaatan nutrisi. Tujuan dari Pengabdian Kepada Masyarakat ini adalah untuk memperkenalkan dan memberikan informasi kepada masyarakat dan petani tentang budidaya ikan Lele dengan sistem bioflok. Kegiatan ini dilakukan di Desa Pandan Arang, Kabupaten Ogan Ilir dengan menggunakan metode pemberdayaan partisipati aktif kelompok pembudidaya ikan pada mitra yang diajak kerjasama dengan transfer ilmu dan teknologi, meliput beberapa tahapan yaitu: 1) Persiapan; 2) Penyuluhan pembuatan pakan dan budidaya ikan; 3) Pembuatan demplot dan pendampingan; 4) Evaluasi dan pembuatan laporan hasil kegiatan. Hasil yang didapat bahwa kegiatan budidaya ikan lele dengan menerapkan sistem bioflok memberikan hasil dapat memperbaiki kualitas air pada budidaya ikan lele, terutama dalam menurunkan nilai ammonia dalam media budidaya. Serta memberikan pertumbuhan optimal pada ikan lele dengan bobot mutlak 8,4 gram/ekor dan pertumbuhan panjang mutlak 8,6 cm/ekor. Kata kunci: Biofloc Technology, Ikan Lele, Desa Pandan Arang, Budidaya Ikan ABSTRACT Biofloc Technology (BFT) is an alternative technology in aquaculture that aims to improve water quality and increase the efficiency of nutrient utilization. The purpose of this social dedication are to introduce and provide information to the public and farmers with biofloc system. This activity is carried out in Pandan Arang Village, Ogan Ilir District with an active participatory empowerment method for farmers fish in partners who are invited to collaborate with the transfer of knowledge and technology, covering several stages, 1) preparation; 2) counseling for feed and fish cultivation; creating demonstration plots and assistance; 4) evaluation and making reports on the results of activities. The results showed that catfish culture using the biofloc technology could improve water quality in catfish aquaculture, particularly in reducing the value of ammonia in the culture medium. As well as providing optimal growth in catfish witn an absolute weight of 8,4 gr and absolute length growth of 8,6 cm. Keywords: Biofloc Technology, Catfish, Pandan Arang Village, Aquaculture

scholarly journals Penggunaan Melati Air (Echinodorus palaefolius) sebagai Filter Biologi pada Pemeliharaan Ikan Maanvis (Pterophyllum scalare)

2019 ◽  
Vol 8 (1) ◽  
pp. 67-76
Author(s):  
Kezia Agustine Riyadhi ◽  
Dade Jubaedah ◽  
Marini Wijayanti
Keyword(s):  
Water Quality ◽  
Feed Efficiency ◽  
Absolute Weight ◽  
Length Growth ◽  
Weight Growth ◽  
Biological Filter ◽  
Randomized Design ◽  
Absolute Length ◽  
Fish Survival ◽  
Pterophyllum Scalare

Riyadhi et al, 2019. The Using of Water Jasmine (Echinodorus palaefolius) as Biological Filter on Angelfish (Pterophyllum scalare)  Rearing. JLSO 8(1):67-76. Water quality was one factors that become a contraint in ornamentalfish culture. This study aimed to compare the result of  jasmine water as a biological filter in maintaining water quality and reducing organic matter in the rearing of angelfish with a recirculation system. This research was conducted for 28 days at the Basic Laboratory of  Aquaculture, Departement of aquaculture, Universitas Sriwijaya. The research Used a completely randomized design with 5 treatments and 3 replications. The results showed that water quality  of  the temperature, pH, dissolved oxygen, ammonia, nitrat and  phosphate values was (27.2-29.2ºC), (5.7-6.9), (4.68-5.74 mgL-1), (0.005-0.037 mgL-1), (0,06-0,12 mgL-1) and ( 0.013-0.107 mgL-1). In treatment P0 the lowest fish survival was 44.45%, absolute length growth was 1.56 ± 0.26 cm, absolute weight growth was 1.47 ± 0.34 g, feed efficiency was 40,54 ± 2,54. While in treatment P4 the highest survival was 72.22%, absolute length growth was 1.24 ± 0.17, absolute weight growth was 1.25 ± 0.24 g feed efficiency 51.32 ± 13. The survival rate of angelfish in the treatment  without using water jasmine showed the lowest percentage of survival compared to other treatment.

scholarly journals Lama Waktu Perendaman Larva Ikan Gabus (Channa Striata) Dalam Larutan Hormon Tiroksin Untuk Meningkatkan Pertumbuhan Dan Kelangsungan Hidup

2019 ◽  
Vol 7 (1) ◽  
pp. 25-33
Author(s):  
Andre F Pasaribu ◽  
Muslim Muslim ◽  
Mochamad Syaifudin
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Optimal Growth ◽  
Fish Growth ◽  
Growth And Survival ◽  
Weight Growth ◽  
Randomized Design ◽  
Absolute Length ◽  
Channa Striata ◽  
Dipping Time

The thyroxine has been known as a hormone that can increase fish growth especially in the larvae stage. The provision of hormone thyroxine on larvae fish can be conducted through dipping. Determination of dipping time are very important to increase growth. The purposes of this research are determining the optimum dipping time for the growth and survival rate of snakehead larvae. This research was done at Laboratorium Dasar Perikanan, Aquaculture, Faculty of Agriculture, University of Sriwijaya, Indralaya. The method used Competely Randomized Design (RAL) with five treatments and three replicates, with dipping time are 24, 27, 30, 33 and 36 hours. The parameters observed are the absolute length growth, absolute weight growth, survival rate of larvae and water quality (temperature, pH and disolved oxygen). The results showed that the duration of immersion in thyroxine hormone solution in snakehead larvae showed relatively faster growth on treatment (P5) with 36 hours of dipping time. While the regression test result showed the optimal growth of snakehead larvae at the time immersion for 27,92 – 29,49 hours. Thyroxine hormone increased the growth of snakehead larvae but has no statistically significant effect. The length of time of thyroxine hormone 24-36 hours with a dosage of 0.1 mg l-1 did not affect the survival of snakehead larvae. Water quality of maintenance media is still tolerance for supporting the growth and survival of snakehead larvae.

scholarly journals The Influence of Feeding Combination Silkworm (Tubifex sp.) with Commercial Feed on Growth Performance of Catfish (Clarias sp.)

2021 ◽  
Vol 8 (2) ◽  
pp. 74
Author(s):  
Dewi Agustina ◽  
Retno Cahya Mukti
Keyword(s):  
Water Quality ◽  
Growth Performance ◽  
Feed Efficiency ◽  
Fish Farming ◽  
Growth Data ◽  
Absolute Weight ◽  
Length Growth ◽  
Weight Growth ◽  
Commercial Feed ◽  
Absolute Length

This study aims to determine the growth of catfish (Clarias sp.) Seeds by giving a combination of silkworms (Tubifex sp.) and commercial feed. This research was conducted in August - October 2020 in the fish farming group of PT ASABRI, West Ilir II Palembang, South Sumatera. The treatments used in this study were 100% silkworm (control) feeding and a combination of feed treatment consisting of 75% commercial feed and 25% silkworms. Parameters include absolute weight growth, absolute length growth, feed efficiency, survival, and water quality. The results obtained from this study indicate that combination feeding (P1) obtained better results than the control (P0) with absolute weight growth data of 8.38 g, absolute length 7.39 cm, feed efficiency 56.38% and survival 87.50%.Keywords: catfish, commercial feed, combination, growth silkworm

scholarly journals PENGARUH RENTANG WAKTU PENINGKATAN SALINITAS TERHADAP KELULUSHIDUPAN DAN PERTUMBUHAN LARVA IKAN BAUNG (H. nemurus)

2021 ◽  
Vol 35 (3) ◽  
pp. 179-184
Author(s):  
Ahlun Nazar ◽  
Fakhrunnas MA Jabbar ◽  
Hisra Melati
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Survival Rate ◽  
Absolute Weight ◽  
Additional Information ◽  
Weight Growth ◽  
Randomized Design ◽  
Absolute Length ◽  
Completely Randomized Design ◽  
Quality Measurements

This research is expected to be useful especially for fish farmers as additional information in raising baung fish.  The method used was an experimental method using a Completely Randomized Design (CRD) with 4 treatments and 3 replications namely: P1 = 5 ‰ per 3 days 7 ‰ per 3 days, 9 ‰ per 3 days, P2 = 5 ‰ per 5 days 7 ‰ per 5 days 9 ‰ per 5 days, P3 = 5 ‰ per 7 days 7 ‰ per 7 days 9 ‰ per 7 days, P4 = 5 ‰ per 9 days 7 ‰ per 9 days 9 ‰ per 9 days. The baung fish used for the study was obtained from spawning at the Fish Seed Center (BBI) of the Faculty of Agriculture, Riau Islamic University with a weight of 0.14 gr of baung fish/tail and 1.6 cm in length/tail. The container used is a jar a size of 10 liters. From the results of the study obtained the best absolute weight growth and absolute length of the treatment (P4) with a weight of 4.35 gr and a length of 1.84 cm, followed by treatment (P2) with a weight of 3.96 gr and P3 a length of 1.82 cm, (P3 ) weighing 3, 75 gr and P2, 1.73 cm long, and the lowest in treatment (P1) with a weight of 2.64 grams and a length of 1.28 cm. The daily weight growth rate in the treatment group (P2) was 17.31%, (P2) 15.17%, (P4) 13.18%, and the lowest (P3) was 12.60%. The best survival rate for treatment (P4) was 72.00%, followed by treatment (P3) at 54.67%, and the lowest for treatment (P1) was 6, 67%. The results of water quality measurements in this study were temperature 28-300C, pH 6-7, dissolved oxygen 0.4 ppm, ammonia 0.05 ppm. Based on the observations of water quality during the study was within the range of tolerance for the growth and life of baung fish.

Mixed Culture Microalgae Removal for Water Quality Improvement Using Chitosan

2020 ◽  
Author(s):  
Gulab Singh ◽  
S. K. Patidar
Keyword(s):  
Water Quality ◽  
Algal Biomass ◽  
Culture Medium ◽  
Mixing Time ◽  
Operational Parameters ◽  
Efficient Removal ◽  
Mixing Rate ◽  
Beneficial Uses ◽  
Improve Water Quality ◽  
Slow Mixing

The presence of microalgae affects water quality and beneficial uses of surface freshwaters. Chitosan with proven potential for harvesting specific microalgae species from their culture medium for producing biofuels and bioproducts appears promising for efficient removal of mixed microalgae species from surface freshwaters also. The main thrust of the present study was on removal of mixed microalgae species using chitosan as a coagulant to help improve water quality. Important operational parameters were optimized for economical microalgae removal. The microalgae cells, chlorophyll-a, TN and TP removal efficiency were 82.06, 89.90, 69.32 and 44.01%, respectively at an optimum chitosan dose of 10 mg/L, pH 8, slow mixing time 7 min, slow mixing rate 30 rpm and settling time of 15 min. The results have shown that chitosan coagulation efficiently removed the mixed microalgae species from surface freshwater with significant improvement in water quality and recovery of algal biomass for other beneficial applications.

scholarly journals PERTUMBUHAN DAN KELANGSUNGAN HIDUP IKAN BETOK (Anabas testudineus) YANG DIBERIKAN PAKAN KOMERSIAL DENGAN FREKUENSI BERBEDA

2020 ◽  
Vol 2 (2) ◽  
pp. 133-138
Author(s):  
Rafli ◽  
Nasmia ◽  
Madinawati ◽  
Samliok Ndobe
Keyword(s):  
Water Quality ◽  
Animal Husbandry ◽  
Fish Growth ◽  
Feeding Frequency ◽  
Anabas Testudineus ◽  
Absolute Weight ◽  
Randomized Design ◽  
Absolute Length ◽  
Completely Randomized Design ◽  
The Absolute

This study aimed to determine the effect of commercial feeding (pellets) on the growth and viability of Betok fish (Anabas testudineus). The research was conducted at the Laboratory of Water Quality and Aquatic Biology, Faculty of Animal Husbandry and Fisheries, University of Tadulako Palu, from November to December 2019. This study was designed using a completely randomized design (CRD) with four treatments and five replications. Treatment A (feeding 2×/day), B (feeding 3×/day), C (feeding 4×/day) and D (feeding 5×/day). The results showed that feeding with different frequencies did not affect the growth in absolute weight and absolute length of Betok fish (Anabas testudineus). The growth of the absolute weight of Betok fish that was reared for one month ranged from 2.05-2.38 g, while the absolute length growth of the betok fish ranged from 0.345-0.42 cm. The highest growth in absolute weight and the absolute length was found at the feeding frequency of 2×/day (A). The survival rate of Betok fish (Anabas testudineus) reared for one month is 100%. During the research, water quality, it was still around the optimum range of betok fish growth.

scholarly journals Pemanfaatan Tepung Tapioka dengan Dosis Berbeda Sebagai Sumber Karbon Pembentuk Bioflok pada Media Pemeliharaan Benih Ikan Patin (Pangasius sp.)

2019 ◽  
Vol 8 (1) ◽  
pp. 54
Author(s):  
Novi Mayang Runa
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Carbon Source ◽  
Heterotrophic Bacteria ◽  
Culture Media ◽  
Randomized Design ◽  
Biofloc Technology ◽  
Absolute Length ◽  
Tapioca Flour ◽  
Control Water

Biofloc technology is one of alternative method that used to control water quality on culture media using heterotrophic bacteria with addition of organic matter. This research was held to determine the effect of tapioca flour addition as source of biofloc carbon in culture media on water quality, survival rate and growth of catfish fry. The research held on February to March 2015 in Laboratorium Budidaya Perairan, Aquaculture Department, Agriculture Faculty of Sriwijaya University. Used completely randomized design with four treatments and three replications were addition of tapioca flour with C/N ration 5, 10, and 15 as carbon source. The result showed that addition of flour as carbon source with C/N ratio of 15 was the best treatment with 88% survival rate, absolute length 3,20 cm and absolute weight 2,26 g. 

scholarly journals The Effect of Different Size Recirculation Systems on the Quality of Water in Tilapia (Oreochromis niloticus) Culture

2021 ◽  
Vol 26 (2) ◽  
pp. 85
Author(s):  
Wahyu Firmansyah ◽  
Nunik Cokrowati ◽  
Andre Rachmat Scabra
Keyword(s):  
Water Quality ◽  
Oreochromis Niloticus ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Feed Conversion ◽  
Cross Sectional ◽  
Absolute Weight ◽  
Length Growth ◽  
Weight Growth ◽  
Absolute Length

This study aims to analyze the effect of different cross-sectional areas of recirculation systems on water quality in tilapia (Oreochromis niloticus) rearing. The method used is an experimental method with a completely randomized design (CRD), 4 treatments and 3 replications each. The treatments are P0 (conventional), P1 (2 cross-sectional units with an area of 1,087 cm2), P2 (4 section units with an area of 2,174 cm2), P3 (6 section units with an area of 3,261 cm2). Each treatment used the same filter, namely cotton, zeolite, pumice stone, and bio balls. The results of the research the highest absolute weight growth was obtained in the P3 treatment with an average value of 4.56 g and followed respectively P2 4.38 g, P2 3.03, P0 2.59 g. The highest absolute length growth rate was obtained in treatment P3 2.71 cm, P2 of 2.54 cm, P1 of 1.87 cm, and the lowest absolute length was found in treatment P0 of 1.62 cm. The highest feed conversion value was at P0 at 3.91, followed by P1 at 2.84, P2 at 2.06, and the lowest at P3 at 1.94. The highest survival value was P3 of 85.00, P2 r 83.33, P1 73.33 and the lowest was P0 of 55.00. The highest diversity coefficient value was obtained in treatment P0 of 17.58, followed respectively by treatment P1 of 16.05, P2 of 12.91 and the lowest coefficient of diversity found in treatment P3 of 12.69. The conclusion of this study is the use of different recirculation cross-sectional areas has a significant effect on absolute weight growth, absolute length growth, feed conversion ratio, survival, and water quality. The recirculation cross-sectional area in P3 treatment with a cross-sectional area of 3.261 cm2 gave good results for the survival of tilapia (O. niloticus).

Performance-Based Management to Improve Water Quality

2005 ◽  
Author(s):  
John Rodecap ◽  
Chad Ingels
Keyword(s):  
Water Quality ◽  
Improve Water Quality
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