scholarly journals WATER LEVEL VARIATIONS FOR EGG HATCHABILITY AND LARVAL SURVIVAL OF KELABAU FISH (Osteochilus melanopleura Blkr)

2016 ◽  
Vol 2 (3) ◽  
pp. 6-10
Author(s):  
Rukmini Rukmini

The purposes of this study were to observe and analyze the water level variations of the culture media that were optimal for egg hatchability and larval survival of kelabau fish kept in aquarium. This study was conducted in the Freshwater Aquaculture Development Centre (FADC) Banjar Regency in August 2015. The method used in this study was experimental, using a completely randomized design with 3 treatments (A = water level of 15 cm/aquarium), (B = water level of 25 cm/aquarium), (C = water level of 35 cm/aquarium) and 3 replications. The parameters measured in this study were the egg hatchability, survival rate, relative growth rate, and water quality (temperature, pH, DO, Ammonia). Data were analyzed by Anova and the differences between treatments were tested with Duncan test. The results showed that the water level very significantly affected the egg hatchability with the highest value in B (38.29%) followed by C (31.83%) and A (14.04%). The highest survival rate was in C (79.73%) followed by B (65.10%) and A (21.83%). The relative growth rate had not significant effect with the average results between all treatments (104.92 – 117.27%). The water quality of the culture media was still good to support the growth and survival of fish.

2019 ◽  
Vol 21 (2) ◽  
pp. 85
Author(s):  
Nurbety Tarigan ◽  
Firat Meiyasa

The aim of this study was to examine the effectiveness of the commercial bacterial probiotic addition in feed on growth and survival rate of common carp. This research was conducted from July to September 2018. This study used a completely randomized design (CRD) with four treatments and three replications. The initial body length of juveniles was 5-6 cm with density 1 juvenile/litersfor 42 days. In this research, we used different dosages of commercial probiotics 0, 5, 10 and 15 ml/kg. The results showed that the administration of those probiotics in the feed had a significant effect on the relative growth rate, survival rate, efficiency of feed utilization, and protein efficiency ratio on carp juvenile. Administration of probiotics at 15 ml/kg is the best treatment for a relative growth rate 2.96%, survival rate 100%, efficiency of food utilization 72.07%, and protein efficiency ratio 12.19%. In conclusions, probiotics mixed in feed are able to increase the digestibility of feed so that it supports the growth and survival rate of common carp.


Author(s):  
Dini Islamiyah ◽  
Diana Rachmawati ◽  
Titik Susilowati

<p align="center"><strong>ABSTRAK</strong></p><p>Kualitas pakan yang baik selain dari kandungan protein, juga berasal dari kandungan mineral yang terdapat di dalamnya. Penambahan madu dalam pakan buatan mampu memberikan kadar mineral yang dibutuhkan tubuh untuk pertumbuhan. Madu mengandung mineral-mineral yang berfungsi untuk pembentukan sel, pengatur kadar air dalam tubuh dan mengandung antioksidan yang dapat berfungsi untuk ketahanan tubuh. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan madu pada pakan buatan terhadap laju pertumbuhan relatif, efisiensi pemanfaatan pakan dan kelulushidupan ikan bandeng (<em>Chanos chanos</em>). Ikan uji yang digunakan dalam penelitian ini adalah ikan bandeng (<em>C. chanos</em>) ukuran nener dengan rata-rata bobot awal sebesar 0.8 – 1.2g dengan jumlah padat tebar 25 ekor/wadah. Frekuensi pemberian pakan dilakukan 3 kali sehari pada pukul 07.00 WIB, 12.00 WIB dan 17.00 WIB sebesar 5% dari bobot biomassa. Penelitian ini dilakukan dengan metode eksperimental menggunakan rancangan acak lengkap (RAL), 4 perlakuan dan 3 kali pengulangan. Perlakuan dalam penelitian ini adalah penambahan madu dengan dosis yang berbeda pada pakan buatan, antara lain: A (0 ml/kg pakan); B (125 ml/kg pakan); C (250 ml/kg pakan) dan D (375 ml/kg pakan). Hasil penelitian menunjukkan bahwa penambahan madu pada pakan buatan memberikan pengaruh nyata (P&lt;0,05) terhadap pertumbuhan bobot mutlak (W), laju pertumbuhan relatif (RGR), efisiensi pemanfaatan pakan (EPP) dan protein efesiensi rasio (PER) serta tidak berpengaruh nyata (P&gt;0,05) terhadap Survival Rate (SR). Perlakuan D (375ml/kg pakan) merupakan perlakuan terbaik yang memberikan nilai tertinggi pada W (249,53±2,75g); RGR (24,55±0,17%/hari); EPP (47,36±0,50%), dan PER (1,81±0,08%). Kualitas air pada media pemeliharaan yang meliputi suhu, DO, pH, amonia dan salinitas tergolong pada kisaran yang sesuai untuk budidaya ikan bandeng (<em>C. chanos</em>).</p><p> </p><p><strong>Kata kunci</strong>:Pakan; Madu; Ikan Bandeng; Dosis</p><p> </p><p align="center"><strong><em>ABSTRACT</em></strong></p><p><em>The quality of the feed is good aside from the content of protein as well as from mineral contained therein. Addition of honey in artificial fish feed could gave some minerals which needed for growing up. Honey contains minerals that served for the establishment of a regulator, cell water content in the body and contains antioxidants that could served for the resilience of the body. This research aims to know the effect of the addition of honey in the feeding -made against relative growth rate, efficiency of feed utilization and the survival rate of milkfish (</em>Chanos chanos<em>). The fish used in this research is the milkfish (</em>C. chanos<em>) in size with an average weight of 0.8 – 1.2 g to the amount of dense stocking 25-ind /cages. Frequency of feeding was done in 3 times a day at 7:00 PM GMT, 12:00 PM GMT and 17:00 PM GMT amounting to 5% of the weight of biomass. This research was conducted with the experimental method using random design complete (RAL), with the 4 treatments and repetition as much as 3 times. The treatments in this study is the addition of honey with different doses in artificial feed such as  A (0 ml/kg of feed); B (125 ml/kg of feed); C (250 ml/kg of feed) and D (375 ml/kg of feed). The results showed that the addition of honey in artificial feed has significant (P &lt; 0.05) in absolutally weight (W), relative growth rate (RGR), efficiency of feed utilization (EPP) and protein effeciency ratio (PER) and has no significant (P &gt; 0.05) for survival rate (SR).  The treatment D is the best once which has gave the highest value on the W (249,53 ± 2,75 g); RGR (24,55 ± 0,17 %/day); EPP (47,36±0,50%), and PER (1.81±0.08%). Water quality maintenance of media such as temperature, DO, pH, salinity and ammonia have in range that is suitable for the cultivation of milkfish (</em>C. chanos<em>).</em><em></em></p><p><em> </em></p><p><strong><em>Keywords</em></strong><em>: Feed, Honey, Milkfish, Doses</em></p>


2018 ◽  
Vol 19 (2) ◽  
pp. 183 ◽  
Author(s):  
Lismining Pujiyani Astuti ◽  
Indriatmoko Indriatmoko

ABSTRACTAquatic plants are important part of aquatic ecosystem that can be used as an phytoremidiation agent, trapping organic matter in eutrophic waters as well as cleaning and controlling heavy metal pollution, pesticides and oil. The aim of research to assess the ability of some aquatic plants to organic matter and phosphate reduction for improve water quality. Research conducted at the Greenhouse of Institution Research for Fishes Resources Rehabilitation in May 2016. The study using factorial completely randomized and all treatment were conducted in triplicate. Aquatic plants are used Azolla sp., Spirodela sp., Duckweed (Lemna sp.), Salvinia sp., Water lettuce (Pistia sp), and water hyacinth (Eicchornia crassipes). Water media used are high stock solution of organic matter derived from fish farming waste water containing undigested, food, faeces and urine of fish. Water sampling was conducted on day 0 (T0), 2nd (T2), 5th (T5) and 9th (T9) after planting. The results showed that the total organic matter) and P-PO4 significantly different based on day of sampling, while the aquatic plant treatment significantly different at P-PO4 concentration, but not significantly different from the organic matter. However, based on the percentage change showed that the wood lettuce (Pistia sp) capable of lowering the BOT and P-PO4 as much as 55.52% and 60.62%, and the water hyacinth can lower both BOT and P-PO4 as much as 23.38 % and 92.68%. Relative growth rate (RGR) was higher in the aquatic plants that tend to be small as Spirodela sp,  Lemna sp and with doubling time (DT) is relatively short. Water hyacinth plants tend to have a lower RGR values and DT are relatively long. The value of RGR and DT related to the availability of nutrients.Keywords: Aquatic Plants, Water Quality, Relative Growth Rate (RGR), Doubling Time (DT)ABSTRAKTumbuhan air merupakan bagian penting dari ekosistem perairan yang dimanfaatkan sebagai agen fitoremediasi, perangkap bahan organik di perairan eutrofik serta membersihkan dan mengontrol pencemaran logam berat, pestisida dan minyak. Tujuan penelitian untuk mengkaji kemampuan beberapa tumbuhan air dalam mengurangi pencemaran bahan organik dan fosfat dalam upaya memperbaiki kualitas perairan. Penelitian dilakukan di laboratorium rumah kaca Balai Riset Pemulihan Sumberdaya Ikan pada bulan Mei 2016. Penelitian menggunakan Rancangan Acak Lengkap Faktorial dengan tiga ulangan. Tumbuhan air yang digunakan Azolla sp., Spirodela sp., Mata lele (Lemna sp.), Kiambang (Salvinia sp.), Kayu apu (Pistia sp.), dan Eceng Gondok (Eicchornia  crassipes). Media air yang digunakan adalah larutan stok tinggi bahan organik berasal dari air limbah budidaya ikan yang mengandung sisa pakan yang tidak tercerna, feses dan urin ikan. Pengambilan sampel air dilakukan pada 0 hari (T0), 2 hari (T2), 5 hari (T5) dan 9 hari (T9) setelah penanaman. Hasil penelitian menunjukkan bahwa bahan organik total (BOT) dan P-PO4 berbeda nyata pada perlakuan hari, sementara perlakuan jenis tumbuhan air berbeda nyata pada konsentrasi P-PO4 namun tidak berbeda nyata pada BOT. Persentase perubahan menunjukkan bahwa kayu apu mampu menurunkan BOT dan P-PO4 sebesar 55,52% dan 60,62% serta eceng gondok mampu menurunkan BOT dan P-PO4 sebesar 23,38% dan 92,68%. Nilai relative growth rate (RGR) lebih tinggi pada tanaman air yang cenderung kecil seperti Lemna sp dan Spirodela sp dengan doubling time (DT) yang relatif pendek. Tanaman eceng gondok cenderung mempunyai nilai RGR rendah dan DT yang relatif lama. Besarnya nilai RGR dan DT berkaitan dengan ketersediaan nutrisi.Kata kunci: Tumbuhan Air, Kualitas Air, Relative Growth Rate (RGR), Doubling Time (DT)


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