Effect of Rearing Density of ”Dumbo” Catfish (Clarias sp.) Fry on Production in the Controlled Nitrogen Culture System by Adding Wheat Powder

<p>Demand of "dumbo" catfish is going to increase every year so that fry production should be increased in order  to support intensification culture system to meet market demand. Intensification in fish culture system may cause decreasing of dissolved oxygen content  and producing hi...

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Main Authors: D. Shafruddin, . Yuniarti, Mia Setiawati
Format: Article
Language:English
Published: Asosiasi Sains Akuakultur Indonesia 2007-07-01
Series:Jurnal Akuakultur Indonesia
Online Access:http://journal.ipb.ac.id/index.php/jai/article/view/3997
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record_format Article
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language English
format Article
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author D. Shafruddin
. Yuniarti
Mia Setiawati
spellingShingle D. Shafruddin
. Yuniarti
Mia Setiawati
Effect of Rearing Density of ”Dumbo” Catfish (Clarias sp.) Fry on Production in the Controlled Nitrogen Culture System by Adding Wheat Powder
Jurnal Akuakultur Indonesia
author_facet D. Shafruddin
. Yuniarti
Mia Setiawati
author_sort D. Shafruddin
title Effect of Rearing Density of ”Dumbo” Catfish (Clarias sp.) Fry on Production in the Controlled Nitrogen Culture System by Adding Wheat Powder
title_short Effect of Rearing Density of ”Dumbo” Catfish (Clarias sp.) Fry on Production in the Controlled Nitrogen Culture System by Adding Wheat Powder
title_full Effect of Rearing Density of ”Dumbo” Catfish (Clarias sp.) Fry on Production in the Controlled Nitrogen Culture System by Adding Wheat Powder
title_fullStr Effect of Rearing Density of ”Dumbo” Catfish (Clarias sp.) Fry on Production in the Controlled Nitrogen Culture System by Adding Wheat Powder
title_full_unstemmed Effect of Rearing Density of ”Dumbo” Catfish (Clarias sp.) Fry on Production in the Controlled Nitrogen Culture System by Adding Wheat Powder
title_sort effect of rearing density of ”dumbo” catfish (clarias sp.) fry on production in the controlled nitrogen culture system by adding wheat powder
publisher Asosiasi Sains Akuakultur Indonesia
series Jurnal Akuakultur Indonesia
issn 1412-5269
2354-6700
publishDate 2007-07-01
description <p>Demand of "dumbo" catfish is going to increase every year so that fry production should be increased in order  to support intensification culture system to meet market demand. Intensification in fish culture system may cause decreasing of dissolved oxygen content  and producing high level waste in the pond culture.  The effort to control inorganic nitrogen in intensive culture system can be performed by adding wheat powder into fish culture media.  This can support metabolic process of nitrogen by microbe and then produce protein in terms of bacteria biomass production, so that inorganic nitrogen in the water decreases.  Fish can utilize protein from  microbe efficiently. This study was conducted to examine effect of rearing density on "dumbo" catfish fry production in the culture system by controlling nitrogen content in water through addition of  wheat powder.  "Dumbo" catfish fry of 12-day old in average body weight of 0.046±0.006 gram and length of 1.7±0.9 cm were reared for 28 days in density of 400, 800 and 1200 fish/m<sup>2</sup>.  The results of study showed that weight and body length of fry reached 1.35 gram and 5.1 cm, respectively. Average of daily growth and production were 10.47 - 11.48% and 2.49 - 3.54 g per day, respectively. Increased of rearing density was insignificantly (<em>p</em>>0.05) affected growth rate and daily production.  Average growth in absolute length, survival rate and feed efficiency was about 2.7-3.2 cm, 36.20 - 53.88% and 147 - 172%, respectively.  Increased in rearing density was followed by decreased growth in length (<em>p</em><0.05), survival rate and feed efficiency.</p> <p>Keywords: "dumbo" catfish, <em>Clarias</em>, nitrogen, wheat, rearing density</p> <p> </p> <p>ABSTRAK</p> <p>Permintaan ikan lele dumbo terus meningkat setiap tahunnya sehingga diperlukan peningkatan produksi benih untuk mendukung intensifikasi usaha budidaya dalam rangka memenuhi permintaan pasar. Budidaya ikan secara intensif dapat menyebabkan menurunnya kadar oksigen air, sedangkan limbah yang dihasilkan tinggi. Upaya untuk mengendalikan nitrogen anorganik pada budidaya intensif dapat dilakukan melalui pemberian tepung terigu ke dalam media budidaya. Hal ini akan mendukung proses metabolisme nitrogen oleh mikroba dan akan menghasilkan protein dalam bentuk bakteri sehingga nitrogen anorganik dalam air menjadi berkurang. Protein mikroba yang dihasilkan dapat dimanfaatkan sebagai sumber protein yang efisien bagi ikan. Penelitian ini bertujuan untuk mengetahui pengaruh tingkat kepadatan terhadap produksi benih ikan lele dumbo pada sistem budidaya  dengan pengendalian nitrogen melalui penambahan tepung terigu. Benih ikan lele dumbo (<em>Clarias sp</em>.) umur 12 hari dengan bobot rata-rata 0,046±0,006 gram dan panjang 1,7±0.9 cm dipelihara selama 28 hari dengan kepadatan 400 ekor/m<sup>2</sup>, 800 ekor/m<sup>2</sup>, 1200 ekor/m<sup>2</sup>.  Hasil penelitian menunjukkan bahwa  benih ikan mengalami peningkatan ukuran berat (1,35 gram) dan panjang (5,1 cm). Nilai rata-rata pertumbuhan dan produksi harian masing-masing berkisar 10,47 - 11,48% dan 2,49 - 3,54 gr/hari. Peningkatan kepadatan tidak berpengaruh nyata (p>0,05) terhadap laju pertumbuhan dan produksi harian. Nilai rata-rata pertumbuhan panjang mutlak, kelangsungan hidup dan efisiensi pakan masing-masing berkisar 2,7-3,2 cm, 36,20 - 53,88% dan 147 - 172%. Peningkatan kepadatan diikuti dengan penurunan pertumbuhan panjang (p<0,05), kelangsungan hidup dan efisiensi pakan.</p> <p>Kata kunci: lele dumbo, <em>Clarias</em>, nitrogen, terigu, padat penebaran</p>
url http://journal.ipb.ac.id/index.php/jai/article/view/3997
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spelling doaj-5aed243233d94391af8265f3209812292020-11-24T22:07:18ZengAsosiasi Sains Akuakultur IndonesiaJurnal Akuakultur Indonesia1412-52692354-67002007-07-015213714710.19027/jai.5.137-1473606Effect of Rearing Density of ”Dumbo” Catfish (Clarias sp.) Fry on Production in the Controlled Nitrogen Culture System by Adding Wheat PowderD. Shafruddin0. Yuniarti1Mia Setiawati2Bogor Agricultural University, Department of AquacultureBogor Agricultural University, Department of AquacultureBogor Agricultural University, Department of Aquaculture<p>Demand of "dumbo" catfish is going to increase every year so that fry production should be increased in order  to support intensification culture system to meet market demand. Intensification in fish culture system may cause decreasing of dissolved oxygen content  and producing high level waste in the pond culture.  The effort to control inorganic nitrogen in intensive culture system can be performed by adding wheat powder into fish culture media.  This can support metabolic process of nitrogen by microbe and then produce protein in terms of bacteria biomass production, so that inorganic nitrogen in the water decreases.  Fish can utilize protein from  microbe efficiently. This study was conducted to examine effect of rearing density on "dumbo" catfish fry production in the culture system by controlling nitrogen content in water through addition of  wheat powder.  "Dumbo" catfish fry of 12-day old in average body weight of 0.046±0.006 gram and length of 1.7±0.9 cm were reared for 28 days in density of 400, 800 and 1200 fish/m<sup>2</sup>.  The results of study showed that weight and body length of fry reached 1.35 gram and 5.1 cm, respectively. Average of daily growth and production were 10.47 - 11.48% and 2.49 - 3.54 g per day, respectively. Increased of rearing density was insignificantly (<em>p</em>>0.05) affected growth rate and daily production.  Average growth in absolute length, survival rate and feed efficiency was about 2.7-3.2 cm, 36.20 - 53.88% and 147 - 172%, respectively.  Increased in rearing density was followed by decreased growth in length (<em>p</em><0.05), survival rate and feed efficiency.</p> <p>Keywords: "dumbo" catfish, <em>Clarias</em>, nitrogen, wheat, rearing density</p> <p> </p> <p>ABSTRAK</p> <p>Permintaan ikan lele dumbo terus meningkat setiap tahunnya sehingga diperlukan peningkatan produksi benih untuk mendukung intensifikasi usaha budidaya dalam rangka memenuhi permintaan pasar. Budidaya ikan secara intensif dapat menyebabkan menurunnya kadar oksigen air, sedangkan limbah yang dihasilkan tinggi. Upaya untuk mengendalikan nitrogen anorganik pada budidaya intensif dapat dilakukan melalui pemberian tepung terigu ke dalam media budidaya. Hal ini akan mendukung proses metabolisme nitrogen oleh mikroba dan akan menghasilkan protein dalam bentuk bakteri sehingga nitrogen anorganik dalam air menjadi berkurang. Protein mikroba yang dihasilkan dapat dimanfaatkan sebagai sumber protein yang efisien bagi ikan. Penelitian ini bertujuan untuk mengetahui pengaruh tingkat kepadatan terhadap produksi benih ikan lele dumbo pada sistem budidaya  dengan pengendalian nitrogen melalui penambahan tepung terigu. Benih ikan lele dumbo (<em>Clarias sp</em>.) umur 12 hari dengan bobot rata-rata 0,046±0,006 gram dan panjang 1,7±0.9 cm dipelihara selama 28 hari dengan kepadatan 400 ekor/m<sup>2</sup>, 800 ekor/m<sup>2</sup>, 1200 ekor/m<sup>2</sup>.  Hasil penelitian menunjukkan bahwa  benih ikan mengalami peningkatan ukuran berat (1,35 gram) dan panjang (5,1 cm). Nilai rata-rata pertumbuhan dan produksi harian masing-masing berkisar 10,47 - 11,48% dan 2,49 - 3,54 gr/hari. Peningkatan kepadatan tidak berpengaruh nyata (p>0,05) terhadap laju pertumbuhan dan produksi harian. Nilai rata-rata pertumbuhan panjang mutlak, kelangsungan hidup dan efisiensi pakan masing-masing berkisar 2,7-3,2 cm, 36,20 - 53,88% dan 147 - 172%. Peningkatan kepadatan diikuti dengan penurunan pertumbuhan panjang (p<0,05), kelangsungan hidup dan efisiensi pakan.</p> <p>Kata kunci: lele dumbo, <em>Clarias</em>, nitrogen, terigu, padat penebaran</p>http://journal.ipb.ac.id/index.php/jai/article/view/3997