Irzal Effendi
Bogor Agricultural University, Department of Aquaculture

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Feeding of Marbled Goby, Oxyeleotris marmorata (Blkr.), Larvae in the Two Weeks of Their Early Life Effendi, Irzal; Sumawidjaja, K.
Jurnal Akuakultur Indonesia Vol 1, No 3 (2002): Jurnal Akuakultur Indonesia
Publisher : Jurnal Akuakultur Indonesia

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Abstract

The experiment was carried out at the Laboratory of Aquaculture System and Technology, Faculty of Fisheries, Institut Pertanian Bogor, Bogor. Factorial arrangement in randomised block design was used in this experiment with two factors: kind of feed and feed density for sand goby, Oxyeleotris marmorata (Blkr.) larvae. There were 3 kinds of feed: rotifer, enriched-rotifer, and egg yolk-premix. Rotifer density of 20, 30, and 40 individuals/ml were maintained troughout the experiment. Egg yolk-premix were given per day in equivalent quantity as those rotifers in the treatment. Larvae of 40 individuals/l were kept in the 250 l plastic tanks, filled with 200 l of aerated ground water for 15 days indoor. Larvae fed rotifer showed better survival and growth rate than those fed egg yolk-premix. Increased rotifer density tended to increase survival and growth rate of larvae. Key words :  marbled goby, Oxyeleotris marmorata, larvae, feeding, rotifers   ABSTRAK Percobaan ini dilakukan di Kolam Percobaan Babakan, Laboratorium Bogor, Bogor, dan dirancang berbentuk factorial dalam rancangan acak kelompok, dengan faktor: (1) jenis pakan dan (2) kepadatan pakan. Jenis pakan dibedakan menjadi: rotifera, rotifera-diperkaya, dan kuning telur-premiks, sedangkan kepadatan rotifera dibedakan menjadi : 20,30, dan 40 individu/ml, dipertahankan setiap hari. Kuning telur-premiks diberikan kepada larva ikan betutu, Oxyeleotris marmorata setiap hari yang setara dengan bobot rotifera setiap perlakuan, berdasarkan bobot kering keduanya. Larva sebanyak 40 ekor/l dipelihara dalam tangki plastik bervolume 250 l yang diisi air 200 l selama 15 hari dalam ruangan. Larva yang diberi rotifera cenderung memiliki kelangsungan hidup dan pertumbuhan lebih besar daripada kuning telur-premiks. Kepadatan rotifera yang semakin tinggi cenderung dapat meningkatkan kelangsungan hidup dan pertumbuhan larva. Kata kunci :  ikan betutu, Oxyeleotris marmorata, larva, pemberian pakan, rotifera
Control of Natural Food with Diazinon for Growth and Survival of Marbled Goby, Oxyeleotris marmorata (Bleeker) Nasir, M.; Sumawidjaja, K.; Sumawidjaja, K.; Effendi, Irzal
Jurnal Akuakultur Indonesia Vol 3, No 2 (2004): Jurnal Akuakultur Indonesia
Publisher : Jurnal Akuakultur Indonesia

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Abstract

Dua percobaan telah dilakukan, yaitu tanpa dan dengan larva ikan. Percobaan pertama, yang menggunakan 3 konsentrasi diazinon 0. 2 dan 4 ppm dan 3 ulangan, mempelajari pertumbuhan rotifera, cladocera dan copepoda. Percobaan kedua mempunyai 2 perlakuan, yaitu diazinon 0 dan 4 ppm (yang terbaik dari percobaan pertama) serta 4 ulangan untuk mengevaluasi: 1) ketersediaan, pemanfaatan dan susunan jasad-jasad pakan, 2) pertumbuhan dan kelangsungan hidup larva, serta 3) perkembangan larva ikan. Larva yang berumur satu hari ditebar pada saat kelimpahan rotifera tertinggi di hapa dengan kepadatan 40 larva/1 atau 3.200 larva/hapa. Hapa (mesh 0,8 mm) yang berukuran 50x40x50 cm ditempatkan dalam kolam-kolam beton yang berukuran 4,25x2,00x 0,65 m. Kolam-kolam ini mula-mula dikeringkan selama 2 hari, dipupuk dengan kotoran ayam 1.000 g/m3 dan diisi air setinggi 50 cm. Keesokan harinya kolam dipupuk dengan urea dan tripel superfosfat masing-masing 20 dan 30 g/m3. Dua hari kemudian air diberi diazinon sesuai perlakuan. Hasil percobaan pertama menunjukkan bahwa diazinon meningkatkan ketersediaan rotifera. Populasi rotifera tertinggi dicapai di kolam yang mendapat diazinon 4 ppm. Percobaan kedua memberikan laju pertumbuhan harian dan kelangsungan hidup larva ikan serta ketersediaan dan pemanfaatan rotifer tertinggi pada pemberian diazinon 4 ppm. Kata kunci: Pakan alami, larva. Oxyeleotris marmorata, diazinon. kelangsungan hidup, pertumbuhan   ABSTRACT Two experiments were conducted, without and with fish larvae. The first experiment, utilizing 3 concentrations of diazinon, i.e. 0, 2 and 4 ppm and 3 replications, evaluated the growth of rotifers, cladocerans and copepods. The second experiment had 2 treatments, i.e. 0 and 4 ppm diazinon and 4 replications evaluated: 1) the availability, utilization and composition of food organisms, 2) the growth and survival rates offish larvae, and 3) the development of larvae. One-day old larvae were stocked at times of highest rotifer concentrations in hapas at 40 larvae/1 or 3,200 larvae/hapa. Hapas (0,8 mm mesh) of 50x40x50 cm were placed in concrete ponds of 4.25x2.00x0,65 m. The ponds were dried for 2 days, fertilized with chicken manure 1.000 g/m3 and filled with water up to 50 cm deep. Next day, the ponds were fertilized with urea and triple superphosphate 20 and 30 g/m3 respectively. Two days later, the water was treated with diazinon according to treatments. The results of the first experiment showed that diazinon increased the availability of rotifers. The highest rotifer populations were obtained in ponds receiving 4 ppm diazinon. The second experiment gave highest daily growth and survival rates of fish larvae, te availability and utilization of rotifers at 4 ppm diazinon. Key words: Natural foods, larvae, Oxyeleotris marmorata, diazinon, survival, growth.
Gonad Maturation of Clown Loach (Botia macracanthus) in Pond Effendi, Irzal; Prasetya, T.; Sudrajat, Agus Oman; Suhenda, N.; Sumawidjaja, K.
Jurnal Akuakultur Indonesia Vol 2, No 2 (2003): Jurnal Akuakultur Indonesia
Publisher : Jurnal Akuakultur Indonesia

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Abstract

The objective of this research is to know the gonad maturation of clown loach {Botia macracanthus) reared in pond. Two groups contain 4 female broodstock; I) carried and II) non-carried egg broodstock were reared in two separated hapas which placed in pond. Each hapa was also stocked nine males. The fish were fed pellet (32,33% protein) 10% biomass, daily in three times. After 20 days, the broodstocks were implanted by LHRH-a 100 u.g/kg of body weight. In the group I, diameter of egg in gonad were developed from 1,028 mm at the beginning of implantation to 1,071 and 1,106 mm at day of 15 and 30 after implantation respectively. In the group II, only one female has developed her gonad successfully. The egg was developed to 0,937 and 1,026 mm after 15 and 30 day implantation respectively. Key words : Gonad maturation, clown loach, Botia macracanthus, pond   ABSTRAK Penelitian ini bertujuan untuk mengetahui pematangan gonad induk ikan botia (Botia macracanthus) yang dipelihara di kolam. Dua kelompok induk betina; I) sudah mengandung telur dan II) belum mengandung telur masing-masing sebanyak 4 ekor dipelihara masing-masing dalam 2 hapa. Ke dalam setiap hapa juga ditempatkan induk jantan sebanyak 9 ekor. Induk diberi pakan berupa pelet (protein, 32,33%) sebanyak 10% dari bobot biomasa per hari, 3 kali sehari, dan diberi LHRH-a dengan dosis 100 ng/kg bobot tubuh secara implantasi pada hari ke 20 pemeliharaan. Induk dalam kelompok pertama telurnya berkembang dari rata-rata 1,028 pada saat pemberian LHRH-a menjadi rata-rata 1,071 dan 1,106 mm masing-masing pada hari ke 15 dan 30 setelah pemberian. Pada kelompok kedua hanya satu ekor induk yang berkembang gonadnya setelah diberi LHRH-a. telur induk ikan tersebut berkembang dari 0,937 menjadi 1,026 mm masing pada hari ke 15 dan 30 setelah implantasi. Kata kunci : Pematangan gonad, ikan botia, Botia macracanthus, kolam
Parasites infestation on juvenile tiger grouper (Epinephelus fuscoguttatus) nursed in net cage at Sea Farming Instalation Kepulauan Seribu, Jakarta Hadiroseyani, Yani; Effendi, Irzal; Rahayu, Agnis Murti; Arianty, Heni Sela
Jurnal Akuakultur Indonesia Vol 9, No 2 (2010): Jurnal Akuakultur Indonesia
Publisher : Jurnal Akuakultur Indonesia

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Abstract

This study was aimed to identify fauna parasite of juvenile tiger grouper (Epinephelus fuscoguttatus) on the two locations of floating net at Floating Net Sea Farming Center, Pulau Seribu Jakarta. A total of five tiger grouper fry from each location, checked every two weeks during the nursery period in August-September 2008 and June-August 2009. Parasites of young tiger grouper found were protozoa (Trichodina and myxosporea), monogenea Diplectanum, metaserkaria digenea, and isopods Alitropus. Diplectanum infestation was dominant with prevalence reached 100% and the average intensity of 2,87-72,8. Fish nursed in the Perairan Pulau Semak Daun was more susceptible compared to the fish nursed in Pulau Karang Congkak. Keywords: tiger grouper, parasite, infestation, Seribu Island. ABSTRAKPenelitian ini bertujuan untuk mengidentifikasi penyakit yang menyerang benih kerapu macan pada masa pendederan dalam karamba jaring apung di dua lokasi Karamba Jaring Apung Balai Sea Farming, Kepulauan Seribu, yaitu di Perairan Pulau Semak Daun dan Perairan Pulau Karang Congkak. Sebanyak 5 ekor benih kerapu macan dari masing-masing lokasi, diperiksa setiap minggu selama dua periode pendederan pada bulan Agustus-September 2008 dan bulan Juni-Agustus 2009. Fauna parasit benih kerapu macan pada masa pendederan dalam jaring apung tersebut meliputi protozoa (Trichodina dan myxosporea), monogenea Diplectanum, metaserkaria digenea, dan isopoda Alitropus. Diplectanum merupakan parasit yang mendominasi dengan prevalensi mencapai 100% dan intensitas rerata 2.87–72,8. Pada Perairan Pulau Semak Daun lebih banyak ditemukan jenis parasit dengan prevalensi dan intensitas yang cukup tinggi dibandingkan dengan Perairan Pulau Karang Congkak.Kata kunci: ikan kerapu macan, parasit, infestasi, Pulau Seribu.
Rearing of Milkfish, Chanos Chanos, in Net Cages at Sea at Various Stocking Densities Sumawidjaja, Kusman; Yusdiana, T.; Effendi, Irzal; Dharmadi, .
Jurnal Akuakultur Indonesia Vol 1, No 2 (2002): Jurnal Akuakultur Indonesia
Publisher : Jurnal Akuakultur Indonesia

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Abstract

Stocking rate of milkfish, Chanos chanos, from 75 to 225 fish/m3  or from 1,33 to 3,98 kg/m3  did not affect the growth rate, survival rate, feeding efficiency, and final length and weight of fish, each at 2,32%/day, 81,8%, 63,8%, and 185,2 mm and 64,0 g respectively. Final biomass (Y) increased from 3,66 to 12,05 kg/m3 with the increase of stocking rate (X) with Y = 0,056 X-0,45 (p
Breeding of Sand Goby, Oxyeleotris marmorata (Blkr.), Broodstock in Earthen and Concrete Pond Sumawidjaja, Kusman; Effendi, Irzal; Enywati, .
Jurnal Akuakultur Indonesia Vol 1, No 1 (2002): Jurnal Akuakultur Indonesia
Publisher : Jurnal Akuakultur Indonesia

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Abstract

Anexperiment to asses breeding performance of sand goby was conducted in earthen and concrete pond.  Broodstock (125 - 500 g per fish) of similar levels at maturing were fed trash fish 7% of biomass everyday.  In the rainy season, sand goby, Oxyeleotris marmorata (Blkr.), spawned 31 and 30 times per month producing an average of 38.300 and 36.855 eggs per nest, respectively.  In the dry sesason, howeve only fish in earthen ond bred 36 times per month with an average of 39.170 eggs per nest. Key words :  breeding, sand goby fish, Oxyeleotris marmorata   ABSTRAK Percobaan ini bertujuan untuk mengetahui pemijahan ikan betutu di kolain tanah dan kolarn beton.  Ikan betutu (125 - 500 g per ekor) dipelihara selarna musim hujan dan musim kemarau dan diberi makan ikan teri sebanyak 7% setiap hari.  Pada musim penghujan, pada kolam tanah dan kolam beton terjadi masingmasing 31 dan 30 kali pemijahan ikan betutu, Oxyeleotris marmorata (Blkr.), per sarang.  Pada musim kemarau, hanya ikan betutu yang di kolam tanah saja yang memijah sebanyak 36 kali dengan rata-rata 39.170 butir per tahun per sarang. Kata kunci :  pemijahan, ikan betutu, Oxyeleotris marmorata
Feeding with Artificial Feed on Sand Goby, Oxyeleotris marmorata (Blkr.), Fry Sudrajat, Agus Oman; Effendi, Irzal
Jurnal Akuakultur Indonesia Vol 1, No 3 (2002): Jurnal Akuakultur Indonesia
Publisher : Jurnal Akuakultur Indonesia

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Abstract

The influence of feed shape and protein resource of artificial feed on the growth and survival rate of sand goby, Oxyeleotris marmorata (Blkr.), fry were evaluated in this experiment. This experiment purposed to determine growth rate, survival rate, feeding efficiency, protein retention, lypid retention and look for the suitable artificial feed for sand goby. This experiment was carried out at the Laboratory of Aquaculture System and Technology, Department of Aquaculture, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University in Bogor. Factorial design was used in this experiment with two factors: feed shape and protein resource. There were two kinds of feed shape: dry pellet and moist pellet. Protein resource consisted: fish, squid, and shrimp. The sand goby juveniles were kept in aquarium 60x30x40 cm was filled 40 litre of aerated. The fish were fed of 7% (dry weight based) of body weight in three time of feeding (10:00, 14:00, 18:00 WIB), 30, 30, 40% total feed/day respectively. The amount of feed was adjusted every 7 days with sampling. The juveniles feeding with shrimp-moist showed better survival rate, growth rate, feeding efficiency, protein retention, lypid retention than those fed shrimp-dry, squid-dry, squid-moist, fish-dry, and fish-moist. Dry pellet and moist pellet can be used for sand goby feeding. The artificial feed for sand goby juvenile suggested contain attractant and had highly water stability. Shrimp and squid can be used as main protein resources in artificial feed for sand goby. Key Word :  Feeding, artificial feed, sand goby, Oxyeleotris  marmorata, fry.   ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh bentuk pakan dan sumber protein dari pakan buatan terhadap pertumbuhan dan kelangsungan hidup ikan betutu, Oxyeleotris marmorata (Blkr.). Rancangan faktorial dengan 2 faktor, bentuk pakan (pelet basah dan pelet kering) dan sumber protein (ikan, cumi dan udang) digunakan dalam penelitian ini. Ikan diberi pakan 7% bobot badan basah yang diberikan dalam 3 kali per hari. Ikan yang diberi pakan dengan kombinasi bentuk pelet basah dan sumber protein udang (pelet basah-udang) menunjukkan kelangsungan hidup, pertumbuhan, efisiensi pemberian pakan dan retensi protein terbaik dari perlakuan lainnya. Udang dan cumi dapat digunakan sebagai sumber protein utama dalam pakan buatan untuk ikan betutu. Pakan buatan untuk benih ikan betutu disarankan mengandung atraktan dan memiliki stabilitas dalam air yang tinggi. Kata kunci :  Pemberian pakan, pakan buatan, ikan betutu, Oxyeleotris marmorata, benih.
Enhancing the Survival Rate of Sand Goby, Oxyeleotris marmorata (Blkr.), Larvae with Antibiotics Effendi, Irzal; Hadiroseyani, Yani
Jurnal Akuakultur Indonesia Vol 1, No 1 (2002): Jurnal Akuakultur Indonesia
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Abstract

Penicillin G and streptomycin sulphate were administered for 18 days of rearing of sand goby larvae. 7wo-days larvae (3,37-3,41 mm) were reared in 160 1 aerated water at stocking density of 50 fish/1.  Until 17 days of rearing period, the larvae were fed plankton (50-300 gm) at stocking density of 20-30 individual/mi, and at day 13-I8, were fed Artemia sp. (1-2 individual/ml).  During first seven days, penicillin G and streptomycin sulphate (1.000 IU/1 and 10 mg/1, respectively) were applied daily, and there after once every three days.  The fry which reared in media containing antibiotics exhibited higher survival rate (28,09%, compared to 3,3 1 %), than the control, whereas their growth was similar (1,09-1,53 mm). Key words :  Antibiotics, survival rate, sand goby fish, Oxyeleotris marmorata   ABSTRAK Antibiotik penisilin G dan streptomisin sulfat telah digunakan dalam pemeliharaan larva ikan betutu selama 18 hari.  Larva umur 2 hari (3,37-3,41 mm) dipelihara dalain tangki berisi air sebanyak 160 1 yang diaerasi halus, dengan kepadatan 50 ekor/1.  Antibiotik diberikan kepada media pemeliharaan larva setiap hari pada 7 hari pertarna pemeliharaan dan selanjutnya setiap 3 hari sekaii hingga akhir pemeliharaan, sebanyak 1.000 IU/1 dan 10 mg/1 masing-masing untuk penisilin G dan streptomisin sulfat.  Pada hari pertama hingga ke- 1 7, larva diberi makan plankton berukuran 50-300 gm sebanyak 20-30 individu/ml, hari ke- 13 sampai 18 diberi Artemia sp. sebanyak 1-2 ekor/ml.  Larva yang dipelihara pada media berantibiotik memiliki kelangsungan hidup (28,09%) lebih tinggi dibandingkan dengan tanpa antibiotik (3,31%), sedangkan pertumbuhan panjang mutlaknya sama yaitu 1,09-1,53 mm. Kata kunci :  Antibiotik, kelangsungan hidup, ikan betutu, Oxyeleotris marmorata
Survival Rate of Sand Goby, Oxyeleotris marmorata (Blkr.), Fed by Carrot-Enriched Rotifers, Brack ion us sp. Effendi, Irzal; Jusadi, Dedi; Nirwana, A.I.
Jurnal Akuakultur Indonesia Vol 3, No 1 (2004): Jurnal Akuakultur Indonesia
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The aim of this experiment is to know survival rate of sand goby larvae were fed carrot-enriched rotifers. Two days old larvae (3,56-3,57 mm body length) were reared in conical fiberglass tanks filled 100 1 of water with stocking density 23 fish per 1 (2.300 fish per tank). The tanks were placed in transparent-roofed room and the water was aerated softly by 3 unit of aeration stones. Larvae were fed carrot-enriched rotifers and without enrichment as a control. Stocking density of rotifers was 40 individual per ml or 4x106 individual per tank and it maintained for 10 days of rearing. Rotifers were incubated in media which contained (60 g per 1) sieved carrot (100 urn) for 2,5 hours before fed to the larvae. The survival rate of sand goby larvae, which fed by carrot-enriched rotifers (29,9%), was higher (p
Perancangan Model Pertanian Terpadu Tanaman-Ternak dan Tanaman-Ikan di Perkampungan Teknologi Telo, Riau ,, Suwarto; Aryanto, Agustinus Tri; Effendi, Irzal
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 43, No 2 (2015): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy

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ABSTRACTThe Telo Technology Village of Bangkinang Seberang, Kampar, Riau was built on reclaimed land of C-mining excavation. On this land will be settled a number of farmer households pursue an area of 2,000 m2 in each. They should be able to maximize the land use to meet family needs adequately. In order to develop integrated farming system composed of crop, livestock, and fish productions, data were collected through interviews and literature. This study was conducted from February to July 2013. Models of integrated farming were designed and evaluated for its feasibility ecologically and economically using dynamic model Stella 9.2. Based on the models, integrated farming of spinach-kangkong-chili, cattle-laying ducks and Thai catfish-Tilapia fish will be able to provide an adequate income. Therefore area of 2,000 m2 is feasible for integrated farming, settlements and other households activities.Keywords: high mapping layer, LEISA, nutrient cycle