Latifa Fekri
Sekolah Pascasarjana, Program Studi Manajemen Sumberdaya Perairan, Institut Pertanian Bogor Kampus IPB Dramaga Bogor 16680

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THE EFFECT OF TEMPERATURE ON THE PHYSIOLOGICAL CONDITION AND GROWTH PERFORMANCE OF FRESHWATER EEL ELVER ANGUILLA BICOLOR BICOLOR MCCLELLAND, 1844 Fekri, Latifa; Affandi, Ridwan; Rahardjo, Muhammad Fajar; Budiardi, Tatag; Simanjuntak, Charles Parningotan Haratua; Fauzan, Tezza; Indrayani, Indrayani
Jurnal Akuakultur Indonesia Vol. 17 No. 2 (2018): Jurnal Akuakultur Indonesia
Publisher : ISSA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3406.807 KB) | DOI: 10.19027/jai.17.2.181-190

Abstract

ABSTRACT This study aimed to analyze the effect of water temperature on the physiological condition and growth performance of freshwater eel elver Anguilla bicolor bicolor (McClelland, 1844). This study was conducted in March 2017 at the Physiology Laboratory of Aquatic Animal, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University. The study used a completely randomized design with five different levels of temperature (22°C, 24°C, 26°C, 28°C, and 30°C) as treatments with two replications. The size of elver was 2?3 g. Fish were fed with 1 mm pellet containing 45% of protein. The feeding level was 7 % of fish biomass and the feeding frequency was two times a day. The results showed that temperatures range from 24?30°C could be used for freshwater eel elver rearing and 28?30°Cwere the best temperatures to support survival and growth performance of eel elver. A temperature of 24°C was the best temperature that could reduce the metabolism rate and did not cause stress on the elver. Keywords: elver, physiological conditions, growth performance, metabolism, temperature  ABSTRAK Penelitian dengan tujuan menganalisis pengaruh suhu terhadap kondisi fisiologis dan kinerja pertumbuhan elver ikan sidat (Anguilla bicolor bicolor McClelland, 1844) telah dilakukan pada bulan Maret 2017 di Laboratorium Fisiologi Hewan Air FPIK IPB. Penelitian menggunakan rancangan acak lengkap dengan lima perlakuan suhu berbeda (22°C, 24°C, 26°C, 28°C, dan 30°C) dengan masing-masing dua ulangan. Ukuran benih yang digunakan 2?3 g. Pakan yang diberikan berupa pellet berukuran 1 mm dengan kadar protein 45%. Jumlah pakan yang diberikan (FR) adalah 7% dari biomassa ikan dan diberikan dua kali sehari. Hasil penelitian menunjukkan bahwa kisaran suhu 24?30°C dapat digunakan dalam pemeliharaan elver ikan sidat, dan suhu 28?30°C merupakan suhu yang sangat baik untuk mendukung kelangsungan hidup dan pertumbuhan elver ikan sidat. Suhu media 24°C adalah suhu terbaik yang dapat menekan laju metabolisme dengan tidak menyebabkan stres pada elver ikan sidat. Kata kunci: elver, kondisi fisiologis, kinerja pertumbuhan, metabolisme, suhu  
FEEDING RATE OF FRESHWATER EEL ANGUILLA BICOLOR BICOLOR: AT THE BODY WEIGHT OF 1–2 G Fekri, Latifa; Affandi, Ridwan; Budiardi, Tatag
Jurnal Akuakultur Indonesia Vol. 13 No. 1 (2014): Jurnal Akuakultur Indonesia
Publisher : ISSA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2852.205 KB) | DOI: 10.19027/jai.13.21-27

Abstract

ABSTRACT The aim of the research was to determine feed requirement for the maintenance, optimum, and maximum growth of freshwater eel (Anguilla bicolor bicolor) seed (1?2 g body weight). Feed used in this research was KRA feed with 46% protein content, with different feeding level (FR) at 0%, 5%, 10%, and 15% of fish biomass. The experiment was conducted in 30 days. Parameters measured were survival and specific growth (SGR). The results showed that survival of fish in all treatments were 100%, except in fish fed on 15% of biomass (only 96). Fish growth with feeding of 0%, 5%,10%, and 15%, were -1.06%; 0.42%; 0.73%; and 0.19%, respectively. Based on the analysis of the relationship between feeding level and growth, the feed requirement for maintenance, optimum, and maximum growth in 1?2 g freshwater eel seed were 3.3%; 7.0%; and 9.5% of the biomass, respectively. Keywords: eel seed, feed requirement, growth ABSTRAK Penelitian dilakukan dengan tujuan untuk mendapatkan kebutuhan pakan untuk maintenance, dan untuk pertumbuhan optimum serta maksimum benih ikan sidat (Anguilla bicolor bicolor) (bobot tubuh 1?2 g). Pakan yang digunakan pada penelitian ini adalah pakan KRA dengan kadar protein 46%, dengan tingkat pemberian pakan 0%, 5%, 10%, dan 15% dari bobot biomassa ikan. Pemeliharaan berlangsung selama 30 hari. Parameter yang diukur meliputi sintasan (STS) dan laju pertumbuhan spesifik (LPS). Hasil penelitian menunjukkan bahwa STS benih ikan sidat selama pemeliharaan, memiliki nilai yang baik (100%) kecuali pada pemberian pakan 15% (hanya 96%). Laju pertumbuhan benih ikan sidat selama pemeliharaan dengan pemberian pakan 0%, 5%, 10%, dan 15% berturut-turut adalah -1,06%; 0,42%; 0,73%; dan 0,19%. Berdasarkan analisis hubungan antara tingkat pemberian pakan dan laju pertumbuhan spesifik, maka kebutuhan pakan maintenance, pertumbuhan optimum dan maksimum benih ikan sidat berukuran 1?2 g berturut-turut adalah 3,3%; 7%; dan 9,5% dari biomassa. Kata kunci: benih ikan sidat, kebutuhan pakan, pertumbuhan
Pengaruh stunting terhadap kondisi fisiologis benih ikan sidat, Anguilla bicolor bicolor McClelland, 1844 [The effect of stunting to physiological condition of freshwater eel seed, Anguilla bicolor bicolor McClelland, 1844] Fekri, Latifa; Affandi, Ridwan; Budiardi, Tatag
Jurnal Iktiologi Indonesia Vol 15, No 1 (2015): Februari 2015
Publisher : Masyarakat Iktiologi Indonesia (MII )

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v15i1.76

Abstract

Eel is an economically important fish species and the demand for this species is increasing every year. However, stock availability not sustainable because the eel culture totally depends on the wild catches of glass eel (elver). The aim of this study was to examine the effect of stunting to the physiological condition of eel seeds with 1-2 g body weight and 8-12 mm body length. The research was conducted from September 2013 to February 2014 at the Aquatic Animal Physiology Laboratory, Faculty of Fisheries and Marine Science, Bogor Agricultural University. The experiment was arranged in a completely randomized design with three treatments of stunting (i.e. 30, 60, and 90 days) and three replications. Eel seeds were reared in aquarium 60 x 40 x 30 cm3 with a density of 30 fish in each aquarium and fed with commercial pellets of 1.5 mm in size with 46 % protein content. The diets were fed to the fish at a daily rate of 3.3% of the total biomass. Fish were fed twice a day continuously for 30, 60 and 90 days of rearing process. The weight, proximate test and blood analysis of each specimen were checked at the beginning of the experiment and in every 30 days. The results showed that the stunting for one month was the best treatment. In this treatment, the lowest specific growth rate was approaching 0 % (0.1%), coefficient of variation in body weight was < 20 % (19.90%), physiological conditions was normal (not different with control) and survival rate was above 96 %. The treatment of stunting for two and three months showed that the specific growth rate was 0.2 %, coefficient of variation in body weight was > 25% (27.96 % and 30.37 %), physiological conditions was over than the limit for normal conditions, and survival rate was 89% for both treatments. AbstrakSidat adalah ikan ekonomis penting yang memiliki permintaan pasar yang terus meningkat dari tahun ke tahun. Namun, ketersediaan stok ikan sidat tidak berkelanjutan karena budi daya ikan ini masih bergantung kepada benih hasil tangka-pan dari alam. Penelitian ini bertujuan untuk mengkaji pengaruh stunting (penahanan pertumbuhan) terhadap kondisi fisiologis benih ikan sidat ukuran 1-2 g dengan panjang tubuh 8-12 cm. Penelitian dilakukan dari bulan September 2013 hingga Februari 2014 di Laboratorium Fisiologi Hewan Air, FPIK IPB. Penelitian menggunakan rancangan acak leng-kap dengan tiga perlakuan lama stunting (30, 60 dan 90 hari) dan masing-masing dengan tiga ulangan. Ikan dipelihara dalam akuarium ukuran 60 x 40 x 30 cm3 dengan padat tebar 30 ekor per akuarium dan diberi pakan komersial berupa pellet ukuran 1,5 mm dengan kadar protein 46%. Jumlah pakan yang diberi setiap hari sebanyak 3,3 % dari total bio-massa ikan. Ikan diberi pakan dua kali sehari secara kontinu selama 30, 60 dan 90 hari pemeliharaan. Hasil penelitian menunjukkan bahwa stunting selama satu bulan merupakan perlakuan yang terbaik yang ditunjukkan dengan dengan laju pertumbuhan spesifik benih ikan mendekati nol (0,1%), nilai koefisien keragaman bobot <20% (19,90%) dan kondisi fisiologis mendekati normal (tidak berbeda jauh dengan kontrol), serta kelangsungan hidup 96%. Perlakuan lama stunting dua dan tiga bulan menunjukkan bahwa laju pertumbuhan spesifik sebesar 0,2%, nilai koefisien keragaman bobot >25% (27,96% dan 30,37%) dan kondisi fisiologisnya jauh di atas batas normal benih ikan sidat, serta kelangsung-an hidup sebesar 89%.
Growth of stunted elver of the Indonesian shortfin eel Anguilla bicolor McClelland, 1844 rearing in semi-natural media Fekri, Latifa; Affandi, Ridwan; Rahardjo, M. F.; Budiardi, Tatag; Simanjuntak, Charles P. H.
Jurnal Iktiologi Indonesia Vol 19, No 2 (2019): June 2019
Publisher : Masyarakat Iktiologi Indonesia (MII )

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (257.51 KB) | DOI: 10.32491/jii.v19i2.481

Abstract

This study aimed to evaluate the growth of stunted elver Anguilla bicolor from three different periods of stunting process. Prior to experiment, the stunting process of elver was carried out by limiting the feeding rate at 2% of the fish biomass and temperature media with 24 oC for 2, 4, and 6 months period.  The study used a completely randomized design with three different sources of stunted elvers (i.e., A = 2 months; B = 4 months; C = 6 months) as treatments with three replications. Measurement of RNA:DNA ratio, protein content, profile blood description and elver otolith growth was carried out at the beginning and end of rearing process. Post-stunting elvers were reared on artificial media designed according to elver habitat and controlled. Elver was stocked with 15 individuals in the artificial semi-natural media with a temperature of 28 oC and fed with 1 kg media-1 day-1 tubifex worm for three months. The results showed that the compensatory growth of stunted elvers increased two to three times with 100% of survival rate after three months of rearing process. Stunting has a significant effect on treatment B, indicated by the value of weight specific growth rates, RNA : DNA ratio, protein content, blood glucose levels and otolith growth of elvers. This study revealed that the growth performance of stunted elver reared in semi-natural media for four months is better than other treatments.