KANIBALISME PADA YUWANA IKAN KERAPU MACAN (Epinephelus fuscoguttatus) DALAM KONDISI PEMELIHARAAN SECARA TERKONTROL

2006 ◽  
Vol 1 (2) ◽  
pp. 245
Author(s):  
Eri Setiadi
Keyword(s):  
Mass Production ◽  
Culture System ◽  
Economic Value ◽  
Size Variation ◽  
Intensive Culture ◽  
Epinephelus Fuscoguttatus ◽  
Tiger Grouper ◽  
Set Up ◽  
Starvation Experiment

Ikan kerapu macan (Epinephelus fuscoguttatus) merupakan ikan yang memiliki nilai ekonomi penting sebagai komoditas ekspor dan telah berhasil dibudidayakan di Indonesia. Kendala yang dihadapi dalam budi daya ikan tersebut yaitu masih tingginya tingkat kanibalisme pada pemeliharaan secara intensif. Tujuan penelitian ini adalah untuk mengetahui frekuensi gigitan, menelan, dan mortalitas pada pemeliharaan yuwana ikan kerapu macan dan upaya pengendaliannya. Penelitian ini terdiri atas dua tahap, yaitu penelitian variasi ukuran yang dipuasakan (Penelitian I) dan variasi ukuran dengan kepadatan jembret yang berbeda (Penelitian II) terhadap terjadinya kanibalisme, seperti frekuensi gigitan, menelan, dan mortalitas telah dilakukan. Ukuran yuwana kerapu macan yang digunakan sebagai hewan uji terdiri atas tiga ukuran, yaitu ukuran kecil, sedang, dan besar. Hasil penelitian I menunjukkan bahwa ada perbedaan (P<0,0001) di antara perlakuan terhadap frekuensi gigitan, menelan, dan mortalitas. Penelitian II menunjukkan juga adanya perbedaan (P<0,0006) di antara perlakuan terhadap frekuensi gigitan, menelan dan mortalitas. Kepadatan jembret 1.000 individu/L dapat mengurangi kanibalisme.Tiger grouper, E. fusoguttatus is one of the marine finfish species have a high economic value as an export commodity in Indonesia. Mass production of this species has largely been successful in Indonesia. However, cannibalism is a main problem can be reduced mass production during in an intensive culture system. The aim of this experiment is to examine frequency of bitting and swallowing, mortality, and its control. This experiment was focused on size variation and mysid density that affect on frequency of bitting, frequency of swallowing, and mortality. The fry of tiger grouper used in this experiment was consisted of three sizes (small, medium, and big). Two kinds of experiments were set up namely size variation and starvation (experiment I) and size variation and mysid density (experiment II). The result showed that size variation indicated that significantly different (P<0.0001) in frequency of bitting and swallowing, and mortality and also mysid density could affect the frequency of biting and swallowing, and mortality (P<0.0006) among the treatments. Mysid density (1,000 individu/L) could be reduced the cannibalism.

scholarly journals SUBTITUSI TEPUNG IKAN DENGAN TEPUNG KEONG MAS (Pomacea sp.) DALAM PAKAN PEMBESARAN IKAN KERAPU MACAN (Epinephelus fuscoguttatus)

2016 ◽  
Vol 1 (2) ◽  
pp. 161
Author(s):  
Usman Usman ◽  
Rachman Syah ◽  
Kamaruddin Kamaruddin
Keyword(s):  
Feed Efficiency ◽  
Fish Meal ◽  
Control Diet ◽  
Fish Feed ◽  
Protein Retention ◽  
Epinephelus Fuscoguttatus ◽  
Tiger Grouper ◽  
Isocaloric Diets ◽  
Set Up ◽  
Net Cages

Penelitian ini dilakukan untuk mendapatkan informasi tentang dosis optimum subtitusi tepung ikan dengan tepung keong mas dalam pakan pembesaran ikan kerapu macan. Ikan uji yang digunakan berupa gelondongan ikan kerapu macan berukuran bobot rata-rata 27,1 ± 1,38 g ditebar dalam keramba jaring apung ukuran 1 x 1 x 2 m3 dengan kepadatan 16 ekor/keramba. Perlakuan yang dicobakan adalah dosis tepung keong mas (GSM) dalam pakan yaitu: 0% (GSM0), 10% (GSM10), 20% (GSM20), 30% (GSM30), dan 40% (GSM40) dengan menurunkan kadar tepung ikan pakan. Unit penelitian diset dengan rancangan acak lengkap. Selama pemeliharaan, ikan diberi pakan uji secara satiasi selama 140 hari. Hasil penelitian menunjukkan bahwa ikan yang diberi pakan dengan kandungan tepung keong mas 0%—30% memiliki nilai laju pertumbuhan spesifik, pertambahan bobot, efisiensi pakan, efisiensi protein, dan retensi protein yang relatif sama (P>0,05), namun ikan yang diberi pakan dengan kandungan tepung keong mas sebanyak 40% memiliki nilai peubah tersebut yang berbeda nyata (P<0,05) lebih rendah dibandingkan yang diberi pakan dengan kandungan tepung keong mas 0%—10%. Konsumsi pakan dan sintasan ikan relatif sama di antara perlakuan (P>0,05). Berdasarkan hasil penelitian ini, maka tepung keong mas dapat digunakan hingga 30% dalam formulasi pakan ikan kerapu macan.This research was conducted to examine the effects of partially substitution of fish meal (FM) in the diets with golden snail meal (GSM) on growth performance of tiger grouper, Epinephelus fuscoguttatus. Fifteen net cages of 1 x 1 x 2 m3, each containing 16 tiger groupers with average initial weight of 27.1 ± 1.38 g, were set up randomly in seawater. Five isoprotein and isocaloric diets were formulated to contain 43.5% FM without GSM as control diet (GSM0); 10% GSM + 34.2% FM (GSM10); 20% GSM + 24.9% FM (GSM20), 30% GSM + 15.6% FM (GSM30); and 40% GSM + 6.3% FM (GSM40). The fish were fed twice daily to satiation for 140 days. The fish fed the diet containing 0%—30% GSM had not significantly different (P>0.05) specific growth rate, weight gain, feed efficiency, protein efficiency, and protein retention. However the fish fed the diet containing 40%GSM had significantly lower (P>0.05) value of the variables compared to the fish feed the diet containing 0%—10% GSM. Total feed intake and survival rate did not differ significantly (P>0.05) among treatments. This result suggests that GSM could be only used up to 30% to replace fish meal in the tiger grouper diets.

scholarly journals Phytoplankton performance in supporting primary productivity in the intensive culture system of vannamei shrimp

2021 ◽  
Vol 744 (1) ◽  
pp. 012054
Author(s):  
N T M Pratiwi ◽  
B Widigdo ◽  
A Yasin ◽  
J Soffyan ◽  
A Iswantari ◽  
...  
Keyword(s):  
Primary Productivity ◽  
Culture System ◽  
Intensive Culture

scholarly journals ANALISIS KESESUAIAN PERAIRAN UNTUK BUDIDAYA IKAN KERAPU MACAN (Epinephelus fuscoguttatu) DI PERAIRAN PULAU TEGAL KECAMATAN TELUK PANDAN KABUPATEN PESAWARAN

2018 ◽  
Vol 6 (2) ◽  
pp. 705 ◽  
Author(s):  
Glenn Valentino ◽  
Abdullah Aman Damai ◽  
Herman Yulianto
Keyword(s):  
Water Quality ◽  
Secondary Data ◽  
Fish Farming ◽  
Primary Data ◽  
Marine Aquaculture ◽  
Quality Of Waters ◽  
Epinephelus Fuscoguttatus ◽  
Tiger Grouper ◽  
Physical And Chemical

Tiger grouper is a marine aquaculture commodities that has good prospects to be developed. One of the areas that could potentially be used as a place of tiger grouper fish farming is the Tegal Island, Pesawaran. The purpose of this research was to analyze the level of water quality for fish farming tiger grouper (Epinephelus fuscoguttatus). This research was carried out in March-May 2017 descriptive analytic nature by doing the observations on the quality of waters which include physical and chemical parameters. The data that used in this research sourced from primary data about the suitability waters of the island while the secondary data is form in research location maps. There were 4 sampling stations which determined with global positioning system (GPS). The results showed that the water quality which is owned by the island's waters on station 1, 2, 3 and 4 were in the quite appropriate category for the cultivation of tiger grouper.

scholarly journals Enhancing Ecoefficiency in Shrimp Farming through Interconnected Ponds

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Ramón Héctor Barraza-Guardado ◽  
José Alfredo Arreola-Lizárraga ◽  
Anselmo Miranda-Baeza ◽  
Manuel Juárez-García ◽  
Antonio Juvera-Hoyos ◽  
...  
Keyword(s):  
Culture System ◽  
Water Exchange ◽  
Nutrient Recycling ◽  
Traditional Culture ◽  
Shrimp Farming ◽  
Nitrogen Compounds ◽  
Intensive Culture ◽  
Production Parameters ◽  
Daily Water ◽  
Interconnected Ponds

The future development of shrimp farming needs to improve its ecoefficiency. The purpose of this study was to evaluate water quality, flows, and nitrogen balance and production parameters on a farm with interconnected pond design to improve the efficiency of the semi-intensive culture ofLitopenaeus vannameiponds. The study was conducted in 21 commercial culture ponds during 180 days at densities of 30–35 ind m−2and daily water exchange <2%. Our study provides evidence that by interconnecting ponds nutrient recycling is favored by promoting the growth of primary producers of the pond as chlorophylla. Based on the mass balance and flow of nutrients this culture system reduces the flow of solid, particulate organic matter, and nitrogen compounds to the environment and significantly increases the efficiency of water (5 to 6.5 m3 kg−1cycle−1), when compared with traditional culture systems. With this culture system it is possible to recover up to 34% of the total nitrogen entering the system, with production in excess of 4,000 kg ha−1shrimp. We believe that the production system with interconnected ponds is a technically feasible model to improve ecoefficiency production of shrimp farming.

Hybridization of tiger grouper (Epinephelus fuscoguttatus ♀) x giant grouper (Epinephelus lanceolatus ♂) using cryopreserved sperm

Cryobiology ◽  
2020 ◽  
Vol 95 ◽  
pp. 84-89
Author(s):  
Bin Fan ◽  
Sen Yang ◽  
Le Wang ◽  
Xinghan Chen ◽  
Xiaochun Liu ◽  
...  
Keyword(s):  
Epinephelus Fuscoguttatus ◽  
Tiger Grouper ◽  
Cryopreserved Sperm

scholarly journals Effects of Ascorbic Acid and β-1,3-Glucan on Survival, Physiological Response and Flesh Quality of Cultured Tiger Grouper (Epinephelus fuscoguttatus) during Simulated Transport in Water

Biology ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 37 ◽  
Author(s):  
Bo Wu ◽  
Qi Wang ◽  
Jie Cao ◽  
Jun Mei ◽  
Jing Xie
Keyword(s):  
Ascorbic Acid ◽  
Survival Rate ◽  
Stress Response ◽  
Heat Shock ◽  
Heat Shock Protein ◽  
Heat Shock Protein 70 ◽  
Flesh Quality ◽  
Epinephelus Fuscoguttatus ◽  
Tiger Grouper

Transport in water is the most common method for achieving high survival rates when transporting cultured fish in China; yet, transport success relies on proper water quality and conditions. This research was designed to explore the effects of ascorbic acid and β-1,3-glucan on survival, physiological responses, and flesh quality of farmed tiger grouper (Epinephelus fuscoguttatus) during simulated transport. The transport water temperature for live tiger grouper was 15 °C, which had the highest survival rate, the lowest stress response, and metabolic rate, and this will reduce the susceptibility to diseases. It is stated that β-1,3-glucan influences the changes of cortisol content, heat shock protein 70, IL-1β, and IgM transcription levels during simulated transport. Rather than using ascorbic acid alone (the A-group), β-1,3-glucan (3.2 mg/L) in the presence of ascorbic acid (25 mg/L) can effectively reduce the increase of transport-induced serum cortisol content, heat shock protein 70, and IL-1β, but stimulated IgM. 25 mg/L ascorbic acid and 3.2 mg/L β-1,3-glucan had no obvious effect on the nutritional indexes and flavor of live tiger grouper; however, these can effectively reduce the stress response, improve the innate immune activity, and ensure a higher survival rate.

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