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ANALISIS FINANSIAL PRODUKSI YUWANA KERAPU MACAN (Epinephelus fuscoguttatus ) DENGAN PAKAN PELET KOMERSIAL DAN IKAN RUCAH DALAM KERAMBA JARING APUNG Sutarmat, Tatam
Jurnal Perikanan Universitas Gadjah Mada Vol 7, No 2 (2005)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.9070

Abstract

This study aimed to evaluate financial analysis of fingerling production of tiger grouper (Epinephelus fuscoguttatus) fed commercial pellet and trash fish. The experiment was carried out in floating net cages located in the Gondol Research Institute for Mariculture Bali. A total of 3,000 humpback grouper juveniles with the average body weight of 12 g and 8 cm of total length, were stocked in six 2x2x2 m cages at stocking densities of 500 fishes/cage. The cages were divided in two groups for two treatments in triplicates. The treatments were feeding with commercial pellet and copper raw trash fish. Results showed that  body weight gain, total length, specific growth rate, were not significant different (P>0.05) between fish fed commercial pellet and trash fish. Feed conversion ratios obtained by commercial pellet and trash fish were 1.43 and 4.53, respectively. Survival rates were significant different (P<0.05) between fish fed commercial pellet and trash fish which were 83.33 and 69.86%, respectively. Nursering for production of tiger grouper fingerling fed either commercial pellet or trash fish in floating net cage were economically feasible. Feeding with commercial pellet gave a higher net profit of Rp 4,486,250.- with the RC ratio of 1.47 and rentability of 47.12%, while feeding with trash fish gave a net profit of Rp 3,212,500.- with the RC ratio of 1.37 and rentability of  37.35%.This study aimed to evaluate financial analysis of fingerling production of tiger grouper (Epinephelus fuscoguttatus) fed commercial pellet and trash fish. The experiment was carried out in floating net cages located in the Gondol Research Institute for Mariculture Bali. A total of 3,000 humpback grouper juveniles with the average body weight of 12 g and 8 cm of total length, were stocked in six 2x2x2 m cages at stocking densities of 500 fishes/cage. The cages were divided in two groups for two treatments in triplicates. The treatments were feeding with commercial pellet and copper raw trash fish. Results showed that  body weight gain, total length, specific growth rate, were not significant different (P>0.05) between fish fed commercial pellet and trash fish. Feed conversion ratios obtained by commercial pellet and trash fish were 1.43 and 4.53, respectively. Survival rates were significant different (P<0.05) between fish fed commercial pellet and trash fish which were 83.33 and 69.86%, respectively. Nursering for production of tiger grouper fingerling fed either commercial pellet or trash fish in floating net cage were economically feasible. Feeding with commercial pellet gave a higher net profit of Rp 4,486,250.- with the RC ratio of 1.47 and rentability of 47.12%, while feeding with trash fish gave a net profit of Rp 3,212,500.- with the RC ratio of 1.37 and rentability of  37.35%.
GROW-OUT OF ABALONE Haliotis squamata IN FLOATING CAGES FED DIFFERENT PROPORTIONS OF SEAWEED AND WITH REDUCTION OF STOCKING DENSITY Giri, I Nyoman Adiasmara; Sutarmat, Tatam; Yudha, Hirmawan Tirta; Rusdi, Ibnu; Susanto, Bambang
Indonesian Aquaculture Journal Vol 9, No 1 (2014): (June 2014)
Publisher : Pusat Penelitian dan Pengembangan Perikanan, Badan Penelitian dan Pengembangan Kelautan da

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (64.904 KB) | DOI: 10.15578/iaj.9.1.2014.15-21

Abstract

Abalone is a herbivore marine animal which feeds on seaweed. Abalone culture has a good prospect in terms of price, market share and simple culture technique. Thus, a study was conducted with the aim of finding out an effective and efficient abalone culture technique in terms of feed use and density. In this study, a 42 cm diameter plastic container with a 22 cm height was used. Three vertically arranged containers were used as the experimental group which were put into a net box and hung onto a raft so that the containers were placed in a 4 m depth below the sea surface. The juvenile of abalones being used came from a hatchery production that has been adapted to cages environment with Gracilaria sp. and Ulva sp. feed. The initial density of abalones was 450 for each container, with the initial weight of 2.6-3.2 g and the 2.5-2.7 cm shell lengths. The abalones were fed with Gracilaria sp. and Ulva sp. seaweeds with different Gracilaria sp./Ulva sp. proportions, i.e. 100/0% (A); 80/20% (B); and 60/40% (C) as the treatments. Each treatment consisted of two replications. After three months of rearing period, densities of abalones were reduced to be 190 for each experimental unit. Weight and shell length of abalones were measured every month by measuring 25 abalone samples from each experimental unit. The result of the experiment showed that the increase in the Ulva sp. proportion in the feed increased the growth of abalones and decreased the feed conversion. Feeding with Gracilaria sp./Ulva sp. proportion of 60%/40% allowed the best growth of abalones. The decrease of abalone density in the experimental unit after three months of rearing also produced an increase in their growth.
PENGGUNAAN PENANDA GENETIK TUMBUH CEPAT UNTUK PRODUKSI CALON INDUK KERAPU SUNU, Plectropomus leopardus DALAM PROGRAM SELEKSI Sembiring, Sari Budi Moria; Haryanti, Haryanti; Suwirya, Ketut; Wardana, Ida Komang; Sutarmat, Tatam; Yudha, Hirmawan Tirta
Jurnal Riset Akuakultur Vol 7, No 1 (2012): (April 2012)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1866.459 KB) | DOI: 10.15578/jra.7.1.2012.1-9

Abstract

Penurunan kualitas benih kerapu seringkali diindikasikan dengan pertumbuhan yang lambat, rentan terhadap infeksi penyakit, dan perubahan lingkungan serta terjadinya abnormalitas. Upaya perbaikan sifat genetik benih kerapu akan memberikan dampak signifikan dalam keberhasilan budidaya. Tujuan penelitian ini adalah untuk memperoleh penanda gen tumbuh cepat pada benih/calon induk kerapu sunu sehingga dapat meningkatkan efisiensi dan efektivitas pemuliaan. Untuk mendapatkan penciri gen tumbuh cepat digunakan metode analisis mikrosatelit (SSR/Simple Sequence Repeats) dengan mengaplikasikan enam set primer (forward dan reverse). Calon induk yang digunakan untuk analisis masing-masing berjumlah 4 ekor ukuran kecil dan 10 ekor ukuran besar. Validasi dan akurasi lokus yang dihasilkan dianalisis lebih lanjut dengan sequencing. Hasil yang diperoleh menunjukkan bahwa penanda gen tumbuh cepat dapat terlihat dari lokus PL-03 dengan alel/fragmen DNA pada berat molekul 370 bp. Tingkat keakuratan penanda gen tersebut pada kelompok ukuran besar mencapai 80%, sedangkan pada kelompok ukuran kecil hanya 30%. Hal ini juga didukung dengan keakuratan prediksi dari hasil sequencing memberikan nilai kemiripan sebesar 99%. Dengan demikian lokus PL-03 dapat digunakan sebagai penanda gen tumbuh cepat pada ikan kerapu sunu dalam mempercepat seleksi calon induk.
ANALISIS KERAGAAN PERTUMBUHAN BENIH KERAPU HIBRIDA HASIL HIBRIDISASI KERAPU MACAN (Epinephelus fuscoguttatus) DENGAN KERAPU KERTANG (Epinephelus lanceolatus) DAN KERAPU BATIK (Epinephelus microdon) Sutarmat, Tatam; Yudha, Hirmawan Tirta
Jurnal Riset Akuakultur Vol 8, No 3 (2013): (Desember 2013)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1219.432 KB) | DOI: 10.15578/jra.8.3.2013.363-372

Abstract

Analisis keragaan pertumbuhan benih ikan kerapu terdiri atas panjang, bobot, laju dan koefisien pertumbuhan, sintasan, dan faktor kondisi; merupakan aspek biologi yang penting diketahui dari kandidat ikan budidaya. Penelitian ini bertujuan untuk mengetahui hubungan panjang bobot, pertumbuhan, sintasan, konversi pakan, serta faktor kondisi benih ikan kerapu hibrida hasil hibridisasi kerapu macan (Epinephelus fuscoguttatus) dengan kerapu kertang dan kerapu batik (Epinephelus microdon). Benih hibrida yang digunakan terdiri atas kerapu hibrida cantang (kerapu macan x kerapu kertang ), kerapu hibrida cantik (kerapu macan x kerapu batik ), serta kerapu macan (kerapu macan x kerapu macan ) sebagai kontrol. Dengan ukuran panjang dan bobot awal masing-masing antara 10-12 cm dan 22-35 g/ekor. Benih dipelihara dalam sembilan buah jaring ukuran 2 m x 2 m x 2 m di keramba jaring apung (KJA) dengan padat penebaran benih uji sebanyak 250 ekor/jaring. Hasil akhir penelitian menunjukkan bahwa terdapat korelasi positif antara panjang dengan bobot pada kerapu hibrida cantang, cantik maupun kerapu macan dengan nilai koefisien korelasi masing-masing adalah 0,933; 0,884; dan 0,787. Pertumbuhan dari ketiga benih ikan kerapu bersifat allometri negatif, dengan nilai b 2,533; 2,896; dan 2,546. Pada kerapu hibrida cantang, laju pertumbuhan dan koefisien pertumbuhannya lebih besar dibandingkan dengan benih kerapu yang lainnya. Hasil perkawinan silang juga berpengaruh sangat nyata terhadap konversi pakan, serta sintasan ikan yang dihasilkan. Faktor kondisi ikan kerapu hibrida cantang adalah 2,80; sedangkan pada kerapu hibrid cantik dan kerapu macan masing-masing adalah 2,12 dan 2,10.
PEMATANGAN GONAD DAN PEMIJAHAN INDUK IKAN NAPOLEON (Cheilinus undulatus) DENGAN PERBANDINGAN SUMBER PROTEIN PAKAN YANG BERBEDA Sutarmat, Tatam; Slamet, Bejo
Jurnal Penelitian Perikanan Indonesia Vol 8, No 3 (2002): (Vol.8 No.3 2002)
Publisher : Pusat Penelitian dan Pengembangan Perikanan, Badan Penelitian dan Pengembangan Kelautan da

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jppi.8.3.2002.31-36

Abstract

Untuk pengembangan budi daya ikan napoleon, Cheilinus undulatus perlu disiapkan teknologi perbenihannya.
PENGARUH PROPORSI ASAM LEMAK HEWANI DAN NABATI PADA PAKAN BUATAN TERHADAP PEMATANGAN GONAD DAN PEMIJAHAN KEPITING BAKAU scylla serrata Kasprijo, Kasprijo; Yunus M, Yunus M; Marzuqi, Marzuqi; Sutarmat, Tatam; Setyadi, Irwan
Jurnal Penelitian Perikanan Indonesia Vol 2, No 4 (1996): (Vol.2 No.4 1996)
Publisher : Pusat Penelitian dan Pengembangan Perikanan, Badan Penelitian dan Pengembangan Kelautan da

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jppi.2.4.1996.23-28

Abstract

Penelitian ini dilakukan dengan menggunakan hewan uji induk kepiting dengan bobot ratarata 815 g, panjang karapas rata-rata 8,5 cm dan lebar karapas rata-rata 12 cm.