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All Journal Jurnal Akuakultur Indonesia ACTA VETERINARIA INDONESIANA Jurnal Pengolahan Hasil Perikanan Indonesia Jurnal Ilmu dan Teknologi Kelautan Tropis BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) BERITA BIOLOGI Omni-Akuatika LIMNOTEK - Perairan Darat Tropis di Indonesia Jurnal Perikanan Universitas Gadjah Mada Jurnal Intek Akuakultur Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan Indonesian Aquaculture Journal Jurnal Riset Akuakultur Media Akuakultur Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Jurnal Abdi Insani Jurnal Pusat Inovasi Masyarakat Journal of Fisheries & Marine
Agus Oman Sudrajat
Department Of Aquaculture, Faculty Of Fishery And Marine Sciences, Bogor Agricultural University, Darmaga, Bogor 16680, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Social Sciences Veterinary Other

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cDNA ENCODING GROWTH HORMONE FROM HUMPBACK GROUPER (Cromileptes altivelis) Syaifudin, Mochamad; Alimuddin; Widyastuti, Utut; Sudrajat, Agus Oman; Sumantadinata, Komar; Aliah, Ratu Siti
BIOTROPIA Vol. 14 No. 2 (2007): BIOTROPIA Vol. 14 No. 2 December 2007
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2007.14.2.14

Abstract

Growth hormone (GH) that plays an important role in growth, reproduction, seawater adaptation, and immune function was isolated and sequenced from humpback grouper, Cromileptes altivelis. The cDNA was isolated from pituitary using RT-PCR. The 618 bp open reading frame encodes a 205 amino acid (aa) protein, which represents an 18 aa signal peptide followed by a 187 aa mature GH polypeptide. The fragment contained conserved domain of somatotropin–1, somatotropin–2, casein kinase II phosphorylation, protein kinase C phosphorylation, N–myristoylation and N–glycosilation. The similarity of deduced protein of humpback grouper GH was 65.0 - 89.5% with other fishes
Induction of Allotriploidy in Pangasius and Its Effects on Growth Performance Through Tetraploid × Diploid Hybridization Urabi, Debby; Rahmi, Kurnia Anggraini; Carman, Odang; Sudrajat, Agus Oman; Arfah, Harton
Jurnal Perikanan Universitas Gadjah Mada Vol 27, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.107986

Abstract

Triploidization is a polyploidization technique used to produce fish with improved growth, while hybridization is another method to enhance genetic quality through crosses within or between species. This study evaluated the growth performance of allotriploid catfish at the seed stage. The experiment was conducted for 45 days at the Laboratory of Reproduction and Genetics of Aquatic Organisms, Bogor Agricultural University, using a completely randomized design with four treatments and three replications. The treatments consisted of allotriploid, autotriploid, hybrid diploid, and diploid fish. Ploidy analysis showed that allotriploid and autotriploid fish had up to three nucleoli per cell, while hybrid diploid and diploid fish had a maximum of two. Growth results indicated that allotriploid fish achieved the highest final weight (4.68±0.12 g) and length (2.79 ± 0.16 inches), followed by hybrid diploid, autotriploid, and diploid fish. ANOVA results confirmed significant differences in final weight and length among treatments, indicating that ploidy manipulation and hybridization had a substantial impact on growth. However, feed conversion ratio and survival rate did not differ significantly (P > 0.05). Overall, the findings indicate that allotriploid catfish seeds showed superior growth performance compared to autotriploid, hybrid diploid, and diploid fish.
Cannibalism control of Asian seabass Lates calcarifer fry by melatonin hormone administration Muhammad Rifki Perdian; Agus Oman Sudrajat; Odang Carman; Harton Arfah
Jurnal Akuakultur Indonesia Vol. 25 No. 1 (2026): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19027/jai.25.1.70-80

Abstract

Cannibalism is one of the causes low survival rate white snapper fry due to its aggressiveness. Melatonin is a hormone that can modulate aggressive interactions in fish. This study aims to evaluate effect of melatonin hormone on the level cannibalism sea bass. This study used completely randomized design (CRD) consisting of four treatments and three replications, namely control (without melatonin hormone administration), melatonin doses of 5, 10, and 15 µg/g fish. Hormone administration was done orally through feed supplementation. Sea bass fry used were 2.82 ± 0.41 cm average length and 0.53 ± 0.08 g average weight. Stocking density was 2 fish/L. Sea bass were reared for 30 days with flow through system and fed three times a day in restricted manner (Feeding rate 15%). The results showed the administration of melatonin hormone can reduce level cannibalism, increase melatonin hormone levels, increase estradiol 17β hormone, and have no effect on body glucose levels sea bass. Melatonin dose 10 µg/g fish can reduce level cannibalism by 40.67% (P<0.05). The highest total cannibalism was found in the control treatment with a value of 58.67% (P <0.05). The administration of melatonin hormone did not affect the growth body weight and length of sea bass (P>0.05). Increasing dose melatonin beyond 10 µg/g fish tends to increase cannibalism. These results indicate the administration of melatonin hormone at a dose of 10 µg/g fish is the optimal dose to reduce cannibalism and increase fry survival, which is expected to increase the productivity of sea bass hatcheries. Keywords: aggressiveness, Asian seabass, cannibalism, melatonin   Abstrak Kanibalisme merupakan salah satu penyebab rendahnya tingkat kelangsungan hidup benih kakap putih akibat sifat agresivitasnya. Hormon melatonin merupakan hormon yang dapat memodulasi interaksi agresif pada ikan. Penelitian ini bertujuan untuk mengevaluasi pengaruh hormon melatonin terhadap tingkat kanibalisme ikan kakap putih. Penelitian ini menggunakan rancangan acak lengkap (RAL) yang terdiri dari 4 perlakuan dan 3 kali ulangan, yaitu kontrol (tanpa pemberian hormon melatonin), melatonin dosis 5, 10, dan 15 µg/g ikan. Pemberian hormon dilakukan secara oral melalui suplementasi pakan. Benih kakap putih yang digunakan berukuran panjang rata-rata 2,82 ± 0,41 cm dan berat rata-rata 0,53± 0,08 g. Padat tebar yaitu 2 ekor/L. Benih kakap putih dipelihara selama 30 hari dengan sistem flow through dan pemberian pakan sebanyak tiga kali sehari secara restricted (Feeding rate 15%). Hasil penelitian menunjukkan bahwa pemberian hormon melatonin dapat menurunkan tingkat kanibalisme, meningkatkan kadar hormon melatonin, cenderung meningkatkan hormon estradiol 17β, dan tidak berpengaruh terhadap kadar glukosa tubuh benih kakap putih. Melatonin dosis 10 µg/g ikan dapat mengurangi tingkat kanibalisme sebesar 40,67% (P<0,05). Total kanibalisme tertinggi terdapat pada perlakuan kontrol dengan nilai sebesar 58,67% (P<0,05). Pemberian hormon melatonin tidak berpengaruh terhadap pertumbuhan bobot dan panjang tubuh benih kakap putih (P>0,05). Peningkatan dosis melatonin melebihi 10 µg/g ikan cendrung meningkatkan kanibalisme. Hasil ini menunjukkan bahwa pemberian hormon melatonin dosis 10 µg/g ikan merupakan dosis optimal untuk mengurangi kanibalisme dan meningkatkan kelangsungan hidup benih, sehingga diharapkan  dapat meningkatkan produktivitas pembenihan kakap putih. Kata kunci: agresivitas, kakap putih, kanibalisme, melatonin
Co-Authors , Alimuddin . Suriansyah Ade Yulita Hesti Lukas Afif Abdurrahman Agoes Mardiono Jacoeb Akbar, Muhamad Saepul Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimudin Alimudin, Alimudin Andin Dwi Fitri Rahayu Andri Yanto Andriyanto Andriyanto Andriyanto Andriyanto Antharest Sugati, Antharest Aprelia Martina Tomasoa, Aprelia Martina Apriana Vinasyiam Arief Boediono Arlita, Kriswidya Armen Nainggolan Asda Laining Awaludin Bambang Gunadi Bambang Gunadi Bambang Gunadi Bastiar Bastiar Benny Heltonika Citra Fibriana Cut Dara Dewi Damiana Rita Ekastuti Daniel Djokosetiyanto Deni Radona, Deni Deny Sapto Chondro Utomo Didik Ariyanto Didik Ariyanto Dinamella Wahjuningrum Dinar Tri Soelistyowati Dony Prasetyo Dwi Mulyasih Dythia Asma Nadia Edison, Thomas Eka Kusuma Eko Harianto, Eko Eko Rini farastuti Enang Harris Eni Kusrini, Eni Eny Heriyati Enzeline, Valensia Epro Barades Erma Primanita Hayuningtyas Fahmi Akbar, Fahmi Fauzan Fajari Gustiano, Rudhy Hadra Fi Ahlina Hafidah, Riva Hafif Syahputra Halawa, Nenima Hanggara, Yudha Harton Arfah Haryanti Haryanti Haya Audina Azizia Helena Sahusilawane Herawati Rasid Hesti Wahyuningsih Hirmawan Tirta Yudha Iis Diatin Imron Indra Lesmana Irvan Faizal Irvan Faizal Irzal Effendi Jonathan Felix Raynar Joni Haryadi, Joni Jr, Muhammad Zairin Jufri, Fatahillah Maulana K. Sumawidjaja Kapelle, Imanuel B. D. Klea Chandra Komar Sumantadinata Komar Sumantadinata Komar Sumantadinata Komar Sumantadinata Komar Sumantadinata Ligaya I. T. A. Tumbelaka Luki Abdullah M. Zairin Junior Mahdaliana, Mahdaliana Mala Nurilmala Maulana, Fajar Megawati Wijaya Meillisa C. Mainassy Melta Rini Fahmi Mia Setiawati Mochamad Syaifudin, Mochamad Mohammad Mukhlis Kamal MUHAMMAD AGUS SUPRAYUDI Muhammad Cito Khairel Fauzan Muhammad Junior Zairin Muhammad Muttaqin Muhammad Rifki Perdian Muhammad Zairin Jr Muhammad Zairin Jr Muhammad Zairin Jr. Muhmmad Agus Suprayudi Mulyani, Lina Muslim Muslim N. Suhenda Nadia Mega Aryani, Nadia Mega Nazar, Danella Austraningsih Puspa Nur Bambang Priyo Utomo Odang Carman Odang Carman Olivia Karo Permana, Andre Puji Hastuti, Yuni Pustika Ratnawati Putri Utami, Putri Raden Roro Sri Pudji Sinarni Dewi Raden Roro Sri Pudji Sinarni Dewi Raden Roro Sri Pudji Sinarni Dewi Rahmi, Kurnia Anggraini Ratu Siti Aliah Rezki, Dinda Wahyu RIDWAN AFFANDI Rizsa Mustika Pertiwi Ronny I. Wahju S. Sarah Samara, Syifania Hanifah Sandra, Aan Aryanti Sholihin, Hidayatush Sinansari, Shofihar Siti Subaidah Sri Nuryati Sri Nuryati Sufal Diansyah Sularto Sularto Suriansyah Suriansyah Suriansyah, Suriansyah T. Budiardi T. Nursyams T. Prasetya Tatag Budiardi Tuti Puji Lestari Upmal Deswira Urabi, Debby Uthami Nagin Lestari UTUT WIDYASTUTI Wahyu Purbiantoro Wasmen Manalu Wibowo, Kesit Tisna WIDANARNI WIDANARNI Wildan, Dudi Muhammad Wiwin Kusuma Atmaja Putra Y. Hadiroseyani Yanti Sinaga Yonvitner - Zahri, Abdul