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All Journal HAYATI Journal of Biosciences Jurnal Ilmu Pertanian Indonesia Jurnal Akuakultur Indonesia Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Microbiology Indonesia BIOTROPIA - The Southeast Asian Journal of Tropical Biology Journal of Tropical Biodiversity and Biotechnology JURNAL BIOLOGI INDONESIA JFMR (Journal of Fisheries and Marine Research) Omni-Akuatika Acta Aquatica: Aquatic Sciences Journal Proceeding Simposium Nasional Kelautan dan Perikanan Jurnal Perikanan Universitas Gadjah Mada Biosaintifika: Journal of Biology & Biology Education Indonesian Aquaculture Journal Jurnal Riset Akuakultur Media Akuakultur Jurnal Kelautan Nasional Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan Jurnal Penyuluhan Perikanan dan Kelautan Jurnal Abdi Insani Media Akuatika: Jurnal Ilmiah Jurusan Budidaya Perairan Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Rahmatan Lil’alamin Journal of Community Services (RLA) Jurnal Pepadu Jurnal Kedokteran Hewan Journal of Fisheries & Marine Journal of Vocational in Aquaculture (JAVA) Jurnal Perikanan Darat dan Pesisir (JPDP)
WIDANARNI WIDANARNI
Department Of Aquaculture, Faculty Of Fisheries And Marine Sciences, Bogor Agricultural University, Darmaga Campus, Bogor 16680, Indonesia
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PENINGKATAN PRODUKTIVITAS TAMBAK UDANG VANAME MELALUI PENGEMBANGAN SUMBERDAYA MANUSIA DI DESA KARANGSEWU, KECAMATAN GALUR, KABUPATEN KULON PROGO, DIY : Increasing the Productivity of White Shrimp Ponds Through Human Resources Development in Karangsewu Village, Galur District, Kulon Progo Regency, DIY Diatin, Iis; Budiardi, Tatag; Hadiroseyani, Yani; Effendi, Irzal; Widanarni, Widanarni; Vinasyam, Apriana; Astari, Belinda; Apriani, Ita
Jurnal Pepadu Vol 5 No 4 (2024): Jurnal PEPADU
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v5i4.5895

Abstract

Quality of human resources is a key factor in the success of cultivation. Farmers who have good technical knowledge and skills tend to be more successful in managing their ponds. Therefore, through training and mentoring programs, it is hoped that the knowledge and skills needed to increase shrimp pond productivity can be provided. The purpose of this activity is to improve farmers' understanding of effective and efficient white shrimp cultivation techniques, identify problems, and create networks between farmers to share experiences and information. The training was held in July 2024 in Karangsewu Village, Galur District, Kulon Progo Regency, D.I.Yogyakarta Province. The training attended by 35 participants consisting of white shrimp farmers, fisheries extension workers, and the surrounding community. After completing the training, participants received support in the form of mentoring for shrimp cultivation activities for three months. Pre-tests and post-tests were conducted to measure the increase in participants' knowledge. The results showed that the level of knowledge of participants increased by 6.64%. As many as 79% of participants strongly agreed that the training could improve their knowledge, 71% strongly agreed that the training they attended was relevant to their jobs, and 86% of participants stated that they could develop their potential after attending the program. The results of post-training monitoring showed that productivity of white shrimp pond increased from an average of 12 tons/ha to 23.16 tons/ha. This program not only increases productivity and business sustainability, but also has a positive impact on the economy of the surrounding community. There needs to be a follow-up program to improve shrimp farmers' understanding of financial management, marketing strategies, and the development of value-added products.
Effect of Dietary Canarium indicum L. on the Growth, Health, and Resistance of Asian Seabass Challenged with Vibrio alginolyticus Taufiq Abdullah; Wahjuningrum, Dinamella; Widanarni Widanarni
Jurnal Ilmiah Perikanan dan Kelautan Vol. 16 No. 1 (2024): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v16i1.43881

Abstract

Abstract Canarium indicum offers the potential of usage in aquaculture. This study aimed to evaluate the utilization of C. indicum on growth performance, health, and resistance of Asian seabass Lates calcalifer challenged with Vibrio alginolyticus. The study employed a completely randomized design with seven treatments, namely positive control (K+), negative control (K-), vitamin control (KVit), antibiotic control (KAnt), doses of 5 g kg-1 (D05), 10 g kg-1 (D10), and 20 g kg-1 C. indicum (D20). The test feed was prepared with a coating method and fed for 30 days. On the 31st day of rearing, a challenge test was conducted by injecting V. alginolyticus intramuscularly at 106 CFU mL-1. The results showed that C. indicum treatment for 30 days had a significantly different effect (P<0.05) on weight gain and average daily growth, while KVit and KAnt treatments were not different from the control. After the challenge test, all doses of C. indicum treatment, as well as KVit and KAnt treatments, showed survival significantly different (P<0.05) from that of the positive control, which ranged from 88.89% to 95.56% and was not significantly different (P>0.05) from the negative control. The survival rate condition is identical to the cumulative survival condition which shows the highest mortality found in the positive control. The administration of C. indicum at a dose of 5 g kg-1 to 20 g kg-1 improved the growth performance and prevented V. alginolyticus infection. Highlight Research C. indicum significantly increases the growth of Asian seabass. C. indicum significantly enhances the immune response to V. alginolyticus infection in Asian seabass. C. indicum can prevent V. alginolyticus infection as it resulted in a higher and cumulative survival than the positive control. C. indicum can be developed as an immunostimulant for the prevention of vibriosis in Asian seabass at doses of 5 g kg-1 to 20 g kg-1.
Effect of Dayak Onion (Eleutherine bulbosa (Mill.) Urb.) on the Immune Response and Gene Expression of Nile Tilapia (Oreochromis niloticus) Infected with Aeromonas hydrophila Fauzi, Arini Resti; Yuhana, Munti; Widanarni, Widanarni; Setiawati, Mia; Afiff, Usamah
Jurnal Ilmiah Perikanan dan Kelautan Vol. 16 No. 1 (2024): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v16i1.44079

Abstract

Abstract Dayak onion (Eleutherine bulbosa (Mill.) Urb.) has the potential to be an immunostimulant to benefit fish health. This study aimed to evaluate the effectiveness of dietary supplementation with the powder and crude ethanol extracts of Dayak onion on the hematology and immune response parameters of Nile tilapia challenged with Aeromonas hydrophila. The research used a completely randomized design with six treatments and three replications. Nile tilapias were fed with Dayak onion (w/v) consisting of powders of 5% (P5), 10% (P10), and 15% (P15), while crude extract was 0.5% (E05) and given during rearing for 30 days. Positive control (C+) and negative control (C-) were used without Dayak onion. Nile tilapia in treatment C+, P5, P10, and P15 were injected with A. hydrophila 10⁶ CFU mL⁻1, while that in treatment C- was injected with phosphate buffered saline (PBS) intramuscularly. The results showed that the dietary with 15% powder and 0.5% crude extract significantly improved the hematology and immune response parameters compared to the control after the challenge against A. hydrophila (P<0.05). Dayak onion supplementation effectively increased the health status based on hematology and immune response parameters of Nile tilapia against A. hydrophila infection. Highlight Research Dayak onion has significant potential to improve nonspecific immunity in fish. Dayak onion improves hematology and immune response of Nile tilapia. Dayak onion can significantly regulate the immune system against A. hydrophila infection. Dayak onion significantly increases the production of the gene expression of IL-1β and TNF-α.
APLIKASI SINBIOTIK UNTUK PENCEGAHAN INFEKSI INFECTIOUS MYONECROSIS VIRUS PADA UDANG VANAME (Litopenaeus vannamei) (Synbiotic Application for Prevention of Infectious Myonecrosis Virus Infection in White Shrimp (Litopenaeus vannamei)) Widanarni, Widanarni; Sukenda, Sukenda; Septiani, Ghita Ryan
Jurnal Kedokteran Hewan Vol 10, No 2 (2016): September
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v10i2.5041

Abstract

This study aimed to evaluate the effectiveness of dietary synbiotic at different giving frequencies on growth, immune responses, and resistance of white shrimp infected by infectious myonecrosis virus (IMNV). Synbiotic used in this study was combination of probiotic Vibrio alginolyticus SKT-b and prebiotic oligosaccharides extracted from sweet potatoe (Ipomoea batatas L). Doses of probiotic and prebiotic used were 1% and 2% (w/w), respectively. The white shrimps (0.4930.035 g) were divided into five treatments consisting of A and B (without supplementation of synbiotic: (A) positive control; (B) negative control), C (daily synbiotic supplementation), D (twice a week synbiotic supplementation), and E (weekly synbiotic supplementation). After 30 days of feeding trial, white shrimps were infected by IMNV (except negative control). The results showed that daily growth rate of white shrimp on all synbiotic treatments (C, D, and E) ranged from 6.930.025-6.970.019% and had higher values than controls (A and B) (P0.05). Meanwhile, feed conversion value in C and D (1.540.142 and 1.580.117) were lower than controls (P0.05). Supplementation of synbiotic with different frequencies also affected survival rate of white shrimp after the challenge test with IMNV; daily synbiotic supplementation (C) resulted in a 50% higher survival rate than positive control (P0.05). This was associated with immune responses parameters values of synbiotic treatment (before and after the challenge test) which were better than positive control. In conclusion the addition of synbiotic in feed resulted in higher growth performances, immune responses,and resistance of white shrimp to IMNV infection.
Evaluation of human resources capacity, institutional and marketing in the Minapolitan Area, Merangin Regency, Jambi Province Suprianto, Dedi; Effendi, Irzal; Budiardi, Tatag; Widanarni, Widanarni; Diatin, Iis; Hadiroseyani, Yani
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 10: No. 1 (April, 2023)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v1i2.8632

Abstract

Evaluation of human resource development and institutional aspects is a process of providing information that can be used as a consideration to improve capabilities and be able to influence the implementation of community empowerment programs. The aimed of this study was to evaluate the capacity of human resources, institutions, and aquaculture marketing systems in the minapolitan area of Merangin Regency. The method of data collection was carried out using a structured interview method with the help of a questionnaire to 493 fish cultivating households (CH). Data were analyzed by multidimensional scaling and leverage analysis using Rapfish software. The results showed that the CH of catfish obtained the highest average index of 55.58, followed by the CH of gouramy at 53.60, the CH of tilapia at 54.57 and the CH of catfish obtained an average index of 54.71. This illustrates that the performance of catfish farmers in aquaculture production technology and management systems is better than the performance of other fish farmers. The results of the evaluation of all aspects of the capacity of human resources, institutions, and aquaculture marketing systems indicate that there are 3 aspects that are in the range of 50.10-75.00 with moderately sustainable status, namely; human resource development aspect with an average index value (AIV) of 68.64, technology aspect with an AIV of 52.98, and natural resources aspect with an AIV of 65.22. Meanwhile, there are 2 aspects that are in the range of 25.10-50.00 with less sustainable status, namely the institutional aspect with an AIV of 48.23 and the economic aspect with an AIV of 48.62.Keywords: Aquaculture; Institutional; Marketing; Sustainability
ADMINISTRATION OF Curcuma spp. EXTRACT TO CONTROL Aeromonas hydrophila INFECTION IN STRIPED CATFISH (Pangasianodon hypophthalmus) Sasanti, Ade Dwi; Widanarni, Widanarni; Sukenda, Sukenda; Yuhana, Munti; Wahjuningrum, Dinamella; Setiawati, Mia
Indonesian Aquaculture Journal Vol 20, No 1 (2025): (June, 2025)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.20.1.2025.23-36

Abstract

Curcuma spp. is a phytobiotic with potential application in fish farming. This study aimed to evaluate the potential of Curcuma zedoaria, Curcuma aeruginosa and Curcuma mangga extracts in striped catfish infected with Aeromonas hydrophila. The study used a complete randomized design (CRD) consisting of six treatments: KN (negative control), KP (positive control, fish infected without treatment), PE (C. zedoaria extract 6.25 g kg-1), HE (C. aeruginosa extract 6.25 g kg-1), ME (C. mangga extract 6.25 g kg-1) and KE (combination of C. zedoaria extract 2.1 g kg-1 + C. aeruginosa extract 2.1 g kg-1 + C. mangga extract 2.1 g kg-1). A total of 360 striped catfish, 10 ± 0.5 cm were kept in 18 aquariums measuring 50 × 40 × 35 cm3 and fed the treatment for 30 days. The challenge test was conducted on day 31 by injecting A. hydrophila suspension (106 colony-forming units (CFU) mL-1) intramuscularly into fish. The results showed that the treatment administered were able to stimulate the expression of interleukin-1â, interferon-ã 2a, 2b genes, increase the number of red and white blood cells, hematocrit, hemoglobin, phagocytosis activity, respiratory burst, reduce the population of A. hydrophila in the intestine, and reduce tissue damage in striped catfish. Striped catfish treated with the extracts showed significantly higher survival rates (p<0.05) compared to the positive control group. The survival rates were: KN (100.00 %), KP (53.33%), PE (93.33 %), HE (91.67 %), ME (93.33 %), and KE (88.33 %). In conclusion, the treatment administered were able to enhance the immune response and resistance of striped catfish infected with A. hydrophila.
EFFECTIVENESS OF BIOFLOC, PROBIOTICS AND THE COMBINATIONS ON GROWTH, IMMUNE RESPONSES AND RESISTANCE OF VANNAMEI SHRIMP INFECTED WITH Vibrio parahaemolyticus Wicaksono, Baref Agung; Widanarni, Widanarni; Yuhana, Munti; Gustilatov, Muhamad; Afiff, Usamah
Indonesian Aquaculture Journal Vol 20, No 1 (2025): (June, 2025)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.20.1.2025.59-73

Abstract

Vibrio parahaemolyticus strain that produces PirA and PirB toxins is the main causative agent of Acute Hepatopancreatic Necrosis Disease (AHPND) in vannamei shrimp. This study aimed to evaluate the effect of biofloc application, probiotic Pseudoalteromonas piscicida 1Ub, and their combination on growth, immune response and resistance of vannamei shrimp infected with V. parahaemolyticus strain. This study used a completely randomized design consisting of biofloc-based system treatment with or without probiotic 1Ub and normal seawater as control. All treatment groups were challenged with V. parahaemolyticus AHPND strain at a cell density of 105 CFU mL”1 through immersion, while the negative control was reared without being pathogenic challenged. The shrimp used were in averaged body weight of 1.3 ± 0.002 g, reared for 21 days and fed five times a day at 06:00, 10:00, 14:00, 18:00, and 22:00 WIB. The results showed that the B+Pro combination challenge test treatment resulted the best growth performance (specific growth rate, absolute length gain and feed conversion ratio) (P<0.05) compared to other challenge test treatments. hrimp treated with B+Pro also showed a lower intestinal cell population of V. parahaemolyticus RfR, and significantly higher immune response values (P<0.05) than those of other challenge test treatments and K+. Furthermore, those parameters supported positive impact on final shrimp survival rates in the experiment. This study shows that the application of combination of biofloc and 1Ub probiotic bacteria can significantly protect and increase the resistance of vannamei shrimp to V. parahaemolyticus AHPND infection.
RESPONS PERTUMBUHAN, PEMANFAATAN NUTRIEN, DAN AKTIVITAS ANTIOKSIDAN IKAN TORSORO (Tor soro) YANG DIBERI PAKAN DENGAN SUPLEMENTASI GLUTAMIN Samsudin, Reza; Jusadi, Dedi; Setiawati, Mia; Widanarni, Widanarni; Alimuddin, Alimuddin; Sunarno, Mas Tri Djoko
Jurnal Riset Akuakultur Vol 19, No 3 (2024): September (2024)
Publisher : Politeknik Kelautan dan Perikanan Jembrana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jra.19.3.2024.205-227

Abstract

Penelitian ini bertujuan untuk mengevaluasi pengaruh suplementasi glutamin terhadap pertumbuhan dan aktivitas antioksidan pada ikan Torsoro (Tor soro). Ikan uji yang digunakan adalah juvenil ikan dengan berat awal rata-rata 5,21 ± 0,04 g. Perlakuan yang diberikan terdiri atas suplementasi glutamin bebas dengan dosis yang berbeda (0; 0,5; 1,0; 1,5; dan 2%) dan alanil-glutamin (0,84; 1,67; 2,51; dan 3,35%) pada pakan, setiap perlakuan memiliki lima kali ulangan. Perlakuan pakan diberikan tiga kali sehari sekenyangnya. Ikan uji dipelihara selama 60 hari. Parameter yang diamati meliputi performa pertumbuhan, pemanfaatan nutrisi, indeks biologis, dan aktivitas antioksidan. Hasil penelitian menunjukkan bahwa pakan yang disuplementasi glutamin bebas berpengaruh nyata (p<0,05) terhadap performa pertumbuhan, pemanfaatan nutrisi, indeks biologis, dan aktivitas antioksidan ikan uji. Hasil uji lebih lanjut menunjukkan bahwa suplementasi alanil-glutamin dalam pakan sebesar 2,51% memberikan hasil terbaik terhadap bobot akhir, laju pertumbuhan spesifik, retensi protein, rasio efisiensi protein, konversi pakan, rasio viseral somatik, rasio panjang usus, aktivitas superoksida dismutase, glutation peroksidase, dan katalase pada ikan Torsoro. Berdasarkan evaluasi keseluruhan terhadap parameter yang diamati, penelitian ini menunjukkan bahwa suplementasi alanil-glutamin dalam pakan pada tingkat 2,51% mampu meningkatkan kinerja pertumbuhan, pemanfaatan nutrisi, indeks biologis, dan aktivitas antioksidan pada ikan Torsoro.This study aimed to evaluate the effects of glutamine supplementation on the growth of and antioxidant activity in Torsoro fish (Tor soro). The test fish used were Torsoro fish juveniles with an average initial weight of 5.21 ± 0.04 g. The treatments consisted of different supplementation levels of free glutamine (0; 0.5; 1.0; 1.5; and 2%) and alanyl-glutamine (0.84; 1.67; 2.51; and 3.35%) in feed, where each treatment had five replicates. The feed treatments were given three times a day ad satiation. The experimental fish were reared for 60 days. The parameters observed included growth performance, nutrient utilization, biological indices, and antioxidant activity. The results showed that free glutamine-supplemented feed significantly affects (p<0.05) the growth performance, nutrient utilization, biological indices, and antioxidant activity of the tested fish. Further test results showed that alanyl glutamine supplementation in feed at 2.51% produced the best results on the final weight, specific growth rate, protein retention, protein efficiency ratio, feed conversion, somatic visceral ratio, intestine length ratio, superoxide dismutase, glutathione peroxidase, and catalase activities of Torsoro fish. Based on the overall achievement of the observed parameters, this study determines that alanyl-glutamine supplementation in feed at 2.51% improves the growth performance, nutrient utilization, biological indices, and antioxidant activity of  Torsoro fish.
EKSTRAK KULIT BAWANG MERAH (Allium ascalonicum) SEBAGAI ANTIBAKTERI UNTUK PENGOBATAN UDANG VANAME YANG DIINFEKSI Vibrio parahaemolyticus Ramadhani, Dian Eka; Wahjuningrum, Dinamella; Saputri, Rika Ani; Widanarni, Widanarni; Rizkiyanti, Ita
Jurnal Riset Akuakultur Vol 19, No 4 (2024): Desember (2024)
Publisher : Politeknik Kelautan dan Perikanan Jembrana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jra.19.4.2024.345-364

Abstract

Early Mortality Syndrome (EMS) or Acute Hepato Pancreatic Necrosis Disease (AHPND) caused by the pathogenic bacteria Vibrio parahaemolyticus (V. par) causes mass deaths in shrimp farming. This study aims to obtain the effective dose of shallot skin extract as a treatment for Pacific whiteleg shrimp infected with V. par RfR (rifampicin resistance 50 µg mL- 1). This research was conducted at the Pilot plane Faculty of Agricultural Technology and Laboratory of Aquatic Animal Health Management, Jepara Centre for Brackish Water Aquaculture (BBPBAP). This study used a Completely Randomized Design (CRD) consisting of five treatments and three replications, namely K- (negative control), K+ (positive control), KBM6,25 (shallot skin extract 6,25%), KBM12,5 (shallot skin extract red 12,5%), and KBM25 (shallot skin extract 25%). This research used Pacific whiteleg shrimp 3,41 ± 0,73 g fish-1,which were injected with V. par RfR bacteria and continued with 14 days of maintenance. The results showed that administration of shallot skin extract at a dose of 6,25% resulted in total haemocyte count (THC), differential haemocyte count (DHC), phagocytic activity (AF), reduction in the number of V. par RfR bacteria, survival rate, and feeding ratio which were significantly different compared to the positive control. Meanwhile, the clinical symptoms caused by treatment with shallot skin extract at doses of 6,25%, 12,5% and 25% recovered on the 14th day compared to the positive control, which still experienced clinical symptoms of infection.
PENGARUH SUPLEMENTASI TRIPTOFAN MELALUI PAKAN TERHADAP KANIBALISME DAN KONSENTRASI HORMON STEROID BENIH IKAN BAUNG (Hemibagrus nemurus) Heltonika, Benny; Sudrajat, Agus Oman; Junior, Muhammad Zairin; Widanarni, Widanarni; Suprayudi, Muhammad Agus; Manalu, Wasmen; Hadiroseyani, Yani
Jurnal Riset Akuakultur Vol 17, No 3 (2022): (September) 2022
Publisher : Politeknik Kelautan dan Perikanan Jembrana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jra.17.3.2022.133-144

Abstract

Perilaku kanibal pada benih ikan baung (Hemibagrus nemurus) menjadi permasalahan pada pembenihannya. Salah satu pendekatan yang sudah dilakukan untuk mengendalikan kanibalisme pada ikan adalah pemberian triptofan.  Penelitian ini bertujuan untuk mengetahui pengaruh triptofan terhadap kejadian kanibalisme dan kandungan konsentrasi hormon steroid pada benih ikan baung. Panjang awal benih yang digunakan adalah 4,98±0,1 cm yang dipelihara di dalam akuarium berkapasitas 20 L dengan kepadatan 3 ekor per L.  Selama penelitian, benih ikan baung diberi pakan komersial (40% protein) yang disuplementasi triptofan dengan konsentrasi berbeda, yaitu tanpa suplementasi triptofan (A), suplementasi triptofan 0,25% (B), suplementasi triptofan 0,50% (C), suplementasi triptofan 0,75% (D), dan suplementasi triptofan 1% (E). Setiap perlakuan terdiri dari tiga kali ulangan. Pakan diberikan empat kali sehari secara satiasi. Parameter yang diamati adalah tipe kanibal, indeks kanibal, kematian normal, sintasan, performa pertumbuhan serta konsentrasi hormon (estradiol, testosteron, dan kortisol). Hasil penelitian menunjukkan bahwa pemberian pakan yang diperkaya triptofan memberikan penurunan kejadian kanibal dan peningkatan sintasan benih ikan baung. Pemberian triptofan juga menurunkan kandungan estradiol tubuh, dan penurunan ini ada kaitannya dengan penurunan kejadian kanibalisme. Performa pertumbuhan benih ikan baung meningkat dengan pemberian pakan yang ditambahkan triptofan.  Hasil penelitian ini menunjukkan bahwa suplementasi 0,50–0,75% triptofan pada pakan efektif menurunkan kejadian kanibalisme pada benih ikan baung.The cannibal behavior of Asian redtail catfish (Hemibagrus nemurus) is a problem in the hatchery. One approach that has been used to control cannibalism in fish is the use of tryptophan. This study aimed to determine the effect of tryptophan on the incidence of cannibalism and the content of steroid hormones in Asian redtail catfish juveniles. The study was conducted using the fish with a body length of 4.98±0.14 cm reared in aquariums with a water volume of 20 L with a density of 3 fish per L. Fish were given commercial feed (40% protein) supplemented with tryptophan with different concentrations, namely without tryptophan supplementation (A), tryptophan supplementation 0.25% (B), tryptophan supplementation 0.5% (C), tryptophan supplementation 0.75% (D), and tryptophan supplementation 1% (E). Each treatment consisted of three replications. Feed were given four times a day at satiation level. Parameters observed were cannibal type, cannibal index, normal mortality, survival rate, growth performance, and hormone concentration (estradiol, testosterone, and cortisol). The results showed that giving tryptophan through feed decreased the incidence of cannibalism and increased the survival of Asian redtail catfish juveniles. The addition of tryptophan to the feed decreased the concentration of estradiol in the body of fish and it is associated with a decrease in the incidence of cannibalism, thereby improving survival.  Furthermore, the supplementation of tryptophan also increased growth performance. The results of this study showed that supplementation of 0.50-0.75% tryptophan in feed was effective in reducing the incidence of cannibals in Asian redtail catfish juveniles.
Co-Authors . Sunarto A. Sunarma A. Suwanto A.J. Sihombing Achmad Farouq Ade Dwi Sasanti ADNI OKTAVIANA Afiff , Usamah Agus Oman Sudrajat Aldy Mulyadin Alfabetian Harjuno Condro Haditomo Alimuddin Alimuddin Alimuddin Alimudin Alimudin, Alimudin Alit Brilliant Angela Mariana Kusumastuti, Angela Mariana Angela Mariana Lusiastuti Angela Mariana Lusiastuti Angela Mariana Lusiastuti Angela Mariana Lusiastuti Angela Mariana Lusiastuti Angela Mariana Lusiastuti Angela Mariana Lusiastuti Anis Al Rosjidi Anis Zubaidah Anja Meryandini Anja Meryandini Anja Meryandini Annisa Astri Anggraeni ANTONIUS SUWANTO Antonius Suwanto Ardana Kurniaji Arief Muhammad Arini Resti Fauzi Aris Tri Wahyudi Asri Sutanti, Asri Asrido, Farhan Astari, Belinda Ayi Santika Bagus Ansani Takwin Bako, Surandha Benny Heltonika Cahyawati, Nadia Catur A. Pebrianto D. Augustine D. Djokosetiyanto D. Meha D. Shafruddin D.D. Mailana D.T. Soelistyowati Daniel Djokosetiyanto DEBY YUNIASARI DEDI JUSADI Dedy Suprianto Dendi Hidayatullah, Dendi Dewi Nurhayati Dewi Rahmi DIAH AYU SATYARI UTAMI DIANA ELIZABETH WATURANGI Dinamella Wahjuningrum Dinar Tri Soelistyowati Dwi Agung Saputra E. Ayuzar Eddy Supriyono Elizabeth Waturangi, Diana Enang Harris Enang Harris Enzeline, Valensia Fadilah, Iin Nur Fahmi Rajab Fauzi, Arini Resti Ferymon Mahulette Ferymon Mahulette Ferymon Mahulette, Ferymon Fiska Puspita Fitria Novianti Frid Agustinus Gentiga Muhammad Zairin Ghita Ryan Septiani Gustilatov, Muhamad H.J. Bugri Hamida Pattah Hamsah Hamsah Hamtini - Hamtini Hany Handajani Harton Arfah Hasan Nasrullah Huda Salahudin Darusman Huda Shalahudin Darusman I. Effendi I. Tepu Iis Diatin Iis Sumartini Iman Rusmana Inem Ode Iqbal Kurniawinata, Mohamad Irma Melati Irza Effendi Irzal Effendi Istiqomah, Amalia Ita Apriani Jeanni Indah Noermala Julie Ekasari Julyantoro, Pande Gde Sasmita Kautsar, Badar Kukuh Nirmala Kurnia Anggraini Rahmi La Ode Wahidin Lastriliah, Mira Lilik Setiyaningsih Linuwih Aluh Prastiti M. Tri Djoko Sunarno M. Yusuf Arifin M. Zairin Junior M.A. Lidaenni M.S. Arifin Mas Tri Djoko Sunarno, Mas Tri Djoko Maulana, Fajar Mia Setiawati Mohammad Faizal Ulkhaq MUHAMMAD AGUS SUPRAYUDI Muhammad Junior Zairin Muhammad Subhan Hamka Muhammad Zairin Jr. Mulyasari Mulyasari Mulyasari Mulyasari MUNTI YUHANA Nababan, Yanti Inneke Nasrullah, Hasan NISA RACHMANIA MUBARIK Nur Bambang Priyo Utomo Nuri Kamaliah, Syarifah O. Carman Ode, Inem Prassetyo Dwi Dhany Wijaya Puguh Widagdo Putra, The Best Akbar Esa Rakhmawati, Rakhmawati, Ramadhani, Dian Eka Ratnadilla, Thamara Reza Samsudin Rifqah Pratiwi Rio Yusufi Subhan Rizki Praseto, Rizki Rizkiyanti, Ita Rr. Bellya Anasti Maharani Ruku Ratu Borut S. Sarah Safira Qisthina Ayuningtyas, Safira Qisthina Salamah Salamah Samsu Adi Rahman Saputri, Rika Ani Septiani, Ghita Ryan Siregar, Khoirotun Nisa SITI MARYAM Sri Nuryati Sri Nuryati Suci antoro Sudrajat, R Herman Sugiyo Hadi Pranoto Sujaka Nugraha Sujono Sujono Sukenda Sukenda Sukenda, Sukenda, Suleman, Gabriella Augustine Suprianto, Dedi Suryadi Saputra Tambun, Andreas Tatag Budiardi Tatik Mufidah Tatik Mufidah Taufiq Abdullah Taufiq Abdullah Titin Kurniasih Tri Heru Prihadi Tri Rezeki, Nanda Tsani Untsa, Agista Turnip, Enita Romasni Vinasyam, Apriana W. Efiyanti Wahyu Afrilasari Wahyu Purbiantoro WAODE MUNAENI Wasmen Manalu Wicaksono, Baref Agung Wida Lesmanawati Windu Sukenda Wira H Saputra Y. Hadiroseyani Yani Aryati Yeni Elisdiana Yudha Trinoegraha Adiputra Yudha Trinoegraha Adiputra Yuke Eliyani Yuke Eliyani Yulianti, Susy Anisa Yunarty Yunarty Zafril Imran Azwar Zairin Jr., Muhammad