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All Journal Jurnal Perikanan Universitas Gadjah Mada Jurnal Riset Akuakultur Jurnal Medik Veteriner
Nurhudah, Moch.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Veterinary

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Effect of Stocking Density on Stress-Related Gene Expression of Pacific White Shrimp (Litopenaeus vannamei) Infected with Infectious Myonecrosis Virus (IMNV) Nurhudah, Moch.; Baladrat, Nur Komariah; Rahardjo, Sinung; Utari, Heny Budi; Wiradana, Putu Angga
Jurnal Medik Veteriner Vol. 7 No. 2 (2024): October
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmv.vol7.iss2.2024.276-291

Abstract

The stress level of vannamei shrimp (Litopenaeus vannamei) is affected by increased density and several genes are expressed under the condition. This study aimed to determine the expression of genes encoding white shrimp stress after density treatment and the infectious myonecrosis virus (IMNV) challenge test. A completely randomized design (CRD) was carried out with 6 treatment groups, i.e. 3 different stocking density groups without IMNV infection (100, 200, and 400 shrimp/m2) and 3 different stocking density groups + IMNV infection (100, 200, and 400 shrimp/m2). In addition, a shrimp density of 400 shrimp/m2 reported the fastest rate of developing the IMNV virus as seen from the clinical symptoms. The lowest cumulative number of shrimp deaths was at a density of 100 shrimp/m2 and was caused by the IMNV virus confirmed through RT-PCR. Expression of stress-coding genes was divided into upregulated and downregulated characteristics. The upregulated genes were lectin and translationally controlled tumor protein (TCTP), while the downregulated gene was Toll Receptor. The results showed that the expression of genes related to immunity in L. vannamei was upregulated after pathogen challenges such as lectin and TCTP, meanwhile, the Toll receptor gene was downregulated. Further study should also be performed to measure the expression of the three genes in revealing the immune pathways.
Dry Media Formulation to Increase Productivity and Quality of Silkworms (Tubifex sp.) as A Natural Feed Development for Aquaculture Corne, Yohanes; Rahardjo, Sinung; Nurhudah, Moch.; Wiradana, Putu Angga
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.91351

Abstract

Silk worms (Tubifex sp.) are a type of natural food that is widely used for the needs of fish farming activities, especially in the freshwater fish hatchery phase. This study aimed to determine the effect of providing dried feed/media with varying doses on the productivity of silk worms. The study was conducted using a Completely Randomized Design (CRD) with three treatment groups and four replications which included administration of dry media at a dose of (P1) 150 g/m2 (P2) 250 g/m2 (P3) 350 g/m2. The initial silk worm seeds were obtained from silk worm collectors or sellers in Cipayung-East Jakarta. Maintenance of silk worms was carried out for 55 days. The results of the diversity analysis showed that there was a significant difference in the dose of dry media in cultivating silk worms (P≤0.05). The best absolute weight growth, population growth, and productivity were shown in the media treatment with a dose of 250 g/m2 (P2) with absolute biomass growth of 408.7 g, population growth of 209,381 individuals, and productivity of 1.3/m2/cycle. The results of water quality observations are still in a relatively optimal range. Silk worms have the potential to be developed as a safe, environmentally beneficial, and inexpensive natural food for cultivated animals.
PENGARUH PENAMBAHAN SERBUK KUNYIT DAN TEMULAWAK PADA MEDIA KULTUR TERHADAP PENINGKATAN KUALITAS CACING SUTERA (Tubifex sp.) Pandawa, Teresa Dewi; Rahardjo, Sinung; Nurhudah, Moch.
Jurnal Riset Akuakultur Vol 20, No 1 (2025): Maret (2025)
Publisher : Politeknik Kelautan dan Perikanan Jembrana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jra.20.1.2025.89-101

Abstract

Cacing sutera (Tubifex sp.) merupakan organisme akuatik yang memiliki peran strategis dalam sektor akuakultur sebagai pakan alami bagi ikan. Kualitas organisme ini sangat memengaruhi efektivitas budidaya. Penelitian ini bertujuan untuk mengkaji pengaruh penambahan serbuk kunyit (Curcuma longa) dan temulawak (Curcuma xanthorrhiza) dalam pakan terhadap produktivitas dan kualitas Tubifex sp. Penelitian dilakukan secara eksperimental menggunakan rancangan acak lengkap (RAL) dengan empat perlakuan: P0 (tanpa tambahan), P1 (2,5 g kunyit + 7,5 g temulawak), P2 (5 g kunyit + 5 g temulawak), dan P3 (7,5 g kunyit + 2,5 g temulawak), masing-masing per 100 g pakan. Pemberian pakan dilakukan setiap 3 hari sebanyak 1140 g m-² selama 21 hari. Data dianalisis menggunakan ANOVA dan uji Duncan. Hasil menunjukkan bahwa suplementasi serbuk kunyit dan temulawak secara signifikan meningkatkan pertumbuhan bobot dan produktivitas Tubifex sp., dengan P2 memberikan hasil terbaik (317,54 ± 13,16 g dan 2646,18 ± 109,74 g m-² siklus-1) (P<0,05). Penyerapan kurkumin tertinggi tercatat pada P2 sebesar 44,32 ± 11,30 mg kg-1 (P<0,05). Uji mikrobiologis menunjukkan bahwa semua perlakuan bebas dari kontaminasi Salmonella sp. dan Escherichia coli. Penelitian ini mengindikasikan bahwa penambahan serbuk kunyit dan temulawak dalam pakan dapat meningkatkan mutu dan keamanan Tubifex sp. dalam budidaya. Culturing Silkworms (Tubifex sp.) as a highly nutritious natural feed for farmed fish has been limited due to reliance on wild supply and limitation on reliable growth medium. This study aimed to assess the effects of addition of turmeric (Curcuma longa) and Javanese turmeric (Curcuma xanthorrhiza) powders in culture media on the productivity and quality of Tubifex sp. The study was conducted experimentally using a completely randomized design (CRD) with four treatments: P0 (no addition), P1 (2.5 g turmeric + 7.5 g Javanese turmeric), P2 (5 g turmeric + 5 g Javanese turmeric), and P3 (7.5 g turmeric + 2.5 g Javanese turmeric), per 100 g of feed for each treatment. Feeding was done every 3 days at a dose of 1140 g m-² for 21 days. Data were analyzed using ANOVA and Duncan's test. Results showed that turmeric and Javanese turmeric powders supplementation significantly increased Tubifex sp. weight growth and productivity, with P2 giving the best results (317.54 ± 13.16 g and 2646.18 ± 109.74 g m-² cycle-1) (P<0.05). The highest curcumin absorption was recorded in P2 at 44.32 ± 11.30 mg kg-1 (P<0.05). Microbiological tests showed that all treatments were free from Salmonella sp. and Escherichia coli contamination. This study indicated that addition of turmeric and Javanese turmeric powders in feed could improve the quality and safety of Tubifex sp. in aquaculture.
Co-Authors Baladrat, Nur Komariah Corne, Yohanes Pandawa, Teresa Dewi Putu Angga Wiradana Rahardjo, Sinung Utari, Heny Budi