Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Jurnal Riset Akuakultur Journal of Aquaculture and Fish Health
Kaborang, Yasinta Ega
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Environmental Science

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
EFFECTS OF FEEDING RATE REDUCTION ON THE GROWTH PERFORMANCE AND FEED UTILIZATION OF PACIFIC WHITE SHRIMP REARED USING BIOFLOC SYSTEM Kusmiatun, Anik; Utami, Diah Ayu Satyari; Firnaeni, Tata; Kaborang, Yasinta Ega; Harijono, Teguh; Tangguda, Sartika; Triyastuti, Meilya Suzan; Djauhari, Ricky; Tantulo, Uras; Sihombing, Mika Azarya
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.19.4.2024.331-343

Abstract

Biofloc in shrimp aquaculture provides natural food and reduces the reliance on commercial feed. The extent to which biofloc can optimize feeding management is not, however, fully understood. This study aimed to evaluate the effects of reducing feeding rates on the growth performance and feed utilization of Pacific white shrimp (Litopenaeus vannamei) reared in a biofloc system. A completely randomized design was used with four treatments: K (standard feeding, clear water), N (standard feeding, biofloc), NA (25% feeding reduction, biofloc), and NB (50% feeding reduction, biofloc). Shrimp were stocked at 40 individuals per tank and fed commercial feed containing 40% protein over a 30-day period. Results showed that shrimp in the NA treatment (25% feed reduction with biofloc) had the highest final weight (8.66 ± 0.03 g), biomass (306.13 ± 14.27 g), and weight gain (5.74 ± 0.25 g) compared to other treatments (P<0.05). NA also exhibited a higher specific growth rate (3.63 ± 0.27 %/day) than K and NB. Feed utilization improved with a lower feed conversion ratio and higher protein retention in the NA group. This study highlights that a 25% feeding rate reduction in biofloc systems optimizes shrimp growth and feed utilization. Future research should explore long-term sustainability, biofloc composition variations, and technological integration for scaling up efficient and environmentally sustainable shrimp farming operations.Penggunaan bioflok dalam budidaya udang memberikan makanan alami dan mengurangi ketergantungan pada pakan komersial. Namun, sejauh mana bioflok dapat mengoptimalkan manajemen pakan belum sepenuhnya dipahami. Penelitian ini bertujuan untuk mengevaluasi efek pengurangan laju pemberian pakan terhadap kinerja pertumbuhan dan pemanfaatan pakan udang vaname (Litopenaeus vannamei) yang dibudidayakan dalam sistem bioflok. Desain penelitian menggunakan rancangan acak lengkap (RAL) dengan empat perlakuan, yaitu: K (pemberian pakan standar, air jernih), N (pemberian pakan standar, bioflok), NA (pengurangan pakan 25%, bioflok), dan NB (pengurangan pakan 50%, bioflok). Udang ditempatkan sebanyak 40 individu per tangki dan diberi pakan komersial yang mengandung 40% protein selama 30 hari. Hasil menunjukkan bahwa udang pada perlakuan NA (pengurangan pakan 25% dengan bioflok) memiliki berat akhir tertinggi (8,66 ± 0,03 g), biomassa (306,13 ± 14,27 g), dan kenaikan berat (5,74 ± 0,25 g) dibandingkan perlakuan lainnya (P<0,05). NA juga menunjukkan tingkat pertumbuhan spesifik yang lebih tinggi (3,63 ± 0,27 %/hari) dibandingkan K dan NB. Pemanfaatan pakan meningkat dengan rasio konversi pakan yang lebih rendah dan retensi protein yang lebih tinggi pada kelompok NA. Penelitian ini menunjukkan bahwa pengurangan feeding rate pakan sebesar 25% dalam sistem bioflok mengoptimalkan pertumbuhan udang dan pemanfaatan pakan. Penelitian di masa depan harus mengeksplorasi keberlanjutan jangka panjang, variasi komposisi bioflok, dan integrasi teknologi untuk meningkatkan praktik budidaya udang yang efisien dan ramah lingkungan.
Relationship Between Nitrogenous Wastes, Organic Matter, Bacteri-al Abundance, and Protozoan Abundance in Whiteleg Shrimp Inten-sive Farming Ponds Utami, Diah Ayu Satyari; Kusmiatun, Anik; Ilham; Febrianti, Desy; Sudiarsa, I Nyoman; Abrori, Mohsan; Nisa, Andina Chairun; Aras, Annisa Khairani; Jatayu, Diklawati; Kaborang, Yasinta Ega; Budiadnyani, I Gusti Ayu; Nugraha, I Made Aditya; Wahidi, Budi Rianto; Wahyu
Journal of Aquaculture and Fish Health Vol. 15 No. 1 (2026): JAFH Vol. 15 No. 1 February 2026
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v15i1.77343

Abstract

Whiteleg shrimp (Litopenaeus vannamei) dominates global aquaculture production due to its adaptability to intensive systems. However, intensive systems often experience excess accumulation of nitrogenous waste and total organic matter (TOM), which can destabilize microbial communities and affect water quality. While protozoa are known as bioindicators, few studies have explored how their functional composition interacts with nitrogen cycling and production performance in shrimp ponds. This study investigated the relationships between nitrogenous compounds, TOM, bacterial and protozoan abundance in two intensive shrimp ponds (HP: high protozoan abundance and LP: low protozoan abundance). Water quality parameters, including Total Ammonia Nitrogen (TAN), nitrite, nitrate, TOM, and phosphate, were monitored weekly alongside microbial assessments of total bacterial count (TBC), total Vibrio count (TVC), and protozoa abundance. Protozoa were identified microscopically, while shrimp performance was measured by growth, feed conversion ratio (FCR), survival, and productivity. TOM emerged as the primary ecological driver, significantly correlating with Vibrio abundance (r = 0.585, p < 0.05). Although the high-protozoa pond featured greater bacterial biomass and more bacterivorous taxa (e.g., Ciliata, Vorticella), it had lower shrimp productivity. Conversely, the low-protozoa pond dominated by detritivores (Euplotes, Strombidionopsis) achieved superior growth, FCR, and final biomass, despite higher TOM and nitrite levels. These findings suggest that protozoan functional composition, rather than total abundance, critically influences nutrient cycling, microbial stability, and production outcomes. Managing TOM and fostering beneficial microbial loops are essential strategies for sustainable shrimp farming.
Co-Authors Abrori, Mohsan ANIK KUSMIATUN Aras, Annisa Khairani Budi Rianto Wahidi DIAH AYU SATYARI UTAMI Febrianti, Desy Firnaeni, Tata Harijono, Teguh I Gusti Ayu Budiadnyani I Made Aditya Nugraha ILHAM Jatayu, Diklawati Meilya Suzan Triyastuti, Meilya Suzan Nisa, Andina Chairun Ricky Djauhari Sihombing, Mika Azarya Sudiarsa, I Nyoman Tangguda, Sartika Tantulo, Uras Wahyu