Mahendra, I Gede Rezza
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THE INFLUENCE OF STOCKING DENSITIES ON WHITE SHRIMP (Litopenaeus vannamei) REARED USING INTENSIVE SYSTEM: PRODUCTION PERFORMANCE AND WATER QUALITY Insani, Liga; Jatayu, Diklawati; Mahendra, I Gede Rezza; Wiyasa, Made Wisnu; Kurnianto, Bayu; Ardiansyah, Ardiansyah
Jurnal Perikanan Unram Vol 15 No 1 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i1.1291

Abstract

ABSTRACT The increasing trend of vaname shrimp cultivation production encourages farmers to increase their cultivation production. The success of vaname shrimp cultivation can be seen from the ability to measure the capacity of shrimp biomass in maintenance activities and stocking density patterns based on the maximum capacity of the pond in each plot. The purpose of this study was to analyze vaname shrimp cultivation activities for a period of 2 years (2023-2024) in intensive system ponds based on different stocking density patterns at 140 shrimp/m2 and 190 shrimp/m2. This study was carried out for 6 cultivation cycles, each cycle was carried out for 100 days. The results of statistical tests showed that the shrimp stocking density pattern had a significant effect (p <0.05) on biomass, productivity, survival and feed conversion ratio. The average survival rate of 140 shrimp/m2 stocking density was 85.33%, biomass was 3,327.75 kg, FCR was 1.44 and productivity was 30.8 tons/ha. The average survival rate with a stocking density of 190 shrimp/m2 was 73.66%, biomass 1,981.87 kg, FCR 1.59 and productivity 12.38 tons/ha. This shows that biomass, SR, and productivity decreased while FCR tended to increase in cultivation with a stocking density of 190 shrimp/m2. The results of water quality showed an increase in the Total Organic Matter value of 110-250 mg/l at a stocking of 190 shrimp/m2. This shows that there is an increase in organic matter in the maintenance pond which affects the survival of shrimp in the pond so that it affects the biomass and productivity of whiteleg shrimp. A stocking density of 140 shrimp/m2 can be recommended for application in intensive whiteleg shrimp cultivation. Keywords: intensive system, stocking density, water quality, whiteleg shrimp
Performance of Growth, Survival Rate, and Behavioral in Seabass (Lates calcarifer) Seed Production with Artemia Enrichment using Sardinella Oil Nisa, Andina Chairun; Ilham, Ilham; Aras, Annisa Khairani; Insani, Liga; Jatayu, Diklawati; Febrianti, Desy; Mahendra, I Gede Rezza
Journal of Aquaculture and Fish Health Vol. 14 No. 3 (2025): JAFH Vol. 14 No. 3 September 2025
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v14i3.68807

Abstract

Essential nutrients for seabass (Lates calcarifer) growth can be derived from the live feed Artemia sp. Artemia sp. It is reported to contain protein levels between 40 and 55%, carbohydrate levels between 15 and 20%, and a lipid content of around 0.4%. Enrichment of Artemia sp. It is necessary to improve its nutritional value and promote seabass larval growth. Sardinella fish oil is one option for enriching Artemia sp. This study aims to determine the optimal dosage of Sardinella oil for Artemia sp. Enrichment to achieve optimal growth and survival rates in seabass (Lates calcarifer) larvae. The study employed a completely randomized design (CRD) with five treatments and three replicates. The treatments were: unenriched Artemia (K-), Artemia + 0.9 g/l Squalene Fish Oil (K+), Artemia + 1 ml Sardinella Oil (A), Artemia + 1 ml Sardinella + 1 ml Egg Yolk (B), and Artemia + 0.5 ml Sardinella Oil + 0.5 ml Egg Yolk (C). The highest absolute weight was observed in treatments A and C, both recording 2.02 g (±0.20 g and ±0.09 g, respectively). Regarding absolute length, treatments A and C also showed the highest values, measuring 1.89 cm (±0.17 g) and 1.90 cm (±0.17 g), respectively. The highest survival rate (SR) was likewise found in treatments A (34.67% ± 2.63%) and C (38.08% ± 3.89%). Based on the tested treatments, the optimal dose for seabass growth and survival (SR) was determined to be treatment C, which included 0.5 ml of Sardinella oil and 0.5 ml of egg yolk.