Rasio konversi pakan benih ikan kerapu cantang (Epinephelus fuscoguttatus x Epinephelus lanceolatus) dengan pemberian dosis recombinant growth hormone (rGH) yang berbeda

Hendriansyah, Ahmad; Putra, Wiwin Kusuma Atmaja; Miranti, Shavika

doi:10.31629/intek.v2i2.525

Cited by 7 publications

(4 citation statements)

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“…The salinity value obtained is close to the optimal value between 30 ̶ 34 ppt. Salinity is a chemical parameter of water that affects the osmoregulation system of fish so that changes in salinity will interfere with fish growth and metabolism [16]. The pH values obtained in all treatments were close to the optimal value range between 7.3 ̶ 7.8.…”

Section: Water Qualitymentioning

confidence: 64%

Determining of water bioremediation dosage in recirculating water system for Cantik Grouper (Epinephelus fuscoguttatus × Epinephelus microdon) nurseries

Astari

Ismi

Mahardika

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The use of recirculating aquaculture system (RAS) in nurseries of cantik grouper (Epinephelus fuscoguttatus × Epinephelus microdon) has the potential to make the culture environment more stable and maximize production perfomance, but the work of RAS decreases with the accumulation of waste in the water used. Remediation of water with microorganisms (bioremediation) can improve the performance of RAS. This research aims to determine the best dose of commercial probiotics in water bioremediation to be used in nurseries of cantik grouper seeds. This research was conducted for 7 days using a completely randomized design with four treatments and three replications. Treatment doses of probiotics tried: 3 ml/m3, 6 ml/m3, 9 ml/m3 and 12 ml/m3. The container used was a concrete tank measuring 1 m × 2 m × 0.8 m filled with 1 m3 of seawater and 3.2±0.3 cm of cantik grouper seeds with a density of 500 fish/m3. The addition of probiotics up to 12 mL/m3 had no significant effect (P>0.05) on the survival rate of cantik grouper fish for 7 days of rearing, ranging from 99.1% to 99.3%. The best results of the bioremediation process were obtained with the addition of 6 mL/m3 probiotics with the lowest range of ammonia and nitrite about 0.0896–0.9303 mg/L and 0.0977–8.4880 mg/L. The addition of a probiotic dose of 6 mL/m3 can inhibit the growth of pathogenic bacteria such as Vibrio spp. in water at the beginning, middle, and end of maintenance reached 2, 48, and 140 CFU/mL.

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Section: Water Qualitymentioning

confidence: 64%

Determining of water bioremediation dosage in recirculating water system for Cantik Grouper (Epinephelus fuscoguttatus × Epinephelus microdon) nurseries

Astari

Ismi

Mahardika

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Effects of fish metabolism that occur, such as triggering respiratory movements, high levels of oxygen consumption, and high excretion, result in fish requiring more energy. The different stocking densities in the given treatment did not affect the temperature and salinity during maintenance (Hendriansyah et al 2018).…”

Section: Discussionmentioning

confidence: 88%

Increasing The Stocking Density of Grouper Nurseries for Aquabusiness Efficiency in Recirculating Aquaculture System (RAS) with Bioremediation

Astari

Budiardi

Ismi³

et al. 2022

HAYATI J Biosci

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Water quality improvement was carried out by means of recirculation and bioremediation systems in grouper nurseries with high stocking density, thereby increasing production performance. The goal of this study was to evaluate the effectiveness of aquabusiness by analyzing the rise in grouper nursery stocking density using RAS and bioremediation systems. The test parameters consist of production performance, blood glucose levels, physic-chemistry-biology of water quality, and business efficiency based on productivity and business analysis. Treatment of 1,000 fish/m3 increased survival, blood glucose levels, total bacteria, Vibrio spp., ammonia, nitrite, and all productivity parameters. But it lowers all growth parameters, pH, and dissolved oxygen values. The recirculation system with bioremediation at up to 1,000 fish/m3 of stocking boosted the profit by 2.64 times. and 14.97% more efficient than 500 fish/m3 which could not be matched by the high production performance.

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“…Changes in salinity will alter the osmoregulation system of fish, which affects fish growth and metabolism. Salinity is a chemical characteristic of water [24]. Treatment A, which is a flowthrough system with regular water changes, greatly affects the drastic decrease and increase in salinity.…”

Section: Salinitymentioning

confidence: 99%

Dynamics of water quality in grouper nurseries with flow through, recirculation and bioremediation systems

Ismi,

Astari,

Mastuti

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The flowthrough system, a daily water exchange, has high risk in fluctuation of water quality. Moreover, the risk could impact the seed productions, especially in grouper nurseries. Recirculation and bioremediation systems are satisfying technique to maintenance the water quality. The aim of this research was to analyse the effectiveness of flowthrough, recirculation and bioremediation systems in grouper nursery for water quality and grouper seed production. The research was conducted with three treatments and four replications as follows: A. flowthrough, B. recirculation and C. recirculation with bioremediation. The research was conducted in a completely randomized design for 40 days. The best water quality in treatment C: Salinity ranged from 30-35 g/L, ammonia reached 0.0726-1.8978 mg/L, and inhibited the growth of Vibrio spp. up to 2.580 CFU/mL. The results showed that the best average value was obtained by treatment C with a survival rate of 94.8±0.4%, length growth rate of 0.110±0.003 cm/day, weight growth rate of 0.175±0.013 g/day, specific length growth rate of 2.02±0.04%, specific weight growth rate 5.56±0.28%, total length 8.0 cm, total weight 7.91 g, and feed conversion ratio 0.73±0.07.

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Rasio konversi pakan benih ikan kerapu cantang (Epinephelus fuscoguttatus x Epinephelus lanceolatus) dengan pemberian dosis recombinant growth hormone (rGH) yang berbeda

Cited by 7 publications

References 0 publications

Determining of water bioremediation dosage in recirculating water system for Cantik Grouper (Epinephelus fuscoguttatus × Epinephelus microdon) nurseries

Determining of water bioremediation dosage in recirculating water system for Cantik Grouper (Epinephelus fuscoguttatus × Epinephelus microdon) nurseries

Increasing The Stocking Density of Grouper Nurseries for Aquabusiness Efficiency in Recirculating Aquaculture System (RAS) with Bioremediation

Dynamics of water quality in grouper nurseries with flow through, recirculation and bioremediation systems

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