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NURSERY OF WHITE SHRIMP (LITOPENAEUS VANNAMEI) WITH BIOFLOC SYSTEM witoko, pindo; Mahmudah Noor, Nuning; Aziz, Rahmadi
Jurnal Pengabdian Perikanan Indonesia Vol 3 No 2 (2023): Jurnal Pengabdian Perikanan Indonesia
Publisher : Program Studi Budidaya Perairan Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppi.v3i2.2569

White shrimp culture (Litopenaeus vannamei) has very good prospects to be developed so that the availability of quality juveniles with a sustainable quantity is very necessary for aquaculture activities. White shrimp nursery has several constraints because in the implementation process it uses high stocking density so the amount of feed needed is higher. The condition of using high feed can have an impact on the quality of aquaculture used. Waste products from metabolism and uneaten feed residues, especially nitrogen waste can be toxic to shrimp. To reduce the risk of toxic waste in shrimp there are several technologies that can be used, one of which is biofloc technology. This study aims to determine the growth and survival rate (SR) of white shrimp nursery using biofloc technology. The study was conducted using a permanent ponds container coated with a tarpaulin with a size of 3m x 5m x 1.2m as much as 2 pieces. Each pond filled with seawater with a salinity of 30 ppt as much as 12,000 liters is equipped with 24 aeration points and a microbubble. White shrimp juvenile used Post Larva size 10 with an average weight of 0.01 grams with a stocking density of 1,500 ind/m3(18,000 ind/pond). Maintenance time for 28 days. During maintenance, commercial feed is given at a dose of 100% -5% of the total weight of biomass per day. The results showed an average final length and weight are 5.15 cm and 2.32 gram/ind with a Survival rate (SR) of 89.7%.

NURSERY OF WHITE SHRIMP (LITOPENAEUS VANNAMEI) WITH BIOFLOC SYSTEM witoko, pindo; Mahmudah Noor, Nuning; Aziz, Rahmadi
Jurnal Pengabdian Perikanan Indonesia Vol 3 No 2 (2023): Jurnal Pengabdian Perikanan Indonesia
Publisher : Program Studi Budidaya Perairan Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppi.v3i2.2569

White shrimp culture (Litopenaeus vannamei) has very good prospects to be developed so that the availability of quality juveniles with a sustainable quantity is very necessary for aquaculture activities. White shrimp nursery has several constraints because in the implementation process it uses high stocking density so the amount of feed needed is higher. The condition of using high feed can have an impact on the quality of aquaculture used. Waste products from metabolism and uneaten feed residues, especially nitrogen waste can be toxic to shrimp. To reduce the risk of toxic waste in shrimp there are several technologies that can be used, one of which is biofloc technology. This study aims to determine the growth and survival rate (SR) of white shrimp nursery using biofloc technology. The study was conducted using a permanent ponds container coated with a tarpaulin with a size of 3m x 5m x 1.2m as much as 2 pieces. Each pond filled with seawater with a salinity of 30 ppt as much as 12,000 liters is equipped with 24 aeration points and a microbubble. White shrimp juvenile used Post Larva size 10 with an average weight of 0.01 grams with a stocking density of 1,500 ind/m3(18,000 ind/pond). Maintenance time for 28 days. During maintenance, commercial feed is given at a dose of 100% -5% of the total weight of biomass per day. The results showed an average final length and weight are 5.15 cm and 2.32 gram/ind with a Survival rate (SR) of 89.7%.

PROFIL FITOKIMIA DAN KANDUNGAN METABOLIT BIOAKTIF PADA SARGASSUM PADA POLARITAS PELARUT BERBEDA Muliawati Handayani; Nuning Mahmudah Noor; Pindo Witoko; Upy Raudatul Jannah
Jurnal Penelitian Pertanian Terapan Vol 26 No 2 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i2.4786

Sargassum is recognized as a valuable source of bioactive secondary metabolites; however, quantitative comparisons of solvent-dependent extraction efficiencies remain limited. The present study rigorously assesses the extraction performance of methanol and hexane for phenolics, tannins, and major phytochemical constituents. Samples were subjected to seven-day maceration followed by phytochemical screening, determination of total phenolics using the Folin–Ciocalteu method, and quantification of total tannins with a tannic acid standard. Methanol exhibited a markedly higher extraction yield (4.23%) compared with hexane (1.13%). Furthermore, methanol extracts contained substantially greater levels of phenolics (16.13 mg GAE/g) and tannins (36.86 mg TAE/g) than those obtained with hexane, which yielded only 0.26 mg GAE/g and 0.42 mg TAE/g, respectively. The resulting phytochemical profiles highlight a clear polarity-driven selectivity, wherein methanol preferentially extracts polar metabolites, while hexane favors non-polar constituents. Collectively, these findings demonstrate that methanol is the superior solvent for obtaining Sargassum extracts enriched with bioactive compounds.

PEMBUATAN PAKAN IKAN MANDIRI BERBASIS BAHAN BAKU LOKAL DI DESA BABATAN KECAMATAN KATIBUNG LAMPUNG SELATAN Indariyanti, Nur; Hartono, Dwi Puji; Witoko, Pindo; Noor, Nuning Mahmudah; Febriani, Dian; Tirtana, Denta
Farmers : Journal of Community Services Vol 7, No 2 (2026): Farmers: Journal of Community Services
Publisher : Unpad Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/fjcs.v7i2.70307

The Akbar Sejahtera Fish Farming Group (Pokdakan), located in Babatan Village, Katibung District, South Lampung Regency, is engaged in raising catfish using independent feed. Based on a situational analysis, the problem faced is that the feed quality does not meet SNI standards, characterized by easily disintegrated feed, high crude fiber content (>15%), and low protein content (<25%). Efforts to improve the quality of independent feed are carried out through dissemination of feed production using local raw materials such as trash fish, bran, and corn. This activity aims to improve the knowledge and skills of farmers in producing quality feed that meets SNI standards. Methods used include lectures, discussions, and demonstrations. The results of the activity showed an increase in the knowledge and skills of partners, resulting in the ability to produce higher-quality feed. The feed protein content increased to 30%, crude fiber to 8%, the feed texture was improved (not easily disintegrated), and the Feed Conversion Ratio (FCR) improved from 1.6 to 1.1, thereby increasing feed efficiency and catfish production.

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