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e-Jurnal Rekayasa dan Teknologi Budidaya Perairan
Published by Universitas Lampung
ISSN : 23023600     EISSN : 25975315     DOI : -
Core Subject : Science,
Computer Science & IT Earth & Planetary Sciences
e-JRTBP is a periodical journal that serves as a means of scientific communication and to disseminate research results. Fields of study include fisheries cultivation, management, and utilization of fishery resources. e-JRTBP is published twice a year, February and October.
Arjuna Subject : -
Articles 2 Documents
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Search results for , issue "Vol 10, No 1 (2021)" : 2 Documents clear
COMPARISON OF GROW-OUT METHODS OF SAND LOBSTER (Panulirus homarus) WITH RECIRCULATION AQUACULTURE SYSTEM (RAS) AND FLOW-THROUGH (FT): STUDY OF BIOLOGICAL ACTIVITIES Bambang Widyo Prastowo; Manja Meyky Bond; Betutu Senggagau
e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Vol 10, No 1 (2021)
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrtbp.v10i1.p1-14

Abstract

Aquaculture technology using Recirculating Aquaculture System (RAS) is basically a technology for fish farming by reusing water used in production. This technology is based on the use of mechanical and biological filters, and this method in principle can be used for all species cultivated in aquaculture such as fish, shrimp, shellfish and others. This study was carried out at Station for Investigation of Fish Health and Environment (LP2IL) Serang’s field test facility starting from June to November 2020 (110 days of sand lobster grow-out period). In this study, the RAS system used for grow-out of sand lobster uses a series of containers, compartments, tanks and equipment for water treatment with the following purification stages (1) sedimentation containers; (2) physical filtration; (3) biological filtration, (4) disinfection of water by UV irradiation, (5) removal of CO2, (6) clean water reservoirs and (7) tanks for grow-out of sand lobster. In this study, a series of tests were carried out on several biological activities parameters of sand lobster including growth weight and length, FCR, SR, molting and biomass, which were measured every two weeks during grow-out period. From the results of this study activity, it is found that the biological parameters of sand lobster grow-out with RAS is improving when compared to sand lobster grow-out in flow through water system (FT).
EVALUATION OF THE VALUE OF AMMONIA, NITRATE, AND NITRITE ON CULTIVATION MEDIA OF CATFISH FED MAGGOT Larasati Putri Hapsari; Asep Suryana; Moch Nurhudah; Dzikri Wahyudi; Taufik Hadi Ramli
e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Vol 10, No 1 (2021)
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrtbp.v10i1.p15-

Abstract

Water quality is a limiting factor of life for aquatic biota, especially biota that lives in a pond. Therefore, water quality management is very necessary so that cultivation activities, especially ponds can continue and do not cause negative impacts on the surrounding environment. Various factors can decrease the water quality of aquaculture ponds one of which is from the remnants of feed and fish manure. Feed is one of the contributors to the dissolved organic matter in the cultivation pond. Maggot or black shoulder fly larvae are one of the alternatives that can be used as fish feed. Maggot has a high animal protein content of 30-45%, so it is very effective to be used as an alternative to additional feed in fish farming. The purpose of this research is to find out the difference in pond water quality between ponds by using maggot and pond feed by using pellet feed. The data taken in this study is primary data using the Complete Randomized Design (RAL) method with 3 treatments and 3 replays in each treatment. These treatments include Full Maggot Control (MU), 50% pellet, and 50% maggot (PU). Data obtained include; ammonia. Nitrites, and nitrates. The results showed that the average final value of ammonia, nitrite, and nitrates respectively treatment is KU ( 0.22 mg / L, 0.44 mg/L, 3.667 mg/L), PU (0.022 mg/L, 0.042 mg/L, 3.433 mg/L), MU (0.046 mg/L, 0.028 mg/L, 2.653 mg/L). The results illustrate the conclusion that the provision of maggots as an alternative and additional feed can improve the quality of aquaculture water.

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