Indonesian Journal of Aquaculture Medium

KELAYAKAN DAN PENDAPATAN USAHA IKAN BANDENG DI KELURAHAN BANDAR BATAUGA KECAMATAN BATAUGA KABUPATEN BUTON SELATAN

Bahtiar Hamar — 2023-11-04

Bandar Batauga Village is one of the areas in Batauga District, South Buton Regency, based on data on the number of local residents who earn their living as fish farmers. The pond area in Bandar Balauga Village which is used for pond cultivation is approximately 4 hectares more than the potential pond area of 18 hectares in Batauga District. Based on a survey, it was found that there were 40 traditional fish farmers using a polyculture system who cultivated milkfish. The aim of the research is to determine the income of the milkfish business in Bandar Batauga Village, Batauga District, South Buton Regency. And to find out if the milkfish business in Bandar Batauga Village, Batauga District, South Buton Regency is worth pursuing. The research was carried out in Bandar Batauga Village, Batauga District, South Buton Regency. The results of the research show that the population of Bandar Batuga sub-district in 2020 is 1200 people consisting of 661 men, 539 women with 310 heads of families. The majority of the population is of productive age (12-60 years), namely around 920 people. The population aged 0-23 years is 520 people or 43.33% of the population aged up to 24-47 years is 300 people or the population aged 48-70 years is 380 people. Milkfish production with total fixed costs m per season is IDR 250,000. variable costs 36,000 000. Total production costs 36,250,000. The income of milkfish farmers is IDR. 33,750,000 in 1 production season. The conclusion of this activity is an analysis of the milkfish farming business based on the R/C Ratio, so a calculation of 1.9 is obtained. This value shows every cost incurred by RP. I or provide revenue of 1.9, thus the milkfish business is worth pursuing and developing.

PENGARUH EKSTRAK MENIRAN Phyllanthus niruri PADA DAYA TETAS TELUR IKAN MAS Cyprinus carpio L. DENGAN WAKTU PERENDAMAN BERBEDA

Adella Spextania Fatian — 2023-11-04

Goldfish (Cyprinus carpio) is a freshwater fish species that is highly favored in aquaculture due to the ease of its seed production, and the demand for goldfish seed sales is increasing. A constraint that affects the success rate of goldfish farming is the emergence of fungal infections during egg hatching stages. One of the efforts that can be made to prevent fungal infections during goldfish egg hatching is by immersing the eggs in meniran extract (Phyllanthus niruri) for a certain duration to achieve the best results. The purpose of this study was to determine the effect of the duration of meniran extract immersion on carp eggs, which provides the best hatching rate and larval survival and is free from fungal attacks. The test materials used were meniran extract solution and carp eggs. The method used was an experiment with a completely randomized design (CRD) with 5 treatments, each with 3 replications with different durations of meniran extract immersion. Treatments A (0 minutes), B (10 minutes), C (20 minutes), D (30 minutes), and E (40 minutes) The results of the study showed that the immersion of Phyllanthus niruri extract solution had a significant effect (P 0.05) on the hatchability and survival rate of Cyprinus carpio with regards to the prevalence of fungus but did not have a significant effect (P > 0.05) on the yolk sac absorption time. The optimal immersion time for Phyllanthus niruri extract on Cyprinus carpio eggs with regards to the prevalence of fungus, hatchability, and survival rate of the larvae was in treatment D (30 minutes), which resulted in a prevalence of fungus of 5.33 2.52%, a hatching rate (HR) of 94.54 2.52%, and a larval survival rate (SR) of 93.1 1.62%.

TEKNIK PENGGEMUKAN KEPITING BAKAU (Scylla serrata) MENGGUNAKAN SISTEM APARTEMEN DI CV. ISTANA KEPITING, KAB. BONE

Darul Aqza — 2023-11-04

Efforts to fatten Mangrove Crabs, still need to be developed because Mangrove Crabs from fishermen's catches, their bodies are less contained, weight becomes less attractive to consumers, so the economic value decreases. Therefore, the author chose the title Mangrove Crab Fattening Technique (Scylla Serrata) Using Apartment System and Financial Analysis at Cv.Istana Crab, Kab.Bone, South Sulawesi. With the aim of evaluating the technical aspects of fattening Mangrove Crab (S.serrata) by using the Apartment system. Evaluating the fattening cultivation performance of Mangrove Crabs (S.serrata) by using the Apartment system by showing good live growth rate results with Avirage Daily Growt (ADG) of 2-3 g / day. Analyzing the financial aspects of fattening Mangrove Crab (S.serrata) by using the Apartment system with a total profit in one year of Rp.45,420. Identifying problems and compiling proposals for mangrove crab fattening interventions (S.serrata) by using the Apartment system with the Fishbone analysis method there are several factors that are the problem of not achieving SR targe in the company including human factors (Man) that lack discipline, methods (Methods) that are not good in handling and controlling water quality, tools (Machines) that still have some tools less than capacity, and materials (Materials) that need to be selected for good and healthy seeds based on company goals.

DINAMIKA KUALITAS AIR HARIAN PADA KOLAM IKAN NILA (Oreochromis niloticus) DI BALAI BENIH IKAN LOKAL (BBIL) KOYA BARAT DISTRIK MUARA TAMI KOTA JAYAPURA

Vyona Mantayborbir — 2023-11-04

This research aims to determine the daily dynamics of water quality in tilapia cultivation ponds at the West Koya Local Fish Seed Center (BBIL), Muara Tami District, Jayapura City. This research used two earthen ponds with a size of 25 x 50 m, and a water depth of 30-50 cm, a water volume of 100 L in one pond. Tilapia fish (Oreochromis niloticus) with an average length of 20 cm and weight of 243 grams were used in this study. Feed at a rate of 3% of fish biomass is given three times a day. The water quality parameters observed in this study were water temperature measured using a digital thermometer, dissolved oxygen using a DO meter DO 30N, water acidity using a pH meter, pH-240L, SERA aqua-test kit used to measure ammonia and nitrate. This research shows that the water quality parameters observed are normal according to the needs of tilapia fish. So it can be concluded that the water quality in the tilapia rearing pond at the West Koya Local Fish Seed Center (BBIL), Muara Tami District, Jayapura City is controlled and suitable for the growth and survival of the tilapia (Oreochromis niloticus) being cultivated.

EVALUASI SISTEM DAN PENGELOLAAN PRODUKSI BENIH IKAN KOI (Cyprinus carpio) DI OMAH KOI FARM INDONESIA

Agung Luthfi Fauzan — 2023-11-04

Koi fish (Cyprinus carpio) is a freshwater ornamental fish commodity that has important economic potential, both nationally and internationally. Breeding is an activity in cultivation to produce seeds which are very decisive at the next stage of cultivation activities. The purpose of this study was to evaluate the system and management for koi fish seed production at Omah Koi Farm Indonesia. The test parameters measured were fecundity, fertilization rate (FR), hatching rate (HR), seed survival, seed quality, and water quality. The hatchery process includes pond preparation, parent selection, spawning, hatching eggs, rearing larvae, harvesting larvae, stocking larvae, feeding, feeding seeds, harvesting seeds, selecting seeds, and managing water quality. The results of the Kohaku and Showa fecundity calculations were 30,000 and 35,000 items respectively. The FR value obtained is 90,71% and HR is 82,93%. The average survival of koi seeds aged 45 days was 91,75% with an average of 150 high quality (HQ) seeds, 450 grade A seeds, and 450 grade B seeds. The temperature range in the larval rearing ponds was 25-27 0C, the water pH ranged from 7.9-8.5, DO ranged from 5.0-6.0, and ammonia was 0.01.