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Feasibility Analysis of Freshwater Fish Farming Business Development in Pringsewu District
Get PDFThis research has two aims, the first was to see and analyze the business of freshwater fish farming in Pringsewu District which is feasible or not to be developed. The second aim was to find out whether the freshwater fish farming business in Pringsewu District remain feasible to be developed if there was a decrease in production levels and an increased in production costs. This research analyzes several aspects of business feasibility, namely marketing aspect, production aspect, management aspect dan financial aspect. In the financial aspect, two approaches were used, that were analysis of unpaid business feasibility using the Benefit Cost Ratio (B/C Ratio), Break event point (BEP), Return On Invesment (ROI) analysis tools and discounted business feasibility analysis with the Net Present Value (NPV), Net Benefit Cost Ratio (Net B/C), Internal rate of retur (IRR), Gross Benefit Cost Ratio (Gross B/C), Payback period analysis tools. The results of this study indicate that the aspects of marketing, production aspect, and management aspect have the potential to be developed, as well as the financial aspects with the feasibility analysis of non-discounted shows that the business of freshwater fish farming in Pringsewu District is feasible to be developed. The results of the sensitivity analysis also show that the business is still feasible to be developed despite a decline in production levels and an increased in production costs. Keywords : Business Development, Business Feasibility, Project Evaluation, Freshwater Fish Farmin
Analysis Of Efficiency Of Windu Shrimp Cultivation Business Policulture System In Tugurejo Sub-District Tugu Districts Semarang City
No full textThis study aims to calculate technical efficiency and determine the financial efficiency of the cultivation of windu shrimp with the Polyculture system by farmers in Tugurejo village, Tugu district, Semarang City based on simple investment criteria, namely BC ratio (Benefit Cost Ratio), BEP (Break Event Point), ROI (Revenue On Invensment) to measure how much efficiency the use of capital is against revenue. The method used is descriptive analysis with a questionnaire and field observations. The data used are primary data collected through interviews with respondents and key persons. The sample was 25 people so that all (census) were taken in October 2019-March 2020. The results showed that the BC ratio analysis was 1.64, BEP (Q) tiger prawns were 160.49 kg / Ha per year and for BEP prices IDR 35,680 / kg, BEP (Q) of milkfish as much as 755.25 kg / Ha per year and for BEP prices of IDR 12,175 /kg, ROI is 137.97%> 100%, the tiger prawn cultivation business with an efficient polyculture system in the use of capital to revenue and worthy of cultivation
THE USE OF MANGROVE (Avicennia sp.) FRUIT EXTRACT AS A NATURAL ANTIBACTERIAL MATERIAL FOR THE TREATMENT OF DISEASES CAUSED BY Vibrio parahaemolyticus IN VANAME SHRIMP (Litopenaeus vannamei)
No full textVaname shrimp (Litopenaeus vannamei) has high economical value as an export commodity However, there are obstacles that cause a decline in the level of shrimp exports in the world. One of the obstacle is shrimp disease which is treated using antibiotics. This method might ca-used pathogenic resistance and become a residue when consumed by humans. Avi-cennia sp. fruit extracthas benefits as natu-ral antibacterial ingredient that are safe to treat the shrimp which is infected by the Vibrio parahaemolyticus. In this study, shrimp is infected with Vibrio parahaemo-lyticus immersed using Avicennia sp. with a concentration of 300 mg L-1, 350 mg L-1, and 400 mg L-1 for 21 days plus the control treatment. The concentration of 400 mg L-1 showed better results compare to other con-centration on all observed parameters; fas-ter recovery time, higher survival rate and relative percent survival (RPS), also mild damage on hepatopancreas test. Keywords: Litopenaeus vannamei, antibiotics, Avicennia sp., fruit extract Vibrio parahaemolyticu
WATER QUALITY IN THE NORTH MADURA : IS IT SUITABLE FOR VANNAMEI SHRIMP FARMING OR NOT?
Get PDFIndonesia is one of the countries with the highest potential and production of vannamei shrimp (Litopenaues vannamei) in the world. Therefore, the government continues to improve theactivity of vannamei shrimp farming continuously. This study aimed to determine whether the water quality of the waters in Larangan Glintong Village, Bangkalan-Madura, East Java was suitable for vannamei shrimp farming activities. Water quality was one of the keys for successful vannamei shrimp farming since it could affect the metabolism, reproduction, osmoregulation and stress of the organism. The parameter water quality used in this study was salinity, temperature, and pH. This research was a water quality survey that was carried out for three months (March-May). The result showed that the average water salinity was 30.5 ppt. The average DO and brightness showed 7.02 mg/l and 30.69 cm. The average temperature at there was 29.41oC while the pH valued showed 8.13. The It could be concluded from water quality aspect that pond in Larangan Glintong Village, Bangkalan-Madura could be used for vannamei aquaculture development
EFFECT OF Pilsbryoconcha exilis AS ORGANIC MATTER REMOVAL IN THE RECIRCULATING AQUAPONIC SYSTEM
No full textAquaponics is a combination of aquaculture and hydroponics system. This system is expected to be able to overcome the problems of waste from aquaculture by utilizing Nitrogen (N) and Phosphorus (P) for vegetables. There are several obstacles found in aquaponics systems such as high suspended organic matter produced from the feed residue and fish metabolism. The addition of natural filters, namely freshwater mussels (Pilsbryoconcha exilis) is expected to solve these problems. This research was conducted for 40 days. The design used in this study was Factorial Completely Randomized Design with two main factors namely mussels density as factor-A and time of observation as factor-B. The treatments were P1 (0 mussels density), P2 (15 mussels density), and P3 (30 mussels density) for factor-A while time of observation were factor-B (D-0, D-10, D-20, D-30 and D-40). Each treatment was conducted in three repetition. The results showed that the time observation gave significantly different on water condition changes (P <0.05), which will increase TSS, turbidity and chlorophyll value along with the increasing of time. P exilis in aquaponics was effective in reducing turbidity and chlorophyll concentration (P <0.05). Therefore, aquaponics system with the highest mussels density (P3) with has lower turbidity and chlorophyll value than the one with 0 mussels density (P1).
Study of Community Based Ecotourism Development in Mangrove Area of Mempawah District, West Kalimantan
No full textMangrove forests as natural ecosystems, have high ecological and economic value. Rapidly growing population, causing the needs of human life is increasing, as a consequence of increased development and settlement. This will create pressure on natural resources, where the utilization has not yet taken into consideration any losses that have ecological impacts. Implementation of ecotourism system in mangrove forest ecosystem is an approach in sustainable utilization of mangrove forest ecosystem. The ecosystem suitability index for mangrove tourism in Village Pasir Mempawah Hilir Mempawah District is classified into very suitable (SS) and conditional (SB) categories for ecotourism development. This shows that the mangrove area in the Village Pasir Mempawah Hilir Mempawah District is suitable to serve as a tourist area. An alternative strategy of ecotourism management of mangrove priority in the coastal area of Pasir Village, Mempawah Hilir, Mempawah District, is to increase the effort of mangrove planting on the beach (replanting) in ecotourism development area. Thus, all areas in the location meet the criteria appropriate for mangrove ecotourism areas based on ecological parameters
INVENTARIZATION OF CORAL REEFS IN THE WATERS OF RAKATA ISLAND, KRAKATAU ISLANDS
Get PDFAbstrak Indonesia is an ideal place for coral growth because of the tropical climate. Rakata Island is included in the Krakatau Islands Nature Reserve and Marine Reserve area which is influenced by the volcanic activity of son of Krakatau Archipelago and human activities. Both of these activities will affect the growth of coral reefs. The purpose of this study was to determine the current condition of coral reefs and the diversity of living coral forms on Rakata Island. Collecting data for analysis of coral reef cover using the Line Intercept Transect (LIT) method was parallel to the coastline of Rakata Island at two points. The percentage of live coral cover from points I and II at a depth of 5 meters was 50.69% and 33.80% classified as in good and moderate conditions respectively. While the percentage of live coral cover at a depth of 10 meters at points I and II were 41.90 % and 16.01% whice were in moderate and poor conditions. The coral reefs mostly found in point I were leaf corals (CF) namely Turbinaria reniformis and Turbinaria frondens, while in point II were massive corals (CM) were found i.e. Goniastrea edwardsi, Favia pallida, Montastrea valenciennesi, Favites abdita, Astreopora listeria, and Favites complanata
BIOCONCENTRATION OF CADMIUM HEAVY METAL (CD) ON GREEN MUSSLE Perna Viridis Linn, 1758 CULTIVATED IN PASARAN ISLAND WATERS, LAMPUNG, INDONESIA
No full textPasaran Island waters is the location of green mussel cultivation (Perna viridis), where the waters has the potential to experience heavy metal pollution including Cadmium (Cd). Green mussels are filter feeders and have a slow movement, thus they have the potential to experience heavy metal bioconcentration on their bodies. The aim of this study was to determine the bioconcentration of heavy metal cadmium (Cd) in green mussels (Perna viridis) which were cultivated in the waters of Pasaran Island. Samples were collected in February 2018 in green mussel cultivating cages of Pasaran Island water with 3 and 6 cm mussel size. Sampling was taken at three stations with three replications each. The Cd content was analyzed using AAS method. The results showed that the water content of Cd at the observation location ranged from 0.022 to 0.024 mg/l. The content of Cd of mussel meat is 0.030 to 0.033 mg/kg, the value is below the threshold based on Indonesian National Standard (SNI). The BFC value of 3 cm mussel is 1.33 mg/kg, while the 6 cm mussel is 1.47 mg/kg which indicates that the green mussels on Pasaran Island are accumulatively low on Cd
UNTILIZATION OF Moringa oleifera LEAF EXTRACT ON DECREASING INFESTATION OF Argulus japonicus IN GOLDFISH (Carassius auratus)
Get PDFAbstrak Goldfish (Carassius auratus) is one of the fishes that can be infected by parasites. Commonly, this fish is often attacked by Argulus japonicus ectoparasites. Control of infestation in A. japonicus can be done by utilizing one of the natural ingredients, Moringa oleifera leaf extract, which contains of alkaloids, tannins, saponins and flavonoids. This study aims to determine the effect of M. oleifera leaf extract in reducing the infestation of A. japonicus and the optimal concentration of M. oleifera leaf extract in reducing the infestation of A. japonicus in goldfish (C. auratus). This study used a completely randomized design (CRD) with treatments namely control, 600 ppm, 700 ppm, 800 ppm and 900 ppm with four times of replication. The main parameter is the percentage decrease in infestation of A. japonicus. The results of the research data were analyzed by using ANOVA and followed with the Ducan Multiple Range Test. The results showed that Moringa leaf extract could reduce the infestation of A. japonicus. The optimal concentration of Moringa leaf extract in reducing the infestation of A. japonicus was obtained from a concentration of 700 ppm
DETERMINATION OF WATER QUALITY IN PHYSIC AND CHEMICAL USE STORET INDEX AND POLLUTION INDEX IN COASTAL WATERS DUMAI RIAU PROVINCE
Get PDFThe condition of good water quality is essential to support the survival of organisms that live in it. Determination of the status of water quality needs to be done as a reference in monitoring the water quality pollution.The purpose of this study to analyze and determine the status of water quality physically and chemically in the coastal waters Dumai. The method used in this research is survey method was conducted in December 2018 - April 2019 in the Coastal Water Dumai in Riau province. Sampling sites physical and chemical parameters determined by purposive sampling. Based on consideration of environmental conditions and Dumai City Regulation No. 11 In 2002, it was determined sampling consisted of four stations, with each station there are 5 sampling points were used as replicates. Determining the status of water quality using storet index and the index of pollution. Water quality measurement results About Coastal Dumai use Storet index and the pollution index shows that the coastal waters of Dumai categorized as Heavy Polluted waters