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THE EFFECT OF ADDITIONAL DOSES OF CURCUMA FLOUR (Curcuma xanthorrhiza Roxb) IN FEED ON THE GROWTH OF GOURAMY (Osphronemus gouramy) FRY
Full text linkThe purpose of this study was to determine the optimum content of the addition of curcuma flour with different doses to the feed on the growth of gourami fry (Osphronemus gouramy). The method used in this study was a completely randomized design (CRD) experimental method, which consisted of 5 treatments with 3 replications. The treatment used was treatment (A) without giving curcuma flour (control), (B) giving curcuma flour at 2.5%/kg feed, (C) giving curcuma flour at 5%/kg feed, (D) giving curcuma flour ginger at 7.5%/kg feed, (E) giving curcuma flour at 10%/kg feed. The results of analysis of variance (Anova) showed that the addition of the flour at different doses had a significant effect (P<0.05) on the growth of gouramy fish fry. The results showed that the addition of curcuma flour at 7.5%/kg of feed gave the best results with the highest absolute weight growth of 15.11 ± 0,42 g, the highest absolute length growth of 3.92 ± 0,42 cm, the feed conversion ratio of 1.95 ± 0.11, and survival of 100%. Keywords: Gouramy fish, curcuma flour, growth, feed
THE LENGTH-WEIGHT RELATIONSHIP OF Butis sp. IN THE TAMBUN RIVER, TOLITOLI DISTRICT, CENTRAL SULAWESI
Full text linkButis sp. is a type of fish that possesses physical characteristics such as small scales and a yellowish belly. Information regarding the existence and growth of this type of fish is still limited to the Tambun River, Tolitoli Regency. Analyzing the length and weight of the fish is one of the methods used to determine the biological conditions and fish stocks, there by facilitating the management of biodiversity sustainability. The aim of this study was to determine the relationship between the length and weight of Butis sp. in order to understand fish growth patterns. This research was carried out for 2 months in Sungai Tambun, Tolitoli Regency, Central Sulawesi Province. The location for collecting sample were divided into 3 stations. The test parameters observed were the relationship between length and weight and habitat conditions. The research results of Butis sp. in Sungai Tambun, Tolitoli Regency showed a positive allometric growth pattern (b= 3,25). The water quality in the Tambun River still supports the growth of Butis sp. (temperature 25-28oC, pH 5,5-8,5).Keywords : Biodiversity, fish biology, growth, positive allometric
THE CRUSTACEAN'S EXPORT-IMPORT MAPPING OF FISH QUARANTINE AND INSPECTION AGENCY (FQIA) JAKARTA I ON 2021-2022 PERIOD
Full text linkIndonesia's crustacean has great potential fisheries business. The depletion of fisheries natural resources needs to be solved to avoid overfishing, especially for crustaceans. The study aim was to analyze crustacean diversity and mapping its products on export and import markets, as well as to analyze the sustainability of crustacean export-import across Indonesia. The study was conducted at FQIA Jakarta I on January until February 2023. The descriptive analysis method was used. The results of the study showed that Indonesia's fisheries export were higher than import activities. On crustacean exports, the highest destination country for lobster (Panulirus sp.) is Cina, the highest destination country for crab (Portunus pelagicus) is the USA, the highest destination country for mud crab (Scylla serrata) is Cina, and the highest destination countries for mantis shrimp (Squilla mantis) are Hongkong and Cina. Meanwhile, for imported crustaceans, snow crab (Chionoecetes opilio) came from Japan, and American lobster (Homarus americanus) came from Canada and USA. The overfishing has not occurred as illustrated for fishing grounds in Indonesia. It indicated by the average of annual catch value which has not higher than MSY catch. Keywords: Crustacea, fish market, fishing ground, annual catch, sustainable
SENSORY CHARACTERISTICS OF SHEREDDED SPICED FISH FORMULATIONS WITH DIFFERENT PROCESSING TREATMENTS
Full text linkTilapia (Oreochromis niloticus) is a type of fish cultivated by local people in Lake Ranau, West Lampung Regency, Lampung Province. Fish is easily damaged by chemical and microbiological processes, so proper handling and processing is needed to extend its shelf life. Shredded spiced fish is an innovative diversification of shredded fish product made from tilapia fish ori-ginating from Lake Ranau with added of multi-spices. Multi-spices are known to have high antioxidant content, so they can improve the quality and develop the taste of shredded spiced fish product. The multi spices seasoning formulation and process stages greatly influence the characteristics of the shredded produced. This research aims to study the formulation and processing treatment of the sensory characteristics of the best shredded spices fish. Determining the best formulation and processing treatment was determined using the sensory test method, namely a scoring test involving 30 panelists, then the data was processed using Microsoft Excel 2021. The result showed that the shredded spiced fish product with sample code 212 (without stir-frying) produced the best characteristics with a texture parameter value of 3.85; fragrance 4.05; colors 4.85; and tasted 4 with a total score of 16.75. Keywords: Multi spices, organoleptic, process stages, sheredded fish, tilapia
PURIFICATION OF KROSOK SALT (CRUDE SOLAR SALT) THROUGH RECRYSTALLIZATION METHOD WITH ADDITION OF DIFFERENT CONCENTRATIONS OF SLAKED LIME (Ca(OH2))
Full text linkPurifying krosok salt (crude solar salt) is an essential step in the food and pharmaceutical industry to ensure product quality. One of the methods used for the purification of krosok salt in this study was recrystallization, involving the addition of slaked lime (Ca(OH)2) at various concentrations. Recrystallization entails dissolving salt crystals in water, followed by filtration to separate impurities from the clean salt solution. This purified salt solution is then heated to produce purer salt crystals. The aim of this study was to analyze the quality content of salt in the yielded pure salt. The significance of this research lies in its contribution of new knowledge regarding simple traditional salt processing methods, which can yield higher-quality salt with significant economic value. In this process, Ca(OH)2 was added at concentrations of 0.1%, 0.08%, and 0.06% to assess its effect on krosok salt purification. The research methodology employed experimental methods. The study's results indicated that the NaCl level test yielded an average value of 96.7% with a C concentration of 0.06%. The highest avera-ge value of 97.686% for the degree of whiteness was observed at a C concentration of 0.1%. Magnesium content averaged 0.07% at a C concentration of 0.06%, while calcium content averaged 0.058% at the same concentration. Keywords: Krosok salt, recrystallization, betel lime, salt quality
THE MACROZOOBENTHOS COMMUNITY STRUCTURE AT SITU CIBEUREUM, SOUTH TAMBUN DISTRICT, BEKASI REGENCY, WEST JAVA PROVINCE
Full text linkHuman and industrial activities increase the amount of waste or pollutants in water, damaging the environment. Macrozoobenthos can be used as bioindicators of water quality. This study aimed to determine the water quality at Situ Cibeureum using chemical, physical, and biological parameters. Using a purposive sampling method, samples were taken four times at 14-day intervals from four station points. The results indicated that Situ Cibeureum was moderately polluted, with the highest abundance of macrozoobenthos found in the species Filopaludina javanica, moderate diversity of macrozoobenthos, a high uniformity index, and low dominance. The FBI value at Situ Cibeureum indicated slightly poor to fair water quality, with values ranging from 5.40 to 6.20. The average water temperature was 29.7℃-30.6℃. The average turbidity was 22.37-39.04 NTU. The average BOD value was 8.5-10.5 mg/l. The dissolved oxygen concentration ranged from 5.6 to 7.6 mg/l. The lowest average pH value was 6.7 at station 2. The pH value of the substrate ranged from 6.5 to 7.5. The C-organic content was 2.89-4.42%. The N-total concentration ranged from 0.21 to 0.53%. The macrozoobenthic species found during the research were Filopaludina javanica, Pomacea canaliculata, Melanoides tuberculata, Pilsbryconcha exilis, and Thiara scabra. Keywords: Bioindicator, C-organic, Filopaludina javanica, purposive sampling
STUDY ON MATERNAL TESTOSTERONE HORMONE IN FEMALE BROODSTOCKS AND EGG OF CATFISH (Clarias gariepinus)
Full text linkThis study aimed to track maternal testosterone hormone in catfish (Clarias gariepinus) eggs as an endogenous factor causing cannibalism. The fish used were female catfish broodstocks that had never been spawned before, with an average weight of 450.0±62.00 g and a total length of 35.4±3.53 cm. The male broodstock had an average weight of 810.0±85.00 g and a total length of 46.1±5.83 cm. The broodstock were maintained separately by sex in 3×1×1 m3 hapa nets, with a stocking density of two females and one male (2:1 ratio). The study employed a completely randomized design (CRD) with treatments consisting of females injected with propylene glycol (0 µg/L body weight) (A), females injected with the hormone 17α-MT (1 µg/L body weight) (B), and females injected with the hormone 17α-MT (2 µg/L body weight) (C), each treatment replicated three times. For the observation of hormone derivatives, egg samples were collected during the pre-spawning (day 90) and post-spawning (day 91) periods. The results indicated that the testosterone levels in the catfish eggs were higher during the pre-spawning period (A: 0.6±0.03 ng/mL; B: 0.7±0.07 ng/mL; C: 1.2±0.01 ng/mL) compared to the post-spawning period (A: 0.3±0.03 ng/mL; B: 0.1±0.00 ng/mL; C: not detected). This finding suggests that, even without the injection of the 17α-MT hormone, testosterone is present in catfish eggs, albeit in small amounts.Keywords: Aggressiveness, cannibalism, inherited hormones
CONCENTRATION OF BENZALKONIUM CHLORIDE IN DONAN RIVER CONTAMINATED WITH DOMESTIC WASTE
Full text linkThe distribution of benzalkonium chloride (BAC) in inland waters has not been widely studied, despite its known dangerous effects on organisms. This study was conducted to determine the concentration of BAC in the Donan River, Cilacap, which receives significant input from domestic waste, particularly from the food industry. The study employed a quantitative descriptive method to analyze the presence of BAC in the river, with sampling stations selected using the purposive sampling method to ensure comprehensive coverage. Samples were collected from five different stations along the Donan River, revealing BAC concentrations at station 1 ranging from 0.128 to 0.140 µg/l, station 2 from 0.213 to 0.237 µg/l, station 3 from 0.163 to 0.190 µg/l, station 4 from 0.176 to 0.210 µg/l, and station 5 from 0.240 to 0.247 µg/l. These findings indicate that the concentration of BAC in the Donan River is comparable to levels found in other rivers worldwide, where the presence of BAC has been documented. The study highlights the need for regular monitoring of BAC levels in inland waters, given its potential ecological impacts. The elevated levels of BAC, especially in areas receiving substantial domestic waste, suggest that the discharge from the food industry and other domestic sources significantly contributes to the contamination. Keywords: domestic waste, ecology, micro pollutants, toxicology, water pollution
THE EFFECT OF LAMTORO LEAF FLOUR (Leucaena leucocephala) IN FEED ON THE GROWTH OF TILAPIA (Oreochromis niloticus)
Full text linkTilapia is favored for its rapid growth and adaptability to diverse aquatic environments, making it a widely cultivated fish. In fish farming activities, feed provides the largest contribution to the total production cost. So that farmers must use alternative feed to reduce feed costs. One alternative feed for tilapia that is easy to obtain, affordable and sustainably available is lamtoro leaves. The aim of this research was to determine the effect of adding lamtoro leaf flour to feed at different concentrations on the growth of tilapia (O. niloticus). The average weight of tilapia at the beginning of the study was 5,7 grams. This research was conducted for 40 days starting in May until June 2023, taking place in Kertayasa Village, Cijulang District, Pangandaran Regency. The method used in this research was an experimental method using a completely randomized design (CRD) with 4 treatments and 3 replications, namely treatment A: 100% commercial feed (control), treatment B: commercial feed + 5% lamtoro leaf flour, treatment C: commercial feed + 10% lamtoro leaf meal, and treatment D: commercial feed + 15% lamtoro leaf meal. Parameters observed included daily growth rate (SGR), absolute length growth, and water quality. The results indicated a significant effect (P<0.05) on the daily growth rate (SGR) by incorporating lamtoro leaf flour into the feed. The highest treatment, observed in treatment C at 50%/day, resulted in the maximum absolute length growth of 4.63 cm. The water quality parameters during the study were in the proper range for the life of tilapia (O. niloticus). Providing lamtoro leaf flour in feed does not have a negative effect on growth and water quality. Keywords: Tilapia fish, lamtoro leaf meal, growth
ANALYS FINANCIAL FEASIBILITY OF KOI FISH SALES BUSINESS IN JAVA KOI CENTER, CIMAHI CITY, WEST JAVA
No full textJava Koi Center is one of the largest local koi carp business in Cimahi City. This research aims to analyze the financial feasibility of Java Koi Center, Cimahi City, West Java. This research uses a quantitative descriptive analysis. The data collected in this study are aspects that exist in business feasibility and the main thing is the financial aspect. In the financial aspect, the data studied are business capital, investment costs, operational costs, Revenue Cost Ratio (R/C) and Break Even Point (BEP). To analyze financial feasibility, investment assessment criteria are used including Net Present Value (NPV), Internal Rate of Return (IRR), Net Benefit Cost Ratio (Net B/C) and Payback Period (PP). Based on data analysis, it was obtained that the R/C value was 1.90 and Break Even Point was obtained BEP Sales Mix for Kohaku koi totaling 23 heads with total sales of Rp28.716.952, Sanke koi was 21 heads at a price of Rp18.796.550, Hi-utsuri totalling 15 heads with a price of Rp13.157.584, Bekko koi fish was totalling 13 heads at a price of Rp7.518.620 and Sushui koi fish 17 heads at a price of Rp10.024.827. In the calculation of financial feasibility analysis, NPV value was obtained at Rp275,228,463, IRR value of 81%, Net B/C value of 3.07 and the Paypack Period for 1.17 years. So from the results of this research, Java Koi Center business is very feasible and profitable to run and develop in the future