Asian Journal of Fisheries and Aquatic Research
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1022 research outputs found
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Acceptance Level of Spring Rolls Wrapper with the Addition of Patin Fish (Pangasius Sp) Bone Flour as a Source of Calcium
No full textPatin is a commodity fish that is in great demand from year to year. Utilization of fish bone waste has not been done much. Patin bone waste from the fillet industry can be used as flour. Patin bone flour has a high calcium content. This study aims to determine the percentage of patin fishbone flour in the manufacture of spring roll wrapper which is the most preferred by the panelists. The method used was an experimental method with the addition of patin fishbone flour at 0%, 6%, 8%, and 10%. Observations parameters made were the level of preference including color, taste, aroma, texture and tested using the Friedman test and the Bayes method. The addition of patin fishbone powder to spring roll wrapper was significantly different in aroma and taste, but not significantly different in color and texture. The results showed that the addition of 6% patin fishbone flour was the most preferred treatment by the panelists because it had an alternative value of 7.55
Application of Business Model Canvas (BMC) in the Fish Processing Unit of CV. Brightfood Riung Gunung, Bandung City
No full textFish is one of the foods that are favored and consumed by the community. However, fish is a perishable food commodity that requires processing in order to minimize this problem. The fish processing unit of CV. Brightfood Riung Gunung is a small-scale fish processing unit that produces various kinds of processed products using tuna (Thunnus sp) and mackerel (Scomberomorus sp). Tuna and mackerel are fish commodities that easily found many markets business so carry out processing activities using these fish. The data analysis used a business model canvas. The application of business models in the early stages of business management development makes it clear what business managers can do about what will be done with the business to be carried out. This study aims to analyze the business model canvas on the fish processing unit of CV Brightfood Riung Gunung Bandung City. This study uses case study method, which is a study that includes an assessment that aims to provide a detailed description of the background, nature and character of a case. In other words, a case study focuses attention, intensive in one case and detailed. The sampling technique used a purposive sampling. The purposive sampling method is a sampling technique with certain considerations. The selected sample of this study is the owner of the company. The results of this study indicate that the fish processing unit of CV. Brightfood Riung Gunung, Bandung City, has implemented 9 elements of the business model canvas well compared to other similar industries
Distribution, Biology and Ontogeny of Indian River Shad (Tenualosa ilisha)
No full textThe distribution, biology and ontogenic development of the Indian River Shad (Tenualosa ilisha) compared with some other fishes compile in this review. The distribution in the inland waters of Bangladesh, stock/race, movement and migration pattern, size and sex ratio, age of reproduction, maturity and fecundity and ontogenic development of the mouth, digestive tract and accessory gland of T. ilisha discussed in this article. The life cycle of a fish starts after fertilization, but the mouth and digestive tract development start after hatching. Yolk sac larvae (3.83 ± 0.57 mm SL), pre flexion larvae (8.07 ± 1.83 mm SL), flexion larvae (11.50 ± 1.55 mm SL), post flexion larvae (14.72 ± 1.70 mm SL), and juvenile (18.75 ± 3.02 mm SL) were separated into five groups based on morphological characteristics. At the yolk sac stage, the mouth was closed, however at the pre-flexion stage, the larval mouth gape varied between 177 ± 25 and 367 ± 47 µm. The ranges were 241 ± 31 and 497 ± 59 µm, for the flexion stage, 307 ± 38 and 621 ± 74 µm for the post-flexion stage, and 393 ± 61 and 788 ± 119 µm for the early juvenile stage. Development of the digestive tract is complete at the juvenile stage of this species
Phenotypic Colour Variants in Batches of Fingerlings of Clarias gariepinus from Some Commercial Fish Hatcheries
No full textAims: This research seeks to determine the ratio of dark skin and pale skin coloured fingerlings in batches of fingerlings produced in commercial African catfish hatcheries in Makurdi, Nigeria.
Study Design: The study was designed based on a structured questionnaire that was administered to farmers that were selected using random sampling from a list of African catfish farmers.
Place and Duration of Study: The research was carried out in Makurdi town, Makurdi Local Government Area of Benue State, Nigeria. Data collection was done between October 2021 and January 2022.
Methodology: The current study used a blend of questionnaire and physical counting to determine the proportion of dark and pale offspring from five selected fish hatcheries in Makurdi, Local Government Area of Benue State. A sample of 140 to 300 offspring was made upon each visit to the farm (i.e. batch of production) with each farm being visited at least twice depending on the production timetable.
Results: Results show that the farms normally incubated a similar weight of egg (p>0.05) with the range between 258g to 550g in each batch of production. The number of fry produced was scaled to 90% and it ranged from 165075 to 351450. Percentage of dark hued offspring ranged from 80% to 86% while that of pale offspring was between 14% and 20%. There was no correlation between turbidity and the colour classification. There was no significant difference between the farms in terms of incidence of dark or pale hued fingerlings suggesting that the colour proportion is constant within batches of fingerlings.
Conclusion: Dark skin colour is dominant over pale skin colour in the African catfish Clarias gariepinus and water quality does not predict skin colour in this species under culture
Drip Irrigation and Its Effect to Water Quality in Aquaponic Systems
No full textThis study aims to evaluate the effect of drip irrigation on water quality in aquaponics systems. The research was carried out at the Ciparanje Aquaculture Laboratory, Faculty of Fisheries and Marine Sciences, Padjadjaran University. The research method applied is experimental employing Completely Randomized Design (CRD), with six treatments and three repetitions. The treatments in the study included the volume of drip irrigation for Capsicum frutescens plants: A (a positive control employing organic liquid fertilizer), B (negative control without employing liquid fertilizer), C (aquaponics drip irrigation with a water volume of 100 ml/day/plant), D (aquaponics drip irrigation with a water volume of 150 ml/day/plant), E (aquaponics drip irrigation with a water volume of 200 ml/day/plant), F (aquaponics drip irrigation with a water volume of 250 ml/day/plant). Parameters observed in this study consist of water quality in the aquaponics system, including ammonia, nitrate, phosphate, dissolved oxygen, temperature, and pH. The resulting data were analyzed by descriptive analysis. The results showed that water quality evaluations performed were still within the recommended standard for fish culture
Efficacy of Dry Pituitary Gland, Wet Pituitary Gland and the Synthetic Hormone Ovaprim on Labeo catla Breeding
No full textAn induced breeding experiment with Indian major carp, catla (Labeo catla) was conducted to know the efficacies of three different doses of dry Pituitary gland and wet Pituitary gland in comparison to that of ovaprim. Intra- peritoneal injections were given at the base of the pelvic fin with dry PG low dose (DPL), 1 mg/Kg body weight for first dose of female fish and after 6 hours interval second dose (2 mg/Kg of body weight) was administered; at the same time 1 mg/Kg body weight for male. For dry PG medium dose (DPM), 2 mg/Kg body weight for first dose and after six hours interval 4 mg/Kg body weight for female and 2 mg/Kg body weight for male. For dry PG high dose (DPH), 3 mg/Kg body weight for first dose and after 6 hours interval 6 mg/Kg body weight for female and 3 mg/Kg body weight for male fish. Wet PG low dose (WPL), 7 mg/Kg body weight for first dose and after six hours interval 10 mg/Kg body weight for female and 7 mg/Kg body weight for male fish. For wet PG medium dose (WPM), 11 mg/Kg body weight for first dose and after 6 hours interval 15 mg/Kg body weight for female and 11 mg/Kg body weight for male fish. And for wet PG high dose (WPH), 15 mg/Kg body weight for first dose and after 6 hours interval 20 mg/Kg body weight for female and 15 mg/Kg body weight for male fish and ovaprim, 0.25ml/kg and 0.5 ml/Kg of body weight for single dose for male and female respectively. These doses were used for determination of fertilization, hatching and survival rates. The fertilization rates were 83.25 ± 0.85%, 92.01 ± 0.45%, 82.45 ± 1.04%, 83.18 ± 0.68%, 88.59 ± 0.48% and 72.85 ± 0.43% for the doses of DPL, DPM, DPH, WPL, WPM and ovaprim respectively. The hatching rates were 78.58 ± 0.94%, 85.54 ± 0.38%, 74.8 ± 0.22%, 77.89 ± 0.82%, 81.56 ± 0.59% and 71.54 ± 0.48% for the doses of DPL, DPM, DPH, WPL, WPM and ovaprim respectively and the survival rates were 77.24 ± 0.49%, 87.12 ± 0.46%, 73.09 ± 0.42%, 75.8 ± 0.30%, 80.76 ± 0.64% and 69.2 ± 0.77% for the doses of DPL, DPM, DPH, WPL, WPM and ovaprim respectively. Among all the doses of dry and wet PG and the synthetic hormone ovaprim, DPM gave the best result in case of fertilization, hatching and survival rate. So, the induced breeding of catla fish may use dry PG at the dose of 2 mg/Kg body weight as first dose and 4 mg/Kg of body weight as second dose
Study of Nanochitosan (Definition, Manufacture, Analysis of Characteristics and Utilization): Review
No full textNanochitosan is a nanoparticle of chitosan with a size between 100-400 nm. Nanochitosan has a higher antibacterial ability than ordinary chitosan. The manufacture of chitosan into nanochitosan can be done by ionic gelation method, namely the complexation of polyelectrolyte between positively charged of chitosan and negatively charged of sodium tripolyphosphate. The morphology of nanochitosan is in the form of a whole sphere and has typical chitosan functional groups such as amine, hydroxyl and carboxyl groups. Utilization of Nanochitosan can be used as a natural preservative because it has antibacterial properties in the form of edible coating. Fish filets coated with nanochitosan edible coating can extend the shelf life and maintain freshness which can be seen from the physiochemical characteristics
Replacement of Fish Meal with Fermented Soybean Meal in Fish Feed: A Review
No full textSoybean meal is a source of vegetable protein to replace fish meal which is widely used because it has a high protein content (26.7 -65.5%), balanced amino acids and easy to find compared to other plants. Besides being high in protein, soybean meal also contains anti-nutrients which can inhibit growth, feed effectiveness, and lower nutrient utilization in fish. So it is necessary to process feed ingredients to remove anti-nutritional content. Fermentation can be a solution for utilizing soybean meal by reducing the anti-nutrient content and crude fiber to produce components that can be utilized properly, such as protein, β-glucan, vitamins, mannan oligosaccharides, organic acids, and antibiotics. The type of fermented soybean meal that is widely used is Bacillus spp., Aspergillus spp., Lactobacillus spp., and yeast. The purpose of this literature review study was to determine the effect of replacing fish meal with fermented soybean meal in fish feed. Several types of fish that have been fed using fermented soybean meal include seabasses, green snapper, mud grouper, rainbow trout, pomfret star, tilapia, and turbot. Fermentation of soybean meal to fish can increase growth rate, gut morphology, gut microecology, feed digestibility, feed preferences, fish innate immunity and produce antimicrobial peptides. Soybean meal fermentation as a substitute for fish meal has been shown to have a good effect on fish so that it can continue to be developed to increase the utilization of soybean meal
Hydrolysis Enzyme of Alternative Ingredients for Fish Feed: A Review
No full textAlternative raw materials have high potential as a source of feed protein that can support growth. Alternative raw materials have advantages such as low cost, abundant availability but the use of alternative raw materials in feed formulations is often limited by the presence of anti-nutritional substances and a relatively high crude fiber content of 11-28%, so further processing is needed to improve the quality of feed ingredients from alternative materials. The purpose of this literature review study is to determine the advantages of alternative feed ingredients for fish that have been hydrolyzed by enzymes. Evaluation studies of improving the quality of feed ingredients through enzymatic hydrolysis give varying results. The best enzyme hydrolysis can reduce the crude fiber content in coconut cake by 67.8%. Enzyme hydrolysis in alternative feed ingredients can also affect growth in fish due to increased digestibility in fish. The best growth was obtained in tilapia at 4.34% by hydrolysis of the protease enzyme. Enzyme hydrolysis is proven not to have a negative impact on several types of fish so that enzyme hydrolysis can be applied to improve the quality of alternative feed ingredients in fish feed formulations. However, enzyme hydrolysis has drawbacks, namely it only works specifically and depends on temperature and pH
The Use of Exogenous Enzymes from Plants in Feed for Various Cultivation Organisms; Literature Review
No full textThe presence of enzymes in the feed will increase the digestibility of fish to feed ingredients. Fish need enzymes to help speed up the process of digestion and hydrolysis. Enzymes function as catalysts that can increase the speed of chemical reactions. Therefore, exogenous enzymes are needed that can accelerate the protein hydrolysis process to accelerate fish growth. Several studies have been conducted regarding enzymes derived from plants that aim to accelerate fish growth. It is hoped that this journal can provide information related to the use of several enzymes that have been used for various cultured organisms