Good Quality Fish Research Articles

THE BREEDING TECHNIQUE OF TAWES FISH (Barbonymus gonionotus) IN GOVERNMENT UNIT OF TECHNICAL IMPLEMENTING SERVICE OF FRESHWATER AQUACULTURE IN JEMBER

The tawes fish (Barbonymus gonionotus) is one of the natural aquatic wealth of Indonesia has thick meat and a high market price. It meat boasts a higher protein content of 18.43% compared to carp (16%) and tilapia (18.72%). Tawes fish has the characteristic of being economically valuable and has the potential to be cultivated because it does not require too much land and can be cultivated throughout the year. In order to obtain good quality fish seeds in large quantities, the operational activities of fish breeding must be carried out carefully and planned. The activities of fish breeding began with the preparation of the pond, the selection of broodstock, spawning, hatching, larval rearing, and harvesting. Some parameters that can be measured in hatchery activities include fecundity, fertilization rate (FR), hatching rate (HR), food conversion rate (FCR) and survival rate (SR). Data collection techniques conducting direct observation, interviews, or observations about Pond preparation, broodstock selection, spawning, larval rearing, feeding and harvesting with the parameters that were measured in fish breeding activities were fecundity, Fertilization Rate (FR), Hatching Rate (HR), Food Conversion Ratio (FCR), and Survival Rate (SR). Based on the results of this research the fecundity value obtained was 24,489 eggs/parent, FR was 54%, HR was 65%, FCR was 3.9, and SR 60%.

Fish Feed Production in Panembangan Village, Banyumas Regency

Fish feed is the largest component in freshwater fish cultivation. Feed costs reach 60%-70% of total production costs. The availability of sufficient fish food, both in quality and quantity, is one of the key factors in the success of fish farming. Good quality fish feed not only has high protein content, but also has good physical properties, one of which is buoyancy. Mitra is the Mina Mandiri group in Panembangan Village, Cilongok District, Banyumas Regency which has problems in producing quality fish feed. This activity aims to increase the knowledge and skills of partners in making good quality fish food, which has a protein content that suits the fish's needs and has good buoyancy. The method by which activities are carried out includes coordinating the preparation of service activities with partners, socializing activity programs, implementing activities, and evaluating activity results. Partners are quite enthusiastic about this activity. Partners actively discuss and share experiences related to fish feed production and other fish farming issues. The results of the activity show an increase in partners' knowledge and skills in producing quality fish feed by 50%, based on pre & post tests. Service activities will continue to be carried out as a form of concern and transfer of science and technology to the community, as well as the implementation of the tri dharma of higher education.

What Are the Prospects of Sustainable Aquaculture in the Niger Delta, Nigeria?

Globally, the wild capture fishery is declining, and aquaculture is expanding to help fill the gap, especially in Asia and developing countries. However, the sustainability of the aquaculture sector is raising questions, and answering those questions requires the adoption of new technologies and better management practices. Nowhere is this seen more clearly than in Nigeria where aquaculture generally means catfish, the most farmed species of which is clarias garipinus because it is a native species, and it plays an important role in the average Nigerian diet. However, small-scale catfish aquaculture businesses are affected by various challenges that threaten the sustainability of the sector. Prominent among these challenges are: poor management skills; lack of good quality fish seed supply; high cost of fish feed; inconsistency in government policy and limited regulations; lack of consideration about the impacts of aquaculture practice on the environment causing water pollution and environmental degradation, and insecurity of investment against natural disasters such as floods. This research investigated these challenges in eight sites in two states (Delta and Bayelsa) in the Niger Delta region of Nigeria. Data were gathered from a survey questionnaire, key informant interviews, personal observations, and published literature. Key findings showed that the sustainable development of the small-scale catfish farming industry in Delta and Bayelsa states is vulnerable to several threats that prevent it from fulfilling its undoubted potential to grow into a much larger sector, which could significantly reduce Nigeria’s reliance on fish imports, as well as relieve pressure on the overfished marine catch sector. Nevertheless, despite the threats, most catfish farmers are committed to their work and deserve the support of the government to enable them to succeed.

Assessment of Major Problems Faced by Coastal Farmers of India

The coastal ecosystem is important from both economic and ecological points of view owing to the abundance of natural resources, and diversity and its role in supporting livelihoods. However, coastal agriculture faces multiple challenges such as cyclones, flooding, salinity, seawater intrusion, etc. which affect the production systems and livelihoods of farmers. To identify and rank the problems faced by coastal farmers, we undertook this research study using an online questionnaire with Google-Form and collected responses from 69 respondents covering all the coastal states and Union Territories (UTs) during 2022. The responses were analysed using Garrett’s technique for ranking the reported problems. Our study indicated that the problem of pests & diseases (I), weather-related problems (II) and marketing & prices (III) were the major problems faced by farmers in the agriculture & horticulture sector. While in the animal husbandry & poultry sector, fodder shortage, higher feed cost and lower productivity & profitability were the major problems. In the field of fisheries, shortage of good quality fish seeds (I), lower profitability (II) and lower catch (III) were identified as the major problems.

Bimbingan dan Pelatihan Fermentasi Pakan untuk Budidaya Ikan Lele dengan Probiotik sebagai Upaya Peningkatan Hasil Produksi Masyarakat di Koto Luar, Kecamatan Pauh, Padang

The use of feed in fish farming is often inefficient because fish only partially consume the feed spread in ponds, so it becomes waste for the aquatic environment and, even worse, will trigger new diseases. The Department of Chemistry's of Universitas Andalas team was trying to overcome this problem by increasing the efficiency of fish feed. For the feed to work optimally and produce good quality fish weight, it is necessary to modify the nutrition of the fish feed, one of which is by adding probiotics through a fermentation process. The method used in this activity includes training, mentoring, and demonstration plots in feed fermentation and counselling regarding the right time to feed. This activity targets fish farmers in the Koto Luar area, Pauh District, Padang, with a fish culturing group, "Family Sepakat", as the partner. Feed fermentation was carried out with probiotic starters such as Bacillus sp., saccharomyces cerevisiae, L. fermentum, L. plantarum, and W. paramesenteroides. This activity improved catfish growth, and the death rate was lower than in catfish farming without feed fermentation treatment.

Social Media Marketing Strategy in Facebook to Increase Sales Numbers for SABCANTY

Indonesia is a country with the second longest coastline in the world, in total of 99,083 km, so there is no doubt that Indonesia has abundant fishery resources. Fish cultivators in Indonesia need good quality fish feed, and the fish feed sellers will reach them by using social media community of this industry to introduce and promote the products. Social media marketing is all marketing activities used to build recognition and memory for brands or businesses that easy to access. This research will focus on finding the right strategy implementation for fish feed selling company to use in social media platform. There are 4 strategies that are commonly used; community building, marketing campaign, platform advertising, and celebrity endorsement. Qualitative method will be used in this research, with data collected by structured interview towards the fish feed seller and fish cultivators’ community in a specific social media platform then analyzed using the three step coding. This research will be also validated through experts in social media marketing strategy. This research is expected to find the right social media marketing strategy implementation in specific platform that affects the number of sales for fish feed selling company.

Effect of Post Slaughter Time Interval (PSI) on the Quality of Heteroclarias

ABSTRACT Post-slaughter time interval (PSI) plays an important role in the resultant quality of fish product. However, there is little information on the effect of PSI on heteroclarias, which is the most cultured fish in the study area. Forty-two samples of heteroclarias (average weight 500 ± 10.0 g) were collected, euthanized using salt, and stored at ambient temperature (27 ± 3°C); samples were collected at 0, 4, 8, 12, 16, 20, and 24 hours for sensory, histological, proximate, biochemical, and microbial assessments using standard procedures. Data obtained were analyzed using SPSS 16.0 version. Most sensory attributes were retained for 12 hours PSI; however, crude protein, minerals, and pH were reduced significantly (p < .05) with increased PSI, and the total volatile base nitrogen, peroxide value, and free fatty acid increased significantly (p < .05) with increased PSI. The total viable count, total fungal count, total coliform count, fecal coliform count, and Escherichia coli also increased significantly (p < .05) with increased PSI but were within acceptable limits for good-quality fish. Heteroclarias should not be delayed beyond 12-hour PSI before preserving or processing in order to get best-quality raw material (fish) for consumers.

Resiliensi Bisnis UMKM Produk Olahan Ikan selama Masa Pandemi: Peluang dan Kendala

Indonesia's marine potential is an asset for community livelihoods and business prospects for fish processing in coastal areas. One of them is UD. Barokah as an MSME in the field of selling high quality fish and diversifying the business of selling fish crackers with business partners in other cities. This study aims to explore how business resilience is in coastal entrepreneurs by analyzing opportunities and constraints in business continuity during the pandemic. This research design uses an exploratory qualitative approach. Data collection, through: semi-structured interviews with UD owners and managers. blessing. Semi-structured interviews by asking structured questions and have been prepared as a guide to find problems. Possible interview questions differ from the script, but according to the context of the topic of discussion. The results of this study stated that during the UD. Barokah experienced a surge in sales turnover. Business opportunities made from marine fish are supported by the ability of business managers to drive business. UD's business constraints. The blessing during the pandemic is the limited production of crackers, due to the scarcity of supply of good quality fish due to weather factors Indonesian.

Extraction of collagen bone fish (Thunnus albacares) into gelatin with CH3COOH treatment

Indonesia is one of the countries in Southeast Asia with the largest Muslim population in the world and the number is estimated at around 86%. This amount is actually a separate opportunity in marketing halal products and one of them is gelatin from fish skin. Gelatin is a protein extracted by partial hydrolysis of collagen, with the main component being protein derived from the skin of meat or fish, animal or fish bones and hides. The purpose of this study was to produce good quality fish skin gelatin with acetic acid treatment and soaking time of 12, 24 and 48 hours. The method used in this research is the experimental method on a laboratory scale. The results obtained in this study were that the rendemen of fish skin gelatin ranged from 7.50 to 7.60% with CH3COOH treatment. Meanwhile, the best pH value is acetic acid immersion with a time of 48 hours with a pH value of 2.8-6.2. Furthermore, the best organoleptic values ​​for attributes (color, texture and scent) are as follows; 6.5; 6.2 and 6.5 with 48 hours of immersion.

Parenthood as a Window of Opportunity for Dietary Changes: Perspectives From Uruguayan Parents.

Research on behavioral and social science has demonstrated that transitions throughout a person's life course, as the life event of becoming a parent, represent an opportunity for dietary changes. However, research in this area has been mostly restricted to developed European and North American countries and has shown ambiguous results. The present work aimed to gain an in-depth understanding on the changes in eating habits caused by the transition to parenthood and to explore factors influencing those changes in Uruguay, a Latin American country. Forty-two in-depth interviews with Uruguayan parents from diverse social-economic backgrounds were conducted. The narrations by the interviewees evidenced mostly positive changes during three stages in the transition: pregnancy, the first months with the baby, and the beginning of complementary feeding. Most informants perceived changes mainly in terms of increased consumption of fruits, vegetables, and pulses; increased consumption of homemade meals; and decreased consumption of ultra-processed foods, fast foods, and fried foods. Reasons for these changes included adaptation of meals to the child's needs and schedule, feeling of responsibility for the child's health, and willingness to be a good role model. Factors influencing changes in eating habits were identified in some levels of the socioecological model and included socioeconomic status; price of fruits, vegetables, and fish; low accessibility of good quality fish; perceived time pressure; father's low interest on healthy eating; social support; and access to nutrition information. Findings suggest that parenthood represents a window of opportunity for favorable changes in eating habits. However, barriers constraining those changes should be addressed by stakeholders.

Bioconversion of sugarcane vinasse into fungal biomass protein and its potential use in fish farming

The intensification of pisciculture operation requires the provision of an adequate supply of good quality fish feed. Many commercial feeds consist in fishmeal or soybean meal-based formulations, but they constitute costly protein sources. Hence, dietary transition from conventional fish ingredients towards fungi protein sources produced from vinasse could address concern about both fish feed cost and the detrimental environmental effects of distillery waste disposal. This work investigated the nutritional and toxicological aspects of Aspergillus sp. V2 grown on vinasse to be used as a possible fish feed. Proximate analysis of biomass obtained from 50% (v/v) residue supplemented with 2.0 g/L (NH4)2H2PO4 revealed a total proteins content (34.0%), fat (4.7%), ash (15.8%), crude fiber (4.0%), moisture (0.3%) and carbohydrate (45.2%) within acceptable levels for commercial fish diets. The biomass protein composition was similar to soybean meal, containing all the essential amino acids (EAAs) for fish feeding. Finally, total aflatoxins level was 6.8 ± 0.2 µg per kg of dry weight, which does not exceed the permissible levels established for feedstuffs. These findings provide evidence that biomass of Aspergillus sp. V2 produced from vinasse could meet the nutritional requirements for use in fish diet, reducing economic pressures for the pisciculture and distilleries.

Influences of salt and koji contents on chemical properties of fish sauce from tilapia frames

Influences of salt (5%–20% w/w of digested material) and soybean koji (3%–10% w/w of digested material) on chemical properties of fish sauce from tilapia frame after 4 months’ fermentation using response surface methodology was studied. Results found that the salt content showed quadratic effect on ammonia nitrogen and amino nitrogen while linear effect on formaldehyde nitrogen and NaCl contents of samples were observed (P < 0.05). Estimation response surfaces revealed that the formaldehyde nitrogen, ammonia nitrogen and amino nitrogen contents decreased while NaCl content increased as salt content increased. For the effect of koji, the significant effect of koji content on non-enzymatic browning value of fish sauce samples in linear manner was observed (P < 0.05). The non-enzymatic browning value of sample increased as koji content increased. The both of salt and koji contents showed the linear effect on total acidity value while two-factor interaction terms on total nitrogen of sample was found (P < 0.05). For the consumer acceptability testing, an acceptance score of the incubated fish sauce sample with a values of 6.50–7.43 (like slightly to like moderately) was obtained. The results showed that it is possible to make a good quality fish sauce from tilapia frame by-product.

Constraints of health management of commercially cultured high valued fishes

This study was performed to understand the constraints of health management of commerciallycultured high value fishes including gulsha (Mystus cavasius), shing (Heteropneustes fossilis) and koi (Anabastestudineus). One hundred farmers were interviewed through structured questionnaire in Mymensingh andJashore districts. Most of the farmers practiced polyculture of gulsha and shing with carps and monocultureof koi high densities. All the three species suffered from a number of serious diseases under farmingconditions. Most prevalent clinical signs of diseases were ulcerative hemorrhagic lesion, whitishappearance over body surface, ventral and mouth reddening and fin rot. The most susceptiblespecies to disease was shing with a higher average mortality of 43.33% followed by gulsha(36.71%) and koi (38.76%). Diagnosis of disease was the single most important constraints ofhealth management followed by lack of farmer’s knowledge on fish health and diseases, presence ofhuge number of poor quality medicine, ineffectiveness and indiscriminate use of such medicine,lack of farmer’s ability on application of medicine and absence of qualified fish health adviser.Lack of good quality fish seed, feed and water were identified as the main resource problemsassociated with fish health management. The study also identified a number of general constraintsof farming of high value fish which included low price of fish, higher feed cost, and outbreak ofdiseases, high land tax, electricity bill and marketing problem. Further studies should focus on thedevelopment of strategies for better health management practices for sustainable commercial cultureof high value fishes.

Lock-ins to the dissemination of genetically improved fish seeds

Well-functioning fish seed systems are crucial for human nutrition and improved livelihoods. Yet fish seed systems have received considerably little attention in the diffusion process for genetically improved strains. This study examined how seed systems of genetically improved fish strains function, assessed constraints faced, and explored entry-points to increased diffusion. To address these objectives, the study combined the seed systems performance assessment framework with innovation systems thinking. Data came from participatory multi-stakeholder workshops and interviews with tilapia hatchery operators and grow-out farmers in Bangladesh. We found that tilapia seed production and dissemination was profitable and cost-effective indicating a business case for supply chain actors. However, there were several binding constraints including low adoption of elite broodstock, vulnerability to weather shocks and diseases, poor quality of complementary inputs, intermittent electricity supply, hidden costs of seed transportation, and limited market access. These constraints and their causes interacted, creating systemic lock-ins through blocking mechanisms related to incomplete enforcement of regulatory frameworks to control hatchery practices and quality of inputs; limited knowledge about broodstock management, quality seed production, and disease management; weak adaptive capacity to weather shocks; and limited access to credit. Projects, programs, and policies targeted at accelerating adoption of good quality fish seed should focus on the following important aspects. First, strengthening institutional capacity to monitor and enforce quality control. Second, increasing advocacy and knowledge transfer about benefits and sources of elite broodstock. Third, promoting adoption of better management practices by hatcheries and farmers including adaptation to weather shocks. Fourth, leveraging partnerships with local service providers as intermediaries. Fifth, using social networks for information diffusion among farmers.

Induction Of Ovulation Using Ovaprim And Its Impact On Reproductive Parameter Of Clarias gariepinus

Sustainability of the aquaculture industry can be secure through the induce breeding technique. One way that induce breeding can do is to increase the rate of maturation and ovulation in making sure the availability of good quality fish seed all year round. Here, we investigate how Ovaprim hormone impact the reproduction of Clarias gariepinusincluding spawning rate, fecundity, hatching and survival rate. For this purpose, Six broodstocks were divided in three experimental treatments and injected intramuscularly with different doses of Ovaprim hormone of T1: 0.25ml/kg for female and 0.125ml/kg for male, T2: 0.5ml/kg for female and 0.25ml/kg for male and T3: 1.0ml/kg for female and 0.5ml/kg for male. According to our results, broodstock injected with Ovaprim hormone of dose of T3: 1.0ml/kg for female and 0.5ml/kg for male showed higher eggs production and hatching rate compared to other treatment. The results of this study suggest that a dosage of 1.0ml/kg Ovaprim for female and 0.5ml/kg for male have a better effect on the reproductive parameter of Clarias gariepinus.

Effects of Addition of Skipjack Meat to Water Levels, Protein Levels and Ash Levels of Floss Sweet Corn

The aim of this study was to determine the concentration of tuna fish that can produce shredded which has good quality. The method used in this study was a completely randomized design (RAL) with 3 treatments and 3 replications. The treatments in this study were A1 (375 g of skipjack meat) A2 (250 g of skipjack meat) and A3 (125 g of skipjack meat). The results of this study resulted that A3 treatment with a concentration of 125 g of skipjack fish meat provided good quality fish with a water content of 7,17%, ash content of 2,72% and protein content of 33,22%.

Nutrient content of on-farm formulated NIle tilapia (Oreochromis Niloticus) feeds: implications for the aquaculture industry in Kenya

Due to the high costs and the unavailability of good quality fish feeds in Kenya, farmers have opted to use cheaper, locally available on-farm formulated feeds. In spite of this, farmers continue to incur losses probably due to poor nutritive quality of these on-farm feeds. Furthermore, literature on the proximate composition and appropriateness of on farm formulated feeds for raising farmed fish in Kenya is scanty. Motivated by these reasons, this study sought to investigate the proximate composition of on-farm formulated Nile tilapia feeds and selected commercial fish feeds used in Bomet, Kericho and Nakuru Counties of the Rift Valley Region of Kenya and compared the proximate composition with the official nutrient composition of fish feeds. The method of feed formulation used was also investigated using semi-structured questionnaires. The study also estimated the weight of fish harvested at the end of a production cycle. The results revealed a significant difference between the sampled feeds’ moisture, crude protein and mineral contents and the legislated nutrient levels of the commercial feeds commonly used in the counties. There was also a significant difference between the crude protein content of feeds in the three counties (P < 0.05). More than 50% of respondent farmers in the three counties used Pearson Square Method for fish feed formulation, while the rest used the trial and error method. The mean weight of fish during harvest was 311.5±155.8 g with fish from Kericho County weighing significantly lower than those from Nakuru and Bomet Counties (P < 0.05). Most of the on-farm formulated feeds from the three counties do not meet the recommended nutrient requirements for raising Nile Tilapia. This may be contributing to the observed low weights of the fish harvested, the low fish production and the apparent stagnation of the aquaculture sub-sector in Kenya. The study recommends the formulation of good quality fish feeds through the use of proper methods and appropriate ingredients. This could be achieved through monthly farmers’ trainings on best aquaculture practices. Key words: On- farm formulated feeds, fish feed quality, Nutrients, Nile tilapia, Kenya

Physicochemical, microbiological and sensory characteristics of fish sauce from spined anchovy (Stolephorus tri)

Recently, the consumer demand for imported Thai fish sauce is increasing inBangladesh domestic market. To satisfy potential consumer demand, underutilized marine fish ofthe Bay of Bengal can be used in this regard to produce fish sauce locally. A study was,therefore, undertaken to prepare fish sauce from underutilized spined anchovy (Stolephorus tri,locally called ‘kata phasha’) using 25% (w/w) salt in earthen containers and characterized essentialquality parameters. Fermentation was continued for 7 months, and physicochemical,microbiological, and sensory characteristics of the product during processing were studied. At the endof fermentation, moisture and mineral content of the sauce reached to high values of 68.54 ±0.35% and 22.56±0.35%, respectively with a concomitant decrease in protein (5.03 ± 0.05%).Total volatile base nitrogen (TVB-N) and total nitrogen (TN) values, on the other hand, reached18.42±0.00 mg/100 g and 0.76±0.02 g N/100 ml, respectively with a relatively high bacterialload of 7.14±0.02 log cfu/ml. Sensory evaluation conducted by a group of untrained panelistsrevealed high acceptability of the fish sauce in terms of colour, flavour, taste (e.g. saltiness,bitterness, sweetness, sourness and umami), clearness, liquidity and overall acceptability. It isconcluded that low-valued fish like spined anchovy of the Bay of Bengal can be used as a rawmaterial to produce good quality fish sauce.

Guidelines for Freshwater Pond Management in Bangladesh

The pond aquaculture sector in Bangladesh expands rapidly. Total fish production from pond aquaculture increasing day by day. Bangladesh ranks fifth in aquaculture production and becomes fourth in the tilapia production in the world. Total fish production in Bangladesh was about 4.27 million MT in 2017-18 fiscal years and the pond aquaculture production was about 1.9 million MT which contributes about 44.43% of the total fisheries production in 2017-18. That means pond aquaculture contributes a lot in Bangladesh fisheries sectors. For getting proper outcome from the pond aquaculture some basic guidelines should be followed during pre-stocking, stocking, and post stocking management of freshwater pond. Firstly, pond should be prepared properly before stocking of fish seed like aquatic weeds and predators should be eradicated with properly constructed the pond bottom and dike and then liming and fertilization should be done for making a better culture environment for fish. Good quality fish seed should be sock to the pond and feeding should be done properly. Periodic sampling for examining the proper growth and any disease infestation occurs should be done. Liming and fertilization should be done after stocking of fish seed if needed. Harvesting and marketing of fish should be done by considering some factors to get good profit.&#x0D;

STRATEGIES AND ROLE OF LOCAL GOVERNMENT IN IMPROVING THE COMPETITIVENESS OF TRADITIONAL FISHERMEN IN PANDEGLANG, BANTEN

The aims of study to explore in depth: a. strategies and role of local government supports the formation of fishermen groups and group performance in enhancing the competitiveness of traditional fishermen; b. Strategies undertaken by local governments to improve competitiveness so as to realize the prosperity of traditional fishermen, c. group communication model between local government, traditional fishermen group, and partners This study use qualitative research methods with a critical paradigm referring to the critical concepts of Marxist thought. The results showed that the government through the Ministry of Marine Affairs and Fisheries Republic of Indonesia has issued Government Regulation no. 50 Year 2015 on empowering small fishermen and small fish farmers. The Ministry of Marine Affairs and Fisheries has an agenda to improve the welfare of traditional fishermen and to optimize their potentials in groups, which are handed down to the provincial and district fisheries departments. Pandeglang District Government as the object of research through Fisheries Department has the authority to manage, utilize, and conserve marine and fishery resources for the welfare of Pandeglang community, especially fisherman community, cultivation, processing and marketing of fish, and to increase contribution for PAD (District Owned Revenue). Fisheries Department develop strategies for improving the welfare of traditional fishermen, among others, encourage the formation of fishermen cooperatives with legal status. Socialization of the use of fishing gear which is not prohibited by the government. This is because there are still many traditional fishermen in Pandeglang who use Cantrang that can threaten the sustainability of marine ecosystems. The local government through related offices has not been actively involved in providing assistance to traditional fishermen so that they have high competitiveness such as maintaining good quality fish quality, stable catch quantity, environment of fishery and marine areas that is maintained so as to ensure the sustainability of existence fish in the sea. The results of this study have implications on the preparation of roles and strategies of local governments in improving the competitiveness of traditional fishermen adapted to local elements so that traditional fishermen become prosperous.