Sanitation of fish farms and prevention of fish diseases by pond drying with the use of fish and grass rotation

2016 ◽  
Vol 3 (3) ◽  
pp. 380-384
Author(s):  
Наумова ◽  
A. Naumova ◽  
Наумова ◽  
A. Naumova
Keyword(s):  
Comparative Research ◽  
Silver Carp ◽  
Fish Farm ◽  
Fish Production ◽  
Fish Ponds ◽  
Fish Farms ◽  
Commercial Fish ◽  
Causative Agents ◽  
Annual Frequency ◽  
One Year

Objective of research: to present the actuality and novelty of application of fish and grass “rotation” because this allows to reveal new data on pond drainage planning which is the most effective in sanitation of the fish farm. Materials and methods: to determine the most effective cycle for the summer drying of ponds, we studied ecological and epizootological features of fishing ponds, which had been used after drying within 1 and 5 years. As research object served 8 fish ponds: 4 drained ponds under crop (40 ha), 4 — overflowed (40 ha) and filled with one-year carps (2,5-З thousand ind./ha) and silver carps (1,2-1,4 thousand ind./ha). Results and discussion: The results of comparative research on anti-epizootic efficacy of pond drying at different periodicity of 1 and 5 years with the use of fish and grass “rotation” are provided. Data on decreased invasion of fishes (carp, silver carp) by parasites, absence of causative agents of infection, improved blood indicators, increased fish production at annual pond drying (with the use of fish and grass “rotation”) compared with the pond drying of 5 year periodicity are presented. Advantages of economic efficacy of the annual frequency of pond drying are confirmed: twice increased commercial fish production; reduced expenses for purchase of food (own barley and wheat production), drugs, disinfectants, fertilizers that allow increasing economic revenue and making profit.

Innovative technologies of pasture lake fish farming in the Trans-Urals

Fisheries ◽  
2021 ◽  
Vol 2021 (1) ◽  
pp. 61-69
Author(s):  
Igor Mukhachev
Keyword(s):  
Salt Water ◽  
Silver Carp ◽  
Open Water ◽  
Fish Farming ◽  
Forest Steppe ◽  
Industrial Complex ◽  
Fish Farms ◽  
Commercial Fish ◽  
One Year ◽  
Lake Fish

The article describes the development of pasture lake fish farming within the forest-steppe Trans-Urals on the basis of improving the technologies of the fish-breeding process of one - year and two-year cultivation of commercial fish. Thanks to the introduction of integrated reclamation of lakes of the overseas type of the Trans-Urals and innovative fish farming technologies that use the reclamation effect of aeration of reservoirs in winter, loosening of bottom silt deposits during open water, the natural production potential of the lakes allowed to increase the fish productivity from 30-50 kg / year to 130-200 kg/ha per year. Based on the long-term monitoring of the ecological and fisheries situation of the lakes, it is recommended to intensify the process of modernization of existing fish farms and start creating new ones, which will significantly increase the importance of the Trans-Urals fisheries as part of the agro-industrial complex of Russia. It is recommended to include herbivorous fish – white Amur and white silver carp, and consumers of detritus and bottom silt-pilengas, which can effectively grow in salt water reservoirs, which are many within the southern Trans-Urals.

Parasitological monitoring of fish farm factories

2016 ◽  
Vol 3 (1) ◽  
pp. 54-57 ◽  
Author(s):  
Наумова ◽  
A. Naumova ◽  
Наумова ◽  
A. Naumova
Keyword(s):  
Fish Farming ◽  
Ammonia Concentration ◽  
Parasite Fauna ◽  
Fish Farm ◽  
Anthropogenic Factors ◽  
Fish Farms ◽  
Processing Technologies ◽  
Fish Breeding ◽  
Causative Agents ◽  
Abiotic And Biotic Factors

Objective of research: to perform the parasitological monitoring we have to study the parasite fauna in fishes from different fish farm factories, calculate the index of similarity, estimate the influence of abiotic and biotic factors on the ecosystem of fish-breeding reservoirs. Materials and methods: parasitological monitoring of factory fish farms was conducted by the method of complete and incomplete parasitological examination taking into account the data obtained from various fish-breeding reservoirs. Results and discussion: the parasite fauna of cyprinid fishes is represented by 56 species, carriage of causative agents of parasitic diseases in fishes is detected. Index of similarity of parasite fauna in carps has been studied and typification of agricultural reservoirs carried out. Index of similarity between the parasite fauna in carp and herbivorous fish was 22–33 %, carp and rough fish - 18–30,7 %. Influence of abiotic (oxidability, reduction of oxygen and nitrogen ammonia concentration, mineralization) and biotic – anthropogenic factors (violation of processing technologies, veterinary and sanitary rules of fish transport and fish farming operations) on fish infestation with parasites was studied. The role of parasitological monitoring in prevention and elimination of fish diseases was shown.

scholarly journals FISHING IN DRAINING PONDS OF MODERN FISH FARMS

2020 ◽  
Vol 2020 (4) ◽  
pp. 131-137
Author(s):  
Dmitriy Alekseevich Kostrykin ◽  
Yulia Nikolaevna Grozesku
Keyword(s):  
Mechanical Damage ◽  
Fish Farming ◽  
Fish Ponds ◽  
Fish Farms ◽  
Farmed Fish ◽  
Severe Injuries ◽  
Commercial Fish ◽  
Technological Stage ◽  
Time Frames ◽  
Excessive Accumulation

The article describeы the fishing process as a final technological stage that completes the cycle of fish breeding in the fish ponds. Fishing in the ponds, regardless of their category, is a difficult and energy-intensive process. The safety of farmed fish and the overall results of fish farming depend on the process of fishing. The well-known fishing methods are based on filtering fish when discharging water through fish catchers or other artificial structures. When water is drained from the pond, the fish moves to a fish catcher with the water flow, which contradicts its biological tendency to breast the current and prevents from its getting into the fish catcher or another artificial structure. In addition, the separation of fish from water by a grated water separator leads to the mechanical damage of the fish scales and reduces the number of alive fish. The technology of fish catching in draining ponds used at the small innovative enterprise SRK Sharapovsky (Kamyzyaksky district, Astrakhan region) has been analyzed. The absence of a fish catcher is a specific feature of the technology. Fishing in the ponds is carried out by using a dragnet during the pond drainage, starting the catch when the pond’s area is lowered to 1/3 or 1/4. The disadvantages of this technology include excessive accumulation of fish in a small volume of water, which can cause fish death or severe injuries to the underyearlings reared with commercial fish species. Choosing the optimal fishing gear or a device will allow to clearly plan and coordinate the work of the enterprise, because the fishing period is short and depends on the time frames and the market demands.

scholarly journals A Study on Fish Production of Different Size of Fish Farm Groups in Prayagraj District, Uttar Pradesh

2021 ◽  
pp. 1-6
Author(s):  
Ayushi Verma ◽  
. Ramchandra
Keyword(s):  
Uttar Pradesh ◽  
Fish Farm ◽  
Size Group ◽  
Fish Production ◽  
Fish Ponds ◽  
Explanatory Variables ◽  
Independent Variables ◽  
Fisheries Resources ◽  
Human Labor ◽  
Coefficient Of Elasticity

Background: Uttar Pradesh is India’s most populous state having 1662 lakh population as per 2001 census, against 16.2% of India’s population with enough fisheries resources in the form of community ponds, tanks with dominance of rivers and man-made reservoirs. Five blocks (Koraon, Shankargarh, Karchhana, Handia, and Jasara) from Prayagraj were taken for study during the period of 1st December,2020 - 31st May,2021. Aim: To examine the fish production of different size of fish farm groups. Methodology: A study was conducted in the Prayagraj district of Uttar Pradesh. A total of 80 fish farmers were selected randomly from five blocks (Koraon, Shankargarh, Karchhana, Handia, and Jasara) and a pre-structured questionnaire was used to collect the data from the fish farmers. The fish farmers were classified into three categories on the basis of the size of pond area viz. small farmer: up to 0.125 ha., medium farmer: 0.125 ha to 0.250 ha., and large farmer: above 0.250 ha. Result: The Study showed that, various independent variables of production like fingerlings, manures, feeds, and labor were being analysed in accordance with their respective sample of fish ponds and it is concluded that all of the independent variables affected the fish production differently. Using Cobb Douglas production function, 73% variation in gross value return from explanatory variables was observed in first size-group. Effect of Improved variety fingerlings was negative and coefficient of elasticity for human labor was positive but both impacted fish production significantly. A variation of 41.6% in gross value return was observed from second size group. Human labor impacted fish production significantly and its coefficient of elasticity was positive. Further, 45.7% of variation in gross value return was in third size group.  Human labor and manure both had a significant effect, and their coefficients of elasticity was positive and negative respectively. Coefficient of multiple determination  was 76.6% indicating variation in gross value return from independent variable from all farm’s situations. Pond area and human labor variables had positive coefficient of elasticity but for improved fingerlings it was negative and all effected fish production significantly. Conclusion: It was concluded that there is a need to further engage the fish farmers in the fish production practices and provide them with sufficient inputs of production like fingerlings, manures, feeds, and labor so that the farmers can boost the fish production in the study area.

COST EFFECTIVENESS OF BREEDING UNDERYEARLINGS OF COMMON CARP AND HERBIVOROUS FISHES IN THE FISH-BREEDING FARM OF ALMATY REGION OF KAZAKHSTAN

2017 ◽  
pp. 80-88
Author(s):  
Evgeniy Victorovich Fedorov
Keyword(s):  
Silver Carp ◽  
Ctenopharyngodon Idella ◽  
Herbivorous Fish ◽  
Average Weight ◽  
The South ◽  
Fish Farms ◽  
Commercial Fish ◽  
Herbivorous Fishes ◽  
Control Version ◽  
And Control

The article highlights the problem of commercial breeding of carp yearlings ( Cyprinus carpio ) in the fish farms in the south part of Kazakhstan with the purpose of the industrial cycle reduction. There is given a brief description of the experience in growing carp yearlings as a commercial fish product (pilot variant) and fish seeds (control variant) in polyculture with herbivorous fishes (grass carp ( Ctenopharyngodon idella ) and silver carp ( Hypophthalmichthys molitrix )) using various technological schemes, in the fish farms in the Almaty region. There are presented initial data on the stocking of experimental and control ponds by young adults; data on the final harvest of experimental ponds, including the average weight of commercial yearlings of carp and seeds of silver carp in the experimental version, and carp seeds and herbivorous fish in the control version; the fish productivity of ponds according to each polycultural specimen and the costs of artificial feed. Calculations are given on economic efficiency of growing yearlings in pilot and control variants, the profitability of growing commercial carp in the pilot version and the cost of fish seeds for carp and herbivorous fish in the control version. The most economically efficient technological schemes for growing yearlings of carp and herbivorous fish species in fish farms with channel ponds in the south of Kazakhstan have been proposed. The article shows that breeding carp yearlings is well-founded It presents the ways of planning of breeding the fish-seeds of carp and herbivorous fishes in fish-hatcheries and pond farms of Kazakhstan in modern economic conditions.

scholarly journals Pond fish culture and needs for credit: A study in selected areas of Tangail district

2016 ◽  
Vol 13 (1) ◽  
pp. 117-124
Author(s):  
MA Rahman ◽  
F Ahmed ◽  
MS Islam ◽  
MA Khan
Keyword(s):  
Fish Farming ◽  
Fish Farm ◽  
Small Scale ◽  
Fish Production ◽  
Gross Margin ◽  
Feed Cost ◽  
Human Labour ◽  
High Feed ◽  
Utilization Patterns ◽  
One Year

This study examines the cost, returns, profitability of pond fish farm, requirements, adequacy, sources and utilization patterns of credit and problems associated with pond fish farming in Madhupur Upazila of Tangail district. A total of 60 farmers with small traditional types of ponds were randomly selected for this study. Both description and econometric analysis were used. Human labour was the most important and one of the largest inputs used for pond fish production. The average per acre human labour cost, fingerlings cost, feed cost, chemical fertilizers cost, manure cost, and lime cost were Tk. 9345, Tk. 18506, Tk.10476, Tk.3759, Tk. 329, and Tk.1605, respectively. Pond rental value was calculated at Tk. 11537 per acre for one year which shared 26.42 percent of total costs of pond fish production. Gross return was Tk. 70928 per acre. Gross margin and net return of the pond fish farm were Tk.38118 and Tk. 24081 per acre respectively. The BCR was 1.514. Out of 60 farmers, only 11 farmers received loans from different sources and 86.67 percent of applied amount received. About 83 percent of the loan used for operating expenditure of farming and rest 17 percent loan used for non-farm expenditure. There were some problems in fish farming, such as insufficient water, high feed cost etc. Government needs to provide subsidized feed, technical supports and credit facilities for the small scale fish farmers.J. Bangladesh Agril. Univ. 13(1): 117-124, June 2015

scholarly journals Aqua Drugs and Chemicals Used in Aquaculture in Jamalpur Sadar Upazila of Bangladesh

2018 ◽  
pp. 1-13
Author(s):  
Md. Ausraful Anwar ◽  
M. Mamnur Rashid ◽  
Md. Abu Hena Mostofa Kamal ◽  
Md. Mejanur Rahman ◽  
Debasish Pandit
Keyword(s):  
Animal Health ◽  
Silver Carp ◽  
Water Quality Management ◽  
Small Scale ◽  
Growth Promoter ◽  
Fish Farms ◽  
Anabas Testudineus ◽  
Dissolve Oxygen Level ◽  
Commercial Fish ◽  
Fish Diseases

The present study was conducted to know the present status of use of commercial aqua drugs and chemicals and their impact on fish health management in Jamalpur sadar upazila (sub-district). A questionnaire survey was conducted for a period of seven months from December 2013 to June 2014 from nineteen small scale fish farms, seven commercial fish farms, eight fish hatcheries and seven chemical retailers. Five categories of aqua drugs and chemicals were identified and noted in the study area. Those drugs and chemicals were produced by the following seven pharmaceutical companies: Square Pharmaceuticals Ltd., Novarties Animal Health, ACI Animal Health, Fish Tech BD Ltd., Acme Laboratories, Reneta, and Eon Animal Health. Different types of diseases such as edwardsiellosis, EUS (epizotic ulcerative syndrome), red spot and different parasitic diseases were found to occur in pangus (Pangasius hypophthalmus), tilapia (Oreochromis nilotica), sharputi (Puntius sarana), rui (Labeo rohita), mrigal (Cirrhinus mrigala), Thai koi (Anabas testudineus), shing (Heteropneustes fossilis) and silver carp (Hypophthalmicthys molitrix). Geotox, JV Zeolite, Aquakleen and Biomin Aquaboost were used for water quality management; Oxyflow, Bio Care and Oxylife to improve dissolve oxygen level; Megavit Aqua, Aqua Boost, Aquamin, Acimix Super-fish, Square Aquamix and Vitax-C as growth promoter; Oxysentin 20%, Captor, Aquamycine and Renamycin soluble powder as antibiotics; Hepaprotect-Aqua, Timsen, Virex, Polgard Plus as disinfectant; lime, salt, formalin, potash and malachite green were used against fish diseases. Susceptible months of disease outbreak in the study area were November to February. The recovery of fish diseases was found from 50% to 95% in Jamalpur region. Farmers’ poor understandings about the application of aqua drugs and proper withdrawal period were found in the study area which might have adverse effect on fish and human health. Proper training of fish farming community about the appropriate dose and administration methods should be suggested for safe and sustainable aquaculture practices.

scholarly journals Present status of fish farming and pond conditions from Basti and Gonda districts, Uttar Pradesh

2020 ◽  
Vol 26 (1) ◽  
Author(s):  
Sunil Kumar Upadhyay ◽  
J. Mishra
Keyword(s):  
Silver Carp ◽  
Uttar Pradesh ◽  
Fish Farming ◽  
Fish Ponds ◽  
Fish Farms ◽  
Indian Major Carps ◽  
Spread Area ◽  
Species Combination ◽  
Water Spread ◽  
Major Carps

Fish ponds operate as an open ecological system where natural and technological processes are built on one another and are implemented in a non-separable way. Pond fish farms contribute to preserve biodiversity. In both districts the composite fish culture technology is commonly followed for fish farming with six species combination i.e. Indian Major Carps (IMC) i.e. Catla, Rohu and Mrigal (Nain) and Exotic Major Carps (EMC) i.e. Silver carp, Grass carp and Common carp. There are 14 blocks in Basti district in which 3848 number of ponds are found. These ponds cover 1040.42 ha of water spread area. There are 16 blocks in Gonda district. The number of ponds is 4471 with water spread area of 3706.86 ha. The total productions of fishes are 1800 ton/year in Basti district while 3850 ton/year in Gonda district. The average productions are 2800 kg/ha/ year and 3000 kg/ha/year in Basti and Gonda districts, respectively. The data indicated that the Gonda district have more potential in fish production compared to Basti district. The maximum ponds were of less than 1 hectare in both districts. The respondents were 68% in Basti district and 76% in Gonda District. 82% and 70% respondents have leased pond in Basti and Gonda districts, respectively. Gonda district has more potential for fishing in future.

scholarly journals PRACTISE OF ORGANIZING LAKE COMMERCIAL FISH FARMS IN CONDITIONS OF LAKE OZGENT

2021 ◽  
Vol 2021 (2) ◽  
pp. 90-96
Author(s):  
Nailya Baimuratovna Bulavina ◽  
Tynysbek Temirkhanovich Barakbaev ◽  
Galymzhan Zholdasbekovich Iskhakhov ◽  
Alyona Aleksandrovna Mukhramova
Keyword(s):  
Food Supply ◽  
Grass Carp ◽  
Ionic Composition ◽  
Silver Carp ◽  
Natural Food ◽  
Fish Farms ◽  
Commercial Fish ◽  
Hydrochemical Regime ◽  
Current State ◽  
Fish Productivity

The article presents the results of the researches conducted on Lake Ozgent (the Kyzylorda region). The data on hydrochemical regime of the lake, ionic composition, composition of biogenous compounds, oxygen and thermal regimes were collected and analysed. There has been done the assessment of food supply and current state of the ichthyofauna. According to the obtained data, the recommendations about using Lake Ozgent were made, the recommended meliorative events (meliorative fishing, repair of hydroconstructions) were held and stocking the fishing material of carp was carried out. Based on the work results it has been established that in the conditions of Lake Ozgent the pure gain in 5 months of cultivation (on extensive technology when using only the natural food supply) made 385.6 g in a carp, 301.4 g in a white silver carp and 428.7 g in a grass carp. In the full catch of commodity fish species, the overall fish productivity of Lake Ozgent will make 101.9 kg/hectare, of them carp will take 43.4 kg/hectare, grass carp - 13.5 kg/hectare and white silver carp - 45 kg/hectare. The growth of the grown-up fish in Lake Ozgent corresponds to biotechnical standards of fish cultivation in the in polyculture of the feeding lakes.

scholarly journals Development of a Hydropower Turbine Using Seawater from a Fish Farm

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 266
Author(s):  
Md Rakibuzzaman ◽  
Sang-Ho Suh ◽  
Hyoung-Ho Kim ◽  
Youngtae Ryu ◽  
Kyung Yup Kim
Keyword(s):  
Power Plants ◽  
Guide Vane ◽  
Cross Flow ◽  
Synchronous Generator ◽  
Fish Farm ◽  
Hydropower Plant ◽  
Fish Farms ◽  
Data Simulation ◽  
Small Hydropower ◽  
Hydropower Plants

Discharge water from fish farms is a clean, renewable, and abundant energy source that has been used to obtain renewable energy via small hydropower plants. Small hydropower plants may be installed at offshore fish farms where suitable water is obtained throughout the year. It is necessary to meet the challenges of developing small hydropower systems, including sustainability and turbine efficiency. The main objective of this study was to investigate the possibility of constructing a small hydropower plant and develop 100 kW class propeller-type turbines in a fish farm with a permanent magnet synchronous generator (PMSG). The turbine was optimized using a computer simulation, and an experiment was conducted to obtain performance data. Simulation results were then validated with experimental results. Results revealed that streamlining the designed shape of the guide vane reduced the flow separation and improved the efficiency of the turbine. Optimizing the shape of the runner vane decreased the flow rate, reducing the water power and increasing the efficiency by about 5.57%. Also, results revealed that tubular or cross-flow turbines could be suitable for use in fish farm power plants, and the generator used should be waterproofed to avoid exposure to seawater.

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