scholarly journals ELEMENTS OF CIRCULAR TECHNOLOGIES IN AQUACULTURE

2021 ◽  
Vol 2021 (2) ◽  
pp. 76-89
Author(s):  
Marina Lvovna Kalaida ◽  
Madina Farhadovna Khamitova ◽  
Andrey Andreevich Kalaida ◽  
Svetlana Dmitrievna Borisova ◽  
Valeria Vladimirovna Babikova
Keyword(s):  
Agricultural Sector ◽  
Clarias Gariepinus ◽  
Fish Farming ◽  
Natural Ecosystem ◽  
Vegetable Crops ◽  
Waste Products ◽  
Use Of Resources ◽  
Closed Water ◽  
Production Technologies ◽  
High Fish

The elements of circular technologies in aquaculture on various types of energy are considered. The development of forms of aquaculture from pasture to industrial with an increase in the share of circular technologies is shown. It is noted that the use of cage fish farming on the waste warm waters of energy facilities is complicated by eutrophication at high fish planting densities and the peculiarities of temperature and hydrochemical regimes. The need to select new aquaculture objects with a fast growth rate, thermophilic and not demanding to the oxygen content in the water is noted: the African clarias catfish (Clarias gariepinus) is a promising object for growing in warm waters. The possibilities of including other representatives of catfish - shilbovye catfish (Pangasius) - are considered. It is shown that due to the expansion of biotechnologies for growing valuable objects in installations with a closed water supply cycle, thermophilic hydrobionts, for example, the Australian red-clawed crayfish Cherax quadricarinatus, can be used as elite delicatessen products. It is shown that the complex hydrobiocenosis of fouling is formed by a set of consults of different orders. A fish-breeding system with elements of circular technologies becomes similar in structure to a natural ecosystem. The results of experimental cultivation of spicy vegetable crops on the waste products of carp and clary catfish are presented. Aquaculture and aquaponics as specific components of the modern agricultural sector in development are focused on industrial production technologies with the use of circular technologies for the efficient use of resources.

scholarly journals Elements of circular technologies in aquaculture on the waters of energy facilities

2021 ◽  
Vol 288 ◽  
pp. 01048
Author(s):  
Marina Kalaida ◽  
Madina Khamitova ◽  
Andrey Kalaida ◽  
Svetlana Borisova ◽  
Valeria Babikova
Keyword(s):  
Agricultural Sector ◽  
Clarias Gariepinus ◽  
Fish Farming ◽  
Vegetable Crops ◽  
Waste Products ◽  
Use Of Resources ◽  
Production Technologies ◽  
High Fish ◽  
Fast Growth Rate ◽  
Selection Of

The elements of circular technologies in aquaculture on various energy waters are considered. The development of forms of aquaculture from pasture to industrial with an increase in the share of circular technologies is shown. It is noted that the use of cage fish farming on warm waste waters of energy facilities is complicated by eutrophication at high fish stocking densities and the peculiarities of temperature and hydrochemical regimes. The necessity of selection of new aquaculture objects with a fast growth rate, thermophilic and not demanding to the oxygen content in water is noted: a promising object of cultivation in warm waters is the African clary catfish (Clarias gariepinus). Possibilities of including other representatives of catfish - shill catfish (Pangasius) are considered. The results of experimental cultivation of spicy vegetable crops on waste products of crucian carp and clary catfish are presented. The analysis of own data and data of foreign sources is carried out. The dependence of the growth of valuable plant species on the type of fish in aquaponics is shown. Aquaculture and aquaponics as specific components of the modern agricultural sector in the development are focused on industrial production technologies using circular technologies for the efficient use of resources.

Growing commodity tilapia in various experimental conditions

2020 ◽  
pp. 26-36
Author(s):  
F. A. Altayeva
Keyword(s):  
Fish Farming ◽  
Biological Indicators ◽  
Fish Farms ◽  
Experimental Conditions ◽  
Fish Breeding ◽  
Closed Water ◽  
The Republic ◽  
Short Time ◽  
High Fish ◽  
Experimental Ponds

The article presents the results of growing tilapia to marketable weight in experimental sites (Chilikskoye pond pond farms LLP, KATU named after S. Seifullin JSC and Kapshagai spawning farm — 1973 LLP). In the process of carrying out research works, the methods generally accepted in fish farming, hydrochemistry, hydrobiology, hydrology, ichthyology, as well as foreign normative and technical guidelines and methodological instructions on the technology of growing commercial tilapia in industrial conditions were used. Monitoring of hydrochemical analyses of water in ponds, swimming pools, and closed water supply installations is given. Fish-breeding and biological indicators of tilapia grown in various experimental conditions are presented. The results of the studies have shown the real possibility of growing tilapia in various conditions of fish farms in Kazakhstan. Based on the results of the work, the following conclusions were made: — satisfactory fish-breeding indicators were obtained with various cultivation technologies (as when growing tilapia in polyculture and monoculture in ponds, in pools, as well as cultivation in the recirculation system); — the cultivation of tilapia in the experimental ponds of the fish farm of the Almaty region of the Republic of Kazakhstan has shown the possibility of obtaining high fish-breeding biological indicators of tilapia and the ability to grow to marketable mass in a short time; — as a result of experimental cultivation in various conditions, it was found that the survival rate was not lower than 97%; — as a result of the analysis of the profitability indices of the developed technologies, it was found that the most profitable was the technology of growing marketable tilapia products in monoculture ponds on water with a natural thermal regime in Chilik Pond Economy LLP.

scholarly journals Effectiveness of the Use of the Adaptogen Trekrezan in the Cultivation of African Catfish

2021 ◽  
Vol 37 ◽  
pp. 00176
Author(s):  
Elena Spirina ◽  
Elena Romanova ◽  
Ludmila Shadyeva ◽  
Vasily Romanov
Keyword(s):  
Physiological State ◽  
Clarias Gariepinus ◽  
The Body ◽  
Planting Density ◽  
Adaptive Plasticity ◽  
Histological Structure ◽  
African Catfish ◽  
Waste Products ◽  
Closed Water ◽  
Cellular And Humoral Immunity

Growing fish in closed water supply installations with a high planting density leads to accumulation of waste products, turning the habitat into toxic. Growing fish in such an environment leads to stress and increases the stress on their liver, which provides the body with detoxification of metabolites. To reduce stress, adaptogens are used, which increase endurance and survival, increase adaptive plasticity, and strengthen the immunity of fish. We used an adaptogen called Trekrezan. The work aim was to study the morphofunctional changes in liver and its microarchitectonics in African catfish grown using Trekrezan. The analysis of morphofunctional changes in liver allows us to judge the general physiological state of fish body. The liver index of African catfish grown without the use of Trekrezan is significantly higher in both males and females, compared to African catfish grown with Trekrezan, which indicates an intensification of metabolism. Analysis of histological structure of African catfish liver (Clarias gariepinus), grown without the use of the Ttrekrezan, revealed abnormalities of the parenchymal layer of liver with signs of fatty dystrophy, signs of necrotic changes in liver cells, hemorrhages in vascular region, a violation of polarity in the structure of hepatocytes. In species raised in an environment with Trekrezan, these abnormalities are absent, since Trekrezan, due to the activation of cellular and humoral immunity, leads to decrease in intoxication, provides strengthening of immunity, and increases the body's resistance to unfavorable factors of medium.

scholarly journals Trends of development of agricultural enterprises specializing in plant production in Ukraine

2020 ◽  
pp. 24-27
Author(s):  
Maryna POLENKOVA
Keyword(s):  
Crop Production ◽  
Agricultural Sector ◽  
Regional Distribution ◽  
Plant Production ◽  
Vegetable Crops ◽  
Sugar Beets ◽  
Agricultural Enterprises ◽  
Agricultural Potential ◽  
Berry Crops ◽  
Taxonomic Groups

The paper defines the structural distribution of sown area of crops. The dynamics of production of cereals and legumes, sugar beets, sunflowers, potatoes, vegetables, fruits and berries. The clustering of regions of Ukraine under similar conditions of development of the enterprises of the agricultural sector specializing in crop production is carried out. According to the results of the analysis, 3 clusters were identified, which gave rise to the possibility of forming (developing) joint effective organizational and economic mechanisms to enhance the development of crop enterprises, favorable for implementation within the cluster. In the course of this study, we focus on the development trends of enterprises specializing in crop products. The lion's share (54.7 %) of sown areas falls on cereals and legumes. Technical crops occupy, which is 32.6 %, and potatoes, vegetables and melons – 6.5 %. It is important to note the long-term positive dynamics of production of cereals and legumes and the growth of production can be traced to all categories of farms – in farms and households. The production of sunflower and vegetable crops was also marked by positive dynamics. The decrease was observed in the production of sugar beets, potatoes, fruit and berry crops. In the context of the study, it is important to identify similar conditions (environment, resources, etc.) for the development of agricultural enterprises between the regions of Ukraine. For this purpose, multifactor statistical analysis (cluster analysis) of key factors of their development was used on the basis of a matrix of 25 selected indicators of development of enterprises specializing in crop production in all regions (600 indicators). To enhance the objectivity of the results, the analysis was conducted in 2010, 2015 and 2019. According to the results of the analysis, taxonomic groups (clusters) were singled out, which made it possible to single out similar regional conditions within each group. Since 2010, there have been significant changes in the regional distribution of Ukraine's agricultural potential. However, during 2015–2019 there is a relative stability in terms of resource provision and use within specific clusters. According to the results of the analysis, three clusters are distinguished: I. Volyn, Zakarpattia, Ivano-Frankivsk, Lviv, Rivne, Chernivtsi, as well as Donetsk and Luhansk regions. II. Dnipropetrovsk, Zhytomyr, Zaporizhia, Kyiv, Mykolaiv, Odesa, Ternopil, Kharkiv, Kherson, Khmelnytsky regions. III. Vinnytsia, Kirovohrad, Poltava, Sumy, Cherkasy and Chernihiv regions.

scholarly journals A Historical Overview of Protected Agriculture in the State of Sinaloa, Mexico: Implications for Improving Rural Prosperity

2019 ◽  
Vol 26 (3) ◽  
pp. 7-26
Author(s):  
Luis Flores ◽  
M. Craig Edwards
Keyword(s):  
Economic Development ◽  
Technological Innovation ◽  
Agricultural Production ◽  
Agricultural Sector ◽  
The State ◽  
Tomato Production ◽  
Use Of Resources ◽  
Technological Advances ◽  
Production Practices ◽  
Societal Problems

Economic development is an important phenomenon that can positively impact societal problems such as poverty, lack of education, and insufficient infrastructure, among other ills. In this regard, technological advances are essential to making better use of resources. The agricultural sector is no exception. With the passage of time, advances in agriculture have allowed processes to be optimized, improving production practices and minimizing risks, by using innovative technologies (Schenkel, Finley, & Chumney, 2012). For this reason, the adoption and use of approaches to protected agricultural production grew steadily in the State of Sinaloa, Mexico during the last century and until today. Such technology assisted significantly in the economic development of the region. This inquiry sought to understand factors and forces that augmented expansion of protected agriculture, especially regarding tomato production, and its advantages compared to traditional systems, as experienced by producers in Sinaloa. Understanding such a phenomenon may provide important implications for improving the economies of similar contexts in need of economic development where agriculture is a viable sector. Keywords: economic development; protected agriculture; Sinaloa tomato industry; technological innovation

scholarly journals Applying Logistic Regression Data mining techniques for Ethiopian Government Agricultural Open Data Sets

2021 ◽  
Vol 10 (2) ◽  
pp. 473-488
Keyword(s):  
Data Mining ◽  
Logistic Regression ◽  
Agricultural Sector ◽  
Model Building ◽  
Open Data ◽  
Research Process ◽  
Attribute Selection ◽  
Sufficient Evidence ◽  
Vegetable Crops ◽  
Logistic Regression Algorithm

Ethiopia has a great agricultural potential because of its vast areas of fertile land, diverse climate, generally adequate rainfall, and large labor force. With its verified importance to the Ethiopian economy, there is sufficient evidence to show that the potential of the agricultural sector can be expanded considerably by attracting investors towards the sector. This study aims at applying classification techniques in developing a predictive model that can estimate yield production of vegetable crops and the correlation of crops based on their class. In the process of building a model, different steps were undertaken. Among the steps, data collection, data preprocessing and model building and validation were the major ones. Different tasks performed in each step are mentioned as follows. The data were collected Food and Agriculture Organization of the United Nations (FAO). Under preprocessing, data cleaning, discretization and attribute selection were done. The final step was model building and validation and it was performed using the selected tools and techniques. The data mining tool used in this research was Weka. In this software the logistic regression algorithm was selected since it is capable to score more accuracy. After successive experiments were done using this software, a model that can classify crop yield as high, medium and low with better accuracy to the extent of 88.6%. Experimental results show that logistic regression is a very helpful tool to depict the contribution of yield estimation and crop correlation. The reported findings are optimistic, making the proposed model a useful tool in the decision making process. Eventually, the whole research process can be a good input for further indepth research

scholarly journals Enzymes as Biomarkers of Environmental Stress in African Catfish (Clarias gariepinus) in Osun State, Nigeria

2017 ◽  
Vol 7 (14) ◽  
pp. 71-83
Author(s):  
Omolara Titilayo Aladesanmi ◽  
Femi Kayode Agboola ◽  
Rapheal Emuebe Okonji
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Anthropogenic Activities ◽  
Clarias Gariepinus ◽  
Fish Farming ◽  
Fish Tissue ◽  
Enzymatic Activities ◽  
African Catfish ◽  
Fish Ponds ◽  
Bioindicator Species

Background. Many natural aquatic bodies have been contaminated with heavy metals released from domestic, industrial and other anthropogenic activities. Fish are an important bioindicator species and play an important role in the monitoring of water pollution. Objectives. This study shows the effect of heavy metals on the distribution of glutathione S-transferases (GST), catalase, rhodanese and 3-mercaptopyruvate sulphur transferase (3-MST) isolated from the liver, gills, fins and muscle of Clarias gariepinus. Methods . Glutathione S-transferase, catalase, rhodanese and 3-mercaptopyruvate S-transferase enzymes were isolated from the liver and gills of fish by homogenization of each tissue (with specific buffers for each enzyme) and centrifugation. Serial dilutions of the crude enzymes were then assayed for residual enzymatic activities using standard enzyme assay protocol. Results. The results showed heavy metals in the liver and muscle of the investigated fish. This study indicated significant accumulation of heavy metals in the tissues/organ of the fish from Ilesha, Osogbo and Yakoyo fish ponds. These are three main towns in Osun State where the major occupation is fish farming. The relationship between enzymatic activities and heavy metal content in C gariepinus tissue showed positive and significant (p<0.05) correlations between lead (Pb) and GST as well as chromium (Cr) and GST. This implies that higher concentrations of Pb and Cr induced the expression of greater GST activity in the fish tissue. Conclusions. The study concluded that the pattern of response of GST, catalase, rhodanese and 3-MST activities in the various organs/tissues of C gariepinus to the heavy metals suggests that the excitation or inhibitions of their activities are organ specific. Further biochemical studies of fish tissues/organs are needed to characterize the enzymatic changes associated with heavy metal pollution. Competing Interests: The authors declare no competing financial interests

Environmental impact of crop diversification in steep vineyards

2020 ◽  
Author(s):  
Thomas Iserloh ◽  
Felix Dittrich ◽  
Cord-Heinrich Treseler ◽  
Katharina Frey-Treseler ◽  
Roman Hüppi ◽  
...  
Keyword(s):  
Adverse Effects ◽  
Cover Crops ◽  
Value Chain ◽  
Agricultural Sector ◽  
Vegetation Management ◽  
Steep Slope ◽  
Crop Diversification ◽  
Horizon 2020 ◽  
Agricultural Efficiency ◽  
Use Of Resources

<p>The intensification of European agriculture leads to soil degradation, reduction of biodiversity and an increased economic risk for the farmers. An approach towards solving this problem is crop diversification and the optimized use of resources. Increasing agricultural efficiency/resilience through diversification and the associated falling environmental costs could contribute to the growth of the European agricultural sector by adapting the entire value chain.</p><p>The EU-funded project DIVERFARMING (Horizon 2020 no 728003) aims to develop and deploy innovative farming and agribusiness models based on crop diversification. Germany is involved with a broad-based study in organic steep slope viticulture in Wawern (Saar Valley).</p><p>A fundamental issue of steep slope viticulture is related to vegetation management below the vines. In order to overcome problems of soil erosion and soil organic matter depletion, an increasing number of winemakers is establishing cover crops such as grasses and legumes in driving lanes. On the contrary, the area underneath the vines is typically kept free of vegetation to avoid fungal diseases and competition on water. As cover crops do not benefit to the value chain and may compete with vines on water or have other adverse effects on vine performance, an alternative strategy for vegetation management underneath vines in steep slope viticulture is required.</p><p>Therefore, intercropping vines with perennial herbs like Thyme and Oregano growing underneath is a promising cropping practice to address the abovementioned issues. Both herbs are economically valuable and originate from dry and warm environments, which are typical for most viticultural areas. Furthermore, their relatively low need for water and flat-growing habitus is assumed to be suitable to cover the soil underneath the vines in order to protect against erosion and suppress weeds without having adverse effects on vine growth and -health. They can be marketed directly or indirectly as a concentrate for cosmetics, perfumes, nutritional supplements and food.</p><p>During the 5-year project, we will investigate impacts on and interactions between crops, soil ecological and physicochemical properties as well as erosion and emission of greenhouse gases to evaluate ecological benefits of crop diversification. Selected results obtained within the first two years of investigation will be presented.</p>

scholarly journals Can Smart Farming in India Eradicate the Problem of Agricultural and Crisis of Food Poverty from the Nation

2021 ◽  
Vol 9 (11) ◽  
pp. 1045-1049
Author(s):  
Dr. Sumanta Bhattacharya
Keyword(s):  
Artificial Intelligence ◽  
Remote Sensing ◽  
Technology Use ◽  
Agricultural Sector ◽  
Soil Nutrient ◽  
Vertical Farming ◽  
Use Of Resources ◽  
Smart Farming ◽  
The Government ◽  
Greenhouse Emission

Abstract: Smart farming has started taking a dynamic shape in the society , where the farmers are adopting smart farming with increase in the use of technologies like artificial intelligence , remote sensing for cultivation of crops with proper knowledge and information gained through digital market , satellite , farm mapping and climate condition to understand and make correct use of resources , controlling soil ,nutrient , saving water and use of less fertilizers in growing crops . Greenhouse , vertical farming , horticulture have entered the urban sector at a rapid pace to meet the demand of the growing society , smart agriculture has helped us to limit our dependence on water , soil and other chemical fertilizer . Today we produce more fresh , healthy and organic food . We have been successful in countering the climate influence over the food sector and reducing the greenhouse emission caused by agricultural sector or make it to zero emission , with promotion of vertical and indoor farming in the urban , semi urban and rural region, the government have encourage farmers to adopt smart farming what we require is to provide training and knowledge on technology use along with many resources available at a reasonable price for the farmers . Keywords: Smart Farming, farmers, vertical farming, artificial intelligence, remote sensing, technologies, climate, resources

scholarly journals Antioxidant properties of aqueous media. Part 3. Water research during the Clarias gariepinus farming in the closed containment aquaculture system

2019 ◽  
Vol 60 (10) ◽  
pp. 74-80
Author(s):  
Anatoly A. Lapin ◽  
◽  
Maria E. Gordeeva ◽  
Marina L. Kalaida ◽  
◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Clarias Gariepinus ◽  
Antioxidant Properties ◽  
Food Plants ◽  
Phosphorus Compounds ◽  
Total Antioxidant Activity ◽  
Waste Products ◽  
Aquaculture System ◽  
Vital Functions ◽  
Total Antioxidant

The article presents the results of a biochemical study of the total antioxidant activity of water during the Clarias gariepinus farming in closed containment aquaculture system, including the dynamics without replacement. For the first time is shown an increasing the total antioxidant activity with the highest values in the lower part of the biological filter. According to the results of daily observation, the fish behavior was adequate until the end of the experiment, which was stopped with the beginning of their mass death (more than 20%). Researches have shown the promise of using the indicator of total antioxidant activity to assess the work of the closed containment aquaculture system for hydrobionts farming. The issues of reducing the cost of farmed fish by the closed containment aquaculture system using aquaponics, which distinguished among other technologies by the high quality of environmentally friendly food products while significantly saving water resources which is an important problem for closed containment aquaculture system are considered. Food plants feed on bacteria from the waste products of fish while they consume the necessary secretion products from water – chemicals (nitrogenous, potassium, phosphorus compounds), naturally purifying the water. Aquaponics simulates the natural whirlpool, using the natural processes of fish vital functions for plants nutrient medium. As food plants can be used Salicornia europaea and glycophyte Nasturtium officinale, which has a high productivity and high content of vitamins, iron and glycosides. Both plants are tested in the closed containment aquaculture system including human, increased degree of isolation.

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