scholarly journals NUTRITIONAL VALUE OF STARTERFEED FOR VALUABLE TYPES OF FISH GROWN IN COMMERCIAL CONDITIONS

Author(s):  
Valentina Ivanovna Sidorova ◽  
Nadezhda Ivanovna Yеnvareva ◽  
Saule Zhangirovna Asylbekova ◽  
Nina Sergeevna Badryzlova ◽  
Saya Kashkinbayevna Koyshibaeva

The article describes aquaculture as a main factor saturating the domestic market with high-grade fish products in the world. In last decades, food production in this sector has increased by 12 times with an average annual increase of 8.8%. The Republic of Kazakhstan has rather high potential for developing different lines of commercial fish farming. Modern industrial fish farming is based on keeping fish in fully controlled water environments. In modern conditions, when fish are kept in cages and pools, natural feed is no longer of fundamental importance. Artificial feed is widely used; it should be balanced for the main nutrients and meet the needs of aquaculture facilities. There have been given data on nutrient requirements for the fish species that are new for aquaculture of Kazakhstan: larvae and juveniles of zander, tilapia and clarid catfish. There have been given the standards of adding components to the feed recipes, suggested the premix recipe for producing these feed and shown the quality parameters of starter feed for larvae and juvenile of zander, tilapia and clarid catfish developed in the Republic of Kazakhstan. The nutritional value of starter feeds for these fish species has been defined. Halyk Balyk LLP conducted the production tests in order to determine the effectiveness of using the feed and their uptake by the fry. Feed for trout Aller Agua produced in Denmark served as a reference. Research and business experiment showed that food coefficient of the feed prepared for clarid catfish (0.92) is slightly inferior to the imported feed, with fry survival rate at 71%, average daily increase at 54.3 mg. The designed recipes of starter feedstuff may solve the problem of import substitution for feed products in the country. The data on nutritional needs of the fish mentioned may be used to calculate the feed recipes for fish farms.

Author(s):  
F. A. Altayeva

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.


Author(s):  
A. M. Naumova ◽  
◽  
L. A. Rozumnaya ◽  
A. Yu. Naumova ◽  
L. S. Loginov ◽  
...  

The influence of ecological, epizootological and technological factors on fish health was studied. It is shown that disregard of environmental, technological and veterinary-sanitary requirements in the reproduction and cultivation of fish leads to the emergence of contagious and non-contagious diseases and causes significant damage to fish farming. The analysis of previously approved veterinary and sanitary rules, instructions, recommendations for breeding and commercial fish farms, as well as patent documentation and scientific publications in the field of ecological and veterinary research in fish farming is carried out. The possibility of using modern ecological and veterinary-sanitary achievements for the protection of fish health is shown. The complex system of preventive measures (organizational, environmental-technological and veterinary-sanitary), supplemented by modern ecological and veterinary achievements, in its implementation will allow to reduce losses of fish products and increase efficiency of production.


Author(s):  
Grigory Emelyanovich Servetnik

Methods of prevention of fish diseases are aimed at destroying parasites in the host body and in the fish habitat — in the reservoir (chemoprophylaxis, increasing fish resistance), at preventing parasites from entering the reservoir (limiting the import of fish, import of healthy fish, quarantine measures, etc.), as well as preventing their spread and entry into the host body. It is shown that polyculture is not only the most effective method of using the natural forage base of the reservoir and, as a result, increasing fish productivity, but also a means of preventing mass infectious and other fish diseases. To prevent mass infectious diseases of fish and death from them both in safe and unfavorable ponds of carp fish farms, it is advisable to grow other fish species together with carp that do not suffer from diseases peculiar to carp. As a result, so-called sparse species plantings of fish are created in the ponds, while the total biomass remains high. At the same time, the natural food supply of ponds is most fully used and a kind of biological buffer is created that prevents the emergence and spread of contagious diseases. Polyculture can play a particularly important role in pond farms that already have certain problems with rubella, filometroidosis, botryocephalosis, carp pox, etc. Long-term studies of breeding herds in pond farms have shown that most of them have single foci of diseases, which, if there are optimal conditions for the pathogen, are ready to immediately respond with an outbreak of the disease or are generally quarantined for a particular fish disease. When determining the objects of polyculture, it is necessary to reduce the proportion of fish species that have a significant number of common diseases.


2021 ◽  
Author(s):  
Nadeesha Dilani Hettige ◽  
Rohasliney Binti Hashim ◽  
Zulfa Hanan Ash’aari ◽  
Ahmad Abas Kutty ◽  
Nor Rohaizah Jamil

Abstract This study examined the influence of fish farming activities on water quality and benthic macroinvertebrates at the Rawang sub-basin of Selangor River. Multivariate statistical techniques were used to determine major influencing water quality parameters causing organic contamination and the dominant pollution-tolerant benthic macroinvertebrates. Sampling was conducted at Guntong River (SR1), Guntong River’s tributary (SR2, the control site), Kuang River (SR3 and SR6), Gong River (SR4), and Serendah River (SR5) using random sampling techniques based on accessibility and proximity to fish farms. Benthic macroinvertebrates and water samples were collected from April 2019 to March 2020. Based on the principal components analysis (PCA), electrical conductivity (EC), dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), ammoniacal-nitrogen, and total suspended solids (TSS) were major water quality parameters influenced by fish farming activities. The Canonical Correspondence Analysis (CCA) revealed that several taxa of benthic macroinvertebrates (Chironomidae, Naididae, Lumbriculidae, Tubificidae, unidentified Oligochaeta, Leeches (Helobdella sp.), Planorbidae, and some Odonata) were moderately or highly sensitive to TSS, BOD, COD, turbidity, ammoniacal-nitrogen, and EC. These taxa were dominant in the sampling sites, which were close to fish farms. Findings in this study showed that fish farming activities impacted the water quality and benthic macroinvertebrates in this sub-basin.


2021 ◽  
Vol 247 ◽  
pp. 01075
Author(s):  
Matvey S. Talan ◽  
Irina S. Dokuchaeva

The socio-economic, biotechnological and environmental aspects of the organization of production and construction of a plant for deep processing of insectoculture in the Republic of Tatarstan are considered. Strategic analysis reveals the development of insect oculture as a key factor in improving the efficiency of food processing enterprises, organizing recycling and improving the state of the environment. The main product of the enterprise is a protein substrate, it is a well-balanced additive in mixed feed for poultry and fish farming and can become a reliable basis for import substitution in feed production. The products of vital activity of insects is a unique bio – fertilizer containing the whole complex of biologically active substances needed in crop production. The innovative technology of obtaining products of deep processing of insects is favorable not only in terms of the development of socio-economic processes in the republic, but also will give a new impetus to the development of the chemical, cosmetic and pharmaceutical industries in the Republic of Tatarstan.


Author(s):  
Dmitriy Alekseevich Kostrykin ◽  
Yulia Nikolaevna Grozesku

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.


Author(s):  
Valentina Ivanovna Sidorova ◽  
Saule Zhangirovna Asylbekova ◽  
Nadezhda Ivanovna Yеnvareva ◽  
Saya Kashkinbayevna Koyshibaeva ◽  
Nina Sergeevna Badryzlova ◽  
...  

Industrial fish-breeding is a promising trend for freshwater aquaculture development. The production of clarid catfish in Kazakhstan has advantages over traditionally grown fish species (trout, sturgeon) due to their valuable edible qualities. Clarid catfish grows very quickly even at high seeding densities, is undemanding to the environment, resistant to diseases, and effectively assimilates food. When growing clarid catfish in water recycling systems it is possible to refuse using oxygen equipment, because the fish species can use atmospheric air for breathing. As a result, the construction of such plants can save up to 40% of capital investments. In the course of the research, the physiological nutritional requirements of clarid catfish juveniles were established. Based on the data obtained there have been developed two extruded starter compound feed recipes for clarid catfish juveniles containing protein/fat 53.5 : 11.4 and 61.85 : 5.82 and energy exchange energy value varying within 16.46 - 17.12 MJ/kg. There have been conducted the production tests on assessing the efficiency of the developed compound feed and their intake by larvae and clarid catfish fry in the fish farms of “Kapshagayskoye NVH-1973”, LLP and “HalykBalyk”, LLP. The feed Aller Agua (Denmark) served as a control feed for comparing the nutritional and consumer qualities of the developed feed for trout. The determined feeding ratio of the developed feed did not exceed 0.93 units, it was insignificantly inferior to the import feed. The fry survival rate made 76% when using both the control and developed feed. The compound feeds for clarid catfish juveniles were developed by extruding, which allowed to obtain increased digestibility, water resistance and extended storage life. Introducing these feeds into the fish breeding practice will help to increase the efficiency of clarid catfish fry growth and expand opportunities of aquaculture facilities.


2018 ◽  
Vol 3 (3) ◽  
pp. 1-5
Author(s):  
Ajay Patel

Now a day, fishes are used for biomedical researches along with use as a food also. Chemical contaminants of marine environments are of momentous concern. Similar to other flora and fauna, fish can also be ill with various types of diseases. Freshwater fishes are an important protein source for people of many countries. Fish farming in various parts of the world has increased many folds in the last decade. Bacterial hemorrhagic septicemia, lernaeasis, saprolegniasis and anoxia are the most frequently occurring fish diseases in pond fishes. Fungal infections are among the most general diseases seen in temperate fish. Water moulds infections cause losses of freshwater fishes and their eggs in both natural and commercial fish farms. Although, infection as a result of microbial contamination does not frequently result in disease but ecological stress may upset the balance between the probable pathogens and their hosts. Prevention is, as always, the best medicine. Most infe ctions can be successfully treated if caught early.


2022 ◽  
Vol 2153 (1) ◽  
pp. 012017
Author(s):  
K M Valdez-Prudencio ◽  
S Arceo-Diaz ◽  
J A Bricio-Barrios ◽  
E E Bricio-Barrios

Abstract Fluid mechanics is one of the oldest areas of physics with the greatest number of applications in everyday life. This area became more versatile when mass and energy transport equations were incorporated. Together, these equations allow describing a wide variety of case studies with great precision. Among cases available in the open literature, aquaculture is one of the most important due to the growing need for food sources for human consumption, the nutritional value of many fish varieties, the low cost of the maintenance of fish farms. Dissolved oxygen is one of the most relevant parameters ensuring water quality in fish farming. Many fish farms use permanent artificial aeration systems for maintaining the oxygen level within the recommended range used, causing an increasing energy consumption. Therefore, this work proposes an equation and validation, based on equations hydraulics and transport phenomenon, capable of determining the maximum concentration of dissolved oxygen in the body from the operating parameters of the tilapia rearing pond.


2015 ◽  
Vol 4 (4) ◽  
pp. 113-116
Author(s):  
Olga Nikolaevna Gutsulyuk

In fish farming practices, stocking density is a key factor in determining the productivity and profitability of commercial fish farms. the use of probiotics as farm animal feed supplements increases the animals growth and improve its health by increasing its resistance to disease. this study was undertaken to examine the effect of dietary probiotics on yearling hybrids of russian and siberian sturgeon, based on hematological profile and piscicultural performance. the experience was carried out in 4 groups (control and treatment). in control group, probiotic was not applied in diet but in treatment groups, probiotics Bacell, Monosporin, and Prolam was administered in feed at a concentration of 2%. as a result, a positive influence on growth performance and survival rate were assessed together with improvement of physiological status (based on hematological indices). thus, probiotics addition to diet had the effect on erythrocyte count, hemoglobin, leucocyte count, percent of lymphocyte, serum total protein, percent of neutrophile and monocyte the results suggest that probiotics can stimulate immune parameters hybrids of russian and siberian sturgeon and can be successfully used in fishfarming.


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