Purpose. Largemouth bass (Micropterus salmoides), a fish species native to freshwaters of North America, is a promising object of aquaculture all over the world. This is evidenced by the fact that this species is currently actively cultivated in aquaculture of more than 50 countries worldwide, on all continents, with the exception of Antarctica and Australia, both for recreational fishing and as a table fish. If we consider the history of breeding and cultivation of the largemouth bass, we can note a tendency to a continuous expansion of the stages of cultivation and transition from polyculture to monoculture. For example, in the first half of the last century, fish farms in the United States raised mainly juveniles of largemouth bass for stocking to natural water bodies, but currently most farms use the full production cycle from fry to marketable fish. In addition, earlier largemouth bass was used in many countries mainly as an additional object of aquaculture (biomeliorator) to increase the production of common carp, but now, thanks to the development of recreational fishing, it is increasingly becoming the main object of aquaculture, which is facilitated by the intensification of cultivation methods. Nowadays, there are many methods of growing largemouth bass, from the simplest, extensive, when fish are raised on natural food supply, to most intensive using flow-through aquaculture systems and off-season spawning. On the territory of Ukraine, it may be effective to use pond aquaculture of largemouth bass, which begins from the production of larvae and fry at fish farms. This stage of fish farming will be discussed in this article. Findings. This article contains brief information on method of natural spawning of largemouth bass, filling ponds with water, selection of broodstock and norms for their stocking to spawning ponds, spawning behavior of fish, peculiarities of caring for larvae and fry, sorting juveniles, as well as minimizing injuries during manipulations with fish. Practical value. Information from this review can be used for development of a new method for production of largemouth bass larvae and fry at warm-water pond farms in Ukraine, taking into account climatic conditions and local specificities of aquaculture. Key words: Largemouth bass, Micropterus salmoides, recreation fishing, sport fishing, pond fish farm, aquaculture, biomeliorator, larvae, fry, polyculture, monoculture, intensification, perspective species.
{"title":"Producing and rearing largemouth bass (Micropterus salmoides (Lacеpеde, 1802)) fry in conditions of warm-water pond fish farms (a review)","authors":"I. Hrytsyniak, V. Guschin, O. Polishchuk","doi":"10.15407/FSU2021.01.022","DOIUrl":"https://doi.org/10.15407/FSU2021.01.022","url":null,"abstract":"Purpose. Largemouth bass (Micropterus salmoides), a fish species native to freshwaters of North America, is a promising object of aquaculture all over the world. This is evidenced by the fact that this species is currently actively cultivated in aquaculture of more than 50 countries worldwide, on all continents, with the exception of Antarctica and Australia, both for recreational fishing and as a table fish. If we consider the history of breeding and cultivation of the largemouth bass, we can note a tendency to a continuous expansion of the stages of cultivation and transition from polyculture to monoculture. For example, in the first half of the last century, fish farms in the United States raised mainly juveniles of largemouth bass for stocking to natural water bodies, but currently most farms use the full production cycle from fry to marketable fish. In addition, earlier largemouth bass was used in many countries mainly as an additional object of aquaculture (biomeliorator) to increase the production of common carp, but now, thanks to the development of recreational fishing, it is increasingly becoming the main object of aquaculture, which is facilitated by the intensification of cultivation methods. Nowadays, there are many methods of growing largemouth bass, from the simplest, extensive, when fish are raised on natural food supply, to most intensive using flow-through aquaculture systems and off-season spawning. On the territory of Ukraine, it may be effective to use pond aquaculture of largemouth bass, which begins from the production of larvae and fry at fish farms. This stage of fish farming will be discussed in this article. Findings. This article contains brief information on method of natural spawning of largemouth bass, filling ponds with water, selection of broodstock and norms for their stocking to spawning ponds, spawning behavior of fish, peculiarities of caring for larvae and fry, sorting juveniles, as well as minimizing injuries during manipulations with fish. Practical value. Information from this review can be used for development of a new method for production of largemouth bass larvae and fry at warm-water pond farms in Ukraine, taking into account climatic conditions and local specificities of aquaculture. Key words: Largemouth bass, Micropterus salmoides, recreation fishing, sport fishing, pond fish farm, aquaculture, biomeliorator, larvae, fry, polyculture, monoculture, intensification, perspective species.","PeriodicalId":30821,"journal":{"name":"Ribogospodars''ka Nauka Ukraini","volume":"1 1","pages":"22-38"},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67113608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Kurbanov, S. Kim, N. Titova, S. Karabaeva, E. Rahimjanova
Purpose. Uzbekistan aquaculture has a huge deficit of balanced feed. In a case of feed production from local ingredients, the problem is the lack of stable source of animal protein. The purpose of this experiment was to find out how swan mussel Anodonta used as a feed additive for African catfish will affect fish growth. Methodology. Minced Anodonta was prepared as follow: mussels were collected from the bottom of ponds after fish harvesting; the collected mussels were kept in the separate aquarium; every day several mussels were taken out, their shells were opened and muscle parts were separated the (mostly mussel leg); then the separated muscle were kept for disinfection in KMnO4 solution of low concentration during 20 min and then crushed to a minced state. Feed was given to African catfish according to a special scheme at the rate of 7% of the fish weight. The control group did not receive the minced mussels and fish were fed with carp feeds.The mixed feed in the experimental group #1 consisted of 50% carp feed and 50% minced mussel. In the experimental group #2, African catfish were fed with minced mussels only. Findings. The experiment showed the clear advantage of feed containing 50% of minced clams and 50% of carp feed. The African catfish fed with this feed significantly overtook fish from the control group in weight because this feed turned out to be either the most balanced in composition or better absorbed by catfish. In the control group, the 100% mixed feed gave an increase of 83.8% in weight and 20.5% in length; in the experimental group #1, the feed (50% mixed feed : 50% minced mussel) gave an increase of 136% in weight and 31.1% in length; at the experiment #2 (100% minced mussel), the feed gave an increase of 95.5% and 20.1% in length. Originality. For the first time the swan mussel was used as a source of animal protein for African catfish.This experiment was conducted for the first time, and it was also found for the first time that the addition of minced swan mussel to the feed of African catfish contributed to a significant weight gain compared to the conventional feed:52.5% more compared to conventional feed and 40.5% more compared to pure minced swan mussel. Practical value. Aquaculturenow is in search of source of animal proteinin connection with growing global deficit of a high quality fishmeal for fish feed production. Use of bivalve mollusks Anodonta, which are also a pest in pond farms, is promising feed for obtaining physiologically determined weight gains. Key words: aquaculture, Africaт catfish (Clarias gariepinus (Burchell, 1822)), feed, animal protein, plant protein, water quality, swan mussel (Anodonta cygnea (Linne, 1758)), weight gain.
{"title":"Use of swan mussel (Anodonta cygnea (Linne, 1758)) as a feed additive for african catfish (Clarias gariepinus (Burchell, 1822))","authors":"A. Kurbanov, S. Kim, N. Titova, S. Karabaeva, E. Rahimjanova","doi":"10.15407/FSU2021.01.112","DOIUrl":"https://doi.org/10.15407/FSU2021.01.112","url":null,"abstract":"Purpose. Uzbekistan aquaculture has a huge deficit of balanced feed. In a case of feed production from local ingredients, the problem is the lack of stable source of animal protein. The purpose of this experiment was to find out how swan mussel Anodonta used as a feed additive for African catfish will affect fish growth. Methodology. Minced Anodonta was prepared as follow: mussels were collected from the bottom of ponds after fish harvesting; the collected mussels were kept in the separate aquarium; every day several mussels were taken out, their shells were opened and muscle parts were separated the (mostly mussel leg); then the separated muscle were kept for disinfection in KMnO4 solution of low concentration during 20 min and then crushed to a minced state. Feed was given to African catfish according to a special scheme at the rate of 7% of the fish weight. The control group did not receive the minced mussels and fish were fed with carp feeds.The mixed feed in the experimental group #1 consisted of 50% carp feed and 50% minced mussel. In the experimental group #2, African catfish were fed with minced mussels only. Findings. The experiment showed the clear advantage of feed containing 50% of minced clams and 50% of carp feed. The African catfish fed with this feed significantly overtook fish from the control group in weight because this feed turned out to be either the most balanced in composition or better absorbed by catfish. In the control group, the 100% mixed feed gave an increase of 83.8% in weight and 20.5% in length; in the experimental group #1, the feed (50% mixed feed : 50% minced mussel) gave an increase of 136% in weight and 31.1% in length; at the experiment #2 (100% minced mussel), the feed gave an increase of 95.5% and 20.1% in length. Originality. For the first time the swan mussel was used as a source of animal protein for African catfish.This experiment was conducted for the first time, and it was also found for the first time that the addition of minced swan mussel to the feed of African catfish contributed to a significant weight gain compared to the conventional feed:52.5% more compared to conventional feed and 40.5% more compared to pure minced swan mussel. Practical value. Aquaculturenow is in search of source of animal proteinin connection with growing global deficit of a high quality fishmeal for fish feed production. Use of bivalve mollusks Anodonta, which are also a pest in pond farms, is promising feed for obtaining physiologically determined weight gains. Key words: aquaculture, Africaт catfish (Clarias gariepinus (Burchell, 1822)), feed, animal protein, plant protein, water quality, swan mussel (Anodonta cygnea (Linne, 1758)), weight gain.","PeriodicalId":30821,"journal":{"name":"Ribogospodars''ka Nauka Ukraini","volume":"1 1","pages":"112-122"},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67113698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O. Honcharova, P. Kutishchev, Ye. Кorzhov, Yurii M. Kovalov
Purpose. To study the effect of the feed factor on the functional state of the carp body (Cyprinus carpio L.) under the conditions of growing in a model recirculation system of complex purpose with the use of intensive technologies. Methodology. The experimental part of the study was performed at the laboratory of the Scientific and Research Lab “Aquaculture Perspectives”, Scientific and Research Laboratory of “Physiological and Biochemical Studies named after S. Pentelyuk”, Scientific and Research Laboratory of Ecological and Chemical Analysis and Water Monitoring of the State Education Institution “Kherson State Agrarian and Economical University” and at the laboratory of the “Kherson Production and Experimental Hatchery of Ordinary Fish Breeding”. Carp growing was carried out in the model installation of tanks recirculation type with using intensive technologies, alternative energy sources, method of gas-discharge visualization. During the experiment following was performed: clinical examination of fish, control of growth rate and weight gain, survival rate, physiological state and morpho-functional parameters of blood in accordance with conventional methods. Findings. The general functional state of the organism of the common carp Cyprinus carpio L. in ontogenesis was investigated against the background of activation of adaptive-compensatory mechanisms, metabolic processes under the influence of the food factor under rearing conditions in a model system for complex purposes in aquaculture. Positive results of analysis of morpho-functional, biochemical parameters of carp blood were obtained when feeding with a feed mixture from natural fodder and biologically active substances. The degree of influence of the fodder factor as a corrector of metabolic processes in the carp organism when growing the marketable mass has been studied. Originality. The conducted analysis of gas-discharge visualization of static GDV-gram parameters of optoelectronic emission of young-of-the-year carp showed differences in functional activity in the organism of fish from the experimental group in relation to the control group, which was also substantiated and argumentative by the parameters of carp blood and development rate. Practical value. The proposed method of feeding carp in the recirculation system contributes to the correction of metabolic processes in their body, which makes it possible to reduce the cost through the use of natural feed, the cultivation of which is introduced into the recirculation system, the formation of a mixture of our own production, using the GDV-method diagnostics of objects and energy-saving elements in technological map. Key words: carp, vitality, feeding factor, fish stocking, modular system, intensive technology.
{"title":"Technological aspects of intensive technologies using in the commercial cultivation of common carp (Cyprinus carpio (Linnaeus, 1758))","authors":"O. Honcharova, P. Kutishchev, Ye. Кorzhov, Yurii M. Kovalov","doi":"10.15407/FSU2021.01.005","DOIUrl":"https://doi.org/10.15407/FSU2021.01.005","url":null,"abstract":"Purpose. To study the effect of the feed factor on the functional state of the carp body (Cyprinus carpio L.) under the conditions of growing in a model recirculation system of complex purpose with the use of intensive technologies. Methodology. The experimental part of the study was performed at the laboratory of the Scientific and Research Lab “Aquaculture Perspectives”, Scientific and Research Laboratory of “Physiological and Biochemical Studies named after S. Pentelyuk”, Scientific and Research Laboratory of Ecological and Chemical Analysis and Water Monitoring of the State Education Institution “Kherson State Agrarian and Economical University” and at the laboratory of the “Kherson Production and Experimental Hatchery of Ordinary Fish Breeding”. Carp growing was carried out in the model installation of tanks recirculation type with using intensive technologies, alternative energy sources, method of gas-discharge visualization. During the experiment following was performed: clinical examination of fish, control of growth rate and weight gain, survival rate, physiological state and morpho-functional parameters of blood in accordance with conventional methods. Findings. The general functional state of the organism of the common carp Cyprinus carpio L. in ontogenesis was investigated against the background of activation of adaptive-compensatory mechanisms, metabolic processes under the influence of the food factor under rearing conditions in a model system for complex purposes in aquaculture. Positive results of analysis of morpho-functional, biochemical parameters of carp blood were obtained when feeding with a feed mixture from natural fodder and biologically active substances. The degree of influence of the fodder factor as a corrector of metabolic processes in the carp organism when growing the marketable mass has been studied. Originality. The conducted analysis of gas-discharge visualization of static GDV-gram parameters of optoelectronic emission of young-of-the-year carp showed differences in functional activity in the organism of fish from the experimental group in relation to the control group, which was also substantiated and argumentative by the parameters of carp blood and development rate. Practical value. The proposed method of feeding carp in the recirculation system contributes to the correction of metabolic processes in their body, which makes it possible to reduce the cost through the use of natural feed, the cultivation of which is introduced into the recirculation system, the formation of a mixture of our own production, using the GDV-method diagnostics of objects and energy-saving elements in technological map. Key words: carp, vitality, feeding factor, fish stocking, modular system, intensive technology.","PeriodicalId":30821,"journal":{"name":"Ribogospodars''ka Nauka Ukraini","volume":"1 1","pages":"5-21"},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67113483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose. Tosubstantiate scientifically and improve the technology of producing table caviar from ovulated sterlet eggs, which ensures the preservation of natural biologically active compounds and the stability of quality parameters. To investigate table caviar for microbiological, toxicological and toxico-biological safety. To determine the prospect of using the data in the practice of caviar sturgeon breeding. Methodology. Primary materials were obtained in the conditions of «Oasis Bisan» JSC. The results obtained were processed by organoleptic, biochemical, microbiological, toxicological, toxic-biological methods, as well as by the method of variation statistics using MS Excel with an emphasis on standard errors. Findings. Application of the heat treatment mode (78°C) of ovulated sterlet eggs while reducing the total time of the technological process to 1.0 minute contributes to the preservation of the integrity of food product components. Sterlet eggs from recirculated aquaculture system differed from a similar product from fish from natural waters by a lower mineral content (by 1.2%), an increased content of dry matter (by 8.1%), protein (by 7.5%) and lipids (by 3.7%). This fact indicates a decrease in the water content of the product and the acquisition of optimal gastronomic qualities. Sterlet caviar proteins were found to contain a full set of essential amino acids, the chemical score of which exceeded 100%; no limiting amino acids were found. Comparative analysis of sterlet caviar from recirculated aquaculture systems and from natural habitats showed the absence of significant differences in the amino acid composition, which demonstrated the biological value of the product. The use of the mode of short-term high-temperature heat treatment allows ensuring sufficient safety of the food product. The absence of E. coli and yeast in caviar was found. Pb, Cd, As and Hg contents in sterlet caviar were significantly lower than the maximum permissible levels. The total value of hexachloran and isomers was 0,0027mg/kg; DDT and metabolites – 0,016 mg/kg, polychlorinated biphenyls – 0,017 mg/kg and corresponded to permissible limits. The absence of altered forms, growth inhibition or death of tetrachimens confirms the toxicological safety of the finished product. The shelf life of the finished product without preservative is 6 months at a storage temperature of minus 2°C – minus 4°C, which parametrically meets the requirements of TU U 10.2-37758242-002: 2018. Originality. The technology of processing ovulated sterlet caviar has been scientifically substantiated and experimentally tested. New data on the comparison of the results of classical pasteurization and short-term high-temperature heat treatment of caviar are presented. For the first time, the amino acid composition of sterlet caviar was studied under conditions of recirculated aquaculture systems, and the analysis of grainy caviar for hexachloran and isomers, DDT and metabolites, and polychlo
意图科学论证并改进了用排卵的鹅蛋生产餐桌鱼子酱的工艺，保证了天然生物活性物质的保存和质量参数的稳定性。探讨食用鱼子酱的微生物、毒理学和毒生物安全性。确定在鱼子酱鲟鱼养殖实践中使用这些数据的前景。方法论主要材料是在“绿洲比桑”股份公司的条件下获得的。通过感官、生物化学、微生物学、毒理学、毒性生物学方法以及使用MS Excel的变异统计方法对获得的结果进行处理，重点是标准误差。调查结果。应用热处理模式（78°C）处理排卵的小牡蛎蛋，同时将工艺过程的总时间缩短至1.0分钟，有助于保持食品成分的完整性。来自循环水产养殖系统的Sterlet蛋与来自天然水域的鱼类的类似产品的不同之处在于矿物质含量较低（1.2%），干物质含量增加（8.1%），蛋白质含量增加（7.5%）和脂质含量增加（3.7%）。这一事实表明产品的含水量降低，并获得了最佳的美食品质。Sterlet鱼子酱蛋白被发现含有全套必需氨基酸，其化学评分超过100%；未发现限制性氨基酸。对再循环水产养殖系统和自然栖息地的牡蛎鱼子酱的比较分析表明，氨基酸组成没有显著差异，这证明了该产品的生物价值。短期高温热处理模式的使用可以确保食品的足够安全。鱼子酱中不含大肠杆菌和酵母。牡蛎鱼子酱中Pb、Cd、As和Hg含量均明显低于最高允许水平。六氯安及其异构体的总含量为00027mg/kg；滴滴涕及其代谢物–0016 mg/kg，多氯联苯–0017 mg/kg，并符合允许限值。不存在形态改变、生长抑制或死亡的四环素证实了成品的毒理学安全性。不含防腐剂的成品在零下2°C–零下4°C的储存温度下的保质期为6个月，参数上符合TU U 10.2-37758242-002:2018的要求。独创性经过科学论证和实验验证，已成功开发出具有排卵期的牡蛎鱼子酱。介绍了对鱼子酱进行经典巴氏杀菌和短期高温热处理的结果进行比较的新数据。首次在循环养殖条件下研究了牡蛎鱼子酱的氨基酸组成，并对颗粒鱼子酱中的六氯乙烷及其异构体、滴滴涕及其代谢产物和多氯联苯进行了分析。澄清和补充了鱼子酱在工艺加工过程中的化学成分信息。实用价值。与传统的巴氏杀菌法相比，改进的生鱼子酱加工工艺具有优势。实验证实了使用替代技术以节省能源和保持传统感官特性、营养价值和成品安全性的方便性。根据所进行的研究结果，TU的技术文件《颗粒鲟鱼鱼子酱生产技术指导书》和《鱼子酱选择工作指导书》是根据国家卫生和流行病学监测机构和国家标准的既定程序制定和商定的。所开发的技术已在食品sterlet鱼子酱试点批次的开发中进行了测试，这使得“绿洲比萨”企业有可能引入食品安全管理系统，并由国际认证机构TUV SUD进行认证审计，以符合国际标准ISO 22000:2005。委员会，“绿洲野牛”企业获得了欧盟注册号：a-UA-14-20-121-VIII-PP，有权向欧盟国家出口产品（鲟鱼鱼子酱）。关键词：工艺、热处理、巴氏杀菌、食品鱼子酱、生物价值、安全、成品。
{"title":"Improvement of the technology of production of table grainy sterlet (Acipenser ruthenus (Linnaeus, 1758)) caviar","authors":"A. Koziy","doi":"10.15407/FSU2021.01.039","DOIUrl":"https://doi.org/10.15407/FSU2021.01.039","url":null,"abstract":"Purpose. Tosubstantiate scientifically and improve the technology of producing table caviar from ovulated sterlet eggs, which ensures the preservation of natural biologically active compounds and the stability of quality parameters. To investigate table caviar for microbiological, toxicological and toxico-biological safety. To determine the prospect of using the data in the practice of caviar sturgeon breeding. Methodology. Primary materials were obtained in the conditions of «Oasis Bisan» JSC. The results obtained were processed by organoleptic, biochemical, microbiological, toxicological, toxic-biological methods, as well as by the method of variation statistics using MS Excel with an emphasis on standard errors. Findings. Application of the heat treatment mode (78°C) of ovulated sterlet eggs while reducing the total time of the technological process to 1.0 minute contributes to the preservation of the integrity of food product components. Sterlet eggs from recirculated aquaculture system differed from a similar product from fish from natural waters by a lower mineral content (by 1.2%), an increased content of dry matter (by 8.1%), protein (by 7.5%) and lipids (by 3.7%). This fact indicates a decrease in the water content of the product and the acquisition of optimal gastronomic qualities. Sterlet caviar proteins were found to contain a full set of essential amino acids, the chemical score of which exceeded 100%; no limiting amino acids were found. Comparative analysis of sterlet caviar from recirculated aquaculture systems and from natural habitats showed the absence of significant differences in the amino acid composition, which demonstrated the biological value of the product. The use of the mode of short-term high-temperature heat treatment allows ensuring sufficient safety of the food product. The absence of E. coli and yeast in caviar was found. Pb, Cd, As and Hg contents in sterlet caviar were significantly lower than the maximum permissible levels. The total value of hexachloran and isomers was 0,0027mg/kg; DDT and metabolites – 0,016 mg/kg, polychlorinated biphenyls – 0,017 mg/kg and corresponded to permissible limits. The absence of altered forms, growth inhibition or death of tetrachimens confirms the toxicological safety of the finished product. The shelf life of the finished product without preservative is 6 months at a storage temperature of minus 2°C – minus 4°C, which parametrically meets the requirements of TU U 10.2-37758242-002: 2018. Originality. The technology of processing ovulated sterlet caviar has been scientifically substantiated and experimentally tested. New data on the comparison of the results of classical pasteurization and short-term high-temperature heat treatment of caviar are presented. For the first time, the amino acid composition of sterlet caviar was studied under conditions of recirculated aquaculture systems, and the analysis of grainy caviar for hexachloran and isomers, DDT and metabolites, and polychlo","PeriodicalId":30821,"journal":{"name":"Ribogospodars''ka Nauka Ukraini","volume":"1 1","pages":"39-55"},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48701110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose. To investigate peculiarities of feeding of paddlefish during the second year of life in polyculture with carp fish in ponds of Ukrainian Polissia. Methodology. A North American zooplanktophage belonging to sturgeons, the paddlefish was reared in polyculture with carp, hybrids of silver and bighead carps, as well as grass carp in pond with areas of 1 hectare on natural food supply. Development of the natural food supply was stimulated by applying cattle manure into ponds at an amount of 1 ton/ha. The stocking density of age‒1 paddlefish with an average weight of 143 g was 150 ind./ha, The total stocking density of all polyculture objects was 520 ind./ha. The determination of the nutritional and growth characteristics of fish, the qualitative composition of forage aquatic organisms and their biomass was carried out using well‒known methods. The main physicochemical parameters of water quality were investigated during fish rearing using generally accepted recommendations in fish farming and hydrochemistry. Findings. The environmental conditions of the pond mainly met the biological requirements for the studied aquaculture objects. A periodic decrease in dissolved oxygen concentration to 1.5‒2.0 mgO2/dm3 was observed, which could slow down fish growth. During sampling to determine the feeding habits of paddlefish, the zooplankton biomass in the pond varied within 1.11‒6.44 g/m3, with the predominance of Cladocera and Copepoda. At the end of the study period, age‒1+ paddlefish reached an average weight of 979.0 g with a fish production of 120.4 kg/ha and a survival rate of 82.0%. The total fish production for all polyculture objects was 502.3 kg/ha. The average digestive tract fullness index of paddlefish varied within 199.72‒459.0030/000. The diet of paddlefish was dominated by lower crustaceans with a predominance of Cladocera (65.28‒86.23%). The role of Copepoda in paddlefish nutrition increased at the end of the culture season (up to 32.76%). Rotifera and other forage aquatic organisms did not have a significant value in the paddlefish diet (up to 3.85%). A significant amount of detritus swallowed by fish was observed (13.43‒31.31% of the digestive tract content). A selectivity in the consumption of paddlefish of various groups of zooplankton organisms was noted with the selectivity index for Cladocera at the level of 1.23‒1.48. Originality. New data were obtained on the feeding habits of paddlefish in Ukrainian Polissia. Practical value. The study results are an integral part of the database for the development of improved technologies for pond fish farming in Ukraine. Key words: paddlefish, pond aquaculture, fish polyculture, natural food supply, fish feeding.
{"title":"Some pecularities of feeding of paddlefish (Polyodon spathula (Walbaum, 1792)) in the process of its growing to the marketable weight in ponds of Ukranian Polissia","authors":"B. Hankevych, O. Tretiak, T. Hryhorenko, O. Kolos","doi":"10.15407/FSU2021.01.056","DOIUrl":"https://doi.org/10.15407/FSU2021.01.056","url":null,"abstract":"Purpose. To investigate peculiarities of feeding of paddlefish during the second year of life in polyculture with carp fish in ponds of Ukrainian Polissia. Methodology. A North American zooplanktophage belonging to sturgeons, the paddlefish was reared in polyculture with carp, hybrids of silver and bighead carps, as well as grass carp in pond with areas of 1 hectare on natural food supply. Development of the natural food supply was stimulated by applying cattle manure into ponds at an amount of 1 ton/ha. The stocking density of age‒1 paddlefish with an average weight of 143 g was 150 ind./ha, The total stocking density of all polyculture objects was 520 ind./ha. The determination of the nutritional and growth characteristics of fish, the qualitative composition of forage aquatic organisms and their biomass was carried out using well‒known methods. The main physicochemical parameters of water quality were investigated during fish rearing using generally accepted recommendations in fish farming and hydrochemistry. Findings. The environmental conditions of the pond mainly met the biological requirements for the studied aquaculture objects. A periodic decrease in dissolved oxygen concentration to 1.5‒2.0 mgO2/dm3 was observed, which could slow down fish growth. During sampling to determine the feeding habits of paddlefish, the zooplankton biomass in the pond varied within 1.11‒6.44 g/m3, with the predominance of Cladocera and Copepoda. At the end of the study period, age‒1+ paddlefish reached an average weight of 979.0 g with a fish production of 120.4 kg/ha and a survival rate of 82.0%. The total fish production for all polyculture objects was 502.3 kg/ha. The average digestive tract fullness index of paddlefish varied within 199.72‒459.0030/000. The diet of paddlefish was dominated by lower crustaceans with a predominance of Cladocera (65.28‒86.23%). The role of Copepoda in paddlefish nutrition increased at the end of the culture season (up to 32.76%). Rotifera and other forage aquatic organisms did not have a significant value in the paddlefish diet (up to 3.85%). A significant amount of detritus swallowed by fish was observed (13.43‒31.31% of the digestive tract content). A selectivity in the consumption of paddlefish of various groups of zooplankton organisms was noted with the selectivity index for Cladocera at the level of 1.23‒1.48. Originality. New data were obtained on the feeding habits of paddlefish in Ukrainian Polissia. Practical value. The study results are an integral part of the database for the development of improved technologies for pond fish farming in Ukraine. Key words: paddlefish, pond aquaculture, fish polyculture, natural food supply, fish feeding.","PeriodicalId":30821,"journal":{"name":"Ribogospodars''ka Nauka Ukraini","volume":"1 1","pages":"56-65"},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48136129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose. Forming a thematic bibliographic list of publications on the morphological, ecological, physiological and biochemical characteristics of the tench (Tinca tinca L.), its cultivation and the state of its stocks in natural water bodies. Methodology. The complete and selective methods were applied in the process of the systematic search. The bibliographic core has been formed with the publications exclusively in Ukrainian and Russian from the fund of scientific library of the Institute of Fisheries NAAS of Ukraine. Practical value. The list may be useful for scientists, practitioners, students, whose area of interests includes the study of physiological, biochemical, ecological and other characteristics of cyprinids, in particular tench, as well as the restoration of its stocks. Key words: tench, reproduction, morphological, physiological and biochemical characteristics, fishing.
{"title":"Tench (Tinca tinca (Linnaeus, 1758)). Thematic bibliography","authors":"I. Hrytsynyak, T. Shvets","doi":"10.15407/FSU2021.01.123","DOIUrl":"https://doi.org/10.15407/FSU2021.01.123","url":null,"abstract":"Purpose. Forming a thematic bibliographic list of publications on the morphological, ecological, physiological and biochemical characteristics of the tench (Tinca tinca L.), its cultivation and the state of its stocks in natural water bodies. Methodology. The complete and selective methods were applied in the process of the systematic search. The bibliographic core has been formed with the publications exclusively in Ukrainian and Russian from the fund of scientific library of the Institute of Fisheries NAAS of Ukraine. Practical value. The list may be useful for scientists, practitioners, students, whose area of interests includes the study of physiological, biochemical, ecological and other characteristics of cyprinids, in particular tench, as well as the restoration of its stocks. Key words: tench, reproduction, morphological, physiological and biochemical characteristics, fishing.","PeriodicalId":30821,"journal":{"name":"Ribogospodars''ka Nauka Ukraini","volume":"1 1","pages":"123-134"},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67113705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O. Poplavska, Budgetary establishment «Methodological, V. Herasymchuk
Purpose. The role of aquaculture products in imports of Ukraine given the importance of imports in providing demand of the population on seafood and fish products and prospects are assessed, opportunities for import substitution of the main species of imported fish originating from aquaculture. Findings. Food security of any country is formed by the balance of its own production, exports and imports. In most European countries, the leading role in satisfaction of demand of the consumers for fish and seafood as of today is played by the import of fish and seafood (HS groups of commodoties 03, 1604, 1605 and 230120), and not their production in the country. Imports play a very important role in saturating the Ukrainian fish and seafood market. Due to the growing role of fish farming (aquaculture) in the world, the role of aquaculture products in Ukrainian imports for the period from 1996 to 2019 includes has been analyzed. The leading role of aquaculture products in the import of fresh and chilled products and relatively small in the subgroup of frozen products is noted. The higher prices of aquaculture products compared to catch fishery products has been confirmed. Assumptions are made about the possible replacement of import of the leading categories of imported products originating from aquaculture and about probably the most advanced technologies of fish farming and species of aquaculture in Ukraine with the current structure and traffic of commodities in global aquaculture and current expenditures of Ukraine on R & D in aquaculture. Practical value. The data obtained can be useful and used by scientists, practitioners, students, specialists, whose areas of interest include aquaculture and imports, exports of fish products. Keywords: import, aquaculture, fish farming, replacement of import.
{"title":"OPPORTUNITIES FOR REPLACEMENT OF IMPORTED AQUACULTURE PRODUCTS IN UKRAINE","authors":"O. Poplavska, Budgetary establishment «Methodological, V. Herasymchuk","doi":"10.15407/fsu2020.04.022","DOIUrl":"https://doi.org/10.15407/fsu2020.04.022","url":null,"abstract":"Purpose. The role of aquaculture products in imports of Ukraine given the importance of imports in providing demand of the population on seafood and fish products and prospects are assessed, opportunities for import substitution of the main species of imported fish originating from aquaculture. Findings. Food security of any country is formed by the balance of its own production, exports and imports. In most European countries, the leading role in satisfaction of demand of the consumers for fish and seafood as of today is played by the import of fish and seafood (HS groups of commodoties 03, 1604, 1605 and 230120), and not their production in the country. Imports play a very important role in saturating the Ukrainian fish and seafood market. Due to the growing role of fish farming (aquaculture) in the world, the role of aquaculture products in Ukrainian imports for the period from 1996 to 2019 includes has been analyzed. The leading role of aquaculture products in the import of fresh and chilled products and relatively small in the subgroup of frozen products is noted. The higher prices of aquaculture products compared to catch fishery products has been confirmed. Assumptions are made about the possible replacement of import of the leading categories of imported products originating from aquaculture and about probably the most advanced technologies of fish farming and species of aquaculture in Ukraine with the current structure and traffic of commodities in global aquaculture and current expenditures of Ukraine on R & D in aquaculture. Practical value. The data obtained can be useful and used by scientists, practitioners, students, specialists, whose areas of interest include aquaculture and imports, exports of fish products. Keywords: import, aquaculture, fish farming, replacement of import.","PeriodicalId":30821,"journal":{"name":"Ribogospodars''ka Nauka Ukraini","volume":"1 1","pages":"22-37"},"PeriodicalIF":0.0,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48662019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Productivity of nursery ponds under the complex exposure to their ecosystem","authors":"Т. Hryhorenko, S. Mushyt, А. Bazaieva","doi":"10.15407/fsu2020.03.019","DOIUrl":"https://doi.org/10.15407/fsu2020.03.019","url":null,"abstract":"","PeriodicalId":30821,"journal":{"name":"Ribogospodars''ka Nauka Ukraini","volume":"3 1","pages":"19-32"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67113290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Some cytometric and biochemical parameters of the blood of Prussian carp (Carassius gibelio Bloch, 1782) of the Samara river, Dnepropetrovsk region","authors":"K. Mashkova, T. Sharamok","doi":"10.15407/fsu2020.03.109","DOIUrl":"https://doi.org/10.15407/fsu2020.03.109","url":null,"abstract":"","PeriodicalId":30821,"journal":{"name":"Ribogospodars''ka Nauka Ukraini","volume":"3 1","pages":"109-124"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67113457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
U. Kuts, I. Hrytsyniak, H. Kurinenko, Y. Tuchapsky
{"title":"Characteristic of exterior indicators of male of Amur wild carp (Cyprinus carpio haematopterus) of different genesis","authors":"U. Kuts, I. Hrytsyniak, H. Kurinenko, Y. Tuchapsky","doi":"10.15407/fsu2020.03.047","DOIUrl":"https://doi.org/10.15407/fsu2020.03.047","url":null,"abstract":"","PeriodicalId":30821,"journal":{"name":"Ribogospodars''ka Nauka Ukraini","volume":"3 1","pages":"47-56"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67113343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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