VESTNIK 3(19) 2019

VESTNIK 3(19) 2019
Date publication on the site:
2019-10-23 14:14:21
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UDC: 636.085.1(571.56)
Authors: Nyurgustana M. Alekseeva; Paraskovya P. Borisova; Varvara V. Romanova;
The article presents the results of scientific and economic experiment on studying the influence of feed additives, produced using local raw materials, on the metabolism of young animals of Kalmyk breed. The purpose of the research is to study the effect of feed additives, produced using local raw materials, on the digestibility and nutrient use of diets of young animals of beef breeds in Yakutia. The research work was carried out in the APC “Satabyl” of the Khangalassky ulus (region) of the Republic of Sakha (Yakutia). For carrying out scientific and business experiment, 4 groups of animals-analogues 10 animals each were formed taking into account age, body weight, and physiological state. Zootechnical analysis of feed chemical composition was studed in the laboratory for processing agricultural products and biochemical analysis of the FRC SB RAS YSRIA on the US NIRSCANER model 4250 analyzer. Nutrient use of rations by animals was determined by VIZh method, 1969. A balance experiment was carried out to determine the degree of influence of feed additives, produced using local raw materials (wheat “Prilenskaya 19”, barley “Tammi”, probiotic preparation “Sakhabactisubtil”), on the digestibility of ration nutrients. During the balance experiment, the amount of food eaten, their residues were taken into account, feces were collected. According to the scientific and economic experience, the diet of experimental groups in terms of energy nutrition corresponds to VIZh standards (1985). The difference in feeding was that the animals of the I-experimental group received brewer’s grains, mixed feed enriched with wheat “Prilenskaya 19” treated with “Sakhabaktisubtil” (10 ml), the II-experimental group received brewer’s grains, mixed feed enriched with barley “Tammi” processed with “Sakhabaktisubtil” (in the amount of 10 ml). The study on the use of feed additives produced using local raw materials: wheat “Prilenskaya 19”, barley “Tammi”, brewer's grains, the drug “Sakhabaktisubtil” and table salt balanced the diet for the missing nutrients and improved the palatability of the main feeds. Consumption of local feed additives by the young animals from the experimental groups led to small differences in nutrient digestibility ratios. At the same time, a high level of digestibility in young animals of the 1st experimental group as compared with the control and the 2nd experimental group was set for dry matter by 1.5 and 0.4 %; organic matter 1.4 and 0.1 %; crude protein by 2.1 and 1.2 %, crude fat by 1.8 and 1.0 % and crude fiber by 2.18 and 2.1 %, respectively.
UDC: 633.13:57.017.3
Authors: Galina A. Batalova; Anna A. , , Eremina; Nadezhda V. Krotova; Elena N. Vologzhanina; Olga A. Zhuikova;
The contrast of soil and climatic conditions in the regions of grain crops cultivation assumes the use of cultivars capable to form economically significant productivity in the conditions of instability of agro-climatic resources and low fertility of zone soils. The results of studying of 8 covered oats cultivars on the State variety testing sites (SVTS) of the Kostroma region in 2017–2018 are analyzed. The dependences of productivity on the location of a variety testing site, the influence of growing year conditions (r = 0.56) are established. The most significant influence was observed on the Galich SVTS (r = 0.73) and its absence – on the Manturovsk SVTS (r = –0.03). The productivity varied from 20.7 c/ha for a standard cultivar Krechet on the Manturovsk SVTS in 2017 up to 62.9 c/ha for a cultivar Ozon on the Galich SVTS in 2018. On the Galich SVTS, optimum conditions for the formation of high average yield of oats equal to 53.4 c/ha in 2017 (I = 21.1730) and 33.5 c/ha in 2018 (I = 1.2359) are noted. The greatest average yield is noted in a Berber cultivar (34.8 c/ha), with less variation within years and SVTSs (V = 28.9). Berber oats showed the highest stress resistance (Y2 – Y1 = –30.1), high homeostaticity (Hi = 3.11) and genotype stability (IS = 117.45; PUSS = 123.31) in the whole study. By the results of a variety testing, the covered oats cultivar Berber is included in the State Registry and approved for use in production since 2019 in the North-Western region of regionalization. For an objective assessment of a cultivar in the system of State testing, it is necessary to consider that the first year of studying is carried out with the use of seeds obtained in breeding institution. The more favorable the soil-and-climatic conditions and technological indicators of obtaining seeds are, the more likely the cultivar will provide a higher productivity on the SVTSs and vice versa. And only the second and subsequent years of variety testing using seeds obtained on the SVTS allow us to give an objective assessment of the cultivar.
UDC: 664.683
Authors: Anna T. Vasyukova; Anatoliy A. Slavyanskiy; Alexander V. Moshkin; Irina A. Bogonosova; Sergei I. Okhotnikov;
The article provides basic information on the rheological characteristics of yeast dough using malt in the process of its preparation. Malt is used as a natural baking powder. It also serves as an improver of the baking properties of flour. Baked goods made with the addition of malt from cereals and legumes aquire uniform, fine porosity and spicy bread aroma and taste. The aim of the research is to reveal the influence of malt from cereals and legumes on the intensity of enzymatic processes of baking. The research objectives are: preparation for the fermentation process of pea, barley, soybean, triticale, wheat and rye malt, the study of yeast raising power, baking of control and test samples of wheat bread on the basis of the proposed leavens. Methods of research: organoleptic, reological, physical and chemical. The results of the study and discussion. Dough mixing was carried out in two stages: setting the sponge and mixing it with dough. The sponge was made of malt and yeast, flour and water. The dough was baked to a moisture content of 44 %. Malt concentration was 1.0–3.0 %. Introducing malt of more than 3.0 % is not desirable. Activation of dough fermentation was carried out through intensive mixing. It is found that dough loosening on activated yeast and malt usage has values higher than the control. It was found that after 1 hour the indices of loosening of experimental samples exceed the control by 2.2 times. The marked increase in dough fermentation rate persists towards the end of the process. It was found that the degree of looseness of the experimental dough is 1.5 times higher than the control. It is proved that the introduction of malt preparations leads to an intensification of the process of making dough from wheat flour. At the same time, the time of dough mixing is reduced by reducing the duration of fermentation on average by 1.5–2 times. It depends on the dosage and type of malt applied. According to the results of organoleptic evaluation, the high scores were obtained using wheat malt. It was noted that pea and barley malt are slightly inferior to wheat malt in dough fermentation rate. Conclusions. The minimum score was fixed for wheat bread with rye malt.
UDC: 636.068
Authors: Pavel M. Klenovitsky; Baylar S. Iolchiev; Vugar A. Bagirov;
Introduction. The state of the nucleolar apparatus, assessed by silvering is one of the criteria characterizing the level of proliferation and protein biosynthesis in normal and pathological conditions. The number of NOR in lymphocytes is species-specific and correlates with the number of ribosomal gene clusters. The connection of the parameters characterizing the activity of the nucleolar organizers with the manifestation of polygenic traits is noted. Purpose of the study. The aim of this study was to evaluate the main characteristics of argyrophilic regions in interphase lymphocytes of goats of different genotypes on the basis of computer analysis and to select the main parameters for assessing the state of NOR using computer analysis. Materials and methods. The state of the nucleolus apparatus was studied in peripheral blood lymphocytes obtained from cross-breeding goats of four genotypes: cross-breeds of goats of Karachai and Boer breeds with hybrid F1 of Siberian ibex and domestic goat, descendants of crossbreeding hybrids F1 and F2 of Siberian ibex with domestic goat and hybrids of F1 of goats of Karachai breed with Caucasian wild goat. Image processing and analysis was performed using Image Scope 1.0 software according to the above algorithm. Results, discussion. In most parameters characterizing the state of the nucleolar organizers, crosses of the Karachai breed with F1 hybrid and hybrids of this breed with the Caucasian wild goat were significantly (p ˂ 0.05) superior to crosses of goats of the Boer breed with F1 hybrid. A strong correlation (r > 0.80; p < 0.001) was observed between the optical densities DN and DF, the difference between these densities with the total area of AgNOR and the optical equivalent of bound silver (OENOR). Conclusion. To assess the state of the nucleolar system, it is advisable to take into account the number of AgNOR, as well as the average optical densities of AgNOR (DNOR), the nucleus (DN), and the AgNOR-free zone (DF).
UDC: 638.1
Authors: Boris F. Lavrentiev; Maksim S. Koval;
Bee venom is a product of the secretory activity of bee venom glands, and is part of many drugs and is highly valued in medical practice. Collecting bee venom in our country will allow us to solve the most important problem of import substitution and provide the domestic pharmaceutical industry with our own raw materials. Currently, the most common technologies for collecting bee venom are electric methods of collecting bee venom due to irritation of bees with electrical signals of a certain frequency and shape. Under the influence of annoying signals, the bees sting the glass in the venom receivers, leaving venom on it, then the glass is removed from the venom receiver and, in laboratory conditions, the venom is removed from the glass. The main disadvantages of all currently existing electric technologies for collecting bee venom are the low productivity of the beekeeper in collecting bee venom, the inability to set an individual operating mode for each beehive when collecting venom depending on the state of the bee colonies, and the high cost of the venom collection system due to the need to have wire lines for each hive, a central device for generating annoying signals and transport devices for equipment moving and difficulties in operating bee venom collection system. The proposed technology of collecting bee venom can significantly increase the beekeeper’s labor productivity through the use of an individual block of generating annoying signals in each hive, reduce the cost of the equipment and significantly increase its reliability by eliminating the central device for generating annoying signals and all wired communication lines with the hives. The article provides a block diagram of bee venom collection system “Muksh 7”, which uses the proposed technology for collecting bee venom and describes its operation. In 2020, it is planned to conduct field trials of the bee venom collection system “Muksh 7”, with the proposed technology for collecting venom in apiaries of the Mari El Republic.
UDC: 631.52.11;633.15
Authors: Yuri A. Lapshin; Vladimir A. Maksimov; Rimma I. Zolotareva;
One of the most accessible ways to stabilize the production of feed grain in the north-east of the European territory of Russia is to expand the species and varietal diversity of forage crops, in particular, by increasing the acreage of triticale. The study of grain productivity of spring triticale varieties, depending on the level of mineral fertilizers, was conducted in the Mari Research Institute of Agriculture – branch of the FASC of the North-East in a two-factor experiment: Factor A is a cultivar of spring triticale: Rovnya (St), Saur, Khaykar, Dobroe, Zaozerye. Factor B – mineral fertilizers: Control (without fertilizers), N30P30K30, N60P60K60, N90P60K60.The tested varieties are able to form a high yield of grain and total biomass. With an increase in the rate of mineral fertilizer application, the duration of the growing season increased. The most late-ripening varieties were Dobroe and Zaozerye. Varieties Saur, Dobroe and Khaykar provided almost the same level of productivity against the background of the main application of N60P60K60 and N90P60K60, no significant increase of grain yield (LSD05 – 0.21 t/ha) from increasing the dose of nitrogen was identified. Yields in the Saur variety were 4.74 and 4.69 t/ha, in Dobroe variety – 5.02 and 5.03 t/ha, in Khaykar variety – 5.34 and 5.36 t/ha, respectively. Variety Rovnya (St) in grain yield was not inferior to all tested varieties only against an unfertilized background. The efficiency of mineral fertilizers on Zaozerye and Saur varieties was higher when applied at a dose of N60P60K60. The maximum yield of 5.47 t/ha was formed by plants of Zaozerye variety, the increase in relation to the variant without the use of fertilizers was 0.66 t/ha, or 13.7 %. The highest payback of mineral fertilizers by yield increase was revealed in two versions of the experiment – when cultivating the Dobroe and Khaykar triticale varieties against the background of the main fertilizer application at a dose of N60P60K60 and amounted to 5.6 and 5.7 t/ha, respectively.
UDC: 615.9:582.282:636.5
Authors: Ramziya M. Potekhina; Lilia E. Matrosova; Evgeniya Yu. Tarasova; Eduard I. Semenov ;
Fusarium fungi are widely distributed in the environment, found in soil and plants. Fusarium proliferatum, a fungal fungus of the genus Fusarium, often provokes mycoses in animals and birds. The article describes the case of bird damage with the toxigenic isolate Fusarium proliferatum, which occurred at a private farm in the Republic of Tatarstan. The purpose of the research is to elucidate the causes of damage to the skin of the legs and weight loss of birds at the age of 6 months. The object of the study was samples of feed and pathological material from sick and dead birds. Mycological studies of feeds included determination of the total number of fungi, identification and toxicity and toxigenicity test of isolated isolates. Microscopic fungi were isolated by serial dilutions with further plating on agar media. Differentiation and determination of generic and species affiliation was carried out according to the identifiers of microscopic fungi. The toxicity of fungal isolates was determined by the accelerated method using protozoa, as well as by staging a biological test on white mice and a skin test method on a rabbit. Mycological examination of pathological material from dead birds revealed fungi of the genus Fusarium, Penicillium and Candida. Fusarium proliferatum showed toxicity on biological objects (protozoa, white mice) from the isolated isolates. During the first minutes, death of more than 90 % of protozoa was recorded. With intraperitoneal injection of a suspension of Fusarium proliferatum, white mice died within 12 hours. Cutaneous application of the suspension of Fusarium proliferatum was accompanied by skin redness of rabbits. The feed was investigated as a factor for introducing the pathogen. Microscopic fungi of the genus Mucor, Penicillium, Fusarium and Rhizopus were isolated from the feed of the poultry farm, in which damage to the skin and death of birds were recorded. Test feed and isolated Fusarium proliferatum micromycete showed toxicity. Based on the results of the studies, recommendations for preventive and therapeutic measures were given to the poltry farm.
UDC: 619:615.9:661.183.2
Authors: Evgeniya Yu. Tarasova; Eduard I. Semenov; Almaz R. Valiev; Lilia E. Matrosova;
T-2 toxin has the strongest toxic effect and belongs to the secondary metabolites of the globally widespread fungi of the genus Fusarium – cereal contaminants that can affect food at any stage. T-2 toxin is considered as one of the main immunosuppressive factors in animal feed, which in turn predisposes to the development of infectious diseases, leads to a decrease in productivity, which entails significant economic losses. At the same time, it is very difficult to prevent mycotoxicosis in the farm, since mycotoxins are resistant to thermal, mechanical and chemical treatments. Therefore, the search for new effective and, most importantly, available means for the treatment and prevention of mycotoxicosis is highly relevant. The staff of the mycotoxin laboratory of the Federal Center for Toxicological, Radiation and Biological Safety has extensive experience working with adsorbents of mycotoxins of various nature. In this article, we studied the adsorption capacity in vitro of natural materials of various structures in relation to T-2 toxin in comparison with commercial preparations. To determine the adsorption capacity, 50 μl of T-2 toxin in methanol with a concentration of 1 μg / μl and the studied sorbents (bentonite of Biklyansky and Tarn-Varsky deposits, zeolite Maynsky, halloysite, Clinofid, Toxfin, Toksipol) were added to test tubes containing 5 ml of water – salt solution in an amount of 50 mg, the test tube without the addition of a sorbent served as a control. Next, the exposure was carried out with constant shaking for 30 minutes, at pH 7.0 and 2.0 (modeling pH in the stomach), at 37 ° C, then the solution was filtered, the toxin was re-extracted from the filtrate into chloroform three times with 20 ml each, chloroform extracts were combined and evaporated dry on a rotary evaporator. To determine desorption, 5 ml of a solution were added to sediments containing the complex (T-2 toxin + sorbent), in which an alkaline medium pH = 8.0 was created (modeling pH in the intestine). Qualitative and quantitative determination of residual amounts of T-2 toxin in the dry residue was performed by thin- layer chromatography with bioautographic completion. During the experiment, we showed for the first time that halloysite nanotubes have pronounced sorption properties against T-2 toxin and are promising for further study in in vivo experiments as a potential means of preventing and treating mycotoxicosis.
UDC: 636.082
Authors: Svetlana V. Titova;
The aim of the research was to study the influence of genetic factors (genotype, line of the stud bull, productivity of female ancestors) on longevity and lifelong productivity of cows of black-and-white breed. Retrospective data analysis of breeding records for retired cows at ZAO BF “Semyonovsky” in the Republic of Mari El was carried out. A reliable effect of the genotype and linear belonging of bull-fathers on productive longevity and lifelong milk yield of daughters was established. The descendants of purebred bulls of black-and-white breed for 6.09 lactations milked 33437 kg of milk, which is 2.56 lactations and 11510 kg of milk more than peers. The daughters of the A. Adem line bulls were characterized by the longest period of use (6.83 lactations) and high lifelong milk yield (43037 kg). For a long period, 5.95 lactations with a lifetime milk yield of 36075 kg of milk, the descendants of bulls, from mothers with low productivity, were exploited. As the longevity of the bulls’ mothers increased, the period of productive use and the lifetime milk yield of the bulls’ daughters increased. Depending on the quality of cow-mothers, a pattern of changes in the indicators of productive longevity in daughters was revealed. Daughters from the worst cows-mothers were less active in milking, but had high productive longevity (4.0 lactations). With an increase in the productivity of mothers, daughters increased the intensity of milking and milk yield for the 1st lactation, but the period of operation was reduced. There was a positive correlation “mother-daughter” (r = +0.18) in milk yield for the 1st lactation, and negative correlation – milk yield for the 1 lactation of mothers with productive longevity (r = –0.24) and lifetime milk yield (r = –0.21) of daughters. The proportion of mothers’ influence on the analyzed signs was low.
UDC: 633.2.033.2
Authors: Valentina А. Fedorova; Nina A. Naumova; Yuliya P. Tarasenkova; Dmitriy P. Polyakov;
Introduction. Oats is a widespread forage crop. In areas with a complex nature of climatic conditions, not only increasing the yield of the crop, but also the issues of its stability is of particular importance. Therefore, the creation of highly adaptive varieties that can form high and stable yields of high-quality oat grain in different growing conditions is relevant and timely. The purpose of our research is to evaluate promising oat varieties in terms of yield and adaptability parameters on the basis of the results of their agroecological testing on arid agricultural lands of the Northern Caspian region. Materials and methods of research. The objects of the study were 7 varieties of oats of domestic selection (Kuryanin, Bulanyi, Lev, Arman, Urman, Pokrov, Assol), as a standard – the zoned variety Konkur. Varieties were tested in 2016–2018. Observations and accountings were carried out in accordance with generally accepted methods. Agricultural technology is generally accepted for the conditions of the North of the Astrakhan region. The results of the study, discussion. According to the results of three-year studies, the highest grain yield showed varieties Lev, Assol and Urman – 0.94 t/ha, 1.21 t/ha and 1.33 t/ha, respectively. Varieties of Urman, Assol, and Arman were distinguished by a complex of economically valuable traits, whose grains varied from 10 to 15 pieces, and the grain weight per panicle was 0.52 g, 0.32 g, and 0.31 g, respectively. Urman and Assol varieties had the highest mass index of 1000 seeds – 33.6 g. and 33.1 g, respectively. Conclusion. The highest level of adaptive capacity was shown by varieties Lev, Urman and Assol with an adaptability coefficient above one (1.1 to 1.4).
UDC: 332.1
Authors: Tatyana A. Ignasheva;
Introduction. The article is devoted to the formation of identification technique of statistical dependences among the existing types of industrial activity in the Republic of Mari El from production and financial indicators of their functioning according to the allocated classes in terms of production volumes and profitability level. The application of induction method allows revealing concrete impact of each factor on the activities of industrial enterprises, to characterize the differences in the level of production and financial state between the types of industrial activity. Purpose: modeling of production and financial indicators in classification groups of industrial enterprises of the Mari El Republic. Materials and methods. The research was carried out on the basis of Maristat statistical data using regression analysis method, allowing us to obtain inductive statistical dependences of the region industrial sphere functioning in the context of classification groups of their production volumes. Results, discussion. As a result of modeling of a balanced financial result in the classification groups factors were identified the variation of which has a direct impact on the change of the effective trait. So, in the first cluster change of balanced financial result is influenced by change of producer price index and profitability of the sold goods; in the second cluster – change of profitability of the sold goods, return on assets and production index; in the third classification group – a change in return on assets and producer price index. The least profitable sectors include the sectors of the third cluster: extractive industries; textile and clothing production; manufacture of leather, leather products and footwear; chemical production; manufacture of rubber and plastic products; production of other non-metallic mineral products; production of vehicles and equipment; other production. Conclusion. The analysis of the constructed models allows to reveal the most essential factors determining the effectiveness of industrial enterprises in the region, which allows a targeted impact on these indicators in the formation of production and financial programs for the prospective development of industrial activities of the Mari El Republic in order to increase the volume and quality of manufactured products.
UDC: 338:631
Authors: Matvey S. Oborin;
Introduction. Agriculture is one of the priority sectors contributing to the strategic development of the state. In the regions of the country it is difficult to ensure sustainable growth due to the accumulated structural, economic and social problems. Areas with agricultural specialization are unattractive for young people seeking to move to large cities and towns, the introduction of innovations and technologies that optimize production processes is carried out slowly, requires significant capital investments. Productivity and cost level in the industry depends on the degree of wear and tear of the main equipment and agricultural machines. In this regard, the analysis and assessment of the main socio-economic problems hindering the development of agriculture in the regions of the country seems to be an important area of research. Objective. To identify the main socioeconomic problems of agricultural development and determine the directions for their solutions in the regions of the country. Materials and methods. Statistical analysis, system and situational approaches to assessing industry performance in the constituent entities of the Russian Federation. The results of the study, discussion. The article studied the works of different authors, their views on the problems of agriculture, identified the main problems of socio-economic nature, and analyzed the following indicators: dynamics of the rural population, number of villages, coefficient of equipment renewal, number of new equipment, dynamics of investment in agriculture. The information and analytical base was the data of official statistics. According to the results of the work, the main problems of the industry were identified and measures to solve them were proposed. Conclusion. The problems of agricultural development in many regions of the country are associated with the difficult socio-economic situation of the territories with agricultural specialization, therefore, a set of measures aimed at improving the quality of life and technical modernization of industrial enterprises is necessary.
UDC: 316.44
Authors: Olga F. Pyatova; Tatyana V. Shumilina;
The social the labor sphere plays an important role in the state and development of the regional economy. According to the indicators of its development, one can to some extent assess the standard and quality of living of the population. Insufficient accounting of the processes occurring in it leads to the emergence of new problems and contradictions in this area. The object of the research is the social and labor sphere of the Samara region. The subject of the study is the indicators characterizing the state and development trends of the object of study. The article is made on an actual topic, since the state of the social and labor sphere is one of the main indicators of the effectiveness of the current social policy not only in a particular region, but also in the country as a whole. Purpose: study of the social and labor sphere of the Samara region and determination of its position in the Volga Federal District. Materials and methods: theoretical analysis method, comparison method, methods of economic and statistical analysis. Results of research, discussion. For the period from 2013 to 2017, the average income per capita in the Samara region increased by 123 rubles. The ratio of funds decreased to a level of 12.2 times, which indicates a high degree of stratification of society. Over the period under review, the total birth rate decreased in the region. In terms of the growth rate of the composite indicator for the study period, it is in 6th place among the regions of the Volga Federal District. This characterizes the negative trends in the social and labor sphere of the Samara region. Conclusion. Constant collection and analysis of information on the processes occurring in the social and labor sphere of the region will allow identifying bottlenecks and promptly making effective management decisions to increase the effectiveness of socio-economic programs operating in the region.
UDC: 338.28
Authors: Rodion S. Rogulin; Valery I. Maksimenko; Marina O. Smoley; Eva S. Pugacheva; Vladislav V. Matveev; Darya V. Zlobina;
The purpose of this article is to derive an economic and mathematical model that allows, on the one hand, to determine the area of production based on the cost of production costs, on the other hand, to determine the volume of production and the volume of transported goods from the point of production (warehouse) to the consumer (customer). The difficulty is to comprehensively take into account all the problems described above when solving such a problem. If we solve this problem sequentially, that is, isolate the subtasks and solve them separately, and at the end go through all the subtasks to get a solution, then from a strictly mathematical proof it follows that the solution may not be optimal, which contradicts the purpose of this article. Methods and algorithms for solving such a nontrivial combinatorial problem were reviewed. A complex mathematical formulation of the problem (mathematical model) in the framework of linear integer programming is presented as scientific novelty. Since all algorithms for finding the optimal solution are known and well developed, when solving problems of any linear programming, this fact significantly simplifies the speed of finding the optimal solution. This article proposes a comprehensive solution to three linear programming problems: transport problem, maximum flow problem, center allocation problem. The proposed model can be used at any enterprise where it is necessary to find the optimal combinatorial option for delivery from a warehouse in order to minimize the cost of transporting finished products. The task we are solving first appeared at a timber processing cal data came was an organization that has a full production cycle, including extraction, processing of raw materials, production in the broadest sense of the word, transportation capabilities, additional capital to expand the warehouse base.The result of the article is, firstly, the derivation of a mathematical complex model, and secondly, the implementation of the model and algorithm for finding the optimal solution in a high-level programming language, which allows the reader to use hardware to solve similar problems in production.
Отзыв из печати статьи
Retracted article: Gumarova F.Z. Investitsionnaya politika regiona kak instrument povysheniya konkurentosposobnosti APK Respubliki Marii El [Investment policy of the region as a tool for improving competitiveness of agrarian and industrial complex of the Republic of Mari El]. Vestnik of the Mari State University. Chapter “Agriculture. Economics”. 2015, no. 3, pp. 5359 (In Russ). This article by Faina Z. Gumarova (E-mail: has been retracted (i. e. withdrawn from the press) by the editor with permission of the author and publisher. The reason for the article retraction is duplicate publication: the author has published the same article under the title “Investment policy of the region as a tool for improving competitiveness of agrarian and industrial complex of the Republic of Mari El” in the journal “Fundamental'nye issledovaniya” [“Fundamental research”] (2014, no. 11–12, pp. 2677–2680). The Editorial Board apologizes for any inconvenience this retraction may have caused.