bluuebunny/crossref_metadata_2025 huggingface dataset:
Personnel training as a factor in the formation of the export potential of the agro-industrial complex of the region
Authors: Dalisova N A , Grishina I I
Published: August 2019

The export potential of a region can be characterized as the possibility of producing the necessary quantity of goods for the purpose of export sales, corresponding in their quality and competitiveness to the demands of an external market relative to a region. But potential is not only and not just the amount of resources, but also the possibility of developing the system in a given direction. The agro-industrial complex today plays a particularly important social role, not only solving the issues of food supply of the Krasnoyarsk Territory, but also providing basic employment and incomes of the population of agricultural areas and maintaining the system of settlement of the region.
Necrotic enteritis of birds
Authors: Laishevtsev A I , Kapustin A V , Yakimova E A , Danilyuk A V , Gulyukin A M , Belimenko V V
Published: August 2019

Poultry clostridia are a serious problem for the domestic poultry industry, which is stated in a number of works by foreign and Russian scientists. In modern conditions, the epizootic situation of clostridia is becoming increasingly tense - the number of outbreaks of necrotic enteritis caused by clostridia increases significantly in a number of poultry farms in Russia, but knowledge of clostridium poultry infection is rather limited. This phenomenon has a tendency to aggravation also due to the fact that many enterprises according to the order of the Government of the Russian Federation No 2045-p of September 25, 2017 “On the strategy for preventing the spread of antimicrobial resistance in the Russian Federation for the period up to 2030” are already preparing to reduce use of antibiotics administered through feed and water. In this case, the producers of the poultry industry, striving to solve one social problem, receive a number of new production and economic problems that require fundamental scientific and applied research to solve them. The solution to this issue may be an alternative approach to the control of poultry clostridia, based on vaccine prevention, the issues of which are currently not studied. Additionally, it is worth noting that the group of poultry diseases caused by microorganisms of the Clostridiaceae family (clostridium) has not only epizootic significance, but also epidemiological one, since it is dangerous for people due to the toxic infection through processed products. In view of the above, the relevance of scientific research on the topic of clostridia of agricultural poultry species is considered obvious.
The cultivation efficiency of new hybrids of spring rape in the conditions of the Krasnoyarsk Region
Authors: Khalipsky A N , Oleynikova E N , Pyzhikova N I , Grishina I I
Published: August 2019

The article deals with the effectiveness of the cultivation of new hybrids of spring rape by Rapool company selection in the conditions of the Krasnoyarsk forest-steppe. In modern agriculture the role of different kinds is increasing, the attention is paid to such indicators as a high level of adaptability, resistance to diseases, the stability of oilseed production, and the improvement in the fatty-acid composition of marketable seeds. Six new spring rape hybrids of the Rapool company selection were studied, the biological and actual crop yields were assessed, and the effects of crop structure elements on yields were determined. The assessment of the biological crop yield of the main alimony of the crop structure shows that it varies by hybrids and varies greatly from 8.8 t / ha for the Currie KL hybrid to 13.8 tons for the Miracle hybrid. The correlation analysis of the obtained data showed a significantly high correlation of yield with a mass of 1000 grains (correlation coefficient +0.86) and a high negative correlation of yield with the number of seeds in the pod and the number of fruits per plant (-0.89). The highest seed yield of 6.25 t / ha in 2018 formed a Cultus hybrid. A high economic effect was shown by the applied technology of complex protection of spring rape: the increase in production profitability of the Cultus KL hybrid was 31%, and that of the Curry KL - 14% compared with the control variant without the use of protective equipment and growth-promoting products.
Economic mechanisms for improving the efficiency of the territorial distribution of production points and temporary storage facilities
Authors: Malafeyev O A , Zenovich O S , Zaitseva I V , Kriulina E N , Oganyan L R
Published: August 2019

This article discusses the algorithms for finding the optimal solution of problems related to the location of temporary storage of goods, warehouses, firms for processing raw materials and shops selling the final product in the transport network. An algorithm is also proposed for finding a compromise solution to the problem of maximizing profits for each agent.
Training of specialists for implementation of the agriculture digitization programme
Authors: Titovskii S N , Titovskaya T S , Titovskaya N V
Published: August 2019

The paper discusses the prospects of the economy and agriculture digitalization, the problems of training qualified IT-specialists in the field of computer technology for the implementation of this task. Also, briefly discussed the main aspects of the training of such specialists, as well as the technology of their training, which forms an interest in the engineering profession.
Key factors in the development of the poultry industry in the Russian Federation
Authors: Kuznetsova A R , Kovshov V A , Gorbunov D V , Zagirova Z R
Published: August 2019

Poultry farming is actively developed in most countries of the world, as it is the basis for the livelihood of many people regardless of income level. It is a rapidly growing, low-cost industry that does not require much labor. Over the period from 1990 to 2017, the total number of birds in the Russian Federation decreased by 15%. At the same time, the laying capacity of laying hens in large-scale formations increased by almost 32%. If in the 90 years of the 20th century poultry production in Russia began to decline due to the high growth of imports from abroad, from 2000 the market of chicken and egg meat began to grow. In the course of the study, we found that the disparity of prices for energy resources and the cost of agricultural products, and the reduction in the number of able-bodied rural population, are the main deterrents for the development of the poultry industry. The main goal of the development of the poultry industry in the Russian Federation is the creation of an efficient, competitive and optimal in its structure poultry products and raw materials for the processing industry, which will increase the level of self-sufficiency of the main types of poultry products and raw materials, as well as develop exports outside the country. Achieving this goal provides for the development of the poultry industry on an innovative basis based on the preservation of reproduction and improvement of land and other natural resources used in agro-industrial production, increasing the competitiveness of poultry products and raw materials produced.
Crowdfunding as the way of projects financing in agribusiness
Authors: Filimonova N G , Ozerova M G , Ermakova I N , Miheeva N B
Published: August 2019

Entrepreneurs in the sphere of agriculture often meet difficulty of receiving financial resources from traditional sources for financing of innovative and investment projects. The article considers use of crowd funding as alternative way of funds raising for projects connected with agriculture and rural areas development. Authors substantiated need of the factors accounting reflecting the social and economic level of regions development in which territory implementation of the project is provided. On the basis of the projects research presented on two the most popular Russian crowdfunding platforms it was found out that such factors as the income amount of the population and availability of the information and communication net Internet in the region in which it is planned to implement the project have the greatest impact on success of agricultural projects. Besides, the research established that such factors as the index of agricultural products manufacture and investment into fixed capital per capita in the region of the project implementation have no significant effect on the success of funds raising.
The prospect of the development of the poultry industry
Authors: Smirnov A A
Published: August 2019

Over the past five years, great changes have been made in the development of poultry farming in the Republic of Mari El in primarily meat direction. In many district municipalities of the North-Eastern part of the Republic, modern complexes for broiler poultry cultivation with the use of modern, intensive technology have been built, which greatly facilitates the work of workers. All this contributes to the increase in the gross production of poultry meat. This industry is characterized by a rapid rate of reproduction of livestock, high productivity, lowest cost of production compared to other livestock industries. However, there was a question of the production of hatching eggs at the local level, because it is expensive to buy them on the side, the period of their storage is short, and most importantly, from the development of the economy, it is not profitable. There is a question, what methods and means it is possible to solve the arisen problem in our conditions. The scientific article reflects new approaches to attract investment resources for the development of poultry industry using innovative technologies. The proposed scientific recommendations will contribute to the production and significant reduction in the cost of hatching eggs at the first stage and ultimately to the overall reduction in the cost of finished products – poultry meat. The investments made by the calculations shall be repaid within three years. Thus, they will create a new production base that is not inferior to the existing Western analogues in the production and sale of hatching eggs, both in the Republic of Mari El and abroad, which will contribute to cheaper final products and significantly improve the financial condition of the poultry farm.
The use of main methods of entering the agro-industrial enterprise to the foreign market
Authors: Tynchenko V S , Chzhan E A , Kukartsev V V , Fedorova N V , Fedorova A V , Nasyrov I R
Published: August 2019

The article describes the actual topic of entering the agro-industrial enterprise to the foreign market and maintaining sustainable activities in these economic conditions. The modern world market is the cruelest in terms of competition for the buyers’ interest and in order to occupy its own niche, to find and retain its buyers long and hard work is required. The article discusses the current conditions and problems affecting the entry of the enterprise into the world market. In order to achieve this goal, the stages were developed, which include strategies for organizing the foreign economic activity of agrarian enterprises. One of the options is licensed activity, as an opportunity to access foreign markets with minimal risks. Special attention is paid to the difficulties of using a particular strategic plan. The article considers internal production problems arising from organizations as they enter the maritime market. Also, in order to choose an appropriate strategy, it is important to understand whether managers and the enterprise as a whole are ready for increased responsibility and risks. All these aspects are described in the comparison of these strategies, and a detailed description of each of them is given, highlighting the advantages and disadvantages.
Application of fuzzy logic for an enterprise production activity management
Authors: Serov Vladimir V
Published: August 2019

For knowledge representation and solving problems of qualitative nature, an applied calculus of fuzzy predicates of the first order has been developed. This theory and methods were used to create an expert system for scientific research in the field of molecular spectroscopy, as well as for a number of other subject areas. One of these areas is the planning and management of the enterprise production activities. A system of fuzzy predicates was developed to formalize basic knowledge of production and commercial activities related to solving the problems of managing production orders. The applied theoretical methods and practical approaches to solving problems of a qualitative nature are considered in the paper.
Expert system as a means for optimizing cattle diets
Authors: Garaev R M , Kovalevskiy V V , Vologdin S V
Published: August 2019

Existing expert systems for optimizing cattle diets were studied, the ISO 9126 quality model was chosen to formulate requirements and evaluate existing systems. A mathematical model for optimizing animal feed rations was developed based on the linear programming problem, which is to minimize the objective function for the ration cost with the restrictions on the indicators of overall nutritional value. The prototype of the application being developed is based on a functional model developed using the IDEF0 methodology, which defines the main functions of the system: processing user requests and providing the necessary information on animal feed and standards; creation of rations for animals according to set parameters; recalculation of a diet taking into account the changes made by the user; analysis of the diet and providing recommendations for its optimization. Methods for developing user interaction algorithms are described. To create an interface, design methods were chosen - “User-oriented design” and “Human-oriented design”. When implementing the objectives of the current research, the problem of optimizing the diet of animals will be solved.
Geospatial database for digitalization of agriculture of the Krasnoyarsk territory
Authors: Erunova M G , Shpedt A A , Trubnikov Y N , Yakubailik O E
Published: August 2019

The experience of implementation of GIS and web technologies for regional agriculture of the Krasnoyarsk territory is considered. The experimental agricultural enterprise “Minino”, located near the city of Krasnoyarsk, was chosen as a pilot project. For this agricultural enterprise, the comprehensive digital model using geographic information systems, remote sensing and web mapping data processing techniques and software is created. A geospatial database, which contains relevant and archival information about agricultural fields, varieties, crops, soil, particle size distribution, soil-forming rocks, terrain features, has been developed. A series of technological digital maps and cartograms have been created in which information on crop rotations and cultivated crops is concentrated. Archives of available multispectral satellite data of high spatial resolution on the considered territory are analyzed. As a result, a multi-layer electronic map of the agricultural enterprise was created, which contains all available information and can be used for modeling and forecasting crop yields, agricultural planning. The developed methods and software and technological solutions can become a methodological basis for a new generation of information and analytical systems and technologies to support management decisions in the agricultural sector.
Efficiency of barley foliar feeding under conditions of leached chernozem fertility heterogeneity
Authors: Ivchenko V K , Dubrovitsky V A , Sorokina O A , Lugantseva M V , Eremina E V
Published: August 2019

The article presents the results of studies conducted on the effectiveness of barley foliar feeding under field experiment conditions. The studies were carried out in a field stationary experiment in a grain-vapor-tilled crop rotation system with the following rotation: green-manured fallow - spring wheat - barley - maize - spring wheat. The object of the research was leached chernozem. Rotation cropping was sown on two degrees of ground fertilization – without fertilizer and with fertilizer. Urea (carbamide) was added as barley foliar feeding. Spring wheat that was sown on rape plant green-manured fallow served as the forecrop to the barley. Soil fertility heterogeneity was determined by examining barley crops during the tillering period (biomass scanning). Unmanned aerial vehicles manufactured by Krasaeroskan were used for this purpose. The results of NDVI index determination in the field experiment formed the basis for determining the mineral nitrogen fertilizer doses. Such doses were refined by tissue diagnostics. It was established that foliar feeding with mineral nitrogen fertilizers (urea) contributed to an increase in barley productivity.
Modeling of absorption process using neural networks
Authors: Kharitonova O S , Bronskaya V V , Ignashina T V , Al-Muntaser Ameen A , Khairullina L E
Published: August 2019

An artificial neural multi-layer network has been developed for predicting the mass transfer coefficients in the liquid and gas phases for the gas absorption (CO2) from the air using an absorbent - water. For the development of neural network the unobservable parameters of the packed absorber were calculated. The obtained results can be used to model an extensive class of chemical engineering processes with the possibility of formalizing the calculation procedures.
Numerical simulation of supercavitation in the constrained flow
Authors: Yu Radzyuk A , Kulagin V A , Istyagina E B , Pyanykh T A , Kolosov M V
Published: August 2019

Mathematical modeling of the liquids movement, accompanied by the phenomenon of cavitation, is developing intensively, but the super-cavitational flow regime has a number of features compared to the localization of the cavity on the streamlined body. The article presents a general approach to the mathematical modeling of the supercavitational flow, describes the used mathematical model. The geometry selected for modeling, the initial parameters and the physical constants characterizing the process are given. Using ANSYS CFX, the flow around a cone installed in a round tube at different flow velocities was calculated. The analysis of the obtained results was carried out, and directions for further research were outlined.
Monitoring and certification of agricultural land by creating a bank of information resources for the rational use of steppe landscapes of the Western Ciscaucasia
Authors: Melnik Marina S , Podkolzin Oleg A , Yu Perov Alexander , Odintsov Stanislav V
Published: August 2019

The improvement of economic efficiency and reproduction of soil fertility require today a comprehensive study, qualitative characteristics, quantitative and cost assessment of the land. A certain imbalance exists today in the use of land and the preservation of soil fertility. Certification contributes to the rapid development and adoption of management decisions, as well as operational monitoring of agricultural landscapes. The subject of the research is the main integral indicators of soil fertility and degradation processes of agroecological monitoring in the system of land evaluation procedures within the steppe landscapes of the Western Ciscaucasia. The authors have identified the need for a number of measures: to analyze the structure of the lands of administrative districts, which are part of the IV accumulative plain landscape of the Chelbas and Beisug rivers basins with plowed steppes in 2017, to monitor the main integrated indicators of soil fertility of agricultural land steppe landscapes of the Western Ciscaucasia, to substantiate the approval of form “Passport of quality of soils of Krasnodar territory» by legislation.
Test methods for integrated experimental prototypes of wireless charging of implants’ power supply sources and implantable biotelemetric system
Authors: Rabin A V , Petrushevskaya A A
Published: August 2019

This article discusses the well-known inductive wireless power transfer for implantable devices. These devices are intended for use in the area of medicine, pharmacology and human physiology. Implantable small-sized devices are introduced into the body surgically and autonomously monitor and control the functional state of individual organs and systems. However, the currently existing implantable devices must be periodically removed from the body of the object of observation to replace the source of energy, and then reinstall into the body. Developed by the authors wireless charger for transcutaneous energy supply of implantable modules automatically adjusts the power of the electromagnetic field. It gives the possibility to use either non-rechargeable power sources or batteries charged via wireless power transmission. The integration scheme of experimental prototypes of wireless charging device and implantable biotelemetric system is considered. The methodology of three consistent tests of integrated charging device and implantable biotelemetric system is discussed. The tests’ results verified the compliance of the specified parameters with the requirements of the technical specification.
Synthesis of energy-efficient agriculture electric drives control system
Authors: Bukhanov S S , Gryzlov A A , Grigorev M A
Published: August 2019

In this paper the capabilities of the agriculture electric drive with rectangular shape of the phase current were analyzed, the level of pulsations of the electromagnetic torque in synchronous reluctance electric drives was found, the synthesis of the electric drive control system was considered, the characteristics of the electric drive under different control laws were compared. It is found that the use of high-speed current circuits (cutoff frequency = > 200 rad/s) can significantly suppress the level of pulsations of the electromagnetic torque. It is shown that the use of flexible positive current feedback in switching phase currents can be considered as an additional opportunity to improve the performance of the current control circuit, as well as in conjunction with the previous method for suppressing torque pulsations in both static and dynamic modes.
Highly reliable power sources for objects of agriculture and automation of the stages of their adjustment
Authors: Zhuravleva L A , Kornienko M N , Fediakov V V
Published: August 2019

The technique of experimental research of static, dynamic and thermal characteristics of elements of automation systems based on the use of traditional equipment and special algorithms of information processing is developed. The reliability of information determination is increased by the use of the method of synchronous signal detection in determining the frequency characteristics of the studied elements of automation. An experimental study of the input and output signals of the amplifier module for two modes of operation was carried out, which confirmed the prospects for using an adaptive power supply for the output stages of the amplifier module when working with non-stationary loads. The method of setting up two modes of operation of the elements of the control system for agricultural facilities with non-stationary power sources, including the choice of parameters for the elements of the system, the experimental determination of its parameters and the choice of parameters for corrective relationships, has been proposed.
The study of oxide films on the surface of a piston of aluminum alloy after micro-arc oxidation
Authors: Likhanov V A , Skryabin M L
Published: August 2019

One of the promising methods of surface hardening of piston aluminum alloys – micro-arc oxidation-is considered in the paper. This type of coating, formed under the influence of micro discharge in the electrolyte solution, is fundamentally different from the base metal. A qualitative analysis of the piston alloy on the energy dispersion x-ray fluorescence spectrometer was carried out for a more accurate assignment of the oxidation parameters, which allowed the most accurate determination of the chemical composition of the alloy. Micro-arc oxidation of the pistons was carried out at the experimental laboratory facility, which allowed to regulate the total density of the ion current II and the quantitative ratio of cathode and anode currents IK/IA in a wide range, which favorably affected the quality of the oxide layers. The mechanism of formation of crystalline inclusions and high-temperature structures depending on the ion current density in time is also described. The conditions of formation of oxide films on the surface of piston alloys based on the physical-geometric Keller model are described and their characteristic features are revealed. The technique of investigation of microstructures of thin films is considered, its characteristic features are described. The obtained microstructures of piston aluminum alloys after micro-arc oxidation are presented. Mechanisms of formation of oxide layers are considered taking into account the influence of alloying elements of piston aluminum alloys. Microphotographs of individual porous cells obtained with the help of an electronic scanning microscope are also shown and analyzed. The basic properties that should have a piston of aluminum alloys: heat resistance, corrosion resistance and abrasive wear. Methods of their research are described. The complex analysis of the received results is carried out. The conclusion about the prospects of these oxide coatings is made.
Compression testing of soils by utilizing method of constant rate of loading
Authors: Dzhangarov A I , Guzueva E R , Akhmetova H A , Chaplaev H G , Potapova N V
Published: August 2019

The work outlines one of the most frequently encountered methods of soil compression testing - the method of constant rate of loading (CRL). Compression tests, in fact, are laboratory tests to determine the deformation characteristics of soils. There are a large number of methods that differ in the approach to the study of soils, the duration of the test, etc. The most reliable results, which are close to those obtained in practice, are provided by the so-called method of constant rate of loading as was mentioned before. However, it also has its drawbacks - the time that is spent on researching the properties of the soil. It usually takes about two weeks. In order to optimize this method, a software product was created that relies on the developed mathematical apparatus and allows you to significantly speed up the data processing process and build a forecast regarding soil characteristics.
Estimation of extraction efficiency of salidroside from Rhodiola rosea using deep eutectic solvents
Authors: Tsvetov N S , Mryasova K P , Shavarda A L , Nikolaev V G
Published: August 2019

This article is devoted to the new possibilities of extraction of biologically active substances (BAS) from Rhodiola rosea L. This plant contains such BAS as salidroside, rhodiosin, rosavin, rosarin, rosin, which are glycosides of cinnamon alcohol and tyrosol. Pharmacological effects Rhodiola rosea include adaptogenic and stress- protective, cardioprotective, antioxidant effect, stimulating the central nervous system, anti-fatigue, antidepressive, anxiolytic, endocrine activity normalizing and life-span increasing effects. One of the promising methods for extracting biologically active substances is extraction using deep eutectic solvents. The aim of this work is to assess the applicability of three deep eutectic solvents for the extraction of biologically active substances, in particular, salidroside, from Rhodiola rosea. In this work the maceration method is used to obtain extracts and the HPLC method is used for the semi-quantitative analysis of the salidroside content. It has been established that the most suitable extractant for salidroside extraction is a mixture of choline chloride + malonic acid + methanol. Extractants containing choline chloride and urea, in contrast, do not extract salidroside from Rhodiola rosea.
Extraction of cinnamic alcohol from Rhodiola rosea using deep eutectic solvents
Authors: Tsvetov N S , Mryasova K P , Korotkova G V , Asming S V , Nikolaev V G
Published: August 2019

The aim of this study is to assess the possibility of using deep eutectic solvents (DES) for the extraction of components of essential oils and biologically active substances from the rhizomes of Rhodiola rosea. Cinnamic alcohol was obtained obtained in aqueous, methanol, ethanol and DES extracts by maceration. Content of the alcohol in extracts was assessed. For preparation of DES, choline chloride was used as an hydrogen bonds acceptor, and malonic acid and glycerol were used as hydrogen bonds donors. Analysis was performed by gas chromatography-mass spectrometry using a GCMS-QP2010 instrument (SHIMADZU) with NIST 27.147 databases. It has been established that the mixture of choline chloride + glycerin + water extracts more than 2 times more cinnamic alcohol than ethanol, and more than 5 times more than methanol.
Aberdeen Angus cattle breed in Russia: prevention of the genetic defects and evaluation of the risk of their spread by transferring from parents to offspring
Authors: Konovalova E N , Volkova V V , Romanenkova O S
Published: August 2019

The article highlighted the problem of genetic defect of Aberdeen Angus cattle. Previous investigation showed the presence in Russian population of Aberdeen Angus cattle of animals carrying in their genotypes the mutant alleles associated with Arthrogriposis multiplex, Developmental Duplication and Osteopetrosis. In some populations, the frequencies of the animals-genetic defects carriers were sufficiently high. The aim of the study was to evaluate the risk of spread of the mutant alleles causing the genetic disorders by their transfer from parents to offspring under absence of control over the genetic defects in the farm, breeding Aberdeen Angus cattle. The analysis has shown increasing of the frequency of animals-Arthrogriposis multiplex carriers about on 10.3% in the population of heifers comparing with population of their mothers and the raising of the mutant allele frequency in six times in F2 generation.
The effect of extraction of labile organic fractions on surface properties of pyrochars
Authors: Smirnova E V , Giniyatullin K G , Okunev R V , Guseva I A , Gordeeva K A
Published: August 2019

The changes in the properties of pyrochars and the possibility of their use as soil meliorants were evaluated. Pyrochars obtained from linden residues at fixed pyrolysis temperatures of 250°C, 450°C and 650°C and under isothermal conditions in the temperature range from 450°C to 650°C have been studied. Their labile fractions of organic matter extracted with Na4P2O7-NaOH solution and hot water was investigated by UV-VIS spectrometry and after extraction cation exchange capacity of pyrochars was characterized. For the qualitative characteristics of the selected fractions, ratio of the absorption of a colored solution of organic matter at λ = 254 nm to the content of organic carbon was calculated. It was concluded, that the pool of water-soluble and alkaline-soluble organic matter of pyrochars is a mixture of organic compounds of uncertain qualitative composition, whose properties are determined by the pyrolysis temperature. Extraction of this water-soluble and alkaline-soluble organic matter leads to a change in cation exchange capacity of pyrochars.
Universal biotechnological medium for sperm dilution during poultry artificial insemination
Authors: Roiter Ya S , Konopleva A P
Published: August 2019

The aim of the research was to develop a universal biotechnological environment for diluting sperm during artificial insemination of birds. The creation of the medium was carried out in 4 stages. The first stage is the selection of environmental components of their influence on the survival of sperm cells in vitro. During the second one, the combination of components and their effect on sperm of different species of birds was studied. Subsequently, the effect of the complex of combinations of ingredients on the preservation of sperm motility was determined upon dilution of the ejaculates of roosters, turkeys, cesars, drakes, husaks during in vitro storage. Ejaculates of males of the studied species in quality close to the average species value were used. During the experiments, the ratio of chemical components was determined, which ensured the optimal value of the concentration of hydrogen ions when the medium was diluted in distilled water. The permissible pH of the medium has been established; it must be neutral or slightly alkaline. The pH was adjusted by injecting sodium acetate. The created medium is stored in a dry state for up to 2 months at a temperature of + 6–8 ° C in hermetically sealed containers. Sperm diluted with this medium contributes to maintaining the high fertilizing ability of rooster sperm for up to 24 hours, for turkeys and cesaries for 7 hours, for waterfowl for 3-4 hours.
Heavy metal level in the ecosystem components of small rivers in the Amur-Zeya Plain agricultural landscape
Authors: Pakusina A P , Platonova T P , Lobarev S A
Published: August 2019

The article considers the results of the heavy metals determination in the components of ecosystems of small rivers (water, sediments, macrophytes) of the Amur-Zeya Plain agricultural landscape. In the waters of small rivers, a high level of iron, zinc and copper is due to the natural factor. The lead and cadmium level in the waters of small rivers did not exceed the maximum permissible concentration (MPC). The level of heavy metals in bottom silt of small rivers corresponded to background values. Excessive concentrations of cadmium, manganese, and lead are characteristic of aquatic moss and rooting hydrophytes. The results of studying the level of heavy metals in the components of aquatic ecosystems of the Amur-Zeya Plain are the basis for further study of the technogenic load on small rivers of the agricultural landscape.
Formation of hard ticks’ biotopes on urban territories
Authors: Belimenko V V , Khristianovsky P I , Novosad E V , Gulyukin A M
Published: August 2019

On territory of many cities and towns in the Russian Federation, new stable biotopes of hard ticks have been formed up and being occurred constantly. these ticks eat animal and human blood and are agent transmitters of many transmissive tick-born infectious and invasion diseases. They are very stable towards adverse factors of nature environment. The article represents knowledge about risk-oriented monitoring and ixodid tick biotope formation on urban territories. Classification and characteristics of urban territories of contemporary city versus the conditions of ixodid ticks’ biotopes formation and, hence, of focuses of tick diseases are given. For ixodid biotopes eradication in the cities, tick-spread maps should be arranged on the base of geoinformational systems, GIS, and pursue, on their basis, target treatment of greenery with acaricides. GIS can be considered as a research method that might be applied for risk management in retrospective and prognosticating.
Transmission of porcine circovirus genotype type 2 (PCV2) in Russia and genotype association (PCV2d) with porcine dermatitis and nephropathy syndrome (PDNS)
Authors: Raev S A , Yuzhakov A G , Alekseev K P , Kostina L V , Gulyukin M I , Stepanova T V , Zaberezhniy A D , Aliper T I
Published: August 2019

The study of the prevalence of PCV2 genotypes in pig farms of the Russian Federation is presented. It is shown that currently the genotype PCV2d is the most common, which is important in connection with the assumed probability of lack of the immune response to PCV-2d induced by PCV-2a-based vaccines. The main goal of this investigation was to conduct monitoring studies for DNA, immunoglobulins IgG and IgM classes to PCV2 by the polymerase chain reaction (PCR) and enzyme-linked immunosorbent assay (ELISA) assays, respectively, as well as identification of the PCV2 genotype by sequencing of pigs of different ages were carried out at one of the Russian industrial pig farms with PCVAD (Porcine circovirus associated disease) outbreaks that used PCV2a vaccination. The data of this field observation indicates that PCV2d – is a major genotype in Russia. Additionally, it was shown that PCV2d prevalence in the farm correlates with clinical manifestation of PCVAD.
Development of a test system for detecting bovine adenovirus DNA based on polymerase chain reaction
Authors: Shemel’kova G O , Yuzhakov A G , Zaberezhny A D , Shemel’kov E V , Aliper T I
Published: August 2019

The paper presents the results of the development of polymerase chain reaction (PCR) test systems for detecting the DNA of bovine adenovirus. Due the large number of classified types of bovine adenoviruses included in two separate genera of Mastadenovirus and Atadenovirus, a nested PCR variant was chosen when creating a test system using a common external pair of primers and internal primers specific for the Mastadenovirus and Atadenovirus genera. In the study of field samples from calves with a characteristic clinical picture using the developed test system, the circulation of different strains of bovine adenovirus, which are representatives of these genera, was established. Selective studies showed the presence of 1, 3, 6, and 8 subtypes of bovine adenovirus among positive samples.
Changes in some properties of agro-gray soil fertility under the influence of biofertilizer
Authors: Ulyanova O A , Kurachenko N L , Vlasenko O A
Published: August 2019

In the field experiment with the agro-gray soil of the Krasnoyarsk forest-steppe, the improvement of the agro-physical properties was established with the use of organic fertilizers, regardless of their type and application rate. Under the influence of bio-fertilizer and chicken manure introduced into the agro-gray soil, there is a tendency to increase the amount of humus and nitrate nitrogen, mobile phosphorus and the yield of wheat grain. The correlation between the yield of wheat grain and mobile forms of humus is estimated at the average level. Using the method of multiple regression, a model of wheat yield was calculated, according to which it depends on the content of mobile humus substances.
Osteodensimetric indicators of dogs’ mandible during deciduous teeth change period
Authors: Morozova D D , Krasnikov A V , Annikov V V , Krasnikova E S
Published: August 2019

The data of bone mineralization range in dogs during the deciduous teeth change are presented in the article. Densitometry is a progressive and minimally invasive methods using in modern dentistry to determine bone mineral density. Five mongrel dogs at the age of 3 months were x-ray tested during the period of occlusion shifts per every 10 days for 3 months. It is found that a significant increase in bone density is registered in experimental animals during teething. It is established that the relative mineral density varies by 26.1% in the front teeth region, by 24.8% in canines’ region and by 38.6% in the region between the second and third premolars in dogs. The average increase of the lower jaw bone mineral density has averaged about 26% due to permanent occlusion forming processes and skeletal growth in dogs.
The effect of planting date on winter rye and triticale overwinter survival and yield in Eastern Siberia
Authors: Pomortsev A V , Dorofeev N V , Yu Zorina S , Katysheva N B , Sokolova L G
Published: August 2019

A field experiment was conducted at an agro-ecological station (53 ° 33‘58.75 “N and 102 ° 35‘23.90” E) of the Siberian Institute of Plant Physiology and Biochemistry on gray forest medium loam soil. Winter rye (family 6) and winter triticale (No. 430-6002) were sown in 4 terms with a 10-day interval (10, 20, 30 August and 10 September) in three replications. The results of the two-year studies show that the winter crops included in the experiment had a higher (higher than 5 t/ha) and more stable yield between the years with the planting dates held on August 20, 30 and September 10 for rye and August 30 and September 10 for triticale. Earlier sowing time contributed to intensive tillering, strong growth, which led to the plant death and lower yields.
The effect of the ratio of the medium volume and the number of organisms on the results of toxicological experiments
Authors: Stravinskene E S , Subbotin M A , Grigoriev Yu S , Shashkova T L , Sorokina G A
Published: August 2019

The dependence of the sensitivity of test organisms of different systematic groups and trophic levels (Escherichia coli bacteria, Chlorella vulgaris microalgae, Daphnia magna crustaceans, Lemna minor aquatic plants) to copper ions on the ratio of the volume of the medium and the number of test objects was studied. A significant decrease in EC50 indices was revealed with an increase in the volume of the test sample per one organism. The possibility of increasing the sensitivity of rapid bioassays on these organisms using the equipment and methodology developed in the Siberian Federal University is shown.
Factor model of foreign students’ adaptation to the climate and geographic conditions of Volgograd region
Authors: Sevriukova G A , Isoupov I B , Tovmasian L A , German N V , Golovanova M A
Published: August 2019

The article deals with the body adaptation of foreign students from warm countries to the sharply continental climate of the Volgograd region. By adapting to the new climatic and geographical conditions of study and living, there are changes in the physiological function of the life-supporting systems. On the basis of a differentiated approach to the assessment of the adaptive state of functional systems, it is possible to identify groups with “poor adaptation of functional systems”, with “stress of functional systems by adaptation” and with “satisfactory adaptation of functional systems”. The factor structure of adaptation has been determined, including: the hormonal factor, the oxygen transport cascade factor, the vegetative supply factor, the respiratory homeostasis factor, the acid-base and gas composition factor. Imbalance and inadequacy in the activity of life-supporting systems, strengthening the central contour of cardiac activity regulation, changes in peripheral blood, hormonal status are criteria for an unfavorable course of adaptation processes in the body. Functional adaptation of the body of foreign students is influenced by the factors of a new climatic and geographic environment and educational activities features.
The antioxidant properties of fermented milk products enriched with resveratrol and syrups of hawthorn
Authors: Nadirova Sanam , Sinyavskiy Yuriy , Lessova Zhaniha , Nabiyeva Zhanar , Azimova Sanavar
Published: August 2019

The article presents data on the antioxidant properties of a fermented milk product with resveratrol and hawthorn syrup, obtained experimentally by amperometric method. The purpose of this study was to obtain yogurt enriched with encapsulated resveratrol and hawthorn syrup in various proportions. An increase in the antioxidant activity of a fermented milk product with resveratrol and hawthorn syrup, taken in an amount of 15%, has been proven. Based on organoleptic ratings, a 15% level was selected for further study. Optimized yoghurt was compared to controls for texture, consistency, taste, and smell. The results of the study show the possibility of enriching yogurt with encapsulated resveratrol and hawthorn syrup to enhance the functional properties of the finished product.
Influence of the seeding rate on the formation of anatomical features of the monoecious hemp stems of Diana breed
Authors: Dimitriev V , Shashkarov L , Mefodyev G
Published: August 2019

The article considers the research results on the influence of the seeding rate on formation of anatomical features of the monoecious helm stems of the Diana breed. According to the experiment scheme, the seeding rate is from 0.1 to 2.7 million pieces of germinating seeds per hectare. The size of each plot is 10 × 10 m (100 m2). The tier is 3-fold. Nature of the change in the thickness of the bast-fibered layer depending on the seeding rates was studied. The results of the research showed that the thickest bast-fibered layer (530.5-636.4 μm) is formed due to the seeding rates of 1.8–2.7 million pieces / ha. Thus, there is a reason to assume that the increased seed rates allow achieving the best yields indicators of the bast-fibered substances. It is noteworthy that each seeding rate is characterized by a certain amount of elementary fibers in the stems: stems from crops with the seeding rate of 0.1–0.6 million pieces / ha have the smallest number of primary and secondary fibers. The largest cells of primary and secondary fibers are found in the stems from crops with the seeding rate of 0.1–0.6 million pieces / ha, the smallest - due to the seeding rate of 1.8–2.7 million pieces / ha. Consequently, the size of both primary and secondary fibers decreases when the seeding rate is increased. The data of the research conclusively prove that the size of the inner lumen of the elementary fibers decreases both lengthwise and edgewise when the seeding rate is increased. Stems that are grown on the plots with the seeding rate of 1.8 -2.7 million pieces / ha have a thick bast-fibered layer (530.5–636.4 μm) with the largest amount of primary and secondary fibers (6918, 4-8302.6 cm) of a regular multi-faceted shape with a small internal lumen lengthwise and edgewise (2.9–4.2 μm and 2.2–2.7 μm).
Cost-effective reducing the environmental impact of wheat production in Siberia
Authors: Keler V V , Khizhnyak S V
Published: August 2019

The effects of previous crop, fertilizers and pesticides on the wheat yield and the cost efficiency of wheat production in Siberia were studied in two-year field experiment. It was found that the yield mostly depends on the previous crop and pesticides, whereas the fertilizer demonstrated relatively slight effect in the year favourable for wheat growth and no effect in the year unfavourable for wheat growth. Cost-effectiveness analysis showed that the most effective way to reduce the environmental impact of wheat production in Siberia is the use of fallow in crop rotation scheme. Usage of fallow without chemical fertilisers provides higher yield than variants with fertilisers and pesticides where wheat was used as a previous crop. Cost efficiency of variant with fallow was 20.8% what is comparable with cost efficiency of the most cost effective variants (fallow as a as a previous crop + pesticides with cost efficiency of 36.6% and wheat as a previous crop + fertilizers with cost efficiency of 30.4%).
Ecological and economic efficiency assessment of forest-transport systems based on the principles of sustainable territorial development
Authors: Kovalev R N , Enaleeva-Bandura I M , Nikonchuk A V , Chernykh R A
Published: August 2019

In order to solve the urgent problem of the development of forest transport systems efficiently, it is necessary to develop strategic principles for their planning, taking into account the current realities of a market economy and the transition of the world community and Russia to the principles of sustainable development. Formation of transport systems in general and the new road network on the territory of forest lands in particular requires significant financial and material resources and therefore it is important to justify the cost effectiveness of their creation and development, taking into account the principles of sustainable development of the territories and the overall environmental and socio-economic effect of the implementation of state project. The paper substantiates the need to take into account environmental, social and economic factors when planning transport systems on the territory of forestland. The principles for assessing ecological and socio-economic efficiency are proposed. Quantitative efficiency criterion is developed taking into account the principles of consistency. The developed objective function of the optimization problem reflects the profitability of the timber transport system (including costs for all stages of its life cycle) for the entire planned period of interaction with the forest ecosystem, i.e. recoupment of the design, construction and operation of the forestry fund of the country’s regions by achieving the maximum productivity of the forest ecosystem from their coexistence over the entire planning period.