bluuebunny/crossref_metadata_2025_split huggingface dataset:
Current state and development prospects of domestic equipment for sheep and goat breeding
Authors: Kuzmina T N , Kuzmin V N 
Published: April 2021

Abstract
The article presents an analysis of the machinery equipment of Russian sheep and goat breeding. The absence of Russian-made equipment for the main processes, such as keeping, drinking, distributing feed, and milking sheep and goats, has been revealed. The existing domestic projects for the mechanization of processes in sheep breeding exist in the form of prototypes, however, there are no projects in goat breeding. Therefore, proposals have been formulated to solve the problems of the provision of sheep and goat farms with Russian equipment. The essence of these proposals is the need for state support for the equipment development and production. The engineering and manufacture of process equipment for sheep and goat breeding should be based on the experience of effective use of foreign equipment in the conditions of domestic enterprises.
Innovative technologies to increase soil bearing capacity and calculation methods for foundations construction of structures for the production, storage and processing of agricultural products
Authors: Vershinin S V , Petrov M V , Makarova N A 
Published: April 2021

Abstract
The article deals with the issues associated with the need to increase the soil bearing capacity during the laying of the pile foundations in agricultural building construction. Technological and design solutions aimed at reduction in consumption of materials and improving the reliability of foundations are offered. The calculation method of the proposed pile foundation structures based on the bearing capacity for cohesive and non-cohesive soils is also analyzed.
Influence of the radiation intensity of LED light sources of the red-blue spectrum on the yield and energy consumption of microgreens
Authors: Vetchinnikov A A , Filatov D A , Olonina S I , Kazakov A V , Olonin I Yu 
Published: April 2021

Abstract
The significant interest in microgreens all over the world in recent years is associated with the high nutritional value of these products. At the same time, for most types of microgreens, there are conflicting data on the technology of their cultivation, and, in particular, on the minimum required level of illumination. This study aimed to investigate the effect of different levels of light on the growth and development of radishes, cabbage and basil. The experiment was carried out in triplicate and included variants with irradiation of 50, 100 and 200 μmol m−2·s−1. In the course of the research, the influence of the radiation intensity on the height of seedlings, the yield of biomass and the energy efficiency of their production was revealed. The highest yield was obtained in variants using light sources with an intensity of 100 μmol m−2·s−1, while for basil this lighting option was also the most profitable in terms of energy intensity.
Using the biologization elements in potato cultivation technology
Authors: Pityurina I S , Vinogradov D V , Lupova E I , Evsenina M V 
Published: April 2021

Abstract
The article analyzes experimental data on potato cultivation with the use of biologization elements in the conditions of the Ryazan region. were conducted two-year experiments for studying the effect of straw and siderate on the yield and quality of potato tubers of the variety “Red Scarlett”, cultivated on dark gray forest soils. Sideral fertilizer was represented by white mustard, sown to a depth of 4 cm with a norm of 5.5 million germinating seeds per hectare. When studying the “straw+nitrogen” variant, ammonium nitrate was introduced manually. In the case of the siderate using the plants were 2.2–19.6% higher, the number of stems on the bush and the leaf area were larger 4.8–13.3% and 4.8–25.1%, respectively, compared to the control sample. When using white mustard as a fertilizer, the number of weeds was 33.3–43.4 % lower compared to the control variant. Planting straw with nitrogen fertilizer provided an increasing of the mass of tubers in comparison with control samples in both years of research: by 2.9% in 2019 and by 8.1% in 2020. The yield of potato tubers of the variety “Red Scarlett” was increased by 11.4% when planting siderate, and by 10.8% when plowing straw.
Intensification of the reproductive function of cows of the Kazakh white-headed breed by the biotechnological method
Authors: Zhapov Zh N , Muruev A V , Murueva G B 
Published: April 2021

Abstract
This paper discusses the issues of intensification of the reproductive function of cows of the Kazakh white-headed breed in the Republic of Buryatia, where severe natural and climatic conditions are observed by introducing biologically active drugs to animals (drugs “Estrofan” and “E-selenium”). Immunobiological blood test. The indicators of the reproductive function of females were determined.
Opportunities and prospects for the development of complex biocompatible plant protection products based on some natural nitrogen compounds for solving agricultural problems
Authors: Khaptsev Z , Bogdanov A , Kadomtseva M , Smutnev P , Isaicheva L 
Published: April 2021

Abstract
The work summarizes the literature data on the use of pesticides in agriculture, as well as the damage they cause to the environment and human health. The possibilities and prospects for the development of complex biocompatible plant protection products based on some natural nitrogen compounds to solve agricultural problems and reduce damage from the use of pesticides are analyzed.
Generalized scheme of fuzzy control of grain harvester in field conditions
Authors: Dimitrov V , Borisova L 
Published: April 2021

Abstract
The article discusses the issues of modeling the process of managing the combine in the field. A generalized scheme for solving important practical problems of technological adjustment of the working bodies of the units of a combine harvester based on fuzzy expert data on the input factors (external environment) and output parameters (adjustable parameters of the machine) is proposed. The architecture of the knowledge base of the information intelligent system is given, as well as the relationships between the individual structural elements. The main semantic spaces of the considered subject area are highlighted. This is a group of environmental factors, a group of adjustable parameters, a group of quality indicators of the cleaning process, a group of possible violations of the quality of the cleaning process. The characteristic features of the output of solutions during technological adjustment and, accordingly, adjustments of technological adjustments are considered. Models of subject areas are presented.
Study of physical and mechanical properties of feed additives for cattle
Authors: Avakimyants E V , Gordeev V V 
Published: April 2021

Abstract
The article presents a study of the physical and mechanical properties of feed additives for cattle used in the farms of the Leningrad region. The choice of the investigated factors is due to their influence on the mixing process and design parameters of the mixer. When determining the particle size distribution, it was revealed that most of the materials under study have a particle size of d = 0.5-2 mm. The bulk density for most of the additives was 500-800 kg / m3. The moisture content of the main part of the investigated materials did not exceed 10%. The research results will make it possible to establish the influence of individual components on the property of the mixture and substantiate the optimal design and operating parameters of the mixer for feed additives.
Application of modern GIS technologies for inventory of protective forest strips, identification of waterlogged areas
Authors: Barsukova G N , Derevenets D K 
Published: April 2021

Abstract
Earlier there were conducted the studies of the climatic, soil, environmental and economic characteristics of natural landscapes and agricultural land in Krasnodar Territory, for example, Dinskoy district. It is located on the territory of the V-natural landscape. There were shown the results of study of the qualitative state of field-protective forest belts and their influence on the processes of expansion of land area waterlogged arable land using GIS technology as a tool of information-cartographical support of researches. The identification of forest strips in GIS was carried out, their area was determined, the types of forest strips were established, the condition and degree of damage were assessed, the area of beams whose growth is due to the violation of the natural watercourse was determined. There have been identified the areas and sites of necessary repair works and laying of new forest strips, areas and sites of field-protective forest strips that prevent natural water flow and which are planned for cutting down. The capital investments in the laying, restoration and uprooting of damaged and planned forest strips are calculated. The use of GIS technologies in the study makes it possible to increase the accuracy of the results of the assessment and forecast of the development of degradation processes, reduces the cost of research, and ensures an increase in efficiency of land use in agricultural production.
Phisical and chemical properties of exopolysaccharide of the lactic streptococcus
Authors: Fokina N A , Uryadova G T , Karpunina L V , Savina S V , Skorlyakov V M 
Published: April 2021

Abstract
We know that exopolysaccharides of microbial origin are of great practical importance, and have their industrial value because of the biological and physico - chemical characteristics of the producer. We had a goal to study the most important properties of an exopolysaccharide isolated from a bacterial culture of Streptococcus thermophilus. First we got exopolysaccharide. After that we had cultured the bacteria on A. Welman at 38 °C for 48 hours. To do this, 3000 g of culture liquid had been centrifuged for 30 minutes. Next, we removed the biomass sludge, and we evaporated the centrifuge on a rotary evaporator. After that, we precipitated the exopolysaccharide with a double volume of 96% ethyl alcohol. We got a concentrate which we then dissolved in a small amount of distilled water and had centrifuged for 30 minutes. Afterwards my colleges and I precipitated it again. Our further purification of the exopolysaccharide we had to perform using some gel filtration on a column with a Sephadex G-50. It had to be dried on a freeze dryer. Thus, we obtained an exopolysaccharide in the form of a light brown powder, it was odorless, without any foreign impurities and any producer cells. Our further work included following steps: we had to know the molecular weight of the exopolysaccharide. It was possible to make with gel chromatography on a Toyopearl – HW –50F column. We determined the chemical nature of the exopolysaccharide through ion exchange chromatography using a SPS Bio DEA medium with 70 microns. We determined the monosaccharide composition with the help of a thin-layer chromatography on DC-Alufolien Cellulose plates, and the relative viscosity by viscometer. As a result of our research, the exopolysaccharide S. thermophilus were presented by a single neutral fraction, with molecular weight of 20,000 Da, with a small relative viscosity.
Presence of clinically significant endophytic yeasts in agricultural crops: monitoring and ecological safety assessment
Authors: Kachalkin A V , Glushakova A M , Venzhik A S 
Published: April 2021

Abstract
Endophytic yeasts from internal tissues of 54 names of nuts and vegetables from 36 countries were studied. In total, 74 species of yeasts were isolated from analysed agricultural crops. The study revealed high values of occurrence and abundance of clinically significant yeasts Candida parapsilosis and Meyerozyma guilliermondii in some internal tissues that may pose a potential threat to human health, primarily for immunocompromised individuals.
Development of a radioprotective drug based on substances of plant, microbial, zoogenic and inorganic origin
Authors: Vagin K N , Nizamov R N , Ishmukhametov K T , Shakurov M M , Vasilevsky N M 
Published: April 2021

Abstract
Environmental pollution with ecotoxicants makes humanity rethink its attitude to the world around it and accept the concept of the need to protect people and animals living on our planet. This paper presents the results of experimental studies of substances of natural origin for the selection of the most promising ones in order to create a multifunctional means of protecting farm animals in areas of anthropogenic pollution. In vitro experiments on lethally irradiated lymphocytes of the peripheral blood of animals, the radioprotective properties of phytogenic preparations were evaluated, and a three-component radioprotective composition was created. On lethally irradiated laboratory animals, the radioprotective activity of various compositions constructed from microbial biomasses and metabolic products of E. coli “PL-6”, B. bifidum 1 bacterial strains, phyto- and zoo drugs preparations radiomodified at a dose of 4 kGy was tested. From the metabolites of the radiomodified bacterial strain B. bifidum 1 (R6), the phytopreparation “Turmeric” and the biologically active feed additive “Vita-Force M”, the phytozoic microbial preparation FZMP was designed and tested on laboratory animals, which provided protection from radiation death to 80% of lethally irradiated laboratory animals, with 100% death of rats in the irradiation control group.
Ecological bases of the epizootic process of brucellosis and its control in small ruminants
Authors: Arakelyan P K , Dimova A S , Dimov S K , Rudenko A V , Yanchenko T A , Orobets V A 
Published: April 2021

Abstract
The article analyzes the ecological foundations of the epizootic process of brucellosis and its control in small ruminants. Epizootic process of brucellosis in populations of small ruminants with a low level of immunity is characterized by the intensive formation of epizootic strains of brucellosis melitensis with a high level of virulence and is accompanied by a high incidence of animals with acute cases of acute brucellosis human contact. Brucella, parasitizing in animal populations with a high level of immunity are as a rule in the stage of reservation have reduced virulent properties and this circumstance provides along with the stabilization of the epizootic situation a favorable epidemic situation. In other words the epizootic process of brucellosis at large territories in the zones of occurrence of the disease can be controlled due to the leading role of specific prophylaxis provided that immunity against brucellosis is provided for livestock for the longest possible period.
Rational use of natural resources of land resources of the Far East using agrocenoses of grain crops
Authors: Aseeva T A , Zenkina K V , Trifuntova I B 
Published: April 2021

Abstract
The article examines the structure of the cultivated areas of the Khabarovsk Territory, reveals the predominance of soybeans. For the rational use of natural resources in the Far East, the varieties of spring oats Express, Tigrovy, Premier, Marshal, Cardinal, Peredovik have been created, which are distinguished by high productivity - 4.4-6.7 t / ha. It has been established that the yield of spring wheat and spring triticale under the conditions of the Khabarovsk Territory is realized practically equally - 2.6 t/ha. It is noted that the need for heat in the sprouting-tillering phase in spring wheat and spring triticale is opposite, which indicates the need to use both crops in agrocenoses of the Far Eastern region.
Influence of thermal protection of residential buildings in rural settlements on the state of the environment
Authors: Temukuyev T B , Temukuyev B B 
Published: April 2021

Abstract
The state of the environment is most affected by the emission of greenhouse gases, in particular, carbon dioxide, which is formed during the combustion of fossil fuels. The main part of the energy resources that are consumed in rural areas, in addition to technological purposes, is fuel used for heating residential buildings. The article examines the state of thermal protection of residential buildings (individually defined buildings). During their construction in every region of a large country, they adhered to the established traditions, which changed slightly with the advent of new materials. Residential buildings built over a century ago are in operation in Russia. Local materials were mainly used in the construction of the walls. For a long time, state structures were not interested in the state of residential buildings, since there was no need for this due to the lack of a centralized fuel supply to villages. Gasification of rural settlements requires a revision of the attitude towards thermal protection of residential buildings. To solve the problem, state support will be required for the insulation of some of their external enclosing structures.
Biodiversity Conservation of Birds of Prey
Authors: Momot N V , Kolina Yu A , Vasilyeva M A , Camlia I L 
Published: April 2021

Abstract
The article discusses the issues of negative anthropogenic impact on the populations of rare birds of prey in Primorsky Krai and the possibility of reducing this impact on the wild avifauna. Injuries were diagnosed in two Steller’s sea eagles and the causes of the injuries were analyzed. The authors point out that in the context of decreasing biological diversity, the creation of rehabilitation centers for wild animals and birds can improve the indicators of the viability of populations of representatives of wild avifauna.
On technical means of obtaining wood chips, as a way to increase soil fertility
Authors: Fokin S , Eskov D , Medvedeva P , Shportko O , Fomina O 
Published: April 2021

Abstract
The proposed work outlines the ways to search for new technical solutions that increase the efficiency of the process of ejection of chips from disk chippers, by theoretically substantiating the design and technological parameters of the elements involved in the working process of evacuation of chopped wood. The resulting chips can be used as a mulching agent, which is one of the means of increasing soil fertility. Disc chippers are the most widely used for wood chipping. The chips they produce are best suited for mulching. But disk chippers have such disadvantages as the high energy intensity of the work performed for the processing of wood raw materials into chips. Therefore, it is necessary to justify the design and technological parameters of the chipper elements. To achieve the stated goal of the study, we used a modification of the part dynamics method. Within the framework of this method, the stream of chips was broken up into separate spherical elements. The developed computer program made it possible to carry out a two-factor optimization of the parameters that most significantly affect the efficiency of the equipment. It has been established that two-factor three-criteria optimization of equipment parameters makes it possible to find an optimal combination of structural elements of the chip ejection mechanism. Calculations have shown that the optimal size of the gap between the chipping disc blades and the lateral surface of the cylindrical part of the casing is 9 … 11 mm, and the best chip pipe diameter will be 230 … 300 mm. In this case, the speed of chip ejection will be at least 2.0 m/s, and the share of chips ejected from the first revolution of the chipping disk will be at least 80%. Power consumption for the release of chopped wood will not exceed 700 W.
Synthesis of materials of composition CoM2O4 (M=Al, Fe) for purification of aqueous solutions
Authors: Egorova M A , Shabelskaya N P , Arzumanova A V , Yakovenko E A , Semchenko V V 
Published: April 2021

Abstract
The process of formation of nanosized materials with a spinel structure - aluminate and cobalt (II) ferrite - has been studied in this work. The materials obtained were characterized using X-ray phase analysis, electron microscopy, BET and Debye-Scherrer methods. It was found that the synthesized samples have a developed surface and can be used as catalysts for the decomposition of hydrogen peroxide to remove organic pollutants from an aqueous solution. Cobalt (II) ferrite exhibits increased catalytic activity in the studied process; it may be associated with the formation of the Fenton system.
Temperature differentiation of aquatic microflora of a closed water supply system by the example of incubation of microbiological crops at 21 and 37 °C
Authors: Nikiforov-Nikishin D L , Nikiforov-Nikishin A L , Bugaev O G , Kochetkov N I 
Published: April 2021

Abstract
In this paper, the dependence of the temperature conditions of incubation of microbiological water cultures taken directly from the pool of a closed water supply system on the activity and species diversity of the resulting microflora is analyzed. The object of the study was clarias catfish (Clarias gariepinus), which was grown at a temperature of 22-24 °, Ph 6.5-7.5, which corresponds to the optimal requirements for breeding this type of fish. The study was conducted on the basis of the Russian-Norwegian Center for Research in the field of Innovation and Aquaculture of the MSUTM named after K.G. Razumovsky. As a result of the study, a reliable regularity of the activity of aquatic microflora in CFU / ml, as well as generic and species affiliation, was revealed.
The impact of urban highways on roadside trees
Authors: Sheps R A , Shchukina T V , Vorob’eva Yu A , Shashin A V , Ishkov A N 
Published: April 2021

Abstract
The article describes the study of the impact of motor transport on green spaces along urban highways. The paper studies the process of necrosis that occurs on the leaves of trees. A full-scale experiment was conducted to determine the magnitude of damage to the leaves of trees. In conclusion, the most resistant tree species to the effects of pollutants are proposed.
Current state, population structure and population dynamics of rare plants under economic and recreational use of natural-territorial complexes in the Middle Volga basin (Russia)
Authors: Mitroshenkova A E , Ilyina V N , Kazantsev I V , Rogov S A 
Published: April 2021

Abstract
The article summarizes the results of studies on the population structure and population dynamics of rare plants of the steppe and forest-steppe zones of the European part of Russia. Conservation of representatives is mainly ensured by the creation of protected areas and the inclusion in the Red Books. Four groups of species by peculiarities of ontogenetic structure and type of cenopopopulations according to the “delta-omega” criterion were determined. Most species are characterized by a mature type of cenopopopulations with a predominance of generative individuals. Long-term studies allowed us to establish that most of the rare species of the region have maintained their numbers. However, 30 representatives, the number of which has noticeably decreased, need to strengthen the conservation measures. The studies are of interest in the development of conservation measures, identifying the current ecological state of natural-territorial complexes under economic and recreational pressure, determining the categories of rarity of species, justifying the inclusion or exclusion of them from the Red Books.