Don state agrarian University
Author list of organization
List of articles written by the authors of the organization
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FERTILIZING OF A WINTER WHEAT SOWN AFTER WINTER WHEAT AND COMMON SAINFOIN ON ORDINARY BLACK SOIL
06.00.00 Agricultural sciences
DescriptionDistinctions of soil under a winter wheat after a winter wheat and common sainfoin in provision of moisture and feed elements are revealed. Influence of autumn application of complete fertilizer and spring nitric dosage compensations on productivity and quality of a winter wheat are established; dependence of fertilizers’ effect from nitrate nitrogen contents in the soil is shown. Optimum dozes combinations on both predecessors are found
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LOWER DON SOILS STABILITY TO HEAVY METALS CONTAMINATION
DescriptionThe mathematical model of soil stability to heavy metals contamination is proposed. The Lower Don soils contamination with Cu, Pb and Zn was calculated
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FACTOR ENVIRONMENT OF THE DEVELOPMENT OF THE INDUSTRIES SECTOR DEPARTMENTS
DescriptionIndustrial policy is a set of organizational and economic regulators to improve the technological, organizational and institutional infrastructure level, allowing stimulating industrial activity. There are economic instruments that focus on creating a favorable economic environment for the industry; information and communication tools based on the provision of information and advice to industry on the basis of regular monitoring of production, market–tactical, legal and regulatory processes; institutionally–in–law measures that are aimed at creating an effective and adequate regulatory framework and effective legal protection. We have highlighted a group of preselected based on the analysis and systematization of scientific sources of positive («catalyst») and negative (respectively – «inhibitors») factors, which are structured by us on several subgroups: the factors nature of globalization; macro factors; organizational and economic factors; territorial and sectoral factors (factors of specialization); social factors; technical and technological factors. We have attempted to outline the most important elements of the environment factor, the totality of which determines the level and nature of the development of the industrial sector of the economy, as well as the specifics of the required content of the relevant industrial policies. Consideration of the above factors has allowed us to identify some of the contradictions in the process of industrial development. Their understanding of the formulation and in the context of the resolution of an opportunistic nature of processes of formation and development of industrial potential, industrial production may be the conceptual basis for the development of proposals for improving the incentives for industrial growth mechanisms, including the use of information tools
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THE FORMATION AND QUALITY OF MEAT OF CATTLE BREEDING AND POULTRY FARMING
06.00.00 Agricultural sciences
DescriptionIn order to ensure import substitution and threshold values of meat production, it is necessary to stabilize the livestock of animals and introduce intensive technologies. In conditions of arid steppes, the animals of Kalmyk, Hereford and Aberdeen-Angus breeds are best suited to stall-pasture technology. Before weaning from mothers at 7-8 months of age, their offspring is grown without additional feeding, just mothers’ milk. Therefore, the growth rate of suckling young animals rarely exceeds 850 grams of daily growth, while the live weight reaches 400-450 kilograms at the age of 18 months, with some advantage in favor of the young generation of Hereford breed. Using the intensive 9- months growing at the fattening complex with feeding from the self-feeders ensured the average daily gain in the Kalmyk bull-calves at the level of 1398 grams, and for the Aberdeen-Angus and Hereford breeds the growth is 1533 grams. The highest growth energy, live weight (661 kilograms), was with Hereford bulls. From bulls of the native Kalmyk breed with intensive technology of growing, a heavy body weight increase of 331 kilograms at 18 months of age was obtained. All tested samples of meat according to microbiological indicators comply with the requirements of the Technical Regulations
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Description
Industrial region passport is a comprehensive information tool for forming the sustainable consistent conception about the industrial economic sector of administrative territorial unit for third-party users. This content is being formed by taking into account following elements: maximum completeness of the provided information, minimization of the facts distortion and empirical data; simplicity and clarity of the data provided in an accessible form with informative and illustrative material; classifier by potential users’ interests’ availability. In the article, exemplary structure of the industrial passport according to the developed requirements is proposed. In addition, the formation of a working group in the structure of economy sector government bodies is proposed; its tasks include organization and carrying out the relevant works. The article describes a proposed phased-gradualist procedure for creating the industrial passport of the area or district. The developed industrial passport can be used: in the investors attraction activities to the regions with an industrial orientation of the economy; within industrial exhibitions, convents and conferences conducting; as a tool for operational diagnosing a certain industrial potential; as a tool for information accumulating for comparative analysis of the industrial sector functioning in the territorial and temporal dimension; among with other complex tools for the area investment attractiveness increase; as a reasoning element for project platforms necessary for the cluster forms of industrial production organization
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Description
The aim of the article has been the study of deflection laws in tractor oversize low-pressure tires, intended for class 5 tractor propulsion. The research method was experimental. The "tire tester" and specially designed devices for determining the deflections of the inner and outer tube relative to the rim in the circumferential, radial and collateral directions have been used in it. A number of factors determine outcome indices of the wheel with pneumatic tyre. Among them the ability of the tire to deform so that at low - hysteresis losses in the rubber-cord casing and admissible stresses in it, based on resource, the largest area of contact with the supporting base has been created. This circumstance is of particular importance in the development of tractor tires of low pressure, deflection characteristics of which are poorly studied at present. Analysis of experimental studies showed the necessity of the feasibility of creating the tire with the cord orientation in its casing so that in the zone of perception of the vertical and longitudinal forces the cord threads would work in a mode close to the extension, but in the area of contact it would work in bending. These requirements will best meet the tire in which the cord threads are parallelly located in adjacent layers and directed at a predetermined angle in the direction of effect of the axial forces on the wheel in oncoming fibers
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Description
The article provides a convincing argument for the preference of wool and fur products over artificial and synthetic textile fibers. It is noted that artificial fibers and synthetics have negative ionization, while natural wool has positive ionization. It is emphasized that negative ionization is far from harmless to humans. The analysis of the state of sheep breeding in the Russian Federation is given and this industry in the Rostov region is characterized against this background. The data on the number and productivity of sheep of the main age and sex groups, the production of young animals per one hundred ewes are presented. The characteristic of tribal resources of the country and region is given. The breeding base of the industry in the Russian Federation is represented by 205 breeding organizations, including 3 breeding and genetic centers, 44 breeding plants, 145 breeding reproducers and 13 gene pool farms, which contain 1389.8 thousand sheep (39.0 % of their total number in agricultural organizations and 6.6 % of the sheep population in farms of all categories), including 904.7 thousand Queens (35.0 and 6.2%, respectively). The breeding base of the Rostov region has eleven farms, of which 6 breeding plants for such breeds as the Soviet Merino and salskaya and 5 breeding reproducers. In addition to these breed resources, there are breeding reproducers for the qigai and edilbaev breeds in the region. Total number of breeding sheep in the region is almost 44 thousand. The article indicates main problems in the development of the industry and ways and means to solve them
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WOOL PRODUCTIVITY OF MERINO SHEEP OF IMPROVED GENOTYPES
06.00.00 Agricultural sciences
DescriptionThe article deals with the issue of improving the profitability of sheep breeding by using improved mutant genotypes in the breeding system. The results of studies of the main indicators of economic-useful traits are given, the dynamics of growth, level and quality of wool productivity of sheep of improved genotypes obtained on the basis of such breeds as Soviet merino and Stavropolskaya, as well as firstgeneration daughters cultivated in themselves are estimated. It was found that at birth, the live weight in the groups of the 3 group (the breeding of half-blooded hybrids "in oneself") was higher than that of the females from the 1 and 2 groups, respectively, by 0.50 kg, or 13.1%, and by 0.20 kg or 5.2% (P> 0.95). At a more senior age, the young, having a large live mass at birth, retained its rank position. The highest indicator of the cutting of physical wool was observed in animals of the 2 group, obtained as a result of the use of sheepproducers of Stavropolskaya breed on sheep of the Soviet merino. The parameters of the 1 and 3 group were lower by 0.6 kg - 12.3% and 0.17 kg - 3.5% (P> 0.95), respectively. The conclusion is made that the use of sheep-producers of the Stavropolskaya breed on the uterus of the Soviet merinos breed had a positive effect on the wool productivity and the live weight of the hybrid offspring. Further breeding of half-blooded hybrids “in oneself” showed the possibility of reproducing improved genotypes without losing the acquired qualities
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EKOBENTOKORM - NATURAL SORBENTS
06.00.00 Agricultural sciences
DescriptionPoultry farming is characterized by a relatively low cost of production, so it is more cost-effective compared with other sectors of animal husbandry. However, the feed of plant and animal origin used in the poultry industry does not always correspond to the requirements of biological safety and are subject to damage by fungi producing mycotoxins, causing extensive economic damage. Therefore, to improve the performance of the cultivation of chickens broilers was used natural sorbent - ekobentokorm (from the local cheap raw materials - bentonite clay), which is not only a source of macro - and microelements, but also with adsorptive activity in respect to mycotoxins, endotoxins, salts of heavy metals and pathogenic microflora, improves digestion and metabolism
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ECOLOGICAL ASPECTS OF STORAGE OF A HOG MANURE
06.00.00 Agricultural sciences
DescriptionThe article contains the review of the basic standards providing ecologically safe recycling of a manure at modern pig-breeding complexes with a Capacity of 12 000 and 50 000 heads of a finishers a year. The capacity of storehouses for liquid fraction is defined