bluuebunny/crossref_metadata_2025_split huggingface dataset:
Technical and economic aspects of the development of modern rural areas
Authors: Porsev E G , Pokhomchikova E O , Skorobogatova Yu A , Tsarev R Yu , Avetisyan K R 
Published: November 2019

Abstract
The article presents the analysis of social potential and the structure of its rural districts. The quality of life of the population in different countries is studied in terms of expenditures and household consumption. The paper considers the level of the pace of the delivery of accommodation units and improvement of housing stock, which established the growth of indicators in rural districts, which in turn determines the growth of their social potential. The authors theoretically substantiate the need to attract investments and additional resources when addressing the issue of the development of socio-economic potential of a rural territory and its infrastructure. The substantiation of the need for active involvement in the development of the territory of companies and organizations, including the economic management system is determined.
Features of the formation of quality indicators ram edilbay breed in arid conditions
Authors: Gorlov I F , Nikolaev D V , Sherstyuk B A , Slozhenkina M I , Gishlarkaev E I 
Published: November 2019

Abstract
Annotation. Purpose: The purpose of the presented research is to establish the influence of natural pastures of the arid zone of the Volgograd region on the formation of meat productivity of rams of different types of edilbay breed. Methodology: The studies were carried out using modern mathematical-statistical methods for processing experimental data. Concrete recommendations are given to increase the production of mutton received from sheep of the edilbay breed and to improve its quality indicators. Results: Experimental studies continued for 10 months. For the entire period of the experiment, in terms of body weight, the rams of the new type (78.50 kg) were larger than the animals of the original type (74.20 kg) by 4.3 kg, or 5.79%. Amino acid analysis of the longest muscle of the back of experimental rams showed that the total amount of amino acids contained in mutton obtained from animals of the new type, irreplaceable, was 8.08%, which is higher compared to the analogs of the initial type by 0.47%. According to the content of replaceable amino acids in mutton, the same tendency was observed for the superiority of mutton obtained from animals of a new type as compared to the original type. A comparative study of the chemical composition of mutton has shown that animals of a new type exceed the indicators of the original type in calcium content (Ca) by 3.64 μg / g; iron (Fe) at 1.32 μg / g; iodine (I) at 0.04 μg / g; potassium (K) at 140 μg / g; manganese (Mg) at 14 μg / g; selenium (Se) at 0.02 μg / g. Recommendations: The experimental work carried out has shown that animals of a new type not only increase their live weight faster, but also accumulate much more elements entering the body, and also increase the nutritional value of mutton due to a higher accumulation of amino acids in its structure. Therefore, in the future, in order to increase the production of mutton and improve its quality, it is necessary to use animals of the Edilbay breed of a new type.
Productivity and biological value of milk of cows of various eco-genetic types
Authors: Gorlov I F , Slozhenkina M I , Mosolova N I , Mishina O Yu , Vorontsova E S 
Published: November 2019

Abstract
The article gives comparative characteristics of the quality indicators of dairy raw materials obtained from Holstein first-calf heifers delivered to the Volgograd region of Russia from different countries. The research study consisted in processing the data of qualitative and quantitative indices of the cow’s milk production and assessing the nutritional and biological parameters of milk according to current standards. Differences on productivity, in the nutritional and biological values of milk depending on the ecological and genetic types of animals have been revealed. In terms of the milk yield for 305 days of lactation, the research has established the superiority of animals of American selection compared with ones of German, Danish and Australian selection by 100 kg, 600 kg and 620 kg, respectively. The cows of German selection were registered to have the highest content of the weight fraction of milk fat, i.e., 4.01%. Australian Holstein heifers had the highest weight fraction of milk protein (3.24%) and amino acids (valine, isoleucine, leucine, lysine, methionine, tryptophan, phenylalanine, aspartic acid, cystine, arginine and histidine). Animals of Danish Holstein breed were noted for a higher content of macro- and microelements, i.e., calcium, magnesium, zinc, manganese, iodine and silicon. For animals of Danish and American selections, some activities to increase the weight fraction of milk protein have been recommended to perform.
Stimulation of sexual function of cows as a method of herd reproduction increase
Authors: Lishchuk A , Malakhova N , Piskunova O 
Published: November 2019

Abstract
The current political situation in the world, international sanctions applied to Russia; force us to pay more attention to the development of domestic sectors of the agro-industrial complex, including dairy cattle breeding. One of the most important conditions for the restoration and development of dairy farming and increasing its productivity in the Oryol region and the Russian Federation as a whole is rationally organized reproduction of the herd. The purpose of the study is to analyze the reasons of the low rate of fertilization of cows in livestock farms in the Oryol region, ways and methods for regulating the fertility of cattle.
Use of genetic markers of meat productivity in breeding of Hereford breed bulls
Authors: Dubovskova M P , Selionova M I , Chizhova L N , Surzhikova E S , Gerasimov N P , Mikhailenko A K , Dolgashova M A 
Published: November 2019

Abstract
The aim of the study was to assess the genetic potential in Canadian Hereford sires using DNA markers, identify complex genotypes and assess their impact on the growth, development and meat productivity of its offspring. Groups of sons were formed taking into account the complex genotypes of sires: group 1 (n = 28) – sons of bulls carrying in their genome a complex of genotypes with desired alleles; group 2 (n = 30) – sons of bulls with a complex of genotypes that lack the desired alleles. The offspring from bulls-carriers of the “desirable” alleles in complex CAPN1, GH, Lep, TG5 genes that meet the exterior requirements exceeded their peers in live weight (P < 0.05), carcass weight (P < 0.05) and muscle tissue (P < 0.05). The maximum conversion rate of feed protein into product protein was also established in the group of sons from selected bulls. Thus, animal selection for body conformation type is advisable to combine with the herd genotyping for a complex of genotypes associated with different economically useful traits when creating highly efficient population of beef cattle.
Productive qualities and quality of large white pigs’ meat using vitamin feed additive
Authors: Burtseva S V , Pushkarev I A , Trebukhov A V , Vladimirov N I , Tkachenko L V , Klimenok I I 
Published: November 2019

Abstract
In 2015-2016, OJSC Lynevsky Plemazavod in Smolensk District of Altai Territory studied the use of LipoCar vitamin feed additive on large white breed pigs. The experiment was carried out on pregnant sows and then on piglets obtained from them. In the control group and 2 experimental groups the sows received the main ration of the farm, and the sows of 1 and 3 experimental groups were additionally fed the feed additive "LipoCar" in a dose of 2.1 g per head per day for 20 days.After weaning the piglets during the growing period 4 groups of young animals were formed. In the control and 1 experimental group young animals were fed only the main ration of the farm. In addition to the basic diet, piglets from groups 2 and 3 received the feed additive "LipoCar" from the age of 60 days for 40 days. The use of the feed additive contributed to an increase in the live weight of 2 and 3 experimental groups at the age of 5 and 6 months by 4.8-11.7% (p≤0.05-0.001). Pigs in groups 1, 2 and 3 in the age group 4 to 5 months had higher average daily increases of 10.3-15.8% (p<0.05-0.001) compared to controls. The live weight of 100 kg of young animals in groups 2 and 3 with a difference of 5.5-7.9% (p≤0.05-0.01) in relation to control was reached more quickly. Animals of all experimental groups had a higher slaughter yield by 1.6-3.1%. Pigs in the 3 experimental groups had a 15.2% (p≤0.01) lower fat thickness than in control variant. There is a tendency to increase the moisture-bonding ability of pigs of the first experimental group by 1.8% as opposed to the control group. The tendency to a higher content of dry matter by 1.9-5.2% and protein by 1.7-2.2% in the meat of pigs of experimental groups is established.
Use of a mineral additive in cattle feeding
Authors: Sukhanova S F , Uskov G E , Lushnikov N A 
Published: November 2019

Abstract
Mineral additives on the basis of domestic natural minerals, products of chemical and microbiological production are developed. At calculation of structure of additives the daily requirement of animals for mineral substances taking into account a direction of productivity, biological and physiological features of an animal in structure of the experimental mineral additive No. 1 includes forage salt, monoammonium phosphate, brusite, chalk and salts of microcells -100 g of this additive allows to provide completely an animal with microcells, and also to compensate lack of phosphorus, calcium, sodium and magnesium. Mineral additive No. 2 in the amount of 300 g provides the animal’s need for trace elements. In addition, this additive includes a daily rate of feed salt and 60% of calcium, phosphorus and magnesium requirements. Therefore, the use of this additive makes it possible to almost fully meet the needs of animals in feed salt, macro- and microelements. Feeding experimental mineral additives to animals allowed increasing milk production during the break-up period by 3.9 and 6.6%, respectively. Balanced mineral nutrition reduced the duration of the service period by 10.2 and 15.8% in the pilot groups. The use of new mineral additives in the diet led to a decrease in production costs by 2.65 and 3.94%. In the end, all this led to an increase in the profitability of milk production: in the control group it was 21.02%, and in the experimental group it was by 3.79% and 5.85% more, respectively. Thus, thanks to the use of new types of mineral additives, animal productivity has increased, feed consumption per unit of production has decreased, milk quality has improved and profitability of production has increased.
Prospects of applying sunflower sludge after cavitational processing in poultry breeding
Authors: Bykov A V , Kvan O V , Duskaev G K , Popov V P , Sidorenko G A 
Published: November 2019

Abstract
Modern trends in science and technology, from the viewpoint of the concept of state policy on the field of nutrition, as well as the implementation of anti-crisis measures in the Russian agricultural sector, should be oriented towards the development of competitive food and feed products of a new generation that meets all international standards. The use of liquid media activated by variant ways in complex with the rational hydromechanical and ultrasonic exposure might be the most promising and the most modern methods of process optimization for feed production. Nowadays the technology of processing a high-viscous liquid media with gaining feed products of preset properties includes both electrochemical processing and cavitative disintegration. Our research revealed that addition of cavitation-treated products of sunflower sludge into the diet of broilers in the amount of 6% of the total feed mass positively affects the digestive extent in the growth period. Moreover, the introduction of cavitation-treated products of sunflower sludge with zeolite to the ration bears a positive effect on reducing consumption of feed per 1 kg of the live weight gain from 2.04 to 1.46 kg per capita, which improves the productive qualities.
Milk productivity and physical and chemical properties of milk of red-motley cow breed
Authors: Efimova L V , Zaznobina T V , Frolova O A , Ovcharenko A S , Ivanova O V , Ivanov E A , Tereshchenko V A 
Published: November 2019

Abstract
Increasing the milk yield and improving the qualitative composition of milk are crucial tasks in Russia and foreign countries. In Krasnoyarsk krai, red-motley cows occupy the largest share of all breeds (69.7%). Studies were conducted in the Arefyevskoye JSC of Krasnoyarsk krai on red-and-white breed cows. Physical and chemical properties of milk were determined in the laboratory of selection control of milk quality. Studies have shown that in red-motley breed cows, the milk yield, fat and dry matter increases with aging, and the number of somatic cells decreases. A high reliable relationship between the signs of qualitative composition of milk (fat - urea, lactose - urea, dry matter - urea, protein - dry matter, fat - dry matter and lactose - dry matter) in all lactation cows was established. For 305 days of lactation, the correlation between the signs of milk yield - fat and milk yield - protein was negative, the correlation between fat and protein content was positive.
Effect of various fats on digestibility of nutrients in diet of calves
Authors: Lebedev S V , Gavrish I A , Shejda E V , Miroshnikov I S , Ryazanov V A , Gubajdullina I Z , Makaeva A M 
Published: November 2019

Abstract
Article presents results of study on effect of various vegetable fats on digestibility of the main nutrients in young cattle. We obtained new data on effects of fats on absorption of amino acids, analyzed blood of experimental animals, depending on source of lipids. We found that use of native form of fat contributes to less intensive digestion of raw fat, in contrast to prepared. In this case, fatty acid composition plays significant role. Transformation of amino acids showed slight difference between the samples. As result of our research, thanks to unique surgical operation on transplantation of the pancreatic duct into isolated segment of intestine, new knowledge was obtained about exocrine function of pancreas, absorption of nutrients, and biochemical parameters of blood in cattle when exposed to fats in animals. Thus, obtained the data reflect body’s response to various types of fats, administered in doses that can be digested by body, without disrupting metabolism of other substances.
Productivity of white lupine (Lupinus albus L.) in different sowing periods in the conditions of the Southern Trans-Urals
Authors: Khalimullina A A , Sozinov A V , Porsev I N , Subbotin I A 
Published: November 2019

Abstract
The article describes the results of a three-year field experiment studying the effects of sowing periods on the crop structure, biometric indicators and productivity of white lupine varieties Degas and Gamma. The experiment was conducted in 2015-2017 on the leached chernozem of the experimental field of Kurgan State Agricultural Academy in the forest-steppe zone of Kurgan Region. The first sowing period corresponded to the physical soil maturity (the third decade of April - the first decade of May), the subsequent sowing periods were 6-8 days after the first one. Only in 2015, the full ripeness phase was not achieved (the third sowing period). The optimal sowing period was the first one: the yield of lupine grain varied from 2.5 to 14.9 t/ha.
State of the small rivers of the Volga basin within the lower Volga
Authors: Ovchinnikov A S , Loboyko V F , Bocharnikov V S , Ovcharova A Yu , Fomin S D 
Published: November 2019

Abstract
Nowadays the water management measures are ineffective. The field trips of 2017-2018 are carried out. The Lower Volga is drained by 37 watercourses, 34 of them belong to small rivers. The right bank tributaries of the Volga are short and flow in deep channels - 76% of all tributaries of its lower reaches. Left bank waterways are long, flowing in shallow channels - 24%. This is due to the location of the right bank of the Volga within the Volga Upland with a developed ravine-net system and a zone of dry steppes. The left bank of the lower reaches of the Volga River lies in the semi-desert zone, where the ravine-gully network is poorly developed. Factors affecting the state of these rivers: the flow of wastewater from industrial enterprises; pollution by fertilizers, pesticides; flow regulation; irrevocable withdrawal of river runoff for household, industrial, agricultural needs. Measures to address these problems: the transition to modern water-saving technologies; cleaning of domestic, agricultural and industrial waste; toughening control over compliance with the norms of discharge of pollutants into rivers; the establishment of water protection and sanitary zones for all reservoirs; clearing channels, coasts and floodplains from debris; tight control over livestock grazing in floodplains; planting forest belts along the river channels.
Improving the efficiency of a variable frequency asynchronous electric drive
Authors: Vasilev D A , Panteleeva L A , Lekomcev P L , Martynov K V , Kokonov S I , Shavkunov M L 
Published: November 2019

Abstract
Asynchronous electric drives hold leading positions in the global structure of electricity consumption. That’s why the development and implementation of an energy-efficient asynchronous electric drive are always economically feasible and important. The aim of this article is to develop an algorithm to minimize losses of asynchronous electric drive power. The article offers methods to optimize the level of losses in the winding of an electric motor, powered in a steady-state mode by a frequency converter with a scalar control. The substitution scheme for an asynchronous electric drive is considered as a consistent set of conductivities for the stator and rotor wirings. The research tasks were solved based on theoretical and experimental methods, including mathematical and physical simulation of studied processes using modern measuring and computation devices as well as statistic treatment of experimental data. The article offers methods to minimize the losses of power in the winding of an electric motor, powered in a steady-state mode by a frequency converter with a scalar control. The offered method is significantly different in that it uses the substitution for an asynchronous electric drive expressed as a consistent set of conductivities for the stator and motor wirings and the use of the energy efficiency ratio which determines the losses of power in an asynchronous drive for assessing the efficiency of a drive. The main principle for optimal frequency control of an asynchronous engine in terms of energy efficiency was formulated. The laboratory bench for studying the modes of frequency-controlled electric drives was built. The tested drive AIR100S4 showed an increase in energy efficiency ratio from 0.59 to 0.67.
The rationale for the method of powering rail electrified machines
Authors: Eroshenko G P , Loshkarev I Yu , Bakirov S M , Shlyupikov S V , Ischenko A P 
Published: November 2019

Abstract
The article presents the rationale for the choice of the method of powering electrical equipment for rail electrified machines used in greenhouses (frame areas). The comparison of two power sources according to the criterion of minimum operating costs is given. The main operating costs of machines with cable and battery power supply methods are highlighted, and cost components are shown. An expression that allows you to make a choice between cable and battery power supply is obtained. The choice of the method of power supply depends on the length of the greenhouse row, which determines the length of the cable line, on the duration of use of the rail mobile electrified machine during the day, on the difference in energy consumption during the direct conversion of electric into mechanical energy and through a battery, on the cost of batteries and cable.
Automatic control of air pressure in tires as a factor of safety improvement of wheeled vehicle operation in agricultural sector
Authors: Shkrabak R , Kalugin A , Starunova I 
Published: November 2019

Abstract
The article is devoted to the problem of automatic modes of tire pressure regulation in transport vehicles used generally in agriculture where there are a lot of roads performing in very bad condition with mud. Almost all kind of wheeled vehicles could be fitted with air pressure regulation systems. Limits of tire pressure usually regulated by manufacturer so any kind of engineering modifications of tire systems should work in that limits strictly bordered by manufacturer of vehicle and tires. The presented article contains engineering based and practical orientated way to improve drive safety and operator working conditions. Each type of road has such characteristics as safety speed, angle of rollover etc. The authors propose mathematical model of regulation process on the basis of the above mentioned factors of road and vehicle functioning. In the process of modern construction of vehicles the way of module upgrades of existing vehicles becomes more and more popular. In this regard the authors try to propose one of the compromise universal solution for the problem of automatic tire pressure control and regulation.
Theoretical justification of impact speeds of working tools on water-melons
Authors: Ceplyaev A N , Ulyanov M V , Lebed N I , Ceplyaev V A , Averina M B 
Published: November 2019

Abstract
The interaction process between the working tool of a collector and a fruit has been considered, as well as the process of hitting water-melons on various surfaces. A diagram of speed distribution when the working tool interacts with a fruit has been presented, as well as that of the area of expansion of plastic deformation after a shock impact on a fruit. The absolute and allowable increment speeds after a shock have been theoretically determined and justified. The parameters of the allowable speeds for variety “Crimson sweet” and for variety “Kholodok” have been theoretically found and the verification of the theoretical analysis was performed through experimental researches on an installation for determining the critical impact speed on a fruit. The comparison of the theoretical and experimental values of the limit speeds confirms the accuracy of the studies.
Multifactorial electrokinetic technology and electroosmotic model of irrigation of biogeocenoses
Authors: Visyagin V E , Kunitsun A G , Markova S V , Ivanov A V 
Published: November 2019

Abstract
The problem of reclamation of sludge pits at oil industry facilities has not been solved. A mechanism for implementing an accelerated technology of sludge dewatering by electroosmotic impacts has been developed. In order to specify processes, the concept “specific energy consumption for a mass transfer” was introduced. In order to eliminate the influence of relaxation of gradient fields, it was proposed to change electrical energy parameters.
Improvement of wear resistance of working elements from gray iron for development of the ground
Authors: Motorin V A , Gapich D S , Novikov A E , Bocharnikov V S , Fomin S D 
Published: November 2019

Abstract
The question of increasing the wear resistance and resource of working elements for the development of soil through the use of sound technological methods of manufacturing them from inexpensive materials is considered. Increased tribological characteristics of the working elements are achieved by optimally structuring them into functional areas, depending on the perceived loads and peculiarities of the working conditions. According to the results of research, a promising material for the manufacture of chisel plows bits - gray cast iron is proposed. Gray cast iron SCh 20 with a bleached layer on the working surface with a thickness of about 2 mm has higher tribological characteristics as compared to rolled steel, as well as technological and economic advantages in production due to the use of casting technologies.