bluuebunny/crossref_metadata_2025_split huggingface dataset:
Milk yield and milk productivity of meat cow breeds of the Northern Trans-Urals
Authors: Bakharev A A , Sheveleva O M , Chasovshchikova M A , Aleksandrova S S , Sukhanova S F , Koshchaev A G 
Published: January 2021

Abstract
The article describes characteristics of milk productivity of meat cow breeds in the south of Tyumen region. The breeds under study (Hereford, Charolais, Limousine, Salers and Obrak) are compared. The level of milk productivity in Hereford, Obrak and Salers cows is higher than that of limousine and Charolais. The average daily productivity of Hereford cows was 4.97 kg, Obrak cows – 4.89 kg, Salers cows – 4.77 kg, limousines cows – 4.51 kg and Charolais cows – 4.44 kg. Hereford cows had the most nutritious milk – 3103.8 J, milk produced by Obrak and Salers cows had a nutritional value which was lower by 1.0 %, by limousine cows – by 2.8 %, by Charolais cows – by 4.3 %. Milk productivity tends to increase with age and different generations. Thus, Charolais cows had the highest milk yield, and the Limousine cows had the lowest milk yield. Unique and time-consuming data that can be used by all agricultural enterprises are presented.
Agrochemical assessment of cultivation efficacy for different potato varieties on meadow-chernozem soils of the Irtysh river area in Western Siberia
Authors: Temereva I V , Smirnova T B , Chemisenko O V 
Published: January 2021

Abstract
This article presents an assessment of domestic and imported potato varieties’ productivity and chemical dynamics during their vegetation under natural conditions on meadow-chernozem soils of Irtysh river area in Western Siberia. This research aims to determine optimal nitrogen and phosphorus content in potato leaves during the plant’s flowering. It is notable that nitrogen and phosphorus dynamics in potato plants on different stages of development are mostly characterizing potato species rather than potato varieties, while crop yield rates reflect mostly varietal differences. In this research, different potato varieties have been assessed by their resistance to unbalanced conditions and nitrogen deficiency.
Optimization of agricultural practices in winter crops Coriandrum sativum L.
Authors: Turin E N , Shestopalov M V , Radchenko A F , Ganockaya T L , Rostova E N , Karaeva N V , Svyatuk Yu V , Susskiy A N 
Published: January 2021

Abstract
The total volume of world production of essential oil products reaches 250 thousand tons per year, which use up to 300 species of cultivated plants and wild-growing volatile-oil-bearing plants. The soil and climatic conditions in the south of Russia are favorable for the successful development of the essential oil industry, which is important for our country. Sowing coriander (Coriandrum sativum L.) is the most common essential oil culture of the Russian Federation and countries of the Union of Independent States. Its crops occupy about 82.4% of all areas of volatile-oil-bearing plants. Coriander fruits contain from 1.5 to 1.8% essential oil. The main component of the essential oil, linalool, and serves as the initial product for the production of a number of fragrant substances with the smells of lemon, orange, rose, violet, etc., which are successfully used in the perfumery, food, and distillery industries. Coriander is also a honey plant. Due to the growth in demand and gross purchases of coriander seeds associated with its high purchase price, problems arose with increasing its productivity and improving the technology of cultivation. Due to the large volumes of sales of both coriander raw materials and finished products, the levels of profitability and net income of farms both in the Republic of Crimea and in the Russian Federation as a whole, as well as the development of the agro-industrial complex will significantly increase. The above analysis of domestic and foreign literature in this review article shows that winter coriander crops are most productive compared to spring crops. Introduction to the production of winter crops of coriander, with the implementation of all elements of the cultivation technology, is a promising direction of its cultivation in the Crimea, as it allows more efficient use of soil moisture, which accumulates during the autumn-winter period.
Evaluating the distribution of sugar beet seeds at sowing
Authors: Vasilenko V V , Vasilenko S V , Achkasova N N 
Published: January 2021

Abstract
A mathematical model is proposed for the formation of a uniform row of seeds in the sowing furrow in order to place them at the same intervals. A key role in this process is played by the random deviation of each seed from the intended place of laying. A mathematical model using probability theory was developed based on the results of laboratory experiments with sugar beet seeds sown onto sticky tape. The consistency of spacing between seeds is influenced by seed rate, i.e. seed number per one meter length of row, the speed of the seeders and the speed of rotation of a seed disc in the machine of exact seeding. Studies have shown that a sufficiently high accuracy of seed placement is achieved if the seeding disc rotates at a speed of 0.24-0.27 m/s, the speed of the drill is not more than 6 km/h, and the seeding dose is not higher than 8 pcs/m. In the field, the coefficient of variation of intervals is higher than on sticky tape, but does not exceed 0.33. There is no seed inversion, and the yield level is more than 98% of the maximum possible. Further improvement in seeding quality can only be achieved by further reducing the speed of precision seeding drills or by design upgrades to align the speed of the seeding machine and the rotation speed of the seeding disc.
Modernization of engineering support of crop cultivation
Authors: Maslov G G , Yudina E M , Ushakov D A , Samurganov G E 
Published: January 2021

Abstract
This paper gives substantiations to a system of effective engineering support of crop cultivation for improving competitiveness of produced goods. Considering the modernization of plant cultivation techniques and technical facilities to carry out agricultural practices, the optimal system of machines for mechanizing crop cultivation was proposed. In substantiating the system of machines, the method of analysis and synthesis of existing and proposed agricultural practices with their engineering support, the methods of modeling and optimization of production processes were proposed to determine the parameters and operating modes of the proposed machines in the system, the planning of a multifactorial experiment according to the BК-plan was used. As a result of the research, the original engineering support system of crop cultivation for lowland agricultural landscapes is proposed, which, according to calculations conducted, allows increasing labor productivity by at least a factor of two. It became possible due to modernization of tillage processes, sowing and harvesting, by combining separate previously technological operations in multifunctional units. The modernization of machine-tractor units was accomplished using original devices for serial machines according to the inventions of the authors. The proposed multifunctional units without a break in time, in a single stream and pace carry out production processes that coincide in calendar terms in the technology of a cultivated agricultural crop, contributing to the quality of work and higher yields.
Impact of the Tirsana BSC energy supplement on the productivity of Ayrshire cows
Authors: Zabegalova G N , Kasatkina I A , Serkova A N , Sysoyeva E V 
Published: January 2021

Abstract
Nowadays, a new science-based approach to animal feeding is required to create conditions for the full realization of their potential with intensive use of livestock. This research was an experimental test that aimed to evaluate effective feed intake of energy supplements TirsanaBSC by high-yield Ayrshire cows in the transit period. As a result of the supplement application the daily milk yield increased during 100 days of milking cows. The amount of milk fat and protein increased as well. There was an increase in carotene, glucose, pyruvic acid in the blood of experimental cows and reducing non-esterified fatty acids (NEFA). Adding the supplement Tirsana BSC to the diet of highly productive Ayrshire cows improved the quality of their colostrum.
Influence of steer genotypes on the features of muscle development in the postnatal period of ontogenesis
Authors: Zhaimysheva C S , Kosilov V I , Voroshilova L N , Gerasimova T G 
Published: January 2021

Abstract
The study of the carcass muscles development was carried out on Simmental and Kazakh White-Headed steers and their first generation hybrids. At the age of 18 months, the control slaughter of 3 steers of different genotypes was carried out: I - Simmental, II - Kazakh White-Headed, III - 1/2 Kazakh White-Headed x 1/2 Simmental. To study the development of muscle groups and individual muscles by anatomical regions, the left half-carcasses were prepared, taking into account the methodical instructions. To facilitate the analysis of the material, the muscles were grouped according to the relevant joints and the topographic location by the generally accepted pattern. The muscles development was studied using the data on the absolute mass of individual muscles and muscle groups. It was established that the steers of group III surpassed those of groups I and II in the total muscle mass of the spinal column, which was 1.28-0.45 kg (10.85-3.56%), the total muscle mass of the shoulder girdle - 1.45-0.51 kg (9.78-3.51%), thoracic limb - 0.72-0.25 kg (9.77-3.43%), pelvic limb - 3.16-1.11 kg (9.78-3.45%) and, in general, throughout the half-carcass of the muscles considered - 6.62-2.33 kg (9.79-3.44%).
Assessment of photosynthetic productivity of new perennial forage crops in forest-steppe conditions of Western Siberia
Authors: Chupina M P , Stepanov A F 
Published: January 2021

Abstract
The article presents the results of six years of experience in comparative evaluation of perennial forage crops (Sida hermaphrodita Rusby., Silphium perfoliatum L., Polygonum divaricatun L., Polygonum weyrichii Fr. Schmidt, Helianthus tuberosus L., Rhaponticum carthamoides (Willd.), Symphytum asperum Lep., Urtica dioica L., Isatis tinctoria L., Rumex tianschanicus L. × Rumex patientia L.) on parameters of photosynthetic activity and dry matter yield in the forest-steppe conditions of Western Siberia. These crops are characterized by environmental plasticity, longevity (up to 25 years), high productivity (30-100 t/ha of green mass). And they have a versatile economic use. The experiment’s purpose is to assess the potential of crop cultivation and recommend species for inclusion in the regional cropping system. It was found that the largest area indicators of the assimilable apparatus (131.4-149.3 thousand m2 / ha) and photosynthetic potential (4.5–4.6 million m2 day/ha) were in S. hermaphrodita and S. perfoliatum crops, which exceeded the maize values by 1.2–2.4 times. A significant increase in leaf area in these crops contributed to a 23% decrease in net photosynthesis productivity compared to maize. By collecting dry matter for two mowings, these crops surpassed maize by 65-85% with a relatively high indicator of EER PAR (1.2 - 1.4%).
Heat and mass transfer modelling for storage of food bulk raw materials under active ventilation
Authors: Egorova O A , Alekseev G V , Yukhnik I P , Sychev A A 
Published: January 2021

Abstract
The paper aims to research a possibility of storing plant agricultural raw materials. Rational management of natural resources is a dominant trend in the economy development, which involves the fullest processing of plant raw materials intended for human consumption with minimum waste. Active grain ventilation is conducted by drying at a low temperature to preserve the quality of raw and wet grain, as well as by cooling grain batches stored to increase their durability. With a certain moisture content grain can be gradually dried, cooled, preserved, aerated depending on its condition and purpose. These technological methods provide a significant reduction in energy costs in comparison with thermal drying, as well as improving the quality of seeds and grains due to the “soft” completion of the biochemical processes associated with maturation and stabilization of the protein-enzyme complex. Active ventilation requires no complex equipment or large capital investments. Therefore, it is no coincidence that the technologies developed on the basis of active ventilation are widely used in processing of main volumes of high quality grain in USA, Canada, and Australia. The intensification of the grain preparation process achieved by this way reduces energy costs of drying. The study models the storage conditions for bulks of various types of agricultural raw materials under active ventilation.
Improving the efficiency of gravity devices for grain transport
Authors: Trotsenko V V , Zabudsky A I , Trotsenko I V , Ivanova I P 
Published: January 2021

Abstract
The article is devoted to the current problem of improving the efficiency of mechanized grain processing by reducing its mechanical damage during the operation of gravity transporting devices. It was found that as a result of high-speed movement of grain material with a low flow density, the number of impacts of grains on each other and on the walls of the gravity device increases, which increases the probability of damage to individual grains. To reduce the speed of the grain flow, a variant of a portioned grain pipeline with gravity-driven flaps is proposed. Calculations and experimental studies show that the speed of grain flow can be reduced to 2.5 m/s, which significantly reduces the damaging ability of the gravity device with constant performance.
The friction of root crops on different surfaces in preparation for feeding animals
Authors: Zazulya A , Vedishchev S , Filippova O , Simonov G , Brusenkov A , Konovalov V , Ilina I 
Published: January 2021

Abstract
The purpose of the research was to determine the functional dependencies of the friction parameters of root crops on various surfaces for subsequent use in energy calculations of working bodies. The research methodology provided for the experimental determination of static and kinetic friction coefficients on various surfaces and subsequent statistical processing of experimental data to obtain a regression model of indicators from the pressure of compression. Based on the research, equations were obtained that characterize the friction processes of root crops on various surfaces (steel, rubber, painted steel), which will serve for their further use in the design of machines and energy calculation. The highest friction coefficient corresponds to a pressure of 4.0-5.0 kPa, regardless of the static or dynamic loading method. At motion speeds of surfaces up to 2.0…2.6 m/s, the released juice manages to squeeze out of the contact zone. This increases the friction coefficient. At speeds from 2.000…3.095 m/s, the resulting juice does not have time to leak out of the contact zone, and therefore works as a liquid lubrication. As the speed increases, the friction coefficient decreases.
Product properties and histostructure of young sheepskin of the Dorper Breed
Authors: Pogodaev V A , Arilov A N , Mangutov S N , Khechev E V 
Published: January 2021

Abstract
The aim of the study is to analyze the commodity properties of sheepskin and the histostructure of the skin of rams of Kalmyk fat tail breed and crossbreeds (1/2 Kalmyk fat tail × 1/2 Dorper). The uterus of group I was covered with sheep of the Kalmyk fat tail breed, and the ewes of group II with sheep of the Dorper breed (experimental group). The study revealed, the mass of paired sheepskins of young group I was greater than that of peers of group II by 1.0 kg or 34.5 % (P> 0.999). A large live weight affected the large area of the skin of the second group of young animals, and the length of the hair of the experimental group, which turned out to be shorter, affected the smaller weight of the sheepskin. Pets have the best quality indicators of sheepskin and the best histological structure of the skin. Cross-breed animals have 14.52 % of more elastic, stronger and less thick skin, due to a greater epidermis thickness of 27.7 % and a denser reticular layer of 13.7 %. Wool cover (the ratio of primary follicle on the secondary) in cross-breeding sheep is 10.47 % thicker, compared to peers of white color, which corresponds to the technological requirements for the production of high-quality sheepskins.
Prospects for use of nanofiltration buttermilk and whey concentrates in the technology of fermented milk products with an increased mass fraction of protein
Authors: Bobrova A V , Ostretsova N G 
Published: January 2021

Abstract
In compliance to the studies data on the composition and properties of protein concentrates of buttermilk and whey obtained by the method of nanofiltration have been expanded and systematized. It has been found that buttermilk and whey concentrates with a mass fraction of solids of 20 % contain up to 7 and 2.3 % protein, respectively. The dispersion composition and the nature of the concentrates microstructure have been studied using an electron microscope. When buttermilk has been concentrated by nanofiltration, the average diameter of the dispersed particles has not increased and amounted to (130 ± 30) nm, and the spatial mesh size has decreased by 3.2 times. When whey has been concentrated, the particle size has increased by 1.7 times while the spatial mesh size has decreased by 1.3 times. The regularities of the joint development of lactic acid and bifidobacteria in a milk base have been revealed with a different ratio of nanofiltration buttermilk and whey concentrates to substantiate the rational composition of the milk base. It has been proven that fermented milk products based on buttermilk and whey concentrates have increased biological value. The developed products contain 44-46 % more essential amino acids, the balance coefficient of amino acid composition is 17-18 % higher than those of cultured buttermilk.
Technological aspects of veterinary and sanitary control and safety of consumption of fin-footed mammals
Authors: Guz Yu N , Yakushin I V , Dovgan N B , Zhidik I Yu 
Published: January 2021

Abstract
The meat of fin-footed mammals contains complete protein with high biological value, as well as vitamins and minerals that are so necessary for the vital functions of the human body in the Far North. Nowadays fin-footed mammals are hunted only to provide food for indigenous people. In accordance with this, it was found that the procedure of the determination of the quality and safety of products obtained from marine mammals is outdated and requires changes. It is necessary to include in the regulatory and technical framework (GOST, SanPin) this type of meat and by-products of marine mammals, since this type of product is specific and the norms suitable for meat of all other slaughtered animals do not quite fit this category of meat because they do not contain indicators characterizing the quality and first of all, the safety of this type of product. The article considers the organization of the development of quota allocations for the fishing of marine mammals in the Chukotka Autonomous Region and the organization of veterinary and sanitary inspection of the products of slaughter of commercial animals.
Conceptual approaches to the development of safe food products based on rabbit breeding resources and plant composites
Authors: Kurchaeva E E , Derkanosova N M , Kashirina N A , Maksimov I V 
Published: January 2021

Abstract
The purpose of the work was to develop technologies for functional meat products, namely cooked and smoked sausages using the resources of the rabbit breeding industry and plant-based enriching additives. The conducted studies allow us to recommend using a rational dose of a complex protein-carbohydrate composition in the development of a new type of cooked-smoked sausage in the amount of 10%. It contributes to improving the functional properties of minced meat, due to the strong cross-linking of proteins of transglutaminase enzymes and as a result, a positive effect on the consistency of the product (increased elasticity, without the formation of voids). The chemical composition of cooked-smoked sausage of enriched composition was studied and the positive effect of introduced protein-carbohydrate composites on its quality indicators was established. Economic calculations have confirmed the feasibility of implementing the developed technologies in production, and the totality of the estimated indicators proves the real possibilities and feasibility of using regional meat and plant resources on the principles of resource conservation and self-sufficiency.
Reducing agents of drone brood products supplemented by royal jelly, propolis and chitosan derivatives
Authors: Mitrofanov D V , Vakhonina E A , Budnikova N V 
Published: January 2021

Abstract
Violation of the ratio of nutrients causes diseases. Antioxidants occupy a special place among micronutrients, which can slow down aging and prevent the development of tumors. Bee products, especially drone brood, propolis, royal jelly, and chitin-chitosan-melanin complex, are rich in antioxidants. This requires the development of new combined products that have a complex effect on the human body. As an indicator of the content of unsaturated compounds, the iodine number of the drone brood adsorbed by lactose-glucose adsorbents, as well as supplemented by the chitin-chitosan-melanin complex, propolis extract and royal jelly, was studied. The results showed that new products have a higher iodine number compared to drone brood on lactose-glucose adsorbents. This is promising for the widespread use of new products in human nutrition. The iodine number can be a reliable indicator of quality.
Quality of broiler chicken meat when applying supplement Mintreks
Authors: Mizhevikina A S , Lykasova I A , Savostina T V , Sayfulmulyukov E R 
Published: January 2021

Abstract
The development of the poultry industry involves the use of feed supplements and biologically active substances. They have various effects on the body of birds: growth and development stimulants, macro- and microelements, enterosorbents, pro- and prebiotics, etc. A greater economic effect is achieved by using complex supplements. However, when using them, their effect on the veterinary and sanitary characteristics of meat is not taken into account. The issue of manufacturability of the resulting product is crucial. Poultry meat, especially white meat, is considered to be rather dry. Therefore, feed supplements retain moisture in meat. The work deals with quality of broiler chicken meat when applying the Mintrex supplement. Mintrex consists of mineral components translated into an easily digestible form. The main ones are Zn – 50 mg/kg, Cu – 10 mg/kg, Mn – 50 mg/kg feed). Mintrex is used to increase meat productivity and fatness of birds. The studies have proved that Mintrex does not change sensory, biochemical parameters, seeding, maturation, and meat preservation during storage, but increases the energy value of meat and its water-holding ability.