bluuebunny/crossref_metadata_2025 huggingface dataset:
On the issue of soybeans and soybean meal contamination with glyphosate
Authors: Sorokin Alexander Valerievich , Petrov Alexander Sergeevich , Batov Ilia Vadimovich , Nekrasov Denis Yurievich
Published: April 2023

The data of residual content of glyphosate and its metabolite in soybean and soybean meal imported to the Russian Federation are presented. The properties of glyphosate, and methods of its application are shown; risks of its usage are discribed. The existing ways of glyphosate residual amounts regulation in soybean and soybean meal, described, as well as control methods. According the research, the average content of glyphosate in imported soybeans is about 2.088 mg/kg, with maximum at 3.41 mg/kg. The average glyphosate concentration in soybean meal is 1.57 mg/kg; maximum – 2.28 mg / kg. It was found what soybeans from Brazil, Paraguay and Argentina are contaminated with glyphosate and its metabolite at concentrations up to 4.15 and 5.23 mg/kg, respectively. Soybean meal imported into the Russian Federation from these countries may contain glyphosate at the level about 2.09 mg/kg. It has been confirmed that during the further processing of soybean and soybean meal, glyphosate and its metabolite can to contaminate animal feed. The maximum detected concentration of glyphosate in the feed is 0.5 mg/kg, and for glyphosate metabolite – 1.26 mg/kg.
Effect of various doses of organic manganese on methanogenesis and metabolic processes in the rumen of meat bulls
Authors: Ryazanov Vitaly Aleksandrovich , Nurzhanov Baer Serekpaevich , Duskaev Galimzhan Kalikhanovich
Published: April 2023

The article reflects data on the positive effect of organic manganese on methanogenesis and metabolic processes in the rumen of bulls. It was found that the introduction of manganese at a dose of 4.0 g per 1 kg of dry matter in a sample with bran to a greater extent reduced the production of methane by 26.4% relative to the control.
Justification of the modes of connection of the dosing system to the mixer
Authors: Bagirova Nigyar Arzu , Safarova Ulviya Eldar
Published: April 2023

In the practice of producing concentrated compound feeds, the use of meat and bone meal is widespread. 1 kg of this feed component contains 50 g of protein. In most economically developed countries, the use of waste in the technological chain of processing agricultural products for the preparation of concentrated compound feeds contributes both to meeting the needs of intensive animal husbandry and to the rational use of all reserve resources. It is determined, that the variation in the composition of concentrated compound feeds has wide possibilities. The choice of the optimal composition or the preparation of an optimal plan for the effective use of the component is of particular importance. It  should be done in such a way that labor, investment and energy costs do not increase, and with the choice of effective technological options and technical means.
Study of air dust content during acceptance of sunflower meal
Authors: Belova Tatyana Ivanovna , Shkrabak Vladimir Stepanovich , Agashkov Evgeny Mikhailovich , Zakharchenko Galina Dmitrievna , Shkrabak Roman Vladimirovich
Published: April 2023

The article provides information on the dustiness of the air in the working area when accepting sunflower meal at a feed mill, which is carried out by pouring the meal from the bodies of onboard vehicles into the receiving hopper. The results of measurements of dust concentration and assessment of its disperse composition at various stages of acceptance of sunflower meal are presented. The parameters of the disperse composition of dust are of a probabilistic nature, therefore, along with the experimental values, the parameters of the distribution function are given.
Prospects for the use of cultivated algae chlorella in the purification and disinfection of wastewater, hydraulic, solar photobioreactors
Authors: Karpov Mikhail Vyacheslavovich , Naumova Olga Valerievna , Zhizdyuk Andrey Anatolievich , Malysheva Anna Aleksandrovna
Published: April 2023

The article discusses the potential use of Chlorella microalgae in wastewater treatment plants, at the stage of disinfection and post-treatment of wastewater to the level corresponding to the sanitary standards of the Russian Federation. The analysis of statistical data related to the use of Chlorella vulgaris suspension as a microbiological and chemical element of biological wastewater treatment before its discharge into the water body is carried out. Studied promising areas of building energy saving technological complexes, including hydraulic (flow), solar photobioreactors, able to decontaminate waste water and to cultivate used in the disinfection and legalisatie water features, strains of Chlorella. The economic efficiency of technological complexes using Chlorella vulgaris strain (IGF № C-111 or BIN) at the stage of post-treatment and disinfection of wastewater is determined.
Optimal parameters of the tractor and arable unit for various optimization criteria
Authors: Khafizov Kamil Abdulkhakovich , Khafizov Ramil Nailovich , Tyurin Igor Yurievich , Levchenko Galina Viktorovna , Gamayunov Daniil Vladimirovich , Lushnikov Andrey Aleksandrovich
Published: April 2023

The article is devoted to identifying the optimal values of the main parameters of the tractor (its weight and engine power) and the unit (the width of the plow capture and the working velocity of the unit) according to various optimization criteria: minimum straight and indirect total energy costs taking into account the energy of a lost harvest; Minimum emission of carbon dioxide at the stages of manufacture and operation, taking into account the amount of carbon dioxide, which could be absorbed from the atmosphere, lost during the work of the unit, crops; maximum aggregate performance in one hour of time The minimum fuel consumption per ha was treated as an area of the area and the maximum traction tractor efficiency. According to the results of computational experiments using mathematical models of the arable unit, it was revealed that the optimal values of the main parameters of the tractor and the unit coincide according to the first three optimization criteria and for the selected working conditions are: the weight of the tractor 130 kN; engine power 398 hp; the width of the capture of the unit is 5.25 m; working speed is 7.5 km / h.
Influence of gas burner design on heat transfer in low-power furnaces
Authors: Chulenyov Anatoliy Sergeevich
Published: April 2023

An experimental study showed that the influence of these factors is mutually equalized and the heat transfer in the combustion chamber does not change significantly. It was possible to establish that the nature of the heat absorption of individual elements of the combustion chamber did not change significantly in comparison with experiments with kinetic fuel combustion and distributed injection. An increase in heat removal can be obtained by no more than 5-7 % with an excess air coefficient of up to 1.5. It has been established that the use of an infrared burner provides an intensification of heat transfer processes in the furnace by 5-9 % only when operating on gas with an excess air coefficient of up to 1.25. It has been established that the maximum possible (subject to the operating conditions of the furnace) intensification of heat transfer in the studied range of geometric and operating parameters of the furnace is up to 15 %. Significantly turbulize and radically change the aerodynamics in the furnace volume allows the reverse scheme of the development of the torch and the movement of combustion products.
Dependence of soft wheat grain yield on unstable soil moisture
Authors: Mitrofanov Dmitry Vladimirovich
Published: April 2023

The purpose of the study is to establish the influence of precursors, fertilizers and reserves of productive moisture during the growing season on the yield of spring soft wheat in the arid conditions of the Southern Urals. Field experiments are conducted for the first time from 2002 to 2021 on nine sowing options (for hard, corn, millet, sorghum, peas) of soft wheat in crop rotations and permanent sowing on the chernozems of the southern Orenburg region. The research is conducted using the field, thermostatic-weight method and multiple regression analysis is used. In the fifth (millet) and seventh (pea) variants, the maximum amount of spring moisture is 44.4; 43.1 mm and 136.4; 142.7 mm in soil layers 0-30; 0-100 cm. The same highest yield is observed for millet and pea precursors on the background of 0.89 t with nitroammophos and 0.82 t/ha without fertilizers. The best grain gain from mineral fertilizers was obtained by 0.12 tons for durum wheat (the eighth option) in a double-field crop rotation. In the third variant (for durum wheat), the maximum effect of moisture on grain yield in the soil layer of 0-30, 0-100 cm is determined and ranges from 22.60 to 39.83% with a significance criterion of 0.002-0.03 units. Basically, the formation of soft wheat grains of 0.81 and 0.73 t / ha occurs due to moisture consumption of 28.8; 87.4 mm. The best influence of precursors, mineral fertilizers and productive moisture reserves on the yield of soft wheat grain after cultivation of durum wheat, millet and peas in crop rotations has been revealed.
Restoration of moisture reserves in the soil in the grain-fallow crop rotation before sowing spring and winter wheat in the Saratov Trans-Volga region
Authors: Solodovnikov Anatoly Petrovich , Dauletov Makhat Askarbekovich , Suraev Dmitry Vasilievich , Molchanova Nadezhda Petrovna , Yumasheva Maria Aleksandrovna
Published: April 2023

As a result of many years of field experiments, it has been established that in the Saratov Trans-Volga region, after autumn-winter precipitation in a meter-long layer of soil, moisture reserves corresponding to the lowest moisture capacity are not restored. In a clean fallow after sunflower, soil moisture reached maximum values of 81–86% HB in three years out of six, 70–76% HB in one year, and less than 70% of minimum moisture-holding capacity in two years. On average, over six years, soil moisture changed from 72% at minimum tillage to 76% of minimum moisture-holding capacity at deep non-moldboard. During the period of sowing winter wheat in clean fallows, on average for six years, soil moisture remained at the level of 61.9–65.8% of minimum moisture-holding capacity. Such insignificant reserves of moisture in the soil without September precipitation do not provide friendly seedlings and normal development of winter wheat. Before sowing spring wheat after the predecessor - chickpea, the highest humidity reached only 75–82 % of minimum moisture-holding capacity for three years. The minimum values of soil moisture at the level of 57–64 % of minimum moisture-holding capacity were for two years. Experimental data obtained over six years (2017–2022) show that a 10–12 cm main tillage reduces the yield of winter wheat by 0.37 t/ha, or by 14.6%, of spring wheat by 0, 29 t/ha, or by 24.8%.
Technology of cultivation of annual Alexandrian clover (Trifolium alexandrinum)
Authors: Lekova Inna Arturovna
Published: April 2023

The article discusses the results of research on a new technology we developed for the cultivation of an annual crop of Alexandrian clover (Trifolium alexandrinum), which includes a method of pre-sowing treatment of seeds with different terms and methods of sowing. Recently, along with agrotechnical measures to stabilize crop production, there is a need to cultivate non-traditional crops that are useful for human nutrition and health, and not the least role in this process is played by annual legumes. The short vegetation cycle and the intensive rate of crop formation allow them to be cultivated in repeated crops in places with favorable bio-climatic potential. Annual forage grasses have a variety of uses and purposes. In the zone of sufficient moistening, these are good fallow-grown crops. Annual legumes play an important role in creating a strong fodder base: in the summer, they are the main source of green feed production, they serve for the preparation of hay, haylage, silage, concentrated feed in the form of grass flour, cutting, full-fledged briquettes and pellets; annual legumes can also be used as a concentrated feed in the form of grain. Harvesting grasses in the early phases of the growing season and with multi-crop use with the use of artificial drying makes it possible to obtain a feed that is not inferior in total caloric content to oats and barley, and in protein content is significantly superior to them. Annual grasses are very diverse in terms of their agrobiological characteristics: they are widely used as preliminary crops on indigenous improvement lands and as links in the pasture conveyor. Our research conducted over four years (2017-2020) revealed that pre-sowing treatment of seeds of Alexandrian clover double and triple mixtures of PABA, the krezatsinom and infusion of chicory (against the background of preliminary stratification) provides low-cost, environmentally friendly way of pre-sowing stimulation of seeds of Alexandrian clover with simultaneous northering, adaptation, and selection of the best species for use in a specific region. Sowing clover for seeds is advantageously carried out with a width of 50 cm row spacing and seeding rate of 6 kg/ha. The optimal sowing date is beginning of March and the first week of September.
Morphobiochemical parameters of broiler blood when using the Reasil® Humic Health supplement
Authors: Dmitriev Nikita Olegovich , Salautin Vladimir Vasilyevich , Pudovkin Nikolai Aleksandrovich , Terentyeva Evgeniya Yurievna
Published: April 2023

The article presents data on the effect of the feed additive "Reasil® Humic Health" on the dynamics of morphological and biochemical parameters of broiler blood. It was found that the additive has an anti-inflammatory effect (the number of leukocytes and the ESR index) in the experimental group of poultry is 4% and 24% lower than in the control group broilers, and stimulates hematopoiesis (erythrocyte volume and hemoglobin concentration) in experimental broilers by 0.5 ? 1012 /l and 11 g/l more than in birds of the control group. The AST and ALT levels in the experimental group of broilers were lower than in the intact ones by 21% and 23%, respectively.
Modern aspects of pathogenetic therapy of newborn calves in neonatal gastroenteritis
Authors: Kalinkina Yulia Vasilievna , Fedorin Andrey Aleksandrovich , Kalyuzhniy Ivan Isaevich , Semivolos Alexander Mefodievich , Semivolos Sergey Аleksandrovich
Published: April 2023

The article presents the results of experimental studies of the effectiveness of the use of combined drugs of domestic production in the complex therapy of acute gastrointestinal pathology in newborn calves of the colostrum period. The therapeutic efficacy of various drug regimens used in mild and severe forms of neonatal gastroenteritis was evaluated. Hematological and biochemical parameters are presented before treatment and during therapy of experimental and control groups of calves with neonatal gastroenteritis. The most effective scheme of complex treatment of newborn calves with neonatal gastroenteritis has been established.
Optimization of cultivation of hybrids of Russian and Siberian sturgeon when using the "Abiotonic" feed additive in the diet
Authors: Poddubnaya Irina Vasilievna , Vasiliev Alexey Alekseevich , Suchkov Vasily Valentinovich , Sivokhina Lyubov Aleksandrovna
Published: April 2023

The results of the research work on feeding the biologically active additive "Abiotonic" showed that the best growth and development indicators were distinguished by sturgeons of the 2 experimental group, who received 1.0 ml of "Abiotonic" per 1 kg of live weight. The gross increase of one individual during the experiment in this group exceeded the control values by 6.96 %, the average daily increase by 7.1 %, and the relative increase by 9.53 %. Hybrids of the 2 experimental group exceeded the indicators of individuals from the control group in biological carcass length by 9.23 %, in head size by 5.58 %, carcass length by 11.79 %, tail stem length by 8.04 % and tail fin length by 8.56 %. Feeding the feed additive "Abiotonic" did not have a negative effect on the development of the internal organs of sturgeons, they did not have pathological changes in development. The costs of compound feed, crude protein and energy in the experimental groups receiving the feed additive "Abiotonic" with compound feed were 2.0 - 7.9 % lower than the control data.
The effect of alleles of the ЕАВ-locus on the dairy productivity of red-and-white breed cows
Authors: Ryzhova Natalia Gennadievna , Zyuzin Dmitry Vitalievich
Published: April 2023

The results of studying the allelofond of 196 cows of red-and-white breed by EAB locus of blood groups in one of the breeding farms of the Republic of Mordovia using immunogenetic monitoring are presented. The studies were carried out in the immunogenetic laboratory of FGBNU VNIIplem according to generally accepted methods. The analysis showed that the most common alleles in the conditions of breeding in the Republic of Mordovia were G2Y2E1'Q' (20.92%), Q'I'' (18.37%) and "-" (11.73%). The highest productivity on average for all lactations (10077 kg of milk) was obtained from cows carrying the Y2 allele, and the highest percentage of fat in milk (4.09%) was obtained from cows with the "-" allele.
Analysis of hydrotechnical, hydrological, climatic and environmental data for the organiza-tion and production of water treatment works
Authors: Karpov Mikhail Vyacheslavovich , Zhizdyuk Andrey Anatolievich
Published: April 2023

The article deals with problems in hydrogeological engineering. The methodology for hydrotechnical, hydrological, climatic and ecological conditions of a water body is described. The analysis of data for a specific reservoir on hydrotechnical, hydrological, climatic and environmental indicators is given. Hydrotechnical and hydrological data have shown that the actual water depths in the reservoir, after its siltation, do not allow the water body to support the processes of self-regulation (self-healing), therefore it is necessary to clean the reservoir from the products of siltation. In the work, climatic conditions are characterized by average monthly ambient temperatures. According to the ecological state of the reservoir, it is concluded that in order to restore the ability of a water body to self-healing (self-regulation) and normalize water use processes for the needs of fish farming and fishing, irrigation, water supply and recreation, it is necessary to periodically clean water bodies from siltation products. To ensure the quality of the construction of the facility, engineering design and construction should be carried out on the basis of a comprehensive and detailed hydrogeological, climatic and environmental study.
Introductory axial pumping equipment in observations operational mode
Authors: Tarasyants Sergey Andreevich , Shiryaev Vadim Nikolaevich , Nikolaenko Dmitry Vasilievich , Vasinev Maxim Sergeevich
Published: April 2023

The article analyzes pumping stations equipped with axial pumps in order to study the performance characteristics of hydromechanical equipment. The proposed measures will lead to energy savings at pumping stations located both in the regions of the Russian Federation and in neighboring countries.
The choice of the design of livestock buildings
Authors: Fatullaeva Kaminat Muradovna
Published: April 2023

The article calculates pressure losses due to friction and local resistance, which allows you to determine the total losses in the chimney. For normal operation of gas installations, conditions must be created under which a vacuum is created at the exit points of combustion products. The task of removing combustion products includes determining the cross sections of chimneys and connecting pipes.
Physical and mechanical properties of sheep manure
Authors: Fedorova Kristina Valerievna , Startsev Alexander Sergeevich , Khmyrov Viktor Dmitrievich , Sarbalina Bibigul Dzhesenbaevna
Published: April 2023

The article substantiates the expediency of using granulated sheep manure, identifies the reasons preventing the production of pellets that meet the requirements for their effective use. The most significant properties of sheep manure are highlighted. The methods for determining the moisture content of manure from the height of the shoulder, its density from the time of precipitation are given, the results of laboratory and field experiments are presented in the form of graphical dependencies. The description and principle of operation of the thermographic moisture meter Sartorius MA-150 is given.
Efficiency of foliar application and seed inoculation in chickpea cultivation in the conditions of the Trans-Volga dry steppe zone
Authors: Denisov Konstantin Evgenievich , Kondakov Konstantin  Sergeevich , Taspaev Nursultan Nurlanovich , Borisoglebskaya Anna Petrovna
Published: April 2023

The article studied the effect of seed inoculation and the use of various schemes for the treatment of chickpea crops with liquid fertilizers on chickpea productivity, germination density and plant density in the phase of full ripeness in the conditions of the dry steppe Trans-Volga. Foliar top dressing was carried out with a tank mixture of fertilizers (Fitosporin M, Borogum-Molybdenum, Bionex-Kemi NPK 21:4:4 + ME together with an adhesive) against the background of seed treatment with inoculants Rizotorfin and RizoBash. The conclusion was made about the advantage of using RizoBash as an inoculant in comparison with Rizotorfin. Its application ensured germination at the level of 95.0%, while in the control it was 83.1%. The application of this inoculant provides an increase in the level of completeness of seedlings, which in turn determines the optimal plant density for harvesting. After  RizoBash application, it ranged from 91.8 to 96.2%, depending on the scheme of foliar application. The double treatment of crops in the phase of 3 leaves and the budding phase turned out to be more effective. It has been established that chickpea plants are responsive to the use of seed inoculation in conjunction with foliar treatments carried out during the growing season of plants, which is reflected in an increase in yield. With a double treatment of crops against the background of the inoculation of seeds with RizoBash, the highest yield was for all variants of the experiment - 1.73 t/ha.
Use experience of cattle effluents and manure in the Belgorod region
Authors: Kotlyarova Ekaterina Gennadievna , Kovalyova Elena Vladimirovna , Kuzmina Olga Sergeevna
Published: April 2023

In the real farming conditions of the south-west of the Central Chernozem region (Belgorod oblast), it was found that the using local organic fertilizers – cattle effluents and manure, which differ in agrochemical composition and the degree of availability of nutrients, has an unequal effect on soil fertility and crop productivity. The use of cattle litter manure contributed to a significant improvement in soil fertility indicators such as organic matter content (by 0.4% abs.), degree of acidity (by 0.4 units.) and hydrolytic acidity (by 1.32 mmol/ 100 g of soil). Using of cattle effluents led to a significant excess of the agrocenoses productivity (by 1.2 thousand GU/ha or 30.4%) compared to the application of cattle manure. The most responsive crops for the cattle effluents application were sunflower, corn, perennial and annual grasses, which provided the harvest increasing by 23-113%. The use of cattle effluents was more economic effective compared to the application of cattle manure: profit and profitability were 2.9 and 3.1 times higher, respectively, and the cost price was 1.4 times lower.
Influence of climatic conditions on infection of sunflower lines by phoma black stem
Authors: Saukova Svetlana Leonidovna , Antonova Tatiana Sergeevna , Araslanova Nina Mikhailovna , Ivebor Maria Vyaheslavovna , Ryzhenko Elena Nikolaevna , Borisenko Oxana Mikhailovna
Published: April 2023

The purpose of the research was to analyze three year observations (2018–2020) for the climate changes effect on infection of the breeding sunflower lines (Helianthus annuus L.) by a Phoma black stem pathogen Plenodomus lindquistii (Frezzi) Gruyter, Aveskamp & Verkley in the central zone of the Krasnodar region. The disease was monitored on fields of V.S. Pustovoit All-Russian Research Institute of Oil Crops, Krasnodar. Analysis of climatic factors in years of the research resulted that heavy rainfalls (119.2?134.6 mm) exceeding multi-year averages (60.0 mm) by two times and the optimal average daily temperature 23.0?26.4 ?С in July are favorable for stem infection by Plenodomus lindquistii in the second half of the summer, in a phase of sunflower flowering – maturing. In 2018, the moisture deficit in June (11.0 mm) and August (6.8 mm) was a factor suppressing the viability of an infectious matter of a fungus that led to a low frequency of Phoma black stem on the sunflower lines (in average 20.3%). In 2019 and 2020, prevalence (P) and development (R) of Phoma black stem in average on sunflower lines were equal 23.3?29.9% and 21.4?28.1%, respectively. A line L 107 demonstrated a stable resistance to Plenodomus lindquistii infection during three years: amount of infected plants was within 5.7?8.3%, development was 3.8?8.3% at the infection level of 1–2 points. A susceptible line L 116 was selected (P: 47.5?62.8%, and R: 38.0?40.0%). Among the studied breeding lines, the sample VK 900 was the most susceptible to weather conditions of the year: prevalence of the Phoma black stem varied within 21.1?45.5% at the infection level of 1?3 points.
Efficiency of application of natural adaptogens in broiler farming
Authors: Gajiyev Rovshan Mustafa , Salmanova Kamala Arif , Mamedov Gabil Balakishi
Published: April 2023

The importance of testing the use of natural adaptogenic preparations  in local poultry farming in the breeding of broiler chickens is aimed at maximizing the productive potential of work and increasing the survival rate of chickens. From the first day to the age of seven weeks, the effects of the use of succinic and citric acid on the growth of live weight, survival and waste were experimentally tested in four groups. The results confirmed the positive effect of these drugs on important economic indicators.
Improved methods of cultivation of onions with the use of growth-stimulating preparations in the conditions of the Astrakhan region
Authors: Bondarenko Anastasia Nikolaevna , Chernik Dmitry Vladmirovich
Published: April 2023

For the first time in the North-West Caspian region (northern part of the Astrakhan region), a study was conducted on the cultivation of varieties and hybrids of onions of bulb domestic selection using growth stimulators against the background of mineral fertilizers with the isolation of the most promising for cultivation in an arid climate with a drip irrigation method.According to the results of the research work, a positive effect was achieved from the joint use of growth-stimulating drugs during the growing season and the background application of mineral fertilizers based on N180P60K60. The use of growth-stimulating drugs did not lead to the accumulation of nitrates in bulbs of varieties and hybrid. The most positive effect was achieved from the use of the new generation drug Novosil on the variety of onions Christina and the hybrid Bayram F1. So, for high-yielding samples, the water consumption coefficient was 60,8–63,8 m3/t. At the same time, the average mass of the bulb during the technical ripeness phase was in the range of 185,0–240,7 g.
Immunological aspects of the use of the polyenzymatic preparation “Flogenzym” in the treatment of neonatal diarrhea in calves
Authors: Skrigolovsky Nikolay Nikodimovich , Kalyuzhny Ivan Isaevich
Published: April 2023

The polyenzymatic preparation «Flogenzym» has immunostimulatory properties when used in the standard treatment regimen for neonatal diarrhea in calves. In case of immunological deficiency in young calves caused by diarrhea syndrome, the use of «Flogenzym» is accompanied by the strengthening of the main elements of the humoral and cellular immune response.
Plant raw materials for correction of reproductive function of cows
Authors: Shemuranova Natalia Aleksandrovna , Garifullina Natalia Arkadievna
Published: April 2023

The article presents data on the study of the effect of the supplement Lamarin Saldonum on the reproductive ability of highly productive cows. The experiment was conducted in the APC collective farm "Iskra" (Kotelnichsky district, Kirov region). The experiment involved cows of a black-and-white Holstein breed aged 2-5 lactation, with a milk yield of 7,500 kg for 305 days of the previous completed lactation, divided according to the principle of analogues into experimental groups O1, O2, O3 and control K4 (n=5). The additive was introduced into the ration of cows in groups O1, O2 and O3 30 days before the expected date of calving for 2 months (60 days) daily in doses of 0.3, 0.4 and 0.5 g/kg live weight per day respectively. It was found that the use of dietary supplements in these doses does not affect the duration of pregnancy of females and the timing of their arrival in the hunt after calving. However, it reduces the number of spermodoses spent per fruitful insemination by 7,69; 46,15 (p?0,01) and 23,08  % (p?0,05), the number of days from calving to fruitful insemination by 19, 65 (p?0,01), 38,24 (p?0,001) and 27,27 % (p?0,001), and period of infertility by 32,81 (p?0,01), 63,84 (p?0,001) and 45,54 % (p?0,001) respectively relative to group K4 (intact animals). According to the conducted studies, the most optimal dose for correcting the reproductive function of cows is an additive dose of 0,4 g per 1 kg of live weight.
Methodology for determining the internal forces of the tillage disk
Authors: Drobot Viktor Aleksandrovich , Brusentsov Anatoly Sergeevich , Chernyaeva Svetlana Olegovna
Published: April 2023

The strength and reliability of agricultural machines and implements is the basis of rational and timely agricultural production. The article considers the issues of the strength of the working bodies of tillage working bodies on the example of a tillage disk by determining internal stresses
Methods and means for managing moisture supply regimes during original potato seed growing in the context of global climate change
Authors: Kalinin Andrey Borisovich , Teplinsky Igor Zinovievich , Shpiganovich Pavel Mikhailovich
Published: April 2023

Obtaining high-quality seed material in soil-climatic zones favorable for the production of original and elite potato seed production requires placing production on clean phytosanitary territories in the high-mountainous, North-Western and Arctic regions of the Russian Federation, where there is a minimum number of carriers of potato diseases, moderate temperatures, and a sufficient level of moisture supply to plants. The statistics of weather observations show a steady increase in average air temperatures, as well as an increase in the amount of average annual precipitation with uneven precipitation. In intensive technologies used for the production of potato seeds, there is a significant over compaction of the surface and subsurface horizons of the soil, which leads to a deterioration in the moisture supply regime for plants, which significantly affects the yield and quality of seed material. The solution of this problem requires the improvement of technological methods and technical means used during potato seed production.
Determination of friction coefficients of sliding and rest of bulk organic fertilizers
Authors: Kokunova Irina Vladimirovna , Ruzhev Vyacheslav Anatolievich
Published: April 2023

It is possible to obtain high-quality organic fertilizers using the technology of accelerated (active) composting based on the use of technical means for aeration of compost piles. Fertilizers produced in this way are characterized by a significant content of nutrients in a form accessible to plants and have good flowability. The purpose of the research is to study the sliding and resting friction coefficients of bulk organic compost with different basic composition and the possibility of their application to the fields using technical means used for the application of mineral fertilizers. To determine the static and dynamic coefficients of friction, we have developed an original experimental installation equipped with electronic monitoring and measurement systems. Samples of compost with different basic composition were subjected to research. It was found that the largest sliding coefficient is characteristic of a sample taken from a burt consisting of cattle manure on a straw litter, the smallest sliding coefficient is possessed by a sample of sapropelemanure compost. It was found that for all the studied types of organic compost, the difference in the values of the sliding and resting friction coefficients is insignificant.
Technology for preparing silage in rolls with the use of biological and chemical preservatives
Authors: Maslova Oksana Aleksandrovna , Zhuzhin Maksim Sergeevich , Kuchin Nikolay Nikolaevich , Zhirnov Vladimir Anatolievich
Published: April 2023

The task of producing large feeds through the dissemination of modern technologies and the creation of a high-quality forage base is paramount for animal husbandry. The aim of the study is to study various biological and medical preparations and their complex use while maintaining the senate in the expanded, revealed in the film, to clarify its quality and safety. The scheme of the experiment provides for the use of benzoic acid and powdered sulfur for surface treatment in case of detection with biological preparations Biotrof and Biosil NN, as well as only with benzoic acid in searches with the preparation of haylage without preparations. For harvesting haylage, oriental goat's rue mixed with cereals is used. The laying of experimental batches of haylage is carried out under production conditions according to the generally accepted methodology of laboratory experiments. The quality of haylage was controlled by organoleptic parameters, acidity, content and ratio of acid fermentation. As a result of the research, it was found that canned haylage drugs have the best organoleptic characteristics characteristic of high-quality feed. The best effect of conservation was the combined treatment of silage powdered sulfur and lactic ferment Biosil NN. The use of these preparations increases the formation of butyric acid in the haylage, the dominance of lactic acid in the residues of acid fermentation (83.0%) has been identified, due to the fact that the feed is better acidified (pH=4.7) than haylage without consumption (pH=5, 38).  According to the result of a comprehensive assessment of the quality of haylage for all assessed indicators, this feed is applied to the 1st quality class, which to the greatest extent gives an assessment of ruminant tests.
Influence of the cutting blade shape on the technical hemp stalks slicing quality
Authors: Popov Roman Andreevich , Abramov Igor Lvovich , Tretyakov Sergey Andreevich
Published: April 2023

The article presents the results of in-depth scientific research, including cutting of technical hemp stems with a blade of various shapes and interference of the cut surface by non-contact optical profilometry. Three-dimensional images and characteristic profilograms of the cut surfaces of stems depending on the shape of the cutting edge are obtained. The parameters of the microgeometry of the cut surface and the optimal profile of the cutting edge are determined.
Influence of basic soil treatment and moisture supply on the structural elements of soybean harvest
Authors: Korzhov Sergey Ivanovich , Antipova Anastasiya Nikolaevna , Letuchy Aleksandr Vladimirovich
Published: April 2023

The article presents the results of studying the influence of methods of basic tillage and moisture availability on the elements of the structure of the soybean crop: the mass of seeds per plant, the number of beans and seeds per plant, the height of the plant, the weight of 1000 seeds and the yield of soybeans of the Volma variety, after winter wheat. It was found that on average in 2020-2022. Moisture conditions developed in such a way that among the main tillage methods, high yield structure and yield were obtained in the variant with plowing by 22-24 cm - 2.2 t/ha, slightly less yield was obtained by non-moldboard loosening by 22-24 cm - 2 0 t/ha, disking with a processing depth of 16-18 cm produced the least amount of grain - 1.9 t/ha. In addition, it was noted that the method of basic processing affects the amount and dynamics of moisture in the soil during the growing season. During the germination period, the largest moisture reserves were recorded on non-moldboard loosening, and the smallest - on disking. In the flowering phase, when soybean plants urgently need moisture to form a crop, the largest amount of it was in plowing, and the smallest - in disking.
Effect of a compound based on an aqueous solution of fullerene C60 on hematological parameters of white rats
Authors: Alekseev Alexey Aleksandrovich , Pudovkin Nikolay Aleksandrovich , Klyukin Sergey Dmitrievich
Published: April 2023

The article is devoted to the study of the effect of a compound based on an aqueous solution of fullerene C60 on the hematological parameters of white rats. The experiment was carried out on three groups of animals. The first group served as a control. The second group was injected with 1 ml of an aqueous solution of Fullerene C60 (1 mg / ml of DV), 150 mg of resveratrol – 25 mg, betoin hydrochloride – 10 mg. The third group received 1 ml of an aqueous solution of Fullerene C60 (1 mg/ml of DV), 2500 mg of resveratrol, 1000 mg of betoin hydrochloride. It was determined that the animals of the second group had a significant increase in the number of erythrocytes by 11.8% and the hemoglobin content by 14.8% relative to the control values. In white rats of the third group, there were no significant differences with the control. In animals of the second group, the number of rod-shaped neutrophils and monocytes increased by 10 and 9.3%, respectively, relative to the control. No significant differences were found in animals of the third group. The number of segmented neutrophils after the introduction of an aqueous solution of fullerene C60 increased by 12.4% (group 2 animals) and 6.1% (group 3 animals). It was revealed that the compound based on an aqueous solution of fullerene C60 has a pronounced effect on the hematological parameters of the body of white rats. The most effective dose was 1 ml of an aqueous solution of Fullerene C60 (1 mg / ml of DV), 150 mg of resveratrol – 25 mg, betoin hydrochloride – 10 mg, after administration of which an increase in the number of erythrocytes by 11.8% and the hemoglobin content by 14.8% relative to the control values, the number of rod-shaped neutrophils and monocytes by 10 and 9.3%, respectively, and the number of segmented neutrophils by 12.4%.
Indicators of endogenous intoxication in assessing the effectiveness of hepatosis therapy in cattle
Authors: Kuzminova Elena Vasilievna , Koshaev Andrey Georgievich , Abramov Andrey Andreevich , Semenenko Marina Petrovna , Dolgov Evgeny Petrovich , Kurtsevich Lev Viktorovich
Published: April 2023

The article presents the results of assessing the indicators of endogenous intoxication in the process of pharmacotherapy of hepatosis in cattle. Dairy cows (n=20) diagnosed with hepatosis were treated with flavobetin, which was used daily for a month at a dose of 50 g/animal per day. In the dynamics of therapy in cows, laboratory blood tests were carried out, on the basis of which it was found that during hepatosis disturbances in protein, carbohydrate and lipid metabolism were registered and the activity of hepatoindicator enzymes also increased. With liver dystrophy in the blood of cattle a higher level of markers of endogenous intoxication represented by medium mass molecules (MMM) of the relatively healthy livestock was revealed. Course treatment with flavobetin has a pronounced positive clinical and laboratory effect in hepatobiliary disorders in cattle. In the process of recovery there was a decrease in the level of endogenous intoxication in the body of cows, which was confirmed by a lower level of MMM in the blood. Determination of these markers of endotoxicosis may have prognostic value in monitoring the dynamics of the state of the liver and evaluating the effectiveness of drug therapy for hepatopathologies in cattle.
Morphological and biochemical parameters of the blood of the Kuibyshevskaya breed and the Kuibyshevskaya ? Dorper crossbreed
Authors: Molchanov Alexey Vyacheslavovich , Sklyarova Kristina Valerievna , Egorova Karina Alekseevna , Kozin Anton Nikolaevich , Sazonova Irina Aleksandrovna
Published: April 2023

This article presents a comparative characteristic of the blood parameters of Kuibyshevskaya breed rams and Kuibyshevskaya ? Dorper crossbreed rams at the age of one and four months. According to the results of the studies, the amount of formed elements and the level of metabolites in the blood of animals corresponded to the physiological norm. At the same time, there were differences between the study groups. It was found out  that crossbred rams had superiority in some blood parameters over purebred animals, which indicates a more intensive metabolism, and, presumably, a higher level of meat productivity in the future.
Evaluation of methods for overretained afterbirth expulsion in cows
Authors: Semivolos Alexander Mefodievich , Agoltsov Valery Aleksandrovich , Semivolos Sergey Aleksandrovich , Padilo Larisa Pavlovna , Tokarev Dmitry Nikolaevich
Published: April 2023

The article presents the results of the overretained afterbirth expulsion in cows. It was found out that retention of placenta is recorded in 39.04% of cows. Most often, incomplete retention of placenta was noted in 36.98%,  and complete one in 2.05%. The efficiency of afterbirth expulsion with uteroton was 58.82%, with metrostim and metrostim in combination with enroflon - 64.71%. Fertility of cows turned out to be the highest after intramuscular use of metrostim in combination with intrauterine administration of enroflon (76.47%) with the best insemination index (1.6±0.01). According to experimental studies, for a conservative method of  overretained afterbirth expulsion in cows, it is advisable to use a myotropic drug in combination with a drug that has a bactericidal effect on the microflora of the uterine cavity. This helps to accelerate the involution of the uterus, increase fertility and prevent the occurrence of various forms of endometritis.
Relações entre a escrita e a fala na primeira língua e sua influência no uso de Inglês como Língua Adicional
Authors: Rosa Rodrigo Garcia
Published: April 2023

Este artigo propõe uma discussão acerca das relações grafofonêmicas e fonografêmicas em português brasileiro, segundo as propostas de Capovilla e Casado (2014a, 2014b), para a avaliação da produção ortográfica (na escrita) e falada (na leitura em voz alta) de aprendizes brasileiros de inglês como língua adicional. Mais especificamente, é apresentada, por meio de uma reflexão que coteja a teoria supracitada, uma proposta de entendimento sobre as paralexias e paragrafias possivelmente encontradas na produção linguística de aprendizes de inglês. Com base nas relações entre a escrita e a fala (relações grafofonêmicas) e entre a fala e a escrita (relações fonografêmicas) do português brasileiro, discutem-se casos em que relações consagradas nesta língua podem afetar a produção da fala e da escrita de aprendizes de inglês.
El impacto del COVID-19 sobre la decisión de adquirir un bien inmueble en el área metropolitana de Monterrey
Authors: Bueno Torres Brenda Carolina
Published: April 2023

Este artículo presenta información y datos que son importantes de analizar para poder percatarnos del gran impacto que ha tenido la pandemia del COVID-19 dentro del mercado inmobiliario, específicamente al momento de tomar la decisión de comprar un bien inmueble. Sin duda alguna, el adquirir una propiedad es una de las decisiones más importantes que puede tomar cualquier persona, ya que invertir en el mercado inmobiliario le brinda seguridad para su patrimonio. El objetivo de esta investigación es poder evaluar el impacto que ha tenido la pandemia en el giro inmobiliario, así como validar que es lo que los clientes toman en cuenta antes de comprar y realizar su inversión. Para ello, analizan las diferentes variables que se obtuvieron por medio de un muestreo no probabilístico, enfocado específicamente en el área metropolitana de Monterrey, con el fin de poder concluir, con base en los resultados, si durante este tiempo de pandemia dichos clientes han optado por realizar una inversión. Como resultado, se encuentra que gran cantidad de personas efectivamente vio la pandemia como una oportunidad para invertir.
Análisis sobre la influencia del Proptech en las transacciones inmobiliarias del área metropolitana de Monterrey
Authors: Aranda Ramos Adriana , García Antonio Bianca Lizbeth , Sotelo Ahumada Héctor
Published: April 2023

La industria inmobiliaria está sufriendo una transformación digital no sólo en términos de espacios físicos, sino también en la forma en que se llevan a cabo las operaciones inmobiliarias. Este artículo se centra en analizar la influencia que recientemente ha tenido el fenómeno Proptech en las transacciones de inmuebles del área metropolitana de Monterrey (AMM). Para tal fin, se aplica una encuesta no probabilística de forma digital durante el primer semestre del 2022, a 101 posibles compradores, agentes de bienes raíces, diseñadores, inversionistas y desarrolladores inmobiliarios. Con la información recabada, se efectúan análisis estadísticos y un modelo de correlación de Pearson, para cuantificar el impacto que tiene el uso de Proptech durante la negociación de propiedades. Entre los principales resultados, se encuentra que el uso de dichas tecnologías ayuda a incrementar la tasa de conversión de ventas entre un 15% y un 30% y a disminuir, al menos, entre uno y quince días el tiempo promedio para concretar acuerdos, convirtiéndose en un potencializador de negociaciones.
Migración Temporal de Trabajadores: Visas emitidas en el Consulado General de Estados Unidos en Monterrey, Nuevo León México
Authors: Rositas Montemayor Juan Carlos
Published: April 2023

La presente investigación se realizó con el objetivo de identificar las características y puntualizar los factores que propician la migración temporal de trabajadores mexicanos hacia los Estados Unidos de América y, con ello, contribuir al conocimiento del fenómeno migratorio y su repercusión en el ámbito laboral tanto de Nuevo León, como de México. En virtud de que el Consulado de los Estados Unidos de América en Monterrey, Nuevo León, emite anualmente poco más del 57% de los permisos temporales de trabajo (H2) autorizados en el mundo (229 mil 186 permisos temporales de tipo H2), conocer las características de este conjunto de personas podría ofrecer información relevante para conocer las características de emigrantes potenciales. La manera de llevar a cabo esta investigación fue a través de la aplicación de una encuesta, con 22 reactivos, aplicada a 400 personas que buscaban obtener una visa de trabajo temporal para los Estados Unidos de América.  Los resultados obtenidos se muestran según las características personales de los encuestados, sectores con mayor ocupación, características laborales y razones para emigrar. Adicionalmente se detalla la importancia de los factores vinculados a la migración a través de una matriz de correlación, y se señalan cuales impactan en mayor medida la migración temporal de trabajadores mexicanos a los Estados Unidos de América.