bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of the genotype of breeding bulls on the quality of sperm production
Authors: Chetvertakova E V , Alekseeva E A 
Published: March 2021

Abstract
The article presents the studies carried out at JSC “Krasnoyarskagroplem” during 2012-2015 years. The object of research is breeding-bulls of red-mottled and Holstein breeds and their sperm production. We compared two groups of bulls, a red-mottled breed (n = 18 heads) and the Holstein red-and-white suit (n = 18 heads) at the age of 24.3 months at the beginning of the study. The quality of sperm production was evaluated in accordance with the current GOST 23745-79 “Undiluted freshly obtained sperm of breeding bulls”. The fertilizing ability of sperm was evaluated by the insemination index. The authors revealed the dependence of the quantitative and qualitative indicators of the seed on the breed of bulls. The period of bull’s sexual functions formation of the Holstein breed ends at the age of four. The period of bull’s sexual functions formation of the red-mottled breed ends at the age of five. The insemination index of red-mottled bulls is on average 1.3, in Holstein bulls it is 1.7. It confirms that the quality of the sperm is good. Breeding bulls with a low insemination index were identified, e.g., Discont 29590 of the red-mottled breed has index of 2.4, Kozir 1676 and Snaiper 1802 of Holstein breed have indexes of 3.9 and 6.03, respectively.
Age-related variability of indicators of protein metabolism in the blood of laying hens
Authors: Harlap S Yu , Kadirov N N , Gorelik L Sh , Meshcheryakova G V , Mukhamedyarova L G 
Published: March 2021

Abstract
Proteins are one of the most important indicators of blood. More than 150 individual whey proteins are currently known. However, an idea of the protein spectrum of blood can also be obtained on the basis of the concentration of total protein, albumin, globulins, the value of the protein coefficient, and the nature of their ratio gives an idea of the direction of protein metabolism (anabolic or catabolic), since the specificity of metabolic processes determines the productivity of layers. The concentration of total protein in the blood of chickens did not depend on the age of the bird, namely the period of the reproductive period, and hence the level of egg production. It fluctuated at the level of 37.2-42.0 g / l. Albumin concentration significantly increased during oviposition from 17.51 ± 1.71 to 21.36 ± 2.09 g / L. At the same time, the percentage of albumin in the total protein concentration increased from 47.07 ± 1.27 (26 weeks of age) to 53.93 ± 1.33% (p≤0.05) (80 weeks of age). The amount of globulins in the blood of hens did not depend on the age and duration of the reproductive period, but had a tendency to decrease, which was the result of a gradual decrease in the defenses of the bird’s body. The resistance of the body of laying hens decreases to the greatest extent at the age of 80 weeks, which causes an increase in Alb / Gl - coefficient by 1.51 times (p≤0.05) compared to the beginning of oviposition. The concentration of urea in the body of hens steadily increased during oviposition from 2.76 ± 0.18 (26 weeks of age) to 4.03 ± 0.11 mmol / L (p≤0.05) (80 weeks of age). The uric acid content in the blood of laying hens did not depend on the age and duration of the reproductive period and varied in the range of 0.39 ± 0.007 - 0.43 ± 0.002 mmol / L.
Pharmacological therapy of white muscle disease in lambs with selenium preparations in a comparative aspect
Authors: Semenenko M P , Grin V A , Kuzminova E V , Semenenko K A , Nepshekueva T S , Chernykh O Yu 
Published: March 2021

Abstract
In the course of the experiment on the comparative assessment of selenium-containing preparations selephlan and plexomin Se-2000 in the treatment of white muscle disease in young sheep, it was determined that selephlan has a more pronounced effect on the clinical and physiological state and intestinal biocenosis of lambs, their morphological and biochemical blood parameters, as well as the level of antioxidant protection of the body of animals. Under the influence of the preparation, the erythro- and hematopoiesis is activated in lambs, as well as the normalization of biochemical blood homeostasis. The level of enzymatic activity (AST, ALT, ALP, LDH) significantly decreases in 1.36 (p≤0.05); 1.71 (p≤0.001); 1.21 (p≤0.05) and 1.3 (p≤0.01) times, while the concentration of carotene increases in 3.1 times, vitamin E increases in 1.73 times and vitamin A increases by 26.8%. Selephlan helps to reduce the concentration of DC by 21.8%, KD – by 28.7%, MDA – in 1.61 (p <0.05) times.
Resource value aspects as an indicator for the technogenic landscapes phytocoenosis renewal
Authors: Nizkii S E , Muratov A A , Gavrilov Y A , Gavrilova G A 
Published: March 2021

Abstract
In the conditions of the southern taiga of the Amur Region in the gold mining areas after the cessation of work in the development of the recovery succession, there is a long period of time when there is no focus on zone type compliance. In place of spruce-fir forests, phytocoenosis is formed mainly by deciduous, low-value species. There is a risk that spruce and fir trees, an important resource for the economy, will be lost. Only after 70 years of self-recovery these species of trees appear on the dredge heaps. The aim of the studies is to study the regeneration succession and analyze aspects of the resource value of plant communities in dredge heaps in different recovery periods. It is proposed to use this analysis as an indicator of the focus of recovery succession in technogenic landscapes. This will make it possible to predict further development of phytocoenosis and to plan and carry out work to facilitate the processes of reforestation of valuable resources in taiga forests.
Determination of chronic toxicity of glyphosate by biotesting in laboratory mice
Authors: Shuvalova N E , Prutenskaya E A , Sulman M G 
Published: March 2021

Abstract
Glyphosate is the most promising herbicide currently used throughout the world. Glyphosate-containing preparations are also used as a desiccant in the pre-harvest period. Repeated processing of agricultural plants during the growth period and immediately before harvesting contributes to the accumulation of the herbicide in residual amounts in crops. The article presents the results of chronic intoxication of laboratory mice. It has been shown that glyphosate in residual amounts of 7, 14, 28 mg/kg is capable of causing quantitative and qualitative changes in formed blood cells, inhibits the functions of the reproductive system of experimental animals, and promotes changes in the structure of parenchymal organs. Experimental data indicate chronic toxicity of glyphosate at low concentrations.
Comparative assessment of the work of photosystem II in the leaves of soybean varieties and hybrids
Authors: Sinegovskaya V T , Dushko O S , Sinegovskii M O 
Published: March 2021

Abstract
The efficiency of PS II of soybean leaves was shown depending on the genotype of the variety, the phase of plant growth and development, and the intensity of their illumination in the field. Purpose of the work: to study the intensity of photosynthetic processes in soybean leaves using a MINI-PAM fluorometer to isolate highly active ones. The object of research was early maturing and mid-maturing varieties, white-flowered soybean hybrids. The efficiency of PS II (Y) with a sequential increase in the illumination intensity was determined in the early ripening variety Sonata and the mid-ripening Oktyabr 70. The most stable efficiency of PS II was in the leaves of the varieties Sonata and Oktyabr 70 at an illumination degree of ≈ 800 to 1500 μmol quanta m-2 s-1. The Sonata cultivar had a higher potential in the restoration of the photochemical activity of PS II. The dependence of PS II activity on the phase of plant growth and development was revealed. A high level of effective quantum yield of PS II (0.84 … 0.86 rel. units) during the growing season was noted in the leaves of new soybean varieties Kruzhevnitsa, Evgeniya, Persona and Kitrossa. Plants of the white-flowered collection had the maximum parameters of the quantum yield of PS II during the period of formation of reproductive organs. The data obtained allowed us to recommend the varieties Sonata, Kruzhevnitsa, Evgeniya, Persona, and Kitrossa, as well as hybrids KB (5) and KB (26) for inclusion in the breeding process, as they have a high level of PS II work, when creating varieties with increased photosynthetic activity.
Features of the microbiota of falconiformes birds
Authors: Konstantinov A V , Pimenov N V , Pavlova A V , Ivannikova R F 
Published: March 2021

Abstract
Anthropogenic transformation of natural biocenoses has an impact on ecological niches and zoocultives living in them. The number of domestic birds can now include many species of birds, one way or another changed by man, including birds of prey, protected and purposefully bred. Falconiformes occupied a special place in the cultural traditions of different countries and peoples. The paper considers aspects of biological transformation of falconiformes birds of prey species in the historical context. The results of screening studies of the microbiota of the pharynx and cloaca of falconiformes birds of aviary content (in formed third-degree zoocultives) are presented. The results of these studies reflect associative microbolometers and inapparently form of infection in birds. The data obtained indicate the potential risks of morbidity and infection with pathogenic bacteria in falconiformes under conditions of anthropogenic transformation.
Changes in the fertility of meadow-brown bleached soil with long-term use of different fertilizer systems
Authors: Berezhnaya V V , Kushayeva E J , Timoshinov R V , Klykov A G 
Published: March 2021

Abstract
The article presents the results of changes in the fertility of meadow-brown bleached soil in a long-term stationary experiment, laid down in 1941. It has been established that applying various systems of manure, lime, and mineral fertilizers in a single and double dose for 79 years improves the agrochemical soil properties. The content of organic matter in the variants of the manure-lime-mineral system with single and double doses of mineral fertilizers increased from 3.00% (control) to 3.11 and 3.21%, respectively. The phosphate regime of the soil improved when manure and lime were used together with mineral fertilizers in a doubled rate up to 137 mg/kg, and against liming with a single dose of mineral fertilizers up to 76 mg/kg, in the control variant - 15 mg/kg. Under the influence of lime and single norms of mineral fertilizers for wheat, the soil solution is deoxidized to a neutral value of 6.1, in the control variant without fertilizers the soil is subacid - 5.1. In the variant with the use of only double doses of mineral fertilizers, an increased yield of 4.8 t/ha and protein content of 13.8% in spring wheat was noted, in the control - 4.3 t/ha and 12.4%, respectively. The analysis of the correlation dependence of yield and protein per grain with a complex agrochemical property showed a strong direct relationship - r = 0.91; 0.78 respectively.
Bovine coronavirus: virus isolation, laboratory diagnostics and specific prevention
Authors: Mnikova L A , Ishkova T A , Alekseyenkova S V , Yurov K P 
Published: March 2021

Abstract
Diseases of young cattle of infectious etiology are the most important problem of cattle breeding. Among these diseases, the greatest economic damage is caused by diseases in calves of the digestive system, collectively called “neonatal diarrhea”. Numerous studies carried out in recent years have irrefutably proven that the main role in the occurrence of diarrhea in calves is played by rota-, coronaviruses, less often viral diarrhea-mucosal disease, as well as bacteria from the genus Escherichia (separately or in associations). These infectious agents cause a similar clinical picture of the disease; therefore only laboratory methods (detection of antigen in feces, organs, and tissues of sick or dead animals, as well as antibodies in the blood) are the basis for the diagnosis. Besides, with the help of diagnostic kits, it is possible to determine the presence of immunity to a particular disease and the need for vaccination. The article provides an overview of certified kits and vaccines for the diagnosis and prevention of coronavirus infection in cattle and discusses the benefits of a comprehensive regimen of their use.
Plant regeneration of Amomum tsaoko Crevost & Lemarié in vitro
Authors: Quyet Khuat Van , Hai Nguyen Thanh , Lam Hai Nguyen Thi , Thu Hang Pham Thi , Kirakosya R , Kalashnikova E 
Published: March 2021

Abstract
Cardamom (Amomum tsaoko Crevost & Lemarié) is a valuable medicinal herb in both traditional and western medicine. The pharmacological properties of the A. tsaoko seeds make it a useful cure for such ailments as abdominal pain, bloating, hiccups, vomiting, diarrhea, malaria, bad breath, and tooth decay. It has even further value for its use in food processing. Therefore, it is necessary to develop protocols that reduce the time required for the multiplication of cardamom using tissue culture techniques. The research was conducted to initially build up the process of in vitro propagation of cardamom from the rhizome buds. An 8 minutes treatment of HgCl2, with a concentration of 0.1%, is the most efficient for the disinfection of the rhizome buds, resulting in the rate of the disease-free survival explants reaching 18.29%. MS medium supplemented with 1.0 mg/l BAP is the most suitable medium in the fast multiplication phase, with a multiplier of 4.54 shoots/explant, average shoot height of 5.45 cm, and good shoot quality after 6 weeks of culture. A suitable rooting medium for cardamom invitro-shoots was MS medium supplemented with 0.5 mg/l IBA with a rooting rate of 100%, the average number of roots was 5.6 roots/shoot and the average root length was achieved 6.2 cm, after 8 weeks of culture.
Physiological changes in the body of young cattle when the feed additive “Bacitox” is introduced into their diet
Authors: Mal G S , Makhova A V , Makurina O N , Tkacheva E S 
Published: March 2021

Abstract
The experience of continuous intensification of animal husbandry accumulated by modern science confirms the need for further improvement of feeding schemes for young and adult cows. In this regard, it is of great importance to continue to optimize the enrichment of their diets with complexes of special feed additives. The systematic consumption of balanced feed additives by young animals largely compensates for the lack of plastic and regulatory substances in their body and stimulates the course of all physiological functions and biochemical processes. The inclusion of the feed additive “Bacitox” into the diet of growing heifers made it possible to effectively increase the energy nutritional value and minimize the risk of ketosis in animals. We can say that the use of this additive can increase the average daily gain in live weight in growing heifers with a decrease in the level of feed costs. The use of “Bacitox ” stimulates their growth in growth energy. In the heifers of the control group, who did not receive this feed additive, the main indicators taken into account were in a less functionally advantageous state. This indicated a lesser intensity of their viability and productivity, thereby demonstrating the undoubted advantages of using the feed additive “Bacitox” in young cattle.
Physiological reaction of blood counts in lactating cows to the use of catosal
Authors: Zavalishina S Yu 
Published: March 2021

Abstract
In modern conditions, it is imperative to intensify livestock raising with an active search for reserves to increase the productivity of this industry. An important reserve for increasing the productivity of lactating cows is considered the use of various biological stimulants. Their effect is largely associated with the stimulation of the main hematological parameters. As a result of the use of catosal for six weeks at a rate of 20.0 ml per head per day, it was possible to achieve very physiologically beneficial changes in the biochemical and morphological parameters of blood in lactating black-and-white cows. The results obtained can be regarded as manifestations of positive changes in the metabolism of these animals developing against the background of catosal. The development of the found changes in the hematological parameters taken into account under the influence of catosal should be considered very favorable for the further course of lactation in the observed cows and contributing to an increase in their milk yield. In this regard, the drug catosal can be regarded as promising for further research on biological stimulation of lactating cows.
Effect of natural salt solutions on grass- wheatgrass association phytomass
Authors: Vlasenko O A , Ul’yanova O A , Kurachenko N L , Kazanova E Yuyi 
Published: March 2021

Abstract
When spraying a herb-wheatgrass association, it was found that there was no toxic effect on phytomass 20 and a 40% solution of the natural salt of the Troitskoye deposit at a dose of 30 ml/m2. A solution of natural salt at a dose of 300 ml / m2 at a concentration of 20% has a partial toxic effect on some plant species, which manifests itself in the death of aerial organs within 24 hours after spraying. A solution of natural salt at a dose of 300 ml / m2 at a concentration of 40% has a toxic effect on most species of forbs, manifested in the drying and death of aerial organs within 24 and 72 hours after spraying. Leaves of creeping wheatgrass (Elytrígiarépens) were highly resistant to the action of natural salt. Within 30 days after spraying, overgrowth of aerial organs occurred in all variants of the experiment, which indicates the absence of the effect of natural salt solutions on the root systems of plants during surface treatment.
Assessment of the Impact on the Natural Environment of the Taldykorgan Basin
Authors: Kanagatov Zh Zh , Seitova G A , Butenova A K , Bukenova E A , Tokanbaev A E 
Published: March 2021

Abstract
In his address, President of the Republic of Kazakhstan N. Nazarbayev to the people of Kazakhstan “New opportunities for development in the conditions of the fourth industrial revolution”, noted that today the world is moving to the era of the Fourth industrial revolution, a stage of deep and dynamic changes in the technological, economic and social spheres. The article deals with the issues of water resources protection to strengthen the competitiveness of Kazakhstan in the conditions of the fourth industrial revolution and the transition to a “green economy”. The dynamics of pollution of the Taldykorgan region’s water basin is studied, and the ecological zoning of the territory is given.
Study of the morphological composition of municipal solid waste in the Perm region
Authors: Sereda T G 
Published: March 2021

Abstract
The article describes the research of the morphological composition of municipal solid waste (MSW) in the Perm Territory during the period of self-isolation associated with SARS-CoV-2. It has been substantiated that the indicator of the morphological composition of MSW is decisive in the field of MSW management and determines the choice of the most acceptable method of waste disposal. Despite the growing interest in technologies for sorting and processing MSW, the most common method in Russia is waste disposal by soil methods - waste disposal at MSW landfills, which can pose a threat to the environment, since At many MSW disposal facilities, anti-seepage screens were not initially provided, there are no insulating backfills, many facilities are used beyond the design period. Experimental studies of the complex (morphological) composition of MSW were carried out in two settlements of the Perm Territory with a population of over 500,000 and a population of less than 300,000. The research methodology and tools are presented. The percentage of utilized components in the studied samples in the spring and summer seasons was calculated and the classification of the components according to the degree of biodegradation at MSW landfills, as well as the percentage of MSW components after the extraction of waste suitable for recyclable materials transported to the MSW landfills according to the research results. The percentage of the reduction in the penetration of hard-to-decompose and conditionally non-degradable fractions of MSW at the MSW landfills of the Perm Territory was calculated. Therefore, the purpose of the research was to study the morphological composition of MSW in the Perm Territory during a pandemic and to determine the percentage of components suitable for recyclability in the studied MSW samples by seasons (spring and summer seasons of 2020).
Hydrological regime and runoff formation of the Chulym river and its analysis
Authors: Vinogradova L I , Ivanova O I 
Published: March 2021

Abstract
One of the main problems of hydrology is the formation of rainfall floods and the assessment of the hydrological regime of rivers. Analysis of the factors of river runoff formation helps to calculate the main hydrological characteristics even in the river sections not illuminated by field data. One of the regional methods for calculating hydrological characteristics is the calculation of the dependences of runoff characteristics on the physical and geographical factors of the catchment area. Such calculations are based on the results of generalizing the data of hydrometeorological observations in the design area. There is often a need for runoff characteristics in the design section of the river where there are no field data of hydrometric observations, and this problem is considered in the proposed study. This is the first time this approach has been implemented for the Chulym River. This article examines the analysis of the factors of the river runoff of the Chulym river, which makes it possible to make objective calculations of the main hydrological characteristics in the sections of the rivers not illuminated by field observations.
Hydrological characteristics of snow melt erosion areas in the Krasnoyarsk forest-steppe
Authors: Golubev I A , Burakov D A , Kozhukhovsky A V 
Published: March 2021

Abstract
Hydrological factors determine the features of relief formation in all territories where surface runoff is formed. They determine the degree of ruggedness and the nature of the relief. Changing from year to year, they interact with the underlying surface, activating the processes of erosion and planar flush of the fertile topsoil on it. The need to model and determine their intensity in different periods is due to the annual use of these territories for agricultural needs, during their plowing and sowing. The article analyses the main characteristics of surface runoff on the territory of the Krasnoyarsk forest-steppe. The result of hydrological and geomorphological analysis of the catchment area in the key study area is presented. The main indicators of autumn soil moisture are characterized and their effect on the washout of the solid fraction within the key site Dolgiy Log is estimated.
Air pollution in Penza and its impact on the human health
Authors: Mamelina T Yu , Vel’dina Yu V 
Published: March 2021

Abstract
Atmospheric air is a vital component of the natural environment, an integral part of the habitat of humans, plants, and animals. Atmospheric air is the most significant component (factor) of the human environment, the pollution of which the impact on human health and all living things is most pronounced. Most large cities are characterized by extremely high and intense air pollution compared to small towns and villages. On the majority of polluting agents, and there are hundreds of them in the city, it is possible to tell with confidence that they, as a rule, exceed maximum permissible concentrations. We will consider the city of Penza as an example.