bluuebunny/crossref_metadata_2025_split huggingface dataset:
The influence of natural geochemical provinces on the drinking water quality and the public health risk formation
Authors: Kleyn S V , Zaitseva N V , May I V , Glukhikh M V , Aristov V A 
Published: September 2020

Abstract
The high content of chemical elements in the sources of drinking water in addition to anthropogenic contamination may be due to the presence of the source in a particular geochemical provinces, creating the initially high background levels of chemicals of concern in water. It was found that among 14 geochemical provinces of Perm region in 4 there was the excess of the maximum allowable concentrations in water sources: the manganese to 2.3 MAC and strontium to 17.0 MAC. It is shown that, despite the use of modern methods of water treatment used in the economic activity and for the purpose of drinking water, in drinking water after treatment manganese, fluorine, strontium, beryllium and Nickel exceeding to 20.0 MPC, substance characteristic water sources within the boundaries of the geochemical provinces, are recorded. The event production control does not always include a program of sampling on the specific geochemical provinces of the substance, such as boron, bromine, barium, etc. In the course of the assessment of health risk from consumption of drinking water from sources located within the boundaries of geochemical provinces obtained that the coefficients of the danger (HQ) exceeded the acceptable level to 2.2 times for a number of substances, and the hazard index (HI) of health disorders exceeded the permissible level up to 2.5 times. The total contribution of the typical geochemical provinces of substances has reached 100,0 % for some organs and target systems.
The main technologies of protection against corrosion of the body and welds of LADA VESTA and LADA LARGUS cars used in agricultural production
Authors: Skryabin M L 
Published: September 2020

AbstractProtection of passenger cars involved in agricultural work and maintenance of agricultural machinery from corrosion contributes to accident-free and long-term operation. A special feature of passenger cars used in agricultural production is the seasonality of its use. The durability of the body, the most expensive element of the car, during normal operation is regulated by the corrosion resistance of the panels. The most susceptible to corrosion are the wings, sills, underbody, and wheel arches. The article deals with the main models of «AVTOVAZ» cars and methods of applying paint coatings to the elements of body parts. The advantages and disadvantages of cataphoresis and anaphoresis coatings are also considered.
The formation of soot in the cylinder of a diesel engine when operating on methanol-containing motor fuel
Authors: Chuprakov A I , Anfilatov A A , Chuvashev A N 
Published: September 2020

AbstractThe chemistry of the formation of soot particles in a cylinder of a diesel engine when working on alternative motor fuel in the form of an emulsion containing methanol alcohol is considered. One of the most dangerous toxic components of liquid fuel combustion products is soot. Therefore, it is necessary to find ways to reduce its content. To do this, you need to know the methods and stages of soot formation, which affect the final concentration by weight. The most important task can be called the determination of the prevailing mechanisms of the appearance of soot in the combustion of liquid fuels in the cylinders of engines. A variable zonal model of soot formation in a 4 H 11.0 / 12.5 high-speed diesel engine is presented when working on an alternative emulsified alcohol fuel - methanol-fuel emulsion. The stages of the formation of carbon particles during the oxidation of fuel inside the cylinder are considered.
Application of ethanol fuel emulsion in diesel engines
Authors: Likhanov V A , Chuvashev A N , Chuprakov A I 
Published: September 2020

Abstract
The article analyzes experimental data obtained during bench tests of tractor diesel 4CH 11.0/12.5 using alternative fuelethanol. Ethanol was supplied to the diesel cylinder as part of an emulsion, this method allows for minor modifications of the diesel fuel system to use alternative fuel with a sufficiently high efficiency. In the Vyatka state agricultural Academy on the basis of the Department of heat engines, cars and tractors, a diesel engine was developed to work on ethanol-fuel emulsion. The article substantiates the possibility of establishing the maximum permissible concentration of ethanol in the emulsion for this diesel, it is 25% of the total fuel and provides sufficient conditions for the organization of a stable combustion process without skipping ignition. The article presents experimental studies of the working process of diesel when working on ethanol-fuel emulsion, which were brought to the maximum.
Autoimmune thyroiditis with systemic idiopathic fibrosis in horses
Authors: Smolentsev Sergey Yu , Gasanov Alizade S , Zukhrabov Mirzabek G , Zukhrabova Zulfiyat M , Shorkina Olga I , Mukhutdinova Dina M , Shageeva Alfiya R 
Published: September 2020

Abstract
The article deals with the autopsy materials of the Friesian breed domestic horse (Equus ferus caballus). It presents the research on tissues’ and organs’ histological examination as well as materials from the case record. New nosology for this species and breed has been revealed for the first time for the animal under examination. It was chronic inflammatory thyroid disease of the autoimmune genesis in the hyperthyroid stage which caused the systemic idiopathic fibrosis. Previously this nosology was neither revealed nor described in the Russian and foreign literature sources. The article presents materials from the case record where animal’s clinical condition has been assessed. The description of pathoanatomical and morphological changes in the thyroid tissues in the detected autoimmune thyroiditis and associated pathological processes in the organs and tissues of the studied animal was given. The systemic idiopathic fibrosis associated with thyroiditis condition was described. The features of the blood serum metabolic profile according to the enzymes content, substrates and minerals were presented. The assessment of the thyroid gland endocrine status of total thyroxine (tT4) and total triiodothyronine (tT3) has been made. The level of which was 184.0 nmol/l and 7.9 nmol/l respectively. The data indicating the presence of an autoimmune process in relation to thyroid antigens have been traced. The level of antibodies to thyroglobulin and antibodies to thyroperoxidase was 9.7 IU/ml and 98 IU/ml respectively.
Effects of crop rotation, pesticides and fertilizers on wheat seed contamination with seed-borne Fusarium pathogens
Authors: Keler V V , Khizhnyak S V , Eskova E N 
Published: September 2020

Abstract
The effects of previous crop, fertilizers and pesticides on wheat seed contamination with seed-borne Fusarium pathogens were studied in field experiment. It was found that the Fusarium incidence statistically significantly depend on the previous crop. In case of wheat as the previous crop average Fusarium incidence was 65.0%. Fallow based crop rotation reduced average Fusarium incidence to 54.2%. Applying pesticides during vegetation statistically significantly reduced incidence of Fusarium from 76.7 to 53.3% in case of wheat as the previous crop but was not effective in case of fallow. Fertilizers significantly reduced incidence of Fusarium from 68.3 to 40.0% in case of fallow but had no effect in case of wheat as the previous crop. Basing on the results of our experiment we can recommend the use of fallow in crop rotation scheme as a way to reduce contamination of wheat seeds with seed-borne Fusarium.
Virological research as an integral part of complex monitoring of fish diseases
Authors: Zavyalova E A 
Published: September 2020

Abstract
In the early 2000s, there were no russian test systems for detecting fish viruses, the work was carried out in cell cultures and in the neutralization reaction, which is effective, but the result was obtained no earlier than 10 days, simultaneously with the release of the virus in the cell culture, which undoubtedly increased the time of diagnosis. In 2009, the addition of existing methods to polymerase chain reaction and enzyme linked immunoassay methods made it possible to detect not only open forms of the disease, but also virus carriers, which is the most important information in the organization of cross-border transport of hydrobionts. Systematic comprehensive diagnostic studies in fish farms have allowed us to get a clear idea of the epizootic situation and identify areas of trouble for viral fish diseases and take timely measures to stop the disease.
Biodiversity: structure, problems and conservation prospects
Authors: Petrisheva T Yu , Morgacheva N V 
Published: September 2020

Abstract
Conducting multi-year integrated monitoring research is important for biodiversity conservation. Results of such research are defined by not only discovery of wide range of rare or endangered plant species but also identification of locations with predominance of these species but not having conservation status. All these are necessary for clear organization of nature conservation system that intends to conserve biodiversity of the whole flora. The conduct of the work on identification of flora samples of different rarity category must be started in the specific locations and regions. Consolidation of the obtained results through the establishment of database will enable to see the whole problem that will relieve further measure development for specific species conservation, their population and will allow maintaining ecosystem balance on the whole.
Changes in humus content in sod-podzolic soils as a result of agricultural use
Authors: Zamyatin S A , Efimova A Yr , Maksimova R B , Maksutkin C A , Zolotareva R I , Maksimov V A , Zamyatina T G 
Published: September 2020

Abstract
The purpose of the research is to study the effect of long-term application of fertilizers on the dynamics of humus in the sod-podzolic medium-loam soil of the Republic of Mari El. It was found that in the control grain-grass crop rotation on the natural soil fertility for 24 years, the humus content in the soil gradually decreased. By the end of the second rotation, it decreased by 0.03%, in the third-by another 0.08 % and the fourth-by 0.02 %. The content of humus in the soil of the first fruit-bearing crop rotation decreased even more intensively than in the control. In 2001, the content of humus in the natural soil fertility decreased by 0.05% compared to the initial state. In 2007, at the end of the second rotation, humus in the first crop rotation decreased by 0.09…0.10 % from the initial state. In 2013 - by 0.16…0.17 %. The lowest humus content- 1.55 % for all the time of research was in the soil of the first fruit-bearing crop rotation at the end of the Quad rotation against the background of natural soil fertility. The difference compared to the initial state in this variant was -0.17 %. The highest humus content was in the soil of the second crop rotation, where rotted manure was applied under potatoes-80 t / ha. By the end of the first rotation, the humus content in the soil of the crop rotation increased by 0.03…0.04 %. By the end of the second-by 0.11% relative to the first rotation, the third-by 0.10…0.12 %, the fourth-by 0.20…0.21 %. Against a background without fertilizers, the humus content was always higher than when using N60P60K60. The most stable humus content was in the soil of the third crop rotation. In this rotation of six fields, two fields were under perennial legumes. During three rotations, the content of humus in the soil in this crop rotation was within the range of 1.72…1.74 %. Only after the fourth rotation, the humus content decreased to 1.70…1.73 %.
The impact of the Chimaphila umbellata (L.) W.P. C.Barton extract on the immune response in animals
Authors: Kusheev Ch B , Kutaev E M , Lomboeva S S , Khobrakova V B , Pavlov S A 
Published: September 2020

Abstract
With the water-alcohol extraction method was obtained liquid extract from Chimaphila umbellata (L.)W.P.C. Barton. Experimental studies on the azathioprine immunosuppression model showed a pronounced opposition to the development of a secondary immunodeficiency state under the influence of 14-day course use of a dealcoholized extract of the aerial part of Chimaphila umbellata (L.)W. P.C.Barton. The results of the humoral state assessment and cellular link of the immune response in F1 line laboratory mice (C57B1 / 6 × CBA) indicate that the plant extracts: 1. Restores the immune status by the delayed-type hypersensitivity reaction to 85.6%, with 100% in the intact control and 69.9 in the control - azathioprine. 2. Influences the number of antibody-forming cells, significantly increasing their absolute value by 2.36, and the relative - by 1.84 times in comparison with control-azathioprine. The immunocorrecting activity of umbellata wintergreen Chimaphila umbellata (L.) W. P. C.Barton extract is consistent with previously obtained results on the study of antipyretic, analgesic, antimicrobial, and wound healing anti-inflammatory effects.
Ascarids infestation of captive big cats (Felidae) in zoos
Authors: Panova O A , Khrustalev A V 
Published: September 2020

Abstract
Parasitological studies are an important part of veterinary control when keeping wild and endangered species of animals in captive breeding. For three years we watched felines (Felidae) in zoos In 49.2% of feces samples, nematodes were found: Toxascaris leonina and Toxocara cati. Infection with toxascaris in half of the snow leopard (Uncia uncia), all cheetahs (Acinonyx jubatus) and one puma (Puma concolor) was recorded regularly during 3 years of research, T. leonina eggs were found in the soil of the enclosures of these animals. This allows to talk about a stable area of invasion. The most probable way of introducing T. cati nematode into the animal population of the zoo with an animal brought from the wild was noted. Measures for the complete rescue of the territory of zoos and animals from ascaridids require an integrated approach and further improvement.
Arctic high-mountain, steppe and nemoral species in the Angara-Chun interfluve flora
Authors: Yuzefovich F S , Tupitsyna N N 
Published: September 2020

Abstract
The article describes the species that are common in the Angara-Chun interfluve (Central Siberian Plateau) - pliocene steppe and nemoral, pleistocene glacial and steppe, most of which are characterized by: a disjunctive range with no anthropogenic causes; the rarity of the species; small number of individuals, spatial limitation; shrinking habitat; disharmony with modern conditions. Nemoral relict species on the territory of the Angara-Chun interfluve are within the range, or on its northern or northwestern border. For species, region-zone confinement, chorological group, occurrence, abundance according to O. Drud are indicated.
Etiology and diagnosis of the gastrointestinal and respiratory diseases of calves in the farms of the Vologda region
Authors: Makarova V N , Badeeva O B , Simanova I N , Korukina M V 
Published: September 2020

Abstract
The article reflects the statistical, bacteriological, virological and molecular genetic research results. In 2019, the proportion of gastrointestinal pathologies in the total incidence of young animals was 37.6 + 0.7%. On average, over the past five years, 46.6 + 0.7% of born calves have been ill. Gastrointestinal diseases are recorded mainly in young animals under the age of 3 months. Of the number of cases, 43.3% die from birth to 10 days, 31.7% from 11 to 30 days, and 15.8% of calves from one to three months. The proportion of infectious diseases is 0.36% of the total incidence of animals. 152 studies were carried out, including: 39 fecal specimen by ELISA, 30 molecular genetic (PCR), bacteriological - 83 samples of biomaterial from dead and sick animals. 107 microorganism cultures have been identified. According to the ELISA, the most frequently detected antigens were causative agents of coronavirus - 33.3%, rotavirus - 30.8%, the causative agent of viral diarrhea - in 15.4% of cases. In 96.8% of cases, the causative agents of viral infections were identified in the associations: coronavirus and rotavirus (43.3%), coronavirus, rotavirus and viral diarrhea (36.7%), coronavirus and viral diarrhea (20.0%). In 22.2% of the samples, PCR was used to detect the herpes virus type 5 gene in rinses from calves’s nasal cavity. As a result of bacteriological studies, a change in the spectrum of cultures of microorganisms isolated from pathological material was noted. The percentage of unidentified crops decreased by 2.6 times. Given the results, we propose to include in the scheme of diagnostic studies for mixed infections additional studies: feces for viral infections by ELISA; crops of primary pathological material and feces should be carried out additionally on accumulation media; PCR analysis of swabs from the nasal cavity, blood; during bacteriological examination, consider the allocation of microorganisms: Pseudomonas, Streptococcus, Staphylococcus.
The effectiveness of belmin in feeding of female arctic foxes (Vulpes lagopus L.) to increase reproductive functions
Authors: Beketov S V , Toporova L V , Gryaditskaya L V , Ruchkina Z S 
Published: September 2020

Abstract
The article presents the results of tests of protein-organic additives on pregnant female Arctic foxes. The criteria for assessing the impact on the productivity of females of arctic fox and the number of missing, poor and disadvantaged females gave birth, fertility, the number of mothers who are good reproduction, number of stillborn puppies, preservation of offspring before registration and the number of puppies in terms of the main female. During the experiments, it was found that the inclusion in the number of pregnant females should be 1,5 grams per day, which leads to a decrease in the number of stillborn puppies and, with, as a consequence, an increase in the number of young animals to be deposited.
Mobile humus response of alluvial dark humus soil in the Krasnoyarsk forest-steppe for vermicompost application
Authors: Ulyanova O A , Butenko M S , Rechkin I A , Zhulanova V N , Martynova O V 
Published: September 2020

Abstract
The paper studied the vermicompost effect on the humus content and its mobile forms in alluvial dark humus soil in the conditions of field experience in potato cultivation in the Krasnoyarsk forest-steppe. The tendency to increase the soil humus content under the action of vermicompost is shown. The use of the latter helped to strengthen the process of humification and the stable structures formation, thereby ensuring the stable humus state.
The effect of unconventional mineral mixtures on the nutrient digestibility of broiler chicken feed
Authors: Tyurina L E , Tabakov N A , Lefler T F , Turitsyna E G , Volkova A G 
Published: September 2020

Abstract
The article presents the results of the influence of the mineral mixture using local raw materials on the physiological parameters of broiler chickens of “Ross 308” cross. The studies were conducted on the basis of YeniseiAgroSoyuz LLC of the Sukhobuzim district of the Krasnoyarsk Territory, and the stock-raising farm of the Institute of Applied Biotechnology and Veterinary Medicine of FSBEI HE Krasnoyarsk State Agrarian University. The aim of the research was to study the effect of the mineral mixture using local raw materials in feeding broiler chickens. It has been found that a mineral mixture containing limestone, monocalcium phosphate, oxidized brown coal, belite sludge, peat, and vermiculite improves the nutrient digestibility of broiler chicken feed.
Studying the diet of wild reindeer (forest subspecies) (Rangifer Tarandus L.) in the territory of the Middle Yenisei taiga
Authors: Kochkarev P V , Zarubin D S , Maslova E S 
Published: September 2020

Abstract
Despite the big number of studies dedicated to the nutrition of the wild tundra reindeer, there are hardly any data found in Russian or foreign literature on the nutrition of the forest subspecies of the wild reindeer in the Middle Yenisei taiga. The studies carried out in the zone of overlapping winter habitats of the forest and tundra reindeer are of special interest. Since the research covered the territory of a special protected natural area, it was decided to use the non-invasive method of coprological cuticular analysis. As a result of the compositional analysis of the March reindeer faeces, some fragments of the flowering plants, lichens and mosses were found in the collected samples. As a result, it was found that in March and April the main fodder of the reindeer residing in the territory of the Middle Siberia were the flowering plants of the Cyperaceae, Poaceae, and Equisetum families.
The issue of the change of the climatic conditions of the Rostov region of the Russian Federation
Authors: Zhidkova A Y , Zarubina R V , Panova V A , Saenko N M 
Published: September 2020

Abstract
The study raises an urgent and important problem of the climate change. The research area is the Rostov region of the Russian Federation. The paper considers the features of the change of the climatic conditions of the region and assesses the consequences. The dynamics of the average monthly temperature in January and July in Rostov-on-Don, as well as its average annual precipitation from 1970 to 2019, is analyzed. The research is based on the weather chronicle of the Rostov region. Over the past 60 years, there had been a steady increase in the average monthly temperatures. The work also considers the issue of desertification processes in the study area, its impact on human life activity.
Methods of creation and characterization of specialized quail meat breed
Authors: Anshakov D V , Royter Ya S , Degtyareva T N , Degtyareva O N 
Published: September 2020

Abstract
The work was performed in the Gene Pool LLC of the Moscow Region. The goal was to create meat quail adapted to the feeding and keeping conditions traditional for Russia. The initial genetic material was the pharaoh and Texas white breeds, which are stored in the bioresource farm collection. As a result of reproductive crosses of birds of these breeds, individuals with almost white plumage color and satisfactory productive indicators were isolated. To increase the efficiency of poultry breeding during the selection of quail of this group, complex polygenic constructions of quantitative characters were used, linking them with the adaptive ability of the bird at the stages of growth, development and productivity. This allowed to improve the meat form of physique for 11 generations of selection, increase the live weight of quail at the slaughter age by 26.1%, increase the yield of quail from the laying hen by 8.3%. Comparative tests showed that the cost of production from the created poultry was lower than that of the original breeds: Pharaoh by 32.9%; Texas White - 12.0%. The breed was called Radonezh (patent No. 6999), the bird is recommended for breeding in industrial, farming and individual subsidiary farms of the population.