bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dependence of the number of potato minitubers on the method of planting micro-plants
Authors: Filippova S , Eliseeva L , Turbina E , Prokopyeva M , Selivanov A 
Published: March 2021

Abstract
Research is devoted to the study of the dependence of the number of mini-tubers of potatoes on the method of planting micro plants. Four ways of placing micro-plants of seven Russian varieties were studied: in pots made of cassettes and test tubes and in beds made of cassettes and test tubes. The method of planting micro-plants had an impact on the safety of plants, it was higher when planted from test tubes in beds 93.3-100 %. For all the studied varieties, with the exception Of the Samba variety, the most preferable was planting micro-plants in pots for seeding, in which there was an increase in the yield of mini-tubers. To get the largest number of mini-tubers of potatoes of the optimal fraction, plants of the meteor, Courtney and Reggae varieties should be grown in seedling cassettes before planting in pots, and plants of the Zumba and Salsa varieties should be planted directly from tubes. Plants planted in pots from seedling cassettes formed the smallest leaf area. The dependence of the mini-tubers on the leaf area was established for potato varieties meteor, Samba and Gulliver. The conducted research indicates the need to study the method of planting micro plants for each variety in order to determine the most optimal one, which allows increasing the yield of mini tubers.
A blood parameters comprehensive study in pigs with the microencapsulated probiotic preparation Antispin with the enzyme use
Authors: Trubnikov D V , Gorobets A Yu , Trubnikova E V , Kartashov M I , Belous A S 
Published: March 2021

Abstract
The article presents the haematological and biochemical blood parameters studies data obtained during the production test of the microencapsulated probiotic preparation Enzimsporin with an enzyme (crystalline trypsin) on Genesus genetics pigs in the fattening process. Data from three groups were analyzed: experimental group (microencapsulated Enzimsporin with enzyme), control group No. 1 (commercial non-encapsulated Enzimsporin) and control group No. 2 (without adding Enzimsporin to the feed). A general blood test showed that in animals receiving microencapsulated Enzimsporin with an enzyme, the erythrocytes and haemoglobin content reaches the upper physiological limit, which is significantly higher than in the control groups. When determining the blood biochemical parameters, a significant increase in the total protein and albumin amount in experimental animals was revealed by the 148th day of life. Reliably high glucose levels, within the physiological norm, were observed in animals receiving Enzimsporin, while in animals receiving the microencapsulated drug, the glucose level was significantly higher than in those receiving its unencapsulated form. The change in the trace elements level in the experimental animals’ blood showed regularities associated with an increase in the calcium amount and a decrease in phosphorus and magnesium. At the same time, an increase in the level of AST and ALT in the animals’ blood receiving Enzimsporin with an enzyme was noted by the 148th day of life. The observed immunoglobulins reliably high level throughout the experiment in experimental animals in comparison with control indicates a high resistance and pigs immune status.
Twinkle artefact diagnostic role when having dogs and cats’ digestive system ultrasonography
Authors: Tcygansky R A , Nekrasova I I , Shulunova A N , Sidelnikov A I , Horishko P A 
Published: March 2021

Abstract
The article is devoted to the description of the Doppler twinkle artefact recorded during transcutaneous ultrasound examination of dogs and cats’ alimentary canal and characterization of its clinical significance. The object of the study are dogs of different ages and different breeds (45) and cats (53). Ultrasound was performed on SonoAce R7 scanners (Samsung Medison Co., Ltd., Seoul, South Korea) and SIUI Apogee 1100 (Shantou Institute of Ultrasonic Instruments Co., Ltd., Guangdong, China) according to the standard technique using multifrequency convex and linear sensors with frequencies of 3.5-12 MHz. Reproduction of the twinkle artefact in the model was carried out using a plastic container with water in which objects with different densities and interfaces were placed. The characteristic of the “ twinkle artefact ” in Doppler scanning modes which we register only in pathology is given. In 14.7% of cases it was recorded on the surface of foreign bodies of the small intestine. When the artefact was reproduced in the model and it was established that it appeared on objects with a rough surface and high reflectivity. Also “twinkle artefact ” is described with hepatic parenchyma focal area of mineralization.
Coenocomplex and ecological area of Atragene speciosa Weinm. in the Altai-Sayan mountain region
Authors: Nekratova A N , Nekratova N A , Zverev A A , Zinner N S 
Published: March 2021

Abstract

Atragene speciosa Weinm. is a valuable nootropic medicinal plant, but not abundant in nature. The coenocomplex of Atragene speciosa consists mainly of dark coniferous taiga forest. The species composition of this cenocomplex includes 324 species, 74 of which are constant. According to humidity of habitats, this species is in the mesophyte group, and, according to the abundance and salinity or nutrient status of soil, it refers to the mesotrophic group. Cattle grazing is very little or absent in the sites of its vegetation.
Oxidative stress and its significance in the pregnancy pathogenesis in dairy cows
Authors: Safonov V , Ventsova I , Pelevina G 
Published: March 2021

Abstract
The lipid peroxidation and the antioxidant defence system indices in red-and-white dairy cows with the pregnancy pathology development - gestosis and with its physiological course - were investigated. The study objects were the Druzhba breeding plant (Voronezh region) animals with average annual milk production of 6,5 – 6,7 thousand kg. For the experiment, two groups were formed, the first (n=18) consisted of animals with gestosis clinical manifestations, the second (n-12) - animals with a pregnancy physiological course. The animals’ clinical condition was assessed using conventional methods. An increase in the malondialdehyde content in the animals’ blood with pathology, an increase in the catalase and glutathione peroxidase activity were found. The antioxidant defence non-enzymatic link components content - vitamin E and vitamin C - was reduced. With clinical gestosis, a decrease in the content of progesterone, testosterone, estradiol-17 β and cortisol in the blood plasma was noted, which indicates a fetoplacental complex functional insufficiency. Thus, oxidative stress arising against the imbalance background in the system “lipid peroxidation - antioxidant protection” is one of the factors determining the gestosis pathogenesis. The study results enhance the processes understanding occurring during the pregnancy pathological conditions development and will be useful in choosing prevention and therapy effective methods.
Identification of Bovine Herpesvirus type 5 in nasal swabs of naturally infected calves by Polymerase Chain Reaction
Authors: Simanova I N , Alexeyenkova S V , Anoyatbekova A M , Yurov K P 
Published: March 2021

Abstract
In this article, the results of molecular-genetic analyses of nasal swabs are presented. The experimental studies were carried out in the dairy farms of Vologda region suspected to the respiratory infections. The samples were obtained from the asymptomatic calves and from calves with cough and nasal discharges. The laboratory studies were conducted in the laboratory of virology of the FSC VIEV. The genome of the virus was detected by a polymerase chain reaction. The comparative analyses of identified nucleotide sequences of the virus with the reference strains of the International Nucleotide sequence database has shown the similarity with Bovine herpesvirus-5. Accordingly, as a result of our studies, the Bovine herpesvirus type 5 was identified in the nasal swabs of calves in farms of Vologda regions.
Pollen quality and pollen productivity of blue honeysuckle species and varieties
Authors: Yamburov M S , Prokopyev A S , Suchkova S A , Romanova S B , Chernova O D , Kataeva T N , Abzaltdenov T Z 
Published: March 2021

Abstract
Studies to assess the pollen quality and pollen productivity of blue honeysuckle were conducted on the ecosystem dendrological territory of the Siberian Botanical garden of TSU (Tomsk). Objects of research: 8 varieties and 4 species of blue honeysuckle – ‘Velvet’, ‘Berel’, ‘Vasyuganskaya’, ‘Zolushka’, ‘Lazurnaya’, ‘Ogneny Opal’, ‘Selena’, ‘Tomichka’, Lonicera altaica, L. edulis, L. kamtschatica, L. turczaninovii. It was found that the ‘Ogneny Opal’ and ‘Velvet’ varieties have low fertility, and the ‘Berel’ and L. edulis have an average fertility. Other varieties and species of honeysuckle have high pollen fertility. The viability of pollen with high values is more than 60 % – ‘Berel’, ‘Vasyuganskaya’, ‘Lazurnaya’, L. turczaninovii, L. kamtschatica, with average values from 40% to 60 % – ‘Selena’, ‘Tomichka’ and L. altaica, with low values – less than 40 % – ‘Velvet’, ‘Zolushka’, ‘Ogneny Opal’ and L. edulis. High pollen productivity – more than 20,000 pollen grains per flower – ‘Tomichka’, L. kamtschatica, L. turczaninovii and L. edulis, average productivity - from 10,000 to 20,000 pollen grains – ‘Berel’, ‘Vasyuganskaya’, ‘Zolushka’, ‘Lazurnaya’, ‘Selena’ and L. altaica, low productivity – less than 10,000 pollen grains per flower – ‘Velvet’, ‘Ogneny Opal’. It is recommended to use at least 10% of varieties with high pollen viability and pollen productivity as pollinators when creating industrial honeysuckle plantations: ‘Lazurnaya’, ‘Vasyuganskaya’, and ‘Berel’.
The treatment of tibia fracture by mesenchymal stem cells (Clinical case)
Authors: Viktorova E V , Platonova S A , Shagova N V , Savchenkova I P 
Published: March 2021

Abstract
There are many complications related to the treatment of small breed dogs’ fractures. Patient complaints: The owners contacted us after a four-year-old female toy terrier fell from a height of 2 meters, which resulted in a double tibia fracture. The first osteosynthesis procedure was effective only while healing of one fracture. The two subsequent procedures of osteosynthesis were ineffective during bone fusion in the area of the second fracture. The diagnosis was as the idiopathic disturbance of tibia fracture healing. Interventions: two months after the last osteosynthesis procedure and the absence of all signs of bone fusion, in order to avoid limb amputation, it was decided to inject allogeneic mesenchymal stem cells into the fracture area. Results: The slight signs of bone fusion were observed after three weeks of allogeneic mesenchymal stem cells injections into the area of the fracture. The X-ray examination after one and half months of cell therapy demonstrated the complete fusion of fracture. Conclusion: Considering the efficacy of healing of compound fractures or healing in breeds with impaired osteogenesis, the treatment with the application of mesenchymal stem cells is more optimal.
The Kuban grapes wild forms growing on the Red Forest nature reserve territory
Authors: Gorbunov I V , Ilnitskaya E T , Lukyanov A A , Makarkina M V , Mikhailovsky S S , Pankin M I 
Published: March 2021

AbstractModern scientific literature analysis on the Vitaceae Juss. Family biodiversity study showed that this issue is relevant today and is being studied by many scientists in our country more intensively than before, although not so deeply. For example, there is some information on indigenous varieties and grapes wild plants from Crimea, Dagestan, Don and other regions. Unfortunately, there is almost no scientific information on the Kuban wild forms and autochthons. This article contains a part or, one might say, a new large research work beginning on the Kuban grapes wild plants study, studied on the Krasnodar Territory, namely in the Red Forest state nature reserve. At the same time, their ecological and geographic growing conditions were studied with a phytocenoses detailed description. Found isolated populations of grapes, hypothetically could be Vitis vinifera ssp. Silvestris Gmel. or its variants var. Tipica Negr. (wild forest grapes). Wild-growing grapes samples genotypic was carried out for 7 microsatellite loci. The samples genetic similarity analysis according to the microsatellite analysis data revealed the close and most distant genotypes among the wild forms studied sample.
The dairy cows post-partum period dynamics during the ovaries ovulatory function recovery and depression
Authors: Sineva A , Lysenko A , Safonov V , Mikhalev V 
Published: March 2021

Abstract
A significant problem in the dairy farming industry is the decrease in the livestock reproductive capacity due to the ovaries physiological functions violation. This study examines the lipids, proteins and carbohydrates metabolism state, depending on the sexual cyclicity recovery in animals degree, while observing adequate feeding. For the experiment, 16 new-calving Holstein-Friesian cows with an average annual milk yield of 9.5 thousand kg were selected, divided into 2 equal groups, depending on the ovulatory function resumption. All animals received a balanced diet. Blood was taken on days 6, 12, 19, 40 and 68 after calving. Blood serum was separated and the total protein and individual fractions content, as well as the creatinine, urea, total lipids, cholesterol, triglycerides, glucose amount, were determined. To determine the hormonal status, the content of estradiol and progesterone was examined. The reproductive organs condition was assessed using transrectal palpation and using an ultrasound apparatus. We found that cows with ovarian dysfunction are characterized by protein and glucose globulin fraction decreased concentrations in the blood, increased creatinine content and hypothalamus-pituitary-gonad system hormone-producing function inhibition. With an accuracy of 87.5%, the glucose threshold level in the blood serum was revealed, at which ovarian dysfunction can be predicted: a decrease in fertility in cows is observed at a rate of <2.2 mmol/l. Taking into account the previous studies results, further research expediency on finding the hormonal and metabolic status relationship with ethology typological features and the central nervous system state is substantiated.
Influence of the main elements of winter wheat cultivation technologies on its productivity in the Kursk region
Authors: Kotelnikova M N , Asadova M G , Vartanova A B 
Published: March 2021

Abstract
Wheat (Triticum aestivum L) is one of the most valuable and highly productive grain crops in Russia. Wheat bread is high in protein and carbohydrates. The climate and soil, as well as the cultivation technology, have a great influence on these indicators in grain. Winter wheat is the main and most productive grain crop in the Kursk region, which occupies 40-45% of the grain wedge area. Over the past 30 years, its yield has been higher than that of other cereals. However, the productivity of winter wheat largely depends on overwintering. The main purpose of winter wheat is to provide the population with bakery and confectionery products. The value of wheat bread is determined by the peculiar chemical composition of the grain. Among cereals, wheat grain is high in protein. Its presence in grain depends on the variety, cultivation conditions and can be at the level of 9-15%. Wheat grain contains a large amount of carbohydrates, including up to 70% starch, vitamins B1, B2, PP, E, as well as provitamins A, D, up to 2% ash minerals. Wheat proteins contain a complete amino acid composition, all essential amino acids that are well absorbed by the human body. The amount of proteins and starch in wheat grain is in a ratio of about 1: 6 - 7, which is most favorable for maintaining a normal body weight and working capacity. Wheat bread has a high calorie content - 1 kg of it contains 2000 - 2500 calories, which confirms its high nutritional value as an important source of energy. The bulk of wheat grain is carbohydrates. They are represented mainly by starch (48-63%). Carbohydrates are of great energy value in human nutrition. In addition to carbohydrates and starch, grain contains 2-7% sugars (mainly in the germ), as well as 2-3% fiber. Fiber does not dissolve in water and is not absorbed by the body. When making flour, it remains in the bran. Fat makes up an average of 2% in a grain of wheat and is found in the germ and aleurone layer.
Improving the performance of tractor diesel engines by optimizing the fuel supply characteristics
Authors: Apazhev A K , Shekikhachev Y A , Batyrov V I , Bolotokov A L , Shekikhacheva L Z 
Published: March 2021

Abstract
Diesel engines to the greatest extent satisfy the tendencies that take place in the engine building: increased power indicators, reduced specific fuel consumption and toxicity of exhaust gases. It is possible to realize the indicated advantages of diesel engines only if the parameters that characterize the fuel supply are ensured and maintained. The nature of the fuel supply predetermines the indicators that characterize the quality of the workflow in a diesel engine. As you know, during the operation of a diesel engine, there are significant differences between the real characteristics of the fuel supply to the optimum. These differences arise due to the fact that the technical condition of the elements of the high pressure fuel system (HPF) changes. Establishing the optimal parameters that characterize the fuel supply during the operation of the fuel equipment (FE) is a rather difficult task, which is caused by the interconnectedness and interdependence of these parameters. It is especially necessary to take into account that while optimizing some fuel supply parameters, others often deteriorate. In order to ensure a high-quality fuel combustion process, the fuel system of a diesel engine is faced with the task of ensuring guaranteed injection of a metered cyclic fuel supply (CFS), taking into account the specified phases and injection characteristics, which will have a beneficial effect on the fuel combustion process in any operating modes of the diesel engine. Thus, with a change in the technical characteristics of the HPF during operation, the characteristics of the injection also change. When studying the influence of the HPF parameters on the fuel supply characteristics, the change in the injection characteristics is often not taken into account, which is explained by the complexity and laboriousness of these studies. Considering the above, the optimization of the characteristics of diesel engines fuel supply is an urgent problem.
Adaptation of soils of the Ciscaucasia to processing systems
Authors: Kuzychenko Yu A 
Published: March 2021

Abstract
The intense technological and natural anthropogenic load on the soils of the Stavropol Territory, leading to a violation of its ecological and production functions and a decrease in fertility, requires a differentiated approach when introducing a particular soil cultivation system for a specific type or subtype of soil. It is proposed to develop a generalized indicator D for assessing the implementation of various systems of basic tillage for different types of soils based on criterion factors: humus content (%), soil density (d, g/cm3), soil resistivity (T, kg/cm2) and soil ped content >10 mm (C, %). As a result of calculations of the indicator Dfact for a specific soil and comparing its values with the range of Dtest it was found that for ordinary chernozem and solonetzic chernozem with Dfact equal to 0.889 and 0.932, moldboard plowing is acceptable for certain crops in the crop rotation, dark chestnut and chestnut soils with Dfact equal to 0.828 and 0.778, respectively, it is preferable to cultivate without moldboard with a combination of different methods and depth of soil cultivation, on light chestnut soils (Dfact=0.749), minimization with shallow mulching is recommended.
Investigation of the process of shredding coniferous sawdust in a crusher with a two-way material supply system
Authors: Zykin A A 
Published: March 2021

AbstractRussia is one of the main countries in the extraction and processing of forest resources. Waste from wood processing is still one of the cheapest energy sources. Therefore Russia is actively developing and introducing technologies for processing waste from the forest industry. The technology for producing fuel pellets and briquettes is widespread. One of the operations of this technology is the preliminary grinding of the feedstock. Nowadays, traditional hammer mills are used for this, which are used in the feed industry. As a result of the analysis of the designs of such crushers, it was revealed that when grinding materials with a low specific gravity, their potential is not fully utilized. A hypothesis has been put forward that an increase in the productivity of hammer crushers when grinding materials with a low specific gravity is possible due to a change in the conditions for introducing raw materials. To test this hypothesis, a crusher with two feed necks and a vortex chamber was developed. Research has been carried out to study the influence of the conditions for entering the shredded material into the crushing chamber. The performance of the crusher is determined with three ways of feeding the shredded material.
Polycyclic aromatic hydrocarbons in sediments of water reservoirs (middle Volga region, Russia)
Authors: Stepanova N Yu , Korostyleva M I , Lovchev V M 
Published: March 2021

Abstract
Bottom sediments from the Kuibyshev and Cheboksary reservoirs were sampled and the content of anthracene, acetonaphthylene, acenaphthene, benz (a) pyrene, benz (b) fluoranthene, benzo (k) fluoranthene, benz (g, h, i) perylene, dibenz (a, h) anthracene, pyrene, fluorene, fluoranthene, phenanthrene, chrysene was analyzed. The level of the total polycyclic aromatic hydrocarbons (PAH) content in the bottom sediments of the Cheboksary and Kuibyshev reservoirs was lower in comparison with the standards adopted in foreign countries. A tendency of increasing the PAHs content from the upper to the lower parts of the reservoirs, in the area of the Kama river mouth and the upper reach of the Samara hydroelectric power plant, was noted. PAHs with three benzene rings prevailed in the bottom sediments of the Cheboksary reservoir, and two and five benzene rings - in the Kuibyshev reservoir.