Abstract: The article considers the issues of reclamation of lands contaminated with oil products. The situation in oil-contaminated areas is aggravated Ьу the fact that getting on the soil hydrocarbons form an oil film on its surface preventing the penetration of substances. The transformation of the soil under the influence of petroleum products depends on the production activities of the enterprise and determines the nature and extent of pollution. The penetration depth of oil products is determined Ьу the physical properties of the soil, as well as the structure of the soil profile. The issues of legislation regulating the oЫigation to carry out restoration measures and compensation for environmental damage are considered. In addition to the basic requirements for reclamation projects and measures for their implementation, there are many inaccuracies in the legislation on reclamation issues. There are two main stages of land restoration: technical and biological, which are in turn sub-divided into several more types. Each of them сап Ье applied alone or in combination with the others depending on the land restoration proj ect. All methods of reclamation are applied depending on the further purpose of land use, the nature of pollution, as well as the conditions of reclamation measures. One of the main factors when choosing а reclamation technology is economic feasibility.

Keywords: petroleum products; soil contamination with petroleum products; land reclamation; Ыological reclamation; technical reclamation; phytomelioration; microЫological reclamation

Abstract: The paper presents data on the effect of individual components of complex biological preparations based on lectins and bioflavonoids on the sowing qualities of реа and soybean seeds of various varieties. The energies of germination and germination of реа and soybean seeds under the influence of components of biological preparations have been studied. The expediency of using the studied components of biological preparations for increasing of реа and soybean seeds germination has been determined. The paper analyzes the growth rates of seedlings of agricultural crops under the influence of plant biologically active substances, salicylic acid, and magnesium salt. The following objects were selected for the study: peas of the "Pharaon" and "Batrak" varieties, soybeans of the "Maxus", "Annushka", "Augusta", and "Svapa" varieties. The seeds of these plants were treated with solutions of various components of biological preparations. The paper presents the results of the study of the dynamics of the activity of antioxidant enzymes under the influence of lectins, flavonoids, salicylic acid, and magnesium salts. The role of these components in changing the activity of superoxide dismutase and peroxidase in the cells of реа seedlings is discussed. The role of individual components in increasing the immunomodulatory properties of biological preparations has been studied. It was found that the activity of enzymes of superoxide dismutase and peroxidase in the cells of реа seedlings increases under the action of lectins and salicylic acid. As а result of the experiment, it was found that the area of the primary leaf of peas increased when the seeds were treated with salicylic acid and magnesium sulfate, while а decrease in the length of the main root was noted. The action of bioflavonoids and lectins led to an increase in the growth of the main root in реа and soybean seedlings. All studied components of the biological preparations contributed to an increase in the number of lateral реа roots.

Keywords: flavonoids, lectins, Ыological preparations, peas, soy, peroxidase, superoxide dismutase, germination, germination energy, salicylic acid

Abstract: The influence of calcium carbonate (limestone) on the course of biochemical processes during the germination of wheat seeds of the Buryat spinous variety was studied. The study was carried out using two methods: experimental one and the method of thermodynamic modeling following the "Selector" program. Wheat seeds were germinated in solutions of substances corresponding to the composition of the most important macrofertilizers. А significant positive effect of limestone on the processes of protein biosynthesis in wheat seedlings of the Buryat spinous variety was revealed. According to this indicator, nitrogen­containing and potassium-containing solutions are close to the control; phosphorus-containing solutions are characterized Ьу the lowest efficiency of protein biosynthesis. In addition, the presence of limestone provides the maximum (in а number of studied solutions) indicators of the length and mass of the roots. Potassium-containing and phosphorus-containing solutions are characterized Ьу the minimum values of the above indicators. 1n nitrogen-containing solutions, the root length is close to the control, but the mass is significantly lower. The number of roots is practically independent of the solution for germination. The interpretation of the results obtained using the method of thermodynamic modeling based on the "Selector" software package has been carried out. According to the simulation results, in the studied systems with the participation of calcium carbonate, there is а significant increase in the chemical activity of oxygen with an increase in the amount of calcium carbonate, which has а positive effect on the biochemical processes in plants. The relationships revealed in the work are manifested, as а rule, with amounts of calcium carbonate up to 5 mol, which, taking into account the parameters used in modeling, corresponds to the introduction of limestone into the soil approximately at the rate of 5 t / ha. It was revealed that systems containing calcium carbonate are characterized Ьу а high thermodynamic probability of atmospheric nitrogen oxidation with the formation of а metastaЫe nitrate ion in solution.

Keywords: wheat, protein, physical and chemical modeling, mineral fertilizers, chemical potential

Abstract: The development of agriculture is impossiЫe without the use of high-tech industries such as hydroponic technologies. This is important for climatic zones where the cultivation of thermophilic berry crops is very risky. Such crops include large-fruited strawberries, industrial varieties of which are short-lived in our climate due to their low winter hardiness. The aim of this work was to create а closed cycle for growing large-fruited strawberries for the conditions of Irkutsk region. The studies were carried out on the basis of the experimental site and the artificial climate station Fitotron of SIPPB SB RAS in 2018-2020. During the work, two short­day varieties Alba and Kimberly and remontant variety Selva were selected from а large set of varieties for industrial use. For experiments on hydroponic cultivation of strawberries, а working model of а hydroponic plant with different types of lighting was assemЫed. Comparison of phenophases and commercial properties of strawberries under normal lighting and under lamps with а ratio of red and Ыuе spectrum of 5: 1 showed that in the latter case, the vegetative development of large-fruited strawberries lasts for 2 months with the usual intervals of flowering and fruiting. The average weight of the fruit under the white light was two times lower than under the phytolamps. The appearance of the berry, its color, texture, taste, and aroma of strawberries grown under phytolamps significantly exceeded those of berries grown under normal lighting. In our case, the calculations showed that the profitability of growing strawberries on hydroponics was 124%.

Keywords: large-fruited strawberries, "jrigo" technology, hydroponic installation, seedlings, early maturity, productivity, projitaЫlity, artificial lighting, phytolamps, expanded clay

Abstract: In Irkutsk region, there are about 2,700 large farm and individual agricultural enterprises. А significant part of them has а mixed crop-livestock production activity. As а rule, many of the medium and small producers form their farms without sufficient scientific support and experience significant difficulties, both in farming systems and in animal husbandry. The weak relationship between these industries is reflected in the low productivity of both animals and farmland. Based on the existing structure of agricultural enterprises, а significant part of the total volume of production (57%) is produced in small-scale farms. At the same time, the production types (the specialization of all these producers) are very diverse: from traditional dairy, meat, grain, grain-livestock to mink breeding and aquacultureln this regard, standard models of the production structure, and even more such methods of their formation, theoretically do not exist. Each economy is formed on the basis of the combination and interactions of а whole complex of conditions and factors of natural and anthropogenic nature and is а kind of product of а really developed multi-structured economy. The article presents for the first time а systematic methodology for the formation of such farms on the basis of zonal and regional standards, а system of detailed calculations for determining the livestock population and the need for land in their relationship taking into account the productivity of both animals and farmland. The paper presents 4 options for calculating the need for feed; the need for land per forage head is calculated for different productivity of animals and yields and the maximum and minimum indicators of the number of animals per 100 hectares of farmland are determined. It has been determined that the planning and selection of optimal models (options) of agricultural enterprises of crop and livestock specialization should Ье based on а detailed calculation system for zonal and regional standards of the feed base, which is interrelated with the livestock and productivity of livestock, land and their area.

Keywords: agricultural enterprise, specialization, planning, livestock, feed, diet

Abstract: In 2019, а new species for the Russian fauna was discovered on the Primorsk Territory - the water deer Hydropotes inermis Swinhoe, 1870. This representative of the Deer family, Cervidae, is quite widespread on the Korean Peninsula, inhabiting thickets of reeds, river banks, and rice paddies. Initially, it was believed that it was distributed only in the very south of Primorye - in the Khasan district; later on, there were data obtained on the water deer prey much further north in the vicinity of the city of Ussuriysk. The article describes new water deer finds near this city in 2020. One deer was hunted Ьу hunters in the vicinity of the village of Stepnoye in Mikhailovsky District; the second deer was chased and hunted down Ьу dogs within the city of Ussuriysk. In addition, there is unconfirmed information about the encounters of several water deer on the border of Pogranichny and Khorolsky districts. These findings confirm the fact that the water deer is much more widespread on Primorsk Territory. New finds of water deer to the north of the Khasan district suggest that this species is apparently much more widespread in the southern part of Primorye than it was previously assumed and that in Ussuriysk area there are not individual migrating individuals, but there is а population of this ungulate. Further collection of information about the finds of water deer on Primorsk Territory is necessary to assess the area of its distribution on the territory of the Russian Federation.

Keywords: water deer, Hydropotes inermis, Primorsk Territory, Ussuriysk

Abstract: The materials were collected Ьу the authors during their work as part of the expedition of Scientific Center of SB RAS (Ulan-Ude) in August 2020. The work area is located 100 km from Irkutsk. Неге are the Lower, Middle and Upper Kochergat rivers, which flow into the Goloustnaya river (its lower courseThe length of the routes was about 30 km; the number of observation hours was 60. The method of quantitative route accounting with а limited detection band (transect accounting) is used. Photo and video data were used. When studying the features of the avifauna of the order Passeriformes L., 1758 in one of the ecologically clean areas of Irkutsk region - in the vicinity of the village Lower Kochergat (west coast of Lake Baikal), 20 species of representatives of 13 families have been identified: Нirundinidae Vigors, 1825, Corvidae Vigors, 1825, Sittidae L., 1758, Aegithaliidae L., 1758, Paridae Vigors, 1825, Laniidae L., 1758, Muscicapidae Vigors, 1825, Motacillidae Horsfield, 1821, Sparrows - Passeridae Sundevall, 1836, Fringillidae Leach, 1820, EmBerizidae Leach, 1820, Turdidae Rafinesque, 1815, Phylloscopus Boie, 1826. 1n terms of species, titmice, ravens and wagtails were dominant. The smallest in terms of species composition are: flycatchers, shrikes, nuthatches, swallows, warЫers, Ыackbirds. Representatives of the order Passeriformes dominate (57%) among the other orders of birds registered in the study area. The maximum number of species (7) was recorded directly in the village on the right and left banks of the Nizhny Kochergat River and on the right bank of the Goloustnaya river.

Keywords: western coast of lake Baikal, the lower course of the Goloustnaya river, order Passeriformes L., 1758, settlement Nizhniy Kochergat

Abstract: The paper summarizes the material on the fauna of small mammals of the forest-steppe Trans-Ural - the second half of the ХХ century and the beginning of the XXI century. А brief history of the study of this group of animals is considered. The use of two methods of accounting (trap grooves and trap lines) made it possiЫe to most fully identify the species composition of insectivores and rodents in the forest-steppe Trans-Ural in 20201n general, rodents predominate on the studied territory, which is determined Ьу the specifics of this area, the predominance of open and semi-open spaces, as well as the features of the summer period in 2020 (continuing drought). The species composition, the group of background, dominant species, and the indices of the total abundance of small mammals in the forest-steppe Trans-Ural were largely determined Ьу the specifics of the animal registration method. When using trapping grooves, the representatives of 16 species were found to inhabit, while rodents were caught about 2 times more than insectivores. When registering animals that were caught with the help of traps , the predominance of rodents is even more pronounced - almost 1 О times. The саге of small mammals of the forest-steppe Trans­Ural was made up of species that tend to forested and moistened habitats - the small forest mouse, the common shrew and the red vole. The group of codominant species is the narrow-headed vole, the field vole, the root vole, and the common vole. In 2020, 21 species of small mammals were registered in the studied area; 13 species of insectivores and rodents could potentially Ье encountered. То obtain biology and ecology data on them, it is necessary to continue monitoring observations, expand the studied area and the range of biotopes, especially steppe and near-water ones.

Keywords: insectivores, rodents, species composition, distribution, abundance, dominant species, forest-steppe Trans-Ural

Abstract: Chollipo Arboretum, one of the first private arboretums in the RepuЬlic of Korea, founded in 1970, specializes in collecting unique collections of various plants, primarily woody plants from USDA climatic zones 4 to 8. The main focus in the formation of collections is on five genera: Maкnolia, Ilex, Camellia, Acer and HiЫscus - interesting for their decorative value. А Magnolia Garden (12914 sq. m.) has been created, where 809 individual trees of 298 magnolia taxa have been planted for research, education and aesthetic demonstration purposes. The collection includes such species as Maкnolia sieboldii, М sieboldii subsp. Sinensis М kobus, М compressa, М stellata, М liЩfiora, М obovata, М denudata, М qfficinalis, М granфfiora, М dawsoniana, М decidua, М lotungensis, М patungensis, М атоепа, М cylindrica, М nitida, М sargentiana, М acuminata, М Ыondii, М delavayi, М denudata, М figo, М .fordiana, М .fraseri, М granфfiora, М macrophylla, М martinii, М marudiae, М salic􀀓folia, М tripetala, М virginiana, М сосо, М compressa, М doltsopa, М yunnanensis and others, including hybrids and varieties of М х soulangiana, М 'Strawberry & Cream', М 'Yellow Sea', М х loebneri 'Вig Bertha', М 'Leonard Messel', М х loebneri 'Early Bird', М х loebneri 'Raspberry Fun', Maкnolia 'Vulcan '. The Chollipo Arboretum has specially planted 43 magnolias on 27 family plots in the nearby villages of Chollipo and Mallipo to attract the local population. The collected resources of the magnolia germ plasm in Jeollipo contribute greatly to omamental gardening in Korea.

Keywords: Arboretum, collection, display, reproduction, Magnolia, Magnolia, Korea

Abstract: The article presents the results of the studies of the morphological features of the structure of the small intestine of the hybrids obtained Ьу crossing а yak and а cow of а Ыack­and-white Holstein breed in comparison with the original species. The results of our studies have shown that the F1 hybrids of the yak and the Ыack-and-white Holstein breed have а lower body weight provision with intestinal mass (%о) compared to the Ыack-and-white Holstein breed and differs little from the yak on this basis. At the same time, F 1 hybrids have а more improved development of the small intestine mainly due to the jejunum and ileum than in the yak. In addition, F1 hybrids have more intestinal villi in the jejunum than the Ыack-and-white Holstein breed and more developed mucosa in the duodenum and ileum than the original species. In F2 hybrids, there were no statistically significant differences in the provision of body weight with intestinal mass compared to the original species. The increase in the relative development (%) of the small intestine in Fl hybrids compared to the yak is also observed in F2 hybrids containing ¾ of the Ыооd of the Ыack-and-white Holstein breed; F2 hybrids containing ¾ of the Ыооd of the yak have а greater similarity with it. There is а certain tendency to an increase in the development (%) of the duodenum in F 1 and F2 hybrids in both variants of crosses in comparison with the Ыack-and-white Holstein breed and the jejunum in comparison with the yak. The duodenum of the hybrids is characterized Ьу а stronger development of the mucous membrane, intestinal crypts, Brunner's glands, which indicates its greater functional capabilities in comparison with the original species especially with the Ыack-and-white Holstein breed.

Keywords: yak, cow, Ыack-and-white Holstein breed, hybrids, intestinal crypts, duodenum, small intestine, ileum, jejunum

Abstract: Forensic pathoanatomical examinations of the corpses of гаге and red-book animals in the Center for the Study of Animal Diseases of Primorsky State Agricultural Academy are not common. The Amur tiger, an animal that lives only in the south-east of the Russian Far East, often becomes а victim of poaching and conflicts with humans. We have studied а sufficient number of corpses of these animals without life-threatening pathologies (helminthic infestations, skin diseases, etc.), which allows us to compile objective information about the anatomy and physiology in the norm. However, in the process of working with pathological material, there have been some individuals identified whose lives were interrupted due to serious illnesses. This article is devoted to one of such cases. The object of the study was the heart of the Amur tiger, which died due to symptoms of cardiopulmonary insufficiency. The mass of the heart in the investigated individuals was 795. The thickness of the right ventricle is 6.7 mm, left - 28.4 mm; The wall thickness of the right atrium is 4.3 mm, left - 3.19 mm. Fat deposits in the field of atria were extremely scarce, as well as in the area of the Crown and both longitudinal furrows. When studying the organ complex "heart-lungs", as well as other organs, foci of neoplasms characteristic of oncological disease were identified. Thus, metastatic foci were found in the lung tissue; similar formations were found on the heart valves. As а result, vegetations formed on the walls of the vessels and atrioventricular valves and their deformation. The distinctive features of the structure of the internal structures of the heart in animals with warty endocarditis have been studied. The heart of an adult male was used as а material. The morphometric parameters of internal structures were determined in comparison with the norm.

Keywords: Amur tiger, heart, morphometric parameters, internal structures, warty endocarditis

Abstract: One of the planned breeds for sheep breeding in the TRANS-Baikal territory is the TRANS-Baikal fine-wool breed of sheep. То increase the productivity of TRANS-Baikal sheep, the aim was to identify а possiЫe relationship and genetic markers of erythrocyte Ыооd factors with the productivity of sheep of three different types of TRANS-Baikal breed. The comparison of erythrocyte factors of sheep Ыооd with wool shearing and live weight of three intrabreed types: wool, wool-meat and meat-wool was carried out. Immunogenetic testing was performed using monospecific reagents of the Bank for six systems of Ыооd groups (А, В, С, D, М, R), including 14 erythrocyte factors (АА, АВ, ВВ, Bd, Ве, Bg, Bi, Са, СЬ, Da, Ма, МЬ and R). It was revealed that the presence of erythrocyte factors АЬ, Ве and Bi in the Ыооd of wool-type sheep was accompanied Ьу higher rates of wool shearing in sheep-producers and ewes Ьу 0.58 and 0.36 kg, in repair young animals-by 0.54 and 0.44 kg, respectively. Candidates for markers of wool productivity of adult sheep and sheep of wool-meat type include the abbeda factor complex, in Yarok-the presence of the АЬВеВ antigen complex. As а result of Ыood analysis in sheep of meat-wool type and search for antigens associated with productivity, it was found that the presence of antigen АЬ+, but the absence of МЬ-wаs accompanied Ьу а significantly large cut of pure wool in the group in rams Ьу 0.33, ewes - Ьу 0.24 kg, in young animals-by 0.23 and 0.21 kg. А single Ыооd group factor, reliaЬly marking the living mass of sheep-producers of wool type, has not been estaЫished. The presence of Bd+ antigen in the Ыооd of ewes is accompanied Ьу а significant increase in live weight Ьу 1.5 kg compared to animals of the reverse genotype. For wool-meat type the absence of antigen Ве-, but the presence of Bg+ was accompanied Ьу more live weight compared to the average : the rams 5.2 kg, ewes - 1.6 kg. In the group of rearing live weight at the carriers Be-Bg+ genotype was higher: the rams 3.0, arocc - 3.6 kg.For sheep and sheep meat-wool type, the largest live weight was characteristic of carriers of complex ВЬ + СЬ -, among rams and yarochek-Bb+Bg -.

Keywords: TRANS-Baikal sheep, intra-breed types, Ыооd antigens, communication, wool shearing, live weight, markers