Peer review declaration

All papers published in this volume of IOP Conference Series: Earth and Environmental Science has been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Double-blind • Conference submission management system: https://peatlands2021.ru/ • Number of submissions received: 18 • Number of submissions sent for review: 18 • Number of submissions accepted:15 • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 83% • Average number of reviews per paper: 2 • Total number of reviewers involved:6 • Any additional info on review process: The abstracts were submitted by the online system which is available on the conference page https://peatlands2021.ru/. Uploading of full paper may only be done by participants who attend and present their research activities during the conference. The submitted full papers are then collected by the committee for review regarding the format, language and suitability of the conference scope. The papers were sent to 2 reviewers according to topic of the papers and reviewer’s competency. Reviewer was given around 2 weeks to conduct review of the paper for publication in IOP Conference Series. Authors have 2-3 weeks to resubmit an updated version of their submissions with the necessary changes for further evaluation, which should follow the comments and suggestions from our reviewers. Only those submissions passed the peer review and accepted by the reviewers and editors will be included in the conference proceeding finally. • Contact person for queries: Name: Kharanzhevskaya Yu. A. Affiliation: Siberian Federal Scientific Centre of Agro-BioTechnologies of the Russian Academy of Sciences, Siberian Research Institute of Agriculture and Peat, Tomsk, 3 Gagarin st., 634050, Russian Federation E-mail: [email protected]

The quality of quail meat upon crossbreeding

The growing consumer demand for safe food offers great prospects for the production of quail meat. The progress in poultry farming is based on the use of hybrid breeds. This study was carried out at the Siberian Research Institute of Poultry (Omsk Region). Studied were the productivity and quality of quail meat of Japanese and Pharaoh breeds and their hybrid combinations (?Japanese×?Pharaoh and ?Pharaoh×?Japanese). Hybrid combinations had lower body weight than the Pharaoh breed (by 7.78-16.30%, p<0.05), but larger body weight than the Japanese breed (by 11.33-22.66%, p<0.05). The discrepancies in body weights are due to the weight of the pectorals, the share of which is 19.43-21.63% for males and 18.34-19.45% for females. The superficial pectoral muscle accounts for the bulk of the weight of the pectoral muscles (74.09-78.22%). The deep pectoral muscle accounts for 21.78-25.91%. The area of muscle fibers of the superficial pectoral muscle is 226-299 μm2, the area of deep pectoral muscle is 409-443 μm2. For hybrid combinations, the area of fibers of the superficial and deep pectorals depends on the male breed. The protein content in the pectoral muscles of the Pharaoh breed was higher than that of the Japanese by 1.01-1.02 g, but the fat content was lower by 0.24-0.96 g. In hybrids, the paternal form has an impact on the protein content in the pectoral muscles, and the maternal form has an impact on fat content.

‘Tobolyak’: an oat cultivar for universal use

Background. An urgent problem is the development and introduction of cultivars for universal use that can meet the demand of animal husbandry for various types of feed and that of food industry for raw materials. Of great interest in this regard is ‘Tobolyak’, a new spring oat cultivar characterized by a high yield of grain and green biomass.Materials and methods. The cultivar was developed at the Research Institute of Agriculture for the Northern TransUrals, a branch of the Tyumen Scientific Centre, Siberian Branch of the RAS, using hybridization techniques with subsequent selection. The cultivars used as source material for hybridization were ‘Tayoznik’ (Narym Agricultural Station, Tomsk Province) and ‘Orion’ (Siberian Research Institute of Agriculture, Omsk Province).Results. It is a mid-ripening cultivar, with the growing season of 71 to 83 days from sprouting to wax ripeness; its plants are medium-tall (89.6 to 120.2 cm), and resistant to lodging. The average grain yield for the years of study (2014–2019) under the environmental conditions of the northern forest-steppe (Tyumen Province) was 5.88 t/ha (+0.41 t/ha to the reference). The maximum grain yield (7.97 t/ha) was obtained in 2019 at the Lower Tavda Variety Testing Plot, Tyumen Province. The cultivar formed a grain with the test weight of 459.5–527.0 g/l and a low hull content of 22.1–25.1%. The yield of green biomass varied from 31.4 to 47.3 t/ha, depending on the growing conditions, and averaged 37.7 t/ha in 2014–2019 (+7.3 t/ha to the reference). Dry matter harvest averaged 11.76 t/ha (+1.54 t/ha to the reference), ranging from 8.62 to 14.56 t/ha.Conclusion. The new spring oat cultivar ‘Tobolyak’ for universal use has been listed the State Register for Selection Achievements since 2020 and recommended for cultivation in regions 10, 11 and 12 of the Russian Federation.

STUDY OF PROMISING STRAINS OF LACTOBACILLUS PLANTARUM FOR THEIR FURTHER USE IN ANIMAL HUSBANDRY AND POULTRY FARMING

This paper discusses the research findings on 6 strains of lactic-acid bacteria of the species Lactobacillus planta-rum. These cultures were isolated from plant substrates from the Altai Region and included in the “Siberian Collec-tion of Microorganisms”. The research was carried out in the Laboratory of Milk and Dairy Product Microbiology of the Department “Siberian Research Institute of Cheese Making” of the Federal Altai Scientific Center of Agro-Biotechnologies. The conventional methods of microbiolog-ical and biochemical studies were used. To conduct the experiments, 18-hour cultures of lactobacilli were used; their active acidity on a liquid nutrient medium, the number of bacterial cells in the resulting biomass and antagonistic activity against opportunistic pathogenic test cultures of Escherichia coli were studied. According to the research data, the active acidity of lactobacillus strains varied in the range of 3.43-3.70 pH, as compared with the control -6.98 pH. These values show an active growth of cultures Lb. plantarumon a nutrient medium; this is additionally confirmed by the high number of bacterial cells in all sam-ples of the studied microorganisms. All lactobacillus strains actively suppressed the growth of E. colitest cultures. The obtained results show that the studied Lb. plantarumstrains may be used as probiotic cultures in the future when creating bacterial preparations for farm animals and poultry.

SEED BREEDING OF PERENNIAL CEREALS IN TAIGA ZONE OF TOMSK REGION

The main goal of breeding and seed-growing work with perennial grasses is the creation and reproduction of intensive varieties that are distinguished by high productivity, adaptability, and resistance to adverse factors. The tasks of varietal seed production of perennial grasses in the taiga zone include the preservation of biological and economically useful properties inherent in the variety during its reproduction; ensuring timely implementation of variety change and variety renewal; accelerated multiplication of seeds of new varieties. It is important to cultivate each crop according to modern scientifically based varietal technologies that are developed for the conditions of the region. To create highly productive seed herbage and successful harvesting, it is necessary to take into account the biological characteristics of species and varieties. The choice of seed farming methods is determined by the ability of populations to retain their valuable properties in the process of seed reproduction. When developing promising methods of seed production of new generation varieties, it is necessary to study the reaction of plants to stressful phenomena and develop agrotechnical methods that allow plants to adapt to them with a minimum decrease in seed productivity. The development of seed production of perennial cereal grasses in the extreme soil and climatic conditions of the taiga zone contributes to the growth and stabilization of the gross harvest of seeds with high sowing qualities. The article presents the main results for 2015-2019. on perennial cereal grasses in the Narym Department of Breeding and Seed Production of the Siberian Research Institute of Agriculture and Technology - a branch of the SFNCA RAS. Seed growing is carried out according to the traditional scheme. Due to adaptive varieties, the agroecological zoning of seed production is being improved. The aim of this work is to summarize the results of seed production on perennial grasses in the taiga zone of the Tomsk region.

TURF-FORMING GRASSES FOR THE TAIGA ZONE

Experimental selection studies were carried out in 2016-2018. in the fields of the Narym Department of Breeding and Seed Production of the Siberian Research Institute of Agriculture and Peat (Kolpashevo, Tomsk Region). The purpose of the research was to study collection samples of lawn grasses capable of effectively using the agro-resource potential of the naturaland climatic conditions in the taiga zone of the Tomsk region. The climate in the research area is sharply continental with long, severe winters and short, but hot and often dry summers. The snow cover lasts about seven months (usually from October to April). The frost-free period is short. Annual precipitation is about 500 mm, including more than 300 mm during the growing season. The sum of air temperatures above 10° C is 1300-1600° C. The soils of the experimental plots are sod-podzolic, sandy loam in granulometric composition, with a humus content in the arable horizon of no more than 2%. As experimental material, 21 samples of bluegrass of three species were studied (8 domestic and 13 foreign varieties); 21 samples of pasture ryegrass (domestic varieties - 3, foreign - 18); 10 samples of four species of bent field of foreign origin; 12 samples of five types of fescue (domestic varieties – 5, foreign – 7). Among the experimental cultivars, the following sources of economically valuable traits were identified: high winter hardiness - all investigated cultivars of bluegrass, bent grass, fescue; grade of perennial ryegrass Yuventus (Denmark); short stature - varieties of meadow bluegrass Yaskia, Limonsine (Germany), Barkenta (Netherlands); ryegrass cultivars of pasture Sport (Poland), Fiesta (USA), Yuventus (Denmark); bentgrass wild populations from Mongolia (K14272, K-14273) and bentgrass from Ukraine (K14265); fine texture source - perennial ryegrass varieties Yuventus, Denmark, Primevere, France, K-14233, Poland.

Efficacy of Probiotic Preparation Based on Propionic Acid Bacteria in the Diets of Broiler Chickens

The article presents the results of testing in the diets of broiler chickens of probiotic preparation ”Propionic”, developed by the staff of the laboratory of Microbiology of the ”Siberian research Institute for cheese- making” Department of the Federal State budgetary scientific institution ”Federal Altai center of agrobiotechnology”, which includes a multi-strain culture of propionic acid bacteria species Propionibacterium freudenreichii. Scientific and economic experience was carried out under the conditions of poultry farm LLC ”Kuzbass broiler” of the Kemerovo region. For the research 2 groups of chickens-broilers (80 in each) was formed. The control group received the basic diet without probiotic. In the experimental groups to the main diet instead of feed antibiotic preparation ”Propionic” was added. In chickens of the experimental group, receiving probiotic preparation ”Propionic”, there was an increase in live weight by 2.38 %, absolute and average daily growth-by 2.42 %. The safety of probiotic-treated chickens was increased by 1.25%. Morphological and biochemical parameters of blood in chickens of control and experimental groups were within physiological norm that testifies to a healthy physiological condition of a bird. The serum of chickens treated with probiotic showed a decrease in the concentration of glucose by 2.97 % and cholesterol-by 6.38 %. The use of the probiotic preparation ”Propionic” allowed reducing feed costs per 1 kg of growth by 2.87 % and get an additional profit of 2.98 RUB from one head.

THE IMPACT OF PROBIOTIC “PROPIONOVYY” ON THE PRODUCTIVITY AND HEMATOLOGICAL FEATURES OF BROILERS

The paper demonstrates the results of applying some doses of probiotic specimen “Propionovyy” when feeding broilers. Propionovyy specimen was developed by the staff of the Laboratory of Microbiology of the department “Siberian Research Institute of Chemistry” of Federal Altai Center of Agricultural Biotechnologies. It includes multi strain propionate of Propionibacterium freudenreichii type taken from the Siberian collection of microorganisms. The scientific and economic experiment was conducted at the poultry farm of LLC Kuzbass Broiler in the Kemerovo region. The researchers arranged four groups of broiler chickens; each group contained 198 broilers. The control group received a basic diet without probiotics. In the experimental groups, different dosages of Propionovyy specimen were added to the main diet instead of feed antibiotic. The experiment explores the effect of “Propionovyy” specimen on livestock farming and physiological parameters of broiler chickens. The following indicators were considered: live weight, absolute and average daily gain of live weight, poultry liveability, feed costs per 1 kg of gain, morphological and biochemical indicators of blood at the age of 28 and 39 days. The researchers observed the chickens of experimental groups who received probiotic specimen “Propionovyy” and found out an increase in live weight by 0.49-1.94%, an absolute and average daily increase of up to 2.00%. The safety of the chickens receiving the probiotic was increased by 1.00-2.02% compared to the control group. Hematological parameters of blood in chickens of all groups varied within the limits of physiological standard that testifies to the healthy physiological condition of the poultry. The authors found out the decrease of glucose and cholesterol concentration in blood serum in the experimental groups. According to the research results the authors elaborated the appropriate and efficient dosage of “Propionovyy” specimen, rendering the greatest positive effect on productive qualities of poultry and reducing expenses of forages on 1 kg of growth on 0,05 kg.

Research of the influence of induction heating on the strength characteristics of steel 10HSND

In the production of welded spans of railway bridges since the 70s of the last century, low-alloy structural steels are used. In these constructions in recent years there has been an intensive growth in the formation of fatigue cracks. Currently, the only technology used by Russian Railways for braking fatigue cracks is to drill a hole in the mouth of a crack, followed by setting a high-strength bolt into it and tightening it to a standard force. At the Siberian Research Institute of Bridges (Siberian Research Institute of Bridges SGUPS), innovative technologies have been developed to inhibit the growth of fatigue cracks and strengthen welded spans using soldering and induction heating. Technology has proven effective. It is known that heating a metal to high temperatures can significantly change its structure and characteristics. In the scientific literature there are no data on changes in the strength characteristics of low alloy structural steels as a result of rapid heating. In a laboratory study, an analysis was made of the change in the strength characteristics of low alloy structural steel with rapid induction heating. Studies of structural steel samples showed that quick short-term induction heating of structural steel to the temperature of brazing does not lead to a significant change in its strength characteristics, and brazing and induction heating can be used to strengthen structures with fatigue cracks.