bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reserves for increasing the productivity of broilers with a large-cage method of keeping
Authors: Vyazenen G N , Natalevich L F , Razaev S V , Vyazenen A G , Barashkov A E , Pavlova E M 
Published: February 2021

Abstract
The paper describes the features of growing broiler chickens in conditions of large-group cage keeping at workshop No. 3 Patio of OOO Belgrankorm-Veliky Novgorod, Krestetsky District, Novgorod Region. The study used 2-start (11-20 days, granules), 3-growth (21-33 days, granules) and 4-finishing (34 days before slaughter). Broiler diets in the first period contained 1.26 MJ of metabolic energy (EE), the second – 1.28, the third – 1.30 and the fourth – 1.31 MJ (EE), crude protein, respectively (%) 22.42, 21, 49, 20.04 and 18.65. To increase the usefulness of diets and the use of nutrients and EE, the studied amino acids methionine and glycine, both individually and together in a 1:1 ratio, as well as Undevit vitamins, both individually and together with methionine in a 1:1 ratio (% by weight) were exposed to laser radiation of Hubbard broilers in the chest area through the laser beam of the spatial modulator (PM). Ozonation of air in the halls of the building and the poultry was carried out using a domestic ozonizer Rios of Dekont series (mode 3, productivity 20 g/m3). The feed conversion is quite high in 39 days of growing. The lowest consumption of feed (1.33 g/g) by production was observed in broilers of the third experimental group of the fourth scientific in0house experiment against 1.85 g/g in the analogs of the control group.
Biological diversity of non-traditional oil crops
Authors: Kshnikatkina A N , Kshnikatkin S A , Alenin P G , Shchanin A A , Prakhova T Ya , Prakhov V A , Medvedev A P , Voronova I A 
Published: February 2021

Abstract
The article presents the results of a study of non-traditional oilseeds of the family Brassicaceae (camelina, crambe) and the Asteraceae family (safflower, ramtil) in the Middle Volga region. The crop productivity was studied, which was high and varied in the range of 1.35–2.77 t/ha. The oil content in the seeds ranged from 28.3 % in safflower to 43.1 % in crambe. The fatty acid composition of these crops is used for various applications. A high content of erucic acid of 59.3 % was noted in the oil seeds of crambe, 2.92 % in the seeds of camelina. A high content of erucic acid (58.9 %) in the oil of crambe allows it to be used for the production of biodiesel. A sufficiently high content of linolenic (35.6 %), oleic (13.7 %) and a low content of erucic (up to 3.1 %) acids allows using camelina oil for food purposes. The content of erucic acid in safflower oil is reduced to trace values 0.03 %, which allows it to be attributed to valuable edible oils. The fatty acid composition of ramtil oil seeds is represented by a high content of linoleic acid (79.3 %). Ramtil oil can be considered as a valuable source of omega-6 essential fatty acids.
Creating new varieties of vegetable peas (Pisum sativum L.) using multicomponent crossings
Authors: Pronina E P , Ushakov V A , Antoshkin A A , Kotlyar I P , Kaygorodova I M , Musaev F B , Soldatenko A V , Gaplaev M Sh 
Published: February 2021

Abstract
Vegetable peas (Pisum sativum L.) is an important food product containing high balanced combination of protein-carbohydrate complex, biologically active and mineral substances. The need for canned green peas in our country is not satisfied due to our own production. With the increasing competitiveness of varieties, further study and use of the potential for intraspecific hybridization is necessary. To achieve breeding goals to increase the productivity of vegetable peas, to strengthen other traits, it is important to increase the recombination of gametes from several varieties, so complex crosses are becoming increasingly important. The aim of the study is to create the source material of the early and mid-ripening groups of ripening with new economically valuable traits and to produce highly productive canned peas. For the first time, using the method of complex crosses involving geographically distant and morphologically different forms, high-quality pea varieties of canned vegetable peas were created using different ripeness groups, with an optimal combination of productivity elements suitable for mechanized cultivation technologies. The created adaptive varieties of peas of intensive vegetable type with delayed polymerization of sugars and a high content of amylose fraction in starch are competitive with foreign analogues in productivity and taste: Gribovsky jubilee, Maxdon, Corsair, Triumph, Barin.
Assessment of breeding hybrid potatoes in irrigated conditions of the steppe zone of the Southern Urals
Authors: Mushinskiy A A , Vorontsova E S , Aminova E V , Saudabaeva A Zh 
Published: February 2021

Abstract
The creation of varieties with a high potential productivity and adaptability applied to the environmental conditions of a particular climatic zone is the main goal for breeding programs. The purpose of this work is studying and identifying the most adaptable hybrid materials that are most adaptable to the conditions of the steppe zone of the Southern Urals for selection, combining high productivity, resistance to major diseases with the complex of economically valuable traits. The objects of research were breeding hybrids 10.76.32; 02.40.17; 01.2.50; 01.12.51; M07.48.19; 05.57.32 and 10.02.19 obtained in the potato breeding laboratory of the South Ural Scientific Research Institute of Horticulture and Potato. Assessment of the represented volume of samples was carried out according to the morphological characteristics of plants, productivity, marketability, starch content in potato tubers, culinary type, taste, resistance to pathogens (Erwinia carotovora atroseptica, Clavibacter michiganensis sepedonicus, Dickey pectobacterium atrosepticum, Phytophthora infestans, Streptomyces scabies, PVM, PVS, PVX, and PVY). The breeding hybrids under study significantly exceeded the variety - standard Nevsky - in terms of yield by 97-1182g per bush. The highest starch content was recorded in breeding hybrids: 02.40.17 (18.4%), M07.48.19 (18.2%), 0.1.2.50 (17.6%). In taste the highest tasting score received - M07.48.19, 02.40.17 (5 points), 05.57.32 (4.5 points), 10.02.19 (4.7 points). The culinary type assessment showed that to the salad type (preferably not fall apart) applies the selection hybrid 10.76.32. Over the years of research low susceptibility to the pathogens under consideration was possessed by the following hybrids: 01.12.51, M07.48.19 and 05.57.32.
Yield and cost-effectiveness of ORMISS-responsive pea varieties
Authors: Streltsova L G , Zhogaleva O S 
Published: February 2021

Abstract
The paper presents the results of the assessment of yield and economic efficiency of pea varieties that are responsive to treatment with organo-mineral stimulating compositions (ORMISS). The field experiment began in 2015-2017 on the fields of the Azov-Black Sea Engineering Institute of Don State Agrarian University in Zernograd. For the treatment of pea seeds and plants, the ORMISS combined fertilizers – Cu/B and Cu/Mo were used at a dosage of 2 l/t and 2 l/ha, respectively. The yield was evaluated and the cost-effectiveness of various options of treatment of three pea varieties of Don breeding with these agents was calculated. It was found that all studied pea varieties were responsive to treatment and had a reliable yield increase relative to control. The maximum yield was reached when treating the Aksaysky usatyi 5 variety with ORMISS Cu/Mo – for vegetating plants (3.34 t/ha), Alliance variety – when combining pre-treatment of seeds with foliar nutrient in the 3-5 leaf phase (3.49 t/ha), when treating Ataman variety with ORMISS Cu/B – in case of two-fold out-root treatment (3.68 t/ha). The highest economic effect was obtained according to these processing options and amounted to 15620 rubles/ha in the Aksaysky usatyi 5 peas variety, Alliance – 11850 rubles/ha, Ataman – 9759 rubles/ha.
Compliance of modern agricultural tractors presented on Russian market with global emission standards
Authors: Davydova S A , Starostin I A 
Published: February 2021

Abstract
The paper discusses the problem of compliance of diesel engines of agricultural tractors that are available on the Russian market with international environmental regulations and standards. Based on the data presented on the official websites of agricultural machinery manufacturers, an analysis of modern domestic and foreign tractors is performed. The performed studies allow concluding that in Russia there is a serious problem associated with the mismatch of agricultural tractors available on the Russian market with the of Stage and Tier global emission standards; 87 % of domestically produced agricultural tractors correspond to low emission classes (Euro 0, Euro 2, Tier 2, Tier 3); 78 % of the examined imported models of tractors from leading world manufacturers comply with emission classes below Tier 4. Methods for improving diesel engines towards reducing the amount of harmful substance emissions into the environment are described: adjustable turbocharging, aftercooling, partial exhaust gas recirculation, electronically controlled Common Rail, and exhaust gas purification and aftertreatment systems are used.
Environmental aspects of long-term use of mineral fertilizers on leached blacksoil of the Western Ciscaucasia
Authors: Gutorova O A , Sheudzhen A Kh , Hurum H D 
Published: February 2021

Abstract
The research purpose consists in studying the effect of long-term use of mineral fertilizers on changes in the fertility of leached blacksoil (Grey-Luvic Chernozems) of the Western Ciscaucasia. The studies were conducted in the framework of the stationary field experiment of the Department of Agrochemistry of the Kuban State Agrarian University, founded in 1981 and occupied by crops of 11-field grain-grass-row crop rotation. Over the period of 1981-2019 years, N950P910K670, N1900P1820K1340 and N2850P2730K2010 were applied on contrasting variants with single, double and triple norms of mineral fertilizers, respectively. Comparison backgrounds are represented with initial indicators prior to the station establishment and with the control variant without fertilizers. The fertilizer system used in crop rotation supports optimal parameters of leached blacksoil fertility (pHH
2
O= 6.41-6.50; humus content – 3.50-3.58%; nitrogen content – 21.8-27.7 mg NO3/kg and 13.0-16.0 mg NH4/kg; mobile phosphorus – 155-170 mg P2O5/kg; exchange potassium – 255-266 mg κ2O/kg) and improves the physical properties of soil. At the same time, during the 38-year period of annual application of mineral fertilizers, soil acidification was recorded (hydrolytic acidity increased by 0.51-0.93 mg-eq/100 g; pHKCl values decreased by 0.30-0.38 units; pHH
2
O – by 1.20-1.33 units), while the amount of absorbed bases decreased by 10.27-12.27 mg-eq/100 g, cation exchange capacity – by 9.76-11.34 mg-eq/100 g, and the degree of soil saturation with bases – by 2.66-4.00%. Periodic monitoring of changes in agrochemical and agrophysical indicators is necessary to reduce the risks of degradation and preserve the fertility of leached blacksoil.
Analysis of water supply sources in Kormilov district of Omsk region
Authors: Kondratyeva T L , Ushakova I G , Trotsenko I A , Korchevskaya Yu V , Gorelkina G A 
Published: February 2021

Abstract
The article describes the sources of water supply inKormilovka district of Omsk region. The main sources of water are surface waters of the Om and Taburga rivers, lakes and artificial reservoirs, groundwater. In general, the territory of Kormilovka district lacks fresh groundwater. Currently, water is supplied by hydraulic structures on the Omriver as part of water intake and treatment facilities, water pipelines and a pressure distribution network. Water supply from underground sources is carried out from tubular wells with a depth of 5.0 - 9.0 m, from wells with a depth of 200 m and deep-water wells of about 1100 m. Water intakes from underground sources are available in almost all rural settlements, but they are used for technical and (or) economic purposes. An ecological assessment of the state of surface and underground sources isprovided. The results of an analysis of the geological and hydrogeological situation are presented. Of greatest interest are Neogene-Quaternary, Upper Oligocene-Lower Miocene and Lower Upper Cretaceous (Pokursky) complexes. According to the generalized characteristics of quality of groundwater from three underground aquifers in Kormilovka district, the most acceptable is the Pokursky aquifer, since itsgroundwaters are less mineralized, softer, more protected, and, consequently, their microbiological and parasitic indicators comply with the sanitary standards. When using both surface and groundwater for household and drinking purposes, it is environmentally safe for the population only after adjusting such indicators as turbidity, color, chlorine, iron, and dry residue content and bringing the microbiological indicators to SanPiN 2.1.4.1074-01 and SanPiN 2.1.4.544-96.
Priorities and strategies for the development of the agroindustrial complex of the Rostov region
Authors: Kurochkin V N , Shcherbak N A , Nazarenko S A 
Published: February 2021

Abstract
The article presents the results of research on priorities and strategies for the development of the regional agro-industrial complex. The research is based on actual materials on planning and management of the agro-industrial complex of the Rostov region of the Russian Federation. The analytical analysis has been carried out on the basis of regional development patterns, organization laws and the theory of planning and forecasting. In contrast to the dominant methods of spontaneous market regulation of agricultural production, it is proposed to use strategic management methods based on the identified priorities and the methods of economic stimulation of agro-industrial clusters development. Application of these methods will increase the efficiency of the region’s agro-industrial complex.
Ventilation of grain in metal silos of large capacity in the South of Russia
Authors: Kechkin I , Ermolaev V , Ivanov M , Yakovchenko M , Gurkovskaya E , Glebova I 
Published: February 2021

Abstract
The peculiarity of grain storage in the South is that it is required to supply a standard air volume of at least 10 m3*h/t to a silo filled with a formed batch of grain during ventilation. It is not possible to meet this requirement under the existing condition of the silos. The silos are not equipped with air flow control devices, they are equipped with ventilators with different characteristics, that have different designs and sizes of devices for air movement. There are cases of ventilation with minimal volumes of air supply, which contribute to the development of storage molds that degrade the quality of the grain. Fulfillment of the recommendations and installation of additional equipment on a large-capacity metal silo allows for the supply of the standard volume of air to the grain layer in any silo, regardless of the configuration and design features and thermos-physical parameters of the air inside the large-capacity metal silo. When the air parameters inside the silo change, active ventilation of the grain throughout the entire ventilation period and an increase in the values of relative humidity and air temperature in the intergranular space of the upper grain layer and in the over-granular space occur, the ventilation must be stopped. An increase in the values of relative humidity and temperature in the upper layer of the grain and in the above-grain space occurs due to the transfer of heat and moisture from the deep layers to the upper part of the silo.
Influence of natural and technogenic factors on the complexity of construction of timber highways
Authors: Kozlov V G , Skrypnikov A V , Samtsov V V , Nikitin V V , Boltnev D E , Borovlev A O 
Published: February 2021

Abstract
The article discusses the issues of assessing the possibility of road construction using engineering-landscape zoning. The complexity of the conditions for the construction of a lumber road, the value of agricultural land and territories of various economic uses, and the location of territorial complexes are determined. The dependence for calculating the total unit cost of road construction is presented. The work has shown a correlation analysis, which made it possible to establish the most important characteristics of the components of the geographic environment, which affect the complexity of the construction of a timber haul road by type of cost. The graphs characterizing the changes in the cost of expenses by type of work are presented, depending on the characteristics of the relief, water erosion, types of soil, population density. Using the dependence graphs, it seems possible to determine the basic cost of building one kilometer of the road by type of work. The basic cost is determined by the dependence that has a greater correlation ratio.
Medical Waste Processing Planning on Hospital Ship 124 M
Authors: Jumineti D , Santoso A , Mardianto  
Published: February 2021

Abstract
Indonesia is an archipelagic country which has 16,056 islands in 2018. One of the efforts to equalize health facilities in archipelagic areas and accelerate the delivery of health facilities when disasters and accidents occur using hospital ships. The operation of hospital ships will produce hospital waste that needs to be treated to reduce the adverse impact on the environment. Some hospital wastes that are toxic in nature are categorized as B3 waste (Hazardous and Toxic Materials). This waste treatment needs to be regulated so that the ship’s medical area and the ship’s operational environment remain healthy, clean and well-maintained. In this study, it is planned to treat hospital ship waste starting from the grouping of waste in the medical area, calculating the amount of waste generated, diagrams of waste treatment to produce a standard operating procedure that is acceptable and applied according to the analysis on the hospital ship. This research was conducted by making a numerical model based on hospital ship data on the BRS (Bantu Rumah Sakit) ship which is currently still under construction at PT PAL Indonesia (Persero). The results of the calculation of medical waste obtained in this study were 318 kg / day with details of non-infectious waste 254.4 kg / day, sharp object waste 3.18 kg / day, chemical and pharmaceutical waste 9.54 kg / day, pathological waste and 47.4% infectious and 3.18 kg / day of broken tube and thermometer waste. Based on the results of this calculation, a suitable waste treatment design and SOP are made that can be applied to the BRS ship.
Standardization of 30 Gross Tonnage (GT) Danish Seiner
Authors: Pamungkas R S , Purwanto H , Sunardi  
Published: February 2021

Abstract

Cantrang – Danish Seiner is growing rapidly in the north coast of Java Seas-Fisheries Management Area 712. In recent year, there have been many issues regarding the prohibition operation of seiner fishing gear impact sustainable fisheries, Cantrang owners and fishermen livelihood due to the regulation of fishing gear and the mark down of Gross Tonnage measurement. This research attempt to obtain preliminary data on Danish seiner operating in Indonesia, as set base design for 30 GT Danish seiner standard includes the scope of the principal dimensions of the seiner, main engine powering and the layout of deck for fishing operations. The method uses purposive sampling of 30 GT Cantrang, number of population 148 Cantrang of 30 GT at 4 regencies; Tegal, Batang, Rembang and Pati. The result of this research are the main measurement value - the ratio of principal dimension, main engine power, and deck area and Cantrang Danish seiner operation. The standardized 30 GT Cantrang has the following maximum main dimensions: Length (L) = 18.21 meters, Width (B) = 6.58 meters and Deck Height (D) = 2.00 meters with L / B ratio = 3.29-3.33, L / D = 11.2 - 2.74, B / D = 3.96-4.26. The main engine power 1 engine 160-190 HP and for 2 engines 2 × 120 HP. The deck area of 70-80 m2 significantly impacts Cantrang fishing gear operation
CFD analysis of the increase in ship resistance due to biofouling growth represented by roughness length scale
Authors: Regitasyali S , Hakim M L , Utama I K A P 
Published: February 2021

Abstract
Fuel consumption is heavily influenced by ship resistance, which mostly consists of friction resistance. During her operation, a ship is susceptible to the attachment of biofouling to its hull. The arbitrary form of biofouling induces an increase in surface roughness, which is responsible for the increase in friction resistance. This research analyses the increase in skin friction resistance due to biofouling, that is represented by a few variations of roughness length scale, in various orders throughout the models. Two-dimensional models of flat plates are utilized to investigate this issue by means of computational fluid dynamics (CFD) analysis. This study uses models with 0.56 m length to be tested in five Reynolds numbers, to be compared to a similar experiment conducted by using wind tunnel. Other models include 30 m and 60 m length to be tested in two Reynolds numbers each. It is found that the increase in skin friction reaches 3.5 – 31.4% for 0.6 m, 68.1 – 206.9% for 30 m with extreme regular roughness and 117.3 – 129.3% for 30 m with extreme irregular roughness, and 59.5 – 179.6% for 60 m with extreme regular roughness and 123.5 – 128.9% for 60 m with extreme irregular roughness.
Numerical Analysis of the Resistance Force of Floater of Wave Glider and Flapping Motion of Single Wave Glider NACA-0012 Foil
Authors: Erwandi  , Widodo  
Published: February 2021

Abstract
In 2020, the Agency for the Assessment and Application of Technology – Indonesia (BPPT) is designing wave glider systems for Tsunami Early Warning System. The wave glider systems consist of two components, the floater at the water surface and the wave glider submerged 2 meters or more below the water surface. Wave glider contains several foils that can flap up and down due to the heave and pitch motion of the floater so that the system affords the force to move forward. This paper describes the numerical analysis of the resistance of floater and the selection of the pivot position of the foil where it flaps. The speed of the floater is set from 0.3 m/s up to 1 m/s. NACA-0012 is selected as the first choice of the foil. It flaps in pure pitch motion and coupled pitch and heave motion in the different pivot positions. The flapping frequency is set to 0.1 Hz since the peak period of the wave about 10 seconds. The surge forces due to the flapping motion are then analysed to determine the best position of the pivot. The numerical simulation shows that the pivot position at 2.5% - 5% of chord length from the leading edge of NACA-0012 generates the optimum surge force.