bluuebunny/crossref_metadata_2025_split huggingface dataset:
The use of Immunostimulants for the animal diseases prevention
Authors: Makarova V N , Koryukina M V , Badeeva O B , Simanova I N 
Published: March 2021

Abstract
Biostimulant - splenivit helps to increase the natural resistance of the body of young farm animals and reduce morbidity. To study splenivitis, groups of sows (60 heads each) were formed. The animals of the first experimental group were injected with tissue antigen, twice 20 and 10 days before farrowing, in doses of 3 and 5 ml. The animals of the second experimental group, simultaneously with tissue antigen, were injected with splenivit at a dose of 5 ml, three times, with an interval of 10 days. And also, to 122 fattening piglets - weaners: the 1st experimental group (31 piglets) was injected with splenivit intramuscularly 1 ml 3 times with an interval of 7-10 days. The 2nd group of pigs (29 heads) was injected with a non-specific gamma globulin according to the same scheme; in the 3rd group of pigs (62 heads) the above preparations were not used. Clinical observation of all piglets was carried out for 1.5 months, starting from the day of the formation of groups for fattening. For prophylactic purposes, newborn calves with gastroenteritis in the experimental group (13 heads) were injected subcutaneously with a biostimulator - splenivit, 1.0-1.5 ml, from 2-3 days of age, three times, with an interval of 7 days, in the control (7 heads) this drug did not apply. Also, the effectiveness of the stimulant - splenivit was studied on fattening calves. Experimental group (206 heads), control group (104 heads). Splenivit for the prevention of gastrointestinal diseases in animals, increases the natural resistance of the body, helps to reduce the incidence of young animals, improving growth and development and ensuring their maximum safety. To increase immunological protection, prevent gastrointestinal diseases, safety and productivity of animals, it is advisable and effective to use a biostimulator - splenivit.
Genotoxicants in marine and freshwater fish of the Barents Sea Basin
Authors: Utkina A S , Karagodin V P , Agapkin A M , Kotelevtsev S V 
Published: March 2021

Abstract
A comparative genotoxicity of marine and freshwater fish as indicators of the ecological hazard of the aquatic environment of the Barents Sea basin was analyzed. We used the Ames Salmonella/microsomes test to study mutagenicity of various tissues and liver fat of polar cod, sea bass, common whitefish and river bass with subsequent chromatography-mass spectrometry analysis of liver fat samples for the content of genotoxicants (organic pollutants). No significant excess of mutagenic activity was found in all fish samples except polar cod liver fat and sea bass liver fat. Promutagenic action caused gene mutations of both frameshifting and base pair substitution. Analysis of fat samples using the method of chromatography-mass spectrometry confirmed the presence of persistent organic pollutants in marine fish fat. The findings indicate that at present the ecology of the Barents Sea basin rivers is in more favorable conditions than the ecology of this sea.
Investigation of the D-loop sequence of mitochondrial DNA of the Volgograd sheep breed
Authors: Kolosov Yu A , Fedorov V Kh , Shirokova N V , Chamurliev N G , Vorontsova E S 
Published: March 2021

Abstract
The paper presents the results of studies of the sequence of the D-loop of mitochondrial DNA of the Volgograd sheep breed. Mitochondrial DNA has a number of unique features that make it possible to effectively use markers based on it in phylogenetic studies of a wide range of organisms.
Genetic structure of the herd by genes GDF9, GH, CAST in merino sheep of the North Caucasus region of Russia
Authors: Shirokova N V , Kolosov A Yu , Kolosov Yu A , Getmantseva L V , Bakoev N F , Vorontsova E S , Kolosova N N 
Published: March 2021

Abstract
One of the main tasks in sheep breeding is to increase productivity. The use of DNA markers for the selection of animals containing the desired alleles of genes of economically valuable traits is one of the new scientific approaches to solving this problem. The aim of the work was to study the genetic structure of sheep of various breeds by genes GDF9, GH, CAST. The studies were carried out on the basis of the laboratory of molecular diagnostics and biotechnology of farm animals of the Don State Agrarian University and the Center for the collective use of scientific equipment “Bioresources and bioengineering of farm animals” of the All-Russian Scientific Research Institute of Animal Husbandry named after academician L.K. Ernst. To carry out molecular genetic studies, samples of ear pits (tissue from the auricle) with an area of 1 cm2 were taken from sheep. The evaluation was carried out by PCR-RFLP method. As a result of DNA genotyping for genes GDF9, GH, CAST, the genetic structure of sheep of such breeds as: Salskaya, Stavropol, Volgograd and Soviet merino was revealed. A and B allelic variants of the GDF9 gene, alleles A and B of the GH gene, alleles A and B of the CAST gene were identified in all studied groups of sheep. Analysis of the data revealed the breed aspect in the distribution of the allele and genotype frequencies of the GDF9, GH, CAST genes in the populations under consideration.
International joint research: current situation and challenges for the Japan-Russia collaboration in the field of agriculture
Authors: Lyude Anna , Boiarskii Boris , Hasegawa Hideo 
Published: March 2021

Abstract
International communication has sharply increased between educational and research institutions in the various sciences between Japan and Russia amidst globalization’s rapid progress. Niigata University has been deliberately increasing collaboration with counterparts in the Russian Far East in the field of agriculture. However, literature comprehending current trends and issues of the bilateral joint research is insufficient. It implies strategical evaluation of the existing projects’ efficiency and allocation of future collaboration tasks and funding. This study aimed to grasp the actual situation of Japan-Russia international joint research and its implications for agriculture. The authors used the Web of Science database aggregated by Clarivate Analytics to evaluate the general condition of research output and international joint research in both countries, fields of bilateral co-authorship, and Niigata university collaborative projects’ results in terms of publication output in agricultural sciences. Results demonstrated steady efforts to promote international joint research in both countries. However, in terms of the research field, the bilateral relations are strongly manifested in materials science and physics, where the co-authorship rate is high. Agricultural sciences remain insignificant in bilateral cooperation. The number of co-authored publications has slightly increased due to the projects run by the Niigata university from 2015, both in Russian student enrolment and joint research specializing in agriculture. Therefore, the present study concluded that further profound qualitative and quantitative research on factors fostering bilateral collaboration, including international students’ role, is needed.
Estimation and validation of stem volume equations for Pinus sibirica in Russia
Authors: Zavarzin V V , Lebedev A V , Gemonov A V 
Published: March 2021

Abstract
Stem volume models using diameter at breast height (DBH) and height were developed for Pinus sibirica. The data were obtained from Irkutsk Oblast (Eastern Siberia), Tyumen Oblast (Western Siberia) and Sverdlovsk Oblast (Ural). Logarithmic scale models that are widely used in forestry, which are often used to model stem volume and tree biomass, were slightly inferior to models using the response at the original scale. The obtained models can be used for forest inventory, and the proposed methodological approaches can be used for modeling the stem volume of other tree species.
Rice estate areas: a sociocultural and institutional model for lowland rice farming
Authors: Saleh A , Surahman M , Purwono  , Sugiyanta  , Hamzah  , Zamzami A , Desrial  , Wetik J D 
Published: March 2021

AbstractThe rice cultivation business is dominated by small farmers with average land ownership of less than one hectare. Consequently, all efforts that have been made were unable to improve the farmer’s welfare. The small land ownership is a problem in applying mechanization, technology adoption, and management efficiency. The consolidation of the agricultural system in the form of an agricultural, institutional model is essential to be developed to achieve farming efficiency, profit, and, in turn, and farmer’s welfare. An agro-socio-cultural and institutional model was designed to overcome problems faced by farmers. The study was conducted in Banjarnegara and Purbalingga Regencies, Central Java. The study applied FGD and survey methods. The results showed that most farmers’ age was 60 years, and their educational attainment was a primary school, owned less than 0.7 hectares of land size, low technology adoption rates, and yield of fewer than four tons/ha. The condition causes the farmers to get low income, with an amount of fewer than three million rupiahs/month. Sociocultural conditions, land potentials, institutions, access to capital, and product marketing were the basis for developing an institutional model of rice farming. An institutional model concept was offered in the form of management consolidation. Several farmers gathered in a joint venture called the Rice Estate Community (REC), with approximately 300 hectares. Management consolidation supported mechanization application, science and technology transfer, easier access for market access and capital for rice farming. The REC was a model delivering farming efficiency and prosperity to farmers.
Management strategy for household food security in Jambi Province
Authors: Suandi  , Napitupulu D M T , Damayanti Y , Effran E 
Published: March 2021

Abstract
This research was aimed to: (1) analyze household food security and (2) formulate a strategy managing household food security in Jambi Province, Indonesia. The research design was a cross-sectional and conducted in four selected districts in Jambi Province, mainly: Kerinci, Merangin, Muaro Jambi, and Tanjung Jabung Barat Districts. This research was done in six calendar months. The object of this research was farm households with research variables: (1) household food security and (2) strategies for managing household food security based on internal factors (aspects of strengths and weaknesses) and external factors (aspects of opportunities and threats). Data was collected using observation, direct interviews, in-depth interviews, Focus Group Discussion (FGD), and documentation methods. The number of respondents was 100 households at each district, which was chosen taken by cluster stratified simple random sampling in each sample district. The total sample was 400 households. Data were analyzed by using the SWOT approach. The results, of the analysis show that the population in Jambi Province is in the food secured level. Based on the SWOT analysis results Jambi Province household food security could be developed in an aggressive strategy.
Agronomic responses of several rice varieties on ratoon salibu system
Authors: Putera H R , Junaedi A , Wirnas D , Sakagami J 
Published: March 2021

Abstract
Salibu rice cultivation is one of the technological innovations to spur productivity or increase production. Salibu technology (modified ratoon) is a rice cultivation technology that utilizes rootstocks after harvest to produce shoots or tillers for nurturing. These shoots function as seeds in a transplanting system. Cutting treatment on the first generation of salibu crop started when the mother plant harvested at 132 days after sowing at 20 cm above the soil surface, and then re-cut seven days after harvest at 3-5 cm above the soil surface. Cutting treatment on the second generation of salibu crop started when the first generation of salibu crop harvested at 94 days. The results showed that the Batang Piaman variety has the best agronomic responses on the ratoon salibu system because the yield was 60% for the first generation of salibu and 62.5% for the second generation of salibu. Ketan Grendel variety the product was 70.5% for the first generation of salibu and 55% for the second generation of salibu.
Combinations of seaweed extract and NPK on vegetative growth of chili growing under glasshouse condition
Authors: Yusuf R , Syakur A , Awalni F , Kalaba Y 
Published: March 2021

Abstract
Chili (Capsicum frutescens L.) is one of the horticultural crops having many benefits, namely as a cooking spice and a mixture of the food industry. Chili plants need N, P, and K for growth, provided in the form of NPK fertilizer or Seaweed extract as organic fertilizer. This study aimed to determine the effect of various combinations of seaweed extracts and NPK on the vegetative growth of chili. The experiment was arranged based on a randomized complete block design with seven treatments and three replications, so 21 experimental pot was obtained. The treatment of the combination of seaweed extract and NPK fertilizer application was T1 = seaweed extract of Ulfa sp. 100 ml/pot, T2 = seaweed extract of Caulerpa sp. 100 ml/pot, T3 = seaweed extract of Sargassum sp. 100 ml/pot, T4 = 0.5 gNPK fertilizer/pot, T5 = Ulfa sp. 100 ml/pot and 0.5 NPK, T6 = Caulerpa sp 100 ml/pot and 0.5 NPK, T7 = Sargassum sp. 100 ml/pot and 0.5 NPK. The results showed that the T1 treatment produced better results compared to other treatments.
Effects of gibberellin (GA3) on the physical quality of oil palm fresh fruit bunches
Authors: Sudradjat  , Sugianta  , Siregar H A , Purwanto O D 
Published: March 2021

Abstract
Gibberellin (GA3) is known as a plant growth regulator that can stimulate the plant growth and develop the cell and widely used in maintaining the storability of some types of fruit. This research aimed to study the effects of gibberellin concentration, time of gibberellin application and the interaction of both on the physical quality of oil palm fresh fruit bunches. The experiment used a factorial of randomized complete block design with three replications. The first factor was the time of gibberellin application with two levels (pre-harvest and post-harvest), while the second factor was gibberellin concentration with five levels (0, 25, 50, 100 and 200 ppm). Post-harvest treatments of 25 ppm gibberellin reduced the respiration rate, fruit weight loss, number of fruit loss of bunches and mesocarp firmness. Application of gibberellin with concentration 25 ppm after harvesting was the best treatment to maintain the physical quality of fresh fruit bunches (FFB). Time of harvesting is one of the factors affecting the quality of palm oil. After harvesting, FFB should be processed at mill within a maximum of 24 hours because it will increase the content of free fatty acids (FFA) and reduce the content Crude Palm Oil.
Nano silica spray increase Phalaenopsis pulcherrima growth and resistance against Dickeya dadantii infection
Authors: Nisaq G J , Sudarsono S , Sukma D 
Published: March 2021

Abstract
Soft-rot disease because of Dickeya dadantii infection has hampered orchid production in the tropics. Induced resistance using nano-silica may be used to control the soft-rot disease. Nano-Si increases resistance by forming a silica layer on the plant epidermis. Nano-Si has a larger surface area. This study aims to determine the appropriate concentrations of silica to induce resistance to D. dadantii in Phal. pulcherrima. The experiment was set up in a single factor trial and various nano-Si concentrations (0, 7.5, 15, 22.5 and 30 ppm) with an application interval of 3 days for 120 days. The application volume was 4 mL per plant. Each treatment was repeated three times. Statistical analysis was done using ANOVA and mean comparison using LSD. After inoculation with D. dadantii, leaf of Phal. pulcherrima was observed for 48 HPI. The results showed that plant treatment with nano-Si at 30 ppm caused the slowest expansion of the soft-root symptom diameter compared to other concentrations. Si is a promising compound to increase Phal. pulcherrima growth and resistance against D. dadantii infection.
The influence of Mount Merapi eruption on the water balance in Kali Kuning sub-watershed
Authors: Sari J A K , Kusumandari A 
Published: March 2021

Abstract
The national park area has a function in conserving the water in the catchment area. This study aimed to compare the changes of the water balance before and after the eruption and to analyse the drought index. This study uses Thornwaite and Mather water balance analysis by calculating the amount of water input and output. The results showed that the water balance in the Kali Kuning sub-watershed was surplus in the wet months, namely January-April and November-December. Meanwhile, the deficit occurs during the dry months, namely May-October. The condition of the water balance in the Kali Kuning sub-watershed before and after the eruption changes but was not significant due to factors of land use, rainfall and temperature before and after the explosion did not change significantly. Before the outbreak (2006-2010), the drought index tended to decrease due to high rainfall every year, while after the explosion (2011-2019) it tended to increase due to changes in land use conditions. Mount Merapi eruption resulted some part of the forest in the Kali Kuning sub-watershed turned into open land.
Characteristic and quality microbiology solid soap citronella oil with the addition of Lactobacillus brevis
Authors: Pratama Y E , Jamsari  , Yuherman  , Melia S , Purwati E 
Published: March 2021

Abstract
Lactic acid bacteria have the potential as probiotic candidates, where probiotics provide many benefits for humans and animals. The use of probiotics in the formulation of fragrant Citronella oil (Citronella oil) soap is expected to kill the pathogen E. coli and S. aureus commonly found on the skin’s surface. This study aimed to determine the addition of lactic acid bacteria in the formulation of fragrant lemongrass soap. Besides, cow’s milk in the formulation aims as a prebiotic for probiotic bacteria during the saponification of solid soap. The method used was a randomized block design with five treatments (A = 0ml, B = 2ml, C = 4ml, D = 6ml and E = 5ml) with each of the four treatments. The addition of Lactobacillus brevis NRC0138 in the formulation of fragrant Citronella oil soap affects the soap’s pH value, moisture content, foam power, and antimicrobial activity. L. brevis can survive in an alkaline atmosphere with an initial pH of 14 and the saponification process for 14 days because strain-dependent to survive and adapt to environmental conditions.
Mining Influence Law’s Application in Coal Bed Gas Extraction Engineering
Authors: Hu Bingnan , Zhang Peng , Guo Wenyan 
Published: March 2021

Abstract
Aimed at further improve the efficiency of coal bed gas extraction, the coal bed gas extraction technology and temporal & spatial law of mining influence are elaborated in this paper. The characteristics of ground movement and deformation, the failure zones in overburden strata, the heights of caving zone and fracture zone in overburden strata, and failure scope in underlying strataare analyzed. According to coal bed gas extraction technology, the requirements of ground movement, deformation, and failure degree are ensured. Based on the laws of coal mining influence and failure in surrounding rock, the principle of coal bed gas extraction engineering design is put forward. It has certain reference value.
An Optimal Allocation Model of Sea Area Utilization Based on Factor Endowment
Authors: Kang Minjie 
Published: March 2021

Abstract
Factor endowment characteristics are important factors to be considered in Marine zoning and Marine spatial planning. How to allocate marine space resources is an important issue in Marine zoning and Marine spatial planning. In this paper, an optimal allocation model of sea area utilization is constructed based on factor endowment. According to the difference of factor endowment of different sea areas and the difference of factor structure of intensive use of different sea areas, the model realizes the division of sea area utilization among different sea areas which giving full play to the advantages of factor endowments of sea areas in various regions and improving the utilization efficiency of sea areas. It can provide theoretical reference for Marine zoning and Marine spatial planning.
Study on Suitable Water Resource Irrigation Rate of Tomato under Solar Greenhouse in Autumn
Authors: Mao Ke , Xiao Huaijuan , Li Juanqi , Du Qingjie , Tian Qiaoling , Wang Jiqing 
Published: March 2021

Abstract
The shortage of water resources is increasing worldwide. For saving water resources, the study of horticultural plant water saving irrigation technology has greatly ecological and social significance. In this experiment, tomato was used as the test material with drip irrigation technology. Under same fertilizer rate, three levels of irrigation water were set: High irrigation Water (HW), Medium Irrigation Water (MW) and Low Irrigation Water (LW). The effects of different Irrigation levels on growth, yield, water use efficiency and soil nutrient content were investigated. The results show that the plant height and the accumulation of soil nutrients declined while the yield and water use efficiency increased with the decrease of irrigation rate. The average plant height of LW tomato was significantly lower than that of HW. Compared with HW, tomato yield and water use efficiency under LW increased by 6.6% and 65.4%, respectively, and the average irrigation rate decreased by 55.21%. The accumulation of N, P and K under LW in the 40∼60cm soil layer was significantly lower than HW by 37.3%, 78.5% and 60.9%, respectively. LW has a positive effect on the increase of tomato yield and the reduction of nutrient leaching and accumulation.
Power Generation Simulation and Comparison of p-PERC and HIT Bifacial Modules
Authors: Jiang Yashuai , Zhuang Hao , Sun Guan , Huang Huoping 
Published: March 2021

Abstract
As p-PERC and HIT being the two representative high-efficiency cell technologies, the matched bifacial module solution has become an important means to reduce LCOE. This article emphasized on the effects of different installation environment on generated power based HIT and p-PERC bifacial modules in Beijing. The power generation of HIT and p-PERC bifacial modules are subject to the same changing trends in different installation environment. The change in power generation with tilt is similar to a parabola, and the optimal installation tilt varies from 25° to 35°. The power increases almost linearly with the height above the ground or the albedo. The HIT bifacial modules show more advantage in energy generation due to lower temperature coefficient and higher bifacility factor.
Calculation of Vacuum Pump Sucking Rate in Fishing Suction Equipment of Trawler
Authors: Shi Xiaomin , Jia Senjun 
Published: March 2021

Abstract
Sucking rate is an important parameter for the design of vacuum pump, in order to obtain the accurate sucking value. Above all, sucking process of vacuum-pump is analyzed in fishing suction equipment, and then by means of Boyle-Malot’s law, a new equation is deduced, and a new method is improved after analyzing calculation formulas about sucking rate of vacuum-pump at the present time, this paper provides basis for selecting and design vacuum-pump in fishing suction equipment. After using the new formula to calculate the sucking rate, the damage rate of fish is greatly reduced in fishing suction.