bluuebunny/crossref_metadata_2025 huggingface dataset:
The learning tool for electric circuit and mathematics logic integration
Authors: Fitria Y , Helsa Y , Hasanah F N
Published: November 2019

This research is motivated by the lack of the primary teacher education students’ critical thinking skills. This problem occurs because the learning model given by the lecturers cannot improve the students’ critical thinking skills. This study aims to improve critical thinking skills of the primary teacher education students and develop learning tools in the form of the lesson plan (RPS), lesson instructions (SAP), and instructional materials based on Problem Based Learning for the subject ‘Basic Concepts of Science in Primary School 1’ This study uses ADDIE development model and the participants of the study are the first semester students in Educational Institution (LPTK) Region A and B. The practicality is seen through the results of SAP implementation, the students’ and lecturers’ response to the questionnaire in the LPTK PGSD region A and B. The effectiveness is seen through the process of assessment, observation, and critical thinking ability tests. The collected data are analyzed descriptively. The results showed that the developed RPS, SAP, and teaching materials for the integration of electric circuit and mathematics logic using Problem Based Learning with a mean of 96%, 95%, and 96% can be stated in a very valid category in terms of content, language, and graphics. The result of SAP implementation observation is 84%, the students’ response to the questionnaires is 83%, and the lecturers’ response to the questionnaire is 91%. These results indicate that the learning tool developed is practical. The results of the critical thinking skills process assessment in the A region is 83%, while B is 84%, the observations of critical thinking activities in region A is 82.2%, while B is 81.9%, and the critical thinking skills tests in which N-gain scores for regional A is 0.6, while B is 0.7. In conclusion, the tools are effective to improve the students’ critical thinking skills.
Naïve Bayesian classifier algorithm and neural network time series for identification of lecturer publications in realizing internationalization of Universitas Negeri Semarang
Authors: Walid  , Alamsyah
Published: November 2019

The Naïve Bayes Classifier is a classification method rooted in the Bayes theorem. The main characteristic of the Naïve Bayes Classifier is the very strong (naïf) assumption of the independence of each condition/event. If X is the vector that enters the feature and Y is the class label, Naïve Bayes is written with P (X | Y). This notation means that the probability of a class Y label is obtained after the X features are observed. This notation is also called the posterior probability for Y, while P (Y) is called the prior probability Y. One of the important factors included in the UNNES internationalization assessment is the results of lecturer publications both at the national and international levels. The artificial neural network as one of the information processing systems designed by imitating the workings of the human brain in completing a problem by doing the learning process through changes in synaptic weight can be used to analyze the productivity of the performance of UNNES lecturers and staff in realizing the year of reputation proclaimed in 2017 Research related to this theme has been carried out in 2017 and shows that the factors of knowledge and behavior of lecturers and education staff have the most influence on the achievement of the year of reputation at FMIPA UNNES in 2017.
Effect of resin composition with Alumina (Al2O3) and Silica (SiO2) on the X-Ray radiation absorbent dose at Lung-Phantom production
Authors: Susilo  , Masturi  , Hardyanto W , Mosik  , Handayani L , Santoso S , Setiawan R
Published: November 2019

The ability of X-ray energy in the world of health is very useful to diagnose human organ, particularly the lung. The human lung is a very complex organ so the examination takes certain techniques to minimize the effects of radiation exposure. A lung phantom made from resin composition with alumina (Al2O3) and silica (SiO2) was developed to eliminate negative effect of radiation. The purpose of this research is to find the closest value of density (D) and coefficient of attenuation (μ) from the composition to be used as another alternative lung phantom. The lung phantom was made by different thickness of each composition of stepwedge. The method used was comparing between the density (D) and attenuation coefficient (μ) of the sample and the lungs as a reference. The results were analysed using MATLAB 2015a Application with ROI grayscale reading. It was concluded that the composition of optimum lung phantom produced which is closed to reference value is 50% resin-Al2O3 content with density (D) of 0.16, and 50% Resin - SiO2 composition with density (D) of 0.18.
Development of biology teaching management textbooks based on competency and conservation to maximize Pedagogical and Content Knowledge (PCK) the prospective teachers
Authors: Sukaesih S , Ridlo S , Saptono S
Published: November 2019

The objectives of this research are: (1) to examine the feasibility of competences and conservation-based textbook of Biology teaching management, (2) to test the effectiveness of the developed textbooks in the small and large-scale test. This study is an Educational Research and Development (R & D) following the stages of potential and problems analysis, data collection, product design, product validation, trial usage, product revision, and mass production. The results of the feasibility assessment of the product by the expert, the textbook have content the very feasible criteria (77,88), and media experts gave very feasible criteria (83,35). In the small-scale test, the students responded that the book had met the criteria of excellent legibility, on 14 indicators of product legibility with an average legibility value of 90,07. The textbook legibility is excellent since the sentence is understandable and communicative, has illustration adequacy, easy to use, relevant to the competences achievement, as well as there is the integration of conservation character values and TPACK description. The large-scale test showed that the application of the developed textbook was effective in maximizing the ability of prospective teachers’ PCK. It is found that competences and conservation-based Biology Teaching Management textbook are very feasible and powerful to maximize the PCK of prospective biology teachers.
Mathematical writing ability based on Stacie Lefler’s theory
Authors: Parastuti R H , Usodo B , Subanti S
Published: November 2019

Mathematical writing is one communication tool that always used by students especially when they trying to solve a problem. It becomes one of the student’s necessities to make it easier to find the right answer. It also trains students to solve problems coherently, completely, and clearly. Mathematical writing ability is important for students in Junior High School because it to know how they write the mathematical sentences in problem-solving. Teachers also need it to know how far their students can convey an answer through mathematical writing. The students’ mathematical writing ability will be measured on a particular dimension. The research method used is qualitative with the students of Junior High School as subjects. Based on the data analysis is found that on the dimension of accuracy, students are able to write answers and respond to the questions minim accuracy. On the terminology, students not use mathematical terms. In mathematical explanations, students’ explanations are minim and not thorough. It because that their written explanation is too short and minim sentences.
Graph theory as a tool to track the growth of student’s mathematical creativity
Authors: Suyitno A , Suyitno H , Rochmad  , Dwijanto
Published: November 2019

The essence of studying mathematics is the growth of mathematical creativity. The candidate of mathematics teachers need to know how to cultivate the mathematical creativity to students at school. The problem: How to cultivate students’ mathematical creativity through Graph Theory learning as the subject of lecturing? The goal, using Graph Theory as a tool to track the growth of mathematical creativity of students. The research method with qualitative approach which data analysis include: data reduction, data presentation, data interpretation, and conclusion/verification. The results of this research: (1) Graph theory can be used as a tool to cultivate the students’ mathematical creativity, by applying it to the open ended problems. (2) Based on the solution of the open ended problems, interviews, and triangulation, the students’ mathematical creativity can be grown. (3) The growth of students’ mathematical creativity has the Good categorical tendency. Suggestions: (1) The students need to be motivated about the importance of mathematical creativity. (2) The growth of mathematical creativity should be tracked also through other the subjects lecturing.
Location of Sinabung volcano magma chamber on 2013 using simulated annealing inversion scheme
Authors: Kumalasari R , Srigutomo W , Djamal M , Meilano I , Evita M , Gunawan H
Published: November 2019

Volcano has been monitoring using GPS after his eruption on August 2010. We Applied Simulated Annealing Inversion Scheme to GPS data on 2013, first we applied Simulated Annealing to velocity data on 23 January 2013 then we applied Simulated Annealing Inversion Scheme to data on 31 December 2013. From our analysis we got the depth of the pressure source modeling results indicate some possibilities that Sinabung has a deep magma chamber about 14km and also shallow magma chamber about 1km from the surface.
The influence of right and left brain intelligence on mathematics learning achievement
Authors: Lusiana R , Suprapto E , Andari T , Susanti V D
Published: November 2019

This research aims to determine the effects of right and left brain intelligence on mathematics learning achievement. This research used a quantitative approach with ex post facto research type involving learning achievement as the dependent variable and right brain acumen and left brain intelligence as an independent variable. The subjects in this research are seventh-grade students in junior high school in Madiun. The data collection instrument used is the mathematics achievement test and the right and left brain intelligence questionnaire. Data analysis in this research uses simple linear regression. The results of the research showed that there was an influence between the intelligence of the right and left brains on students’ mathematics learning achievement. The influence of right brain intelligence is 28%, and left brain intelligence is 46.7%.
Organophospate exposure time impact on acetylcholin-esterase activity
Authors: Dewi I G A K S P , Suarsa I W
Published: November 2019

This study aimed to determine exposure time needed by organophosphate pesticides (OPs) to decrease acetilcholinesterase (AChE) activity in wistar rats. Twenty-five male were divided into 5 groups. The control group without OPs exposure (K0), the group exposed to OPs for 1 week (K1), and groups (K2), (K3) and (K4) exposed to OPs for 2,3, and 4 weeks respectively. The blood sample was taken every week and the AChE activity of blood sample was measured using a spectrophotometer. The results showed that AChE activity decreased with the longer OPs exposure time. Exposed treatment for 3 weeks (K3) 162.80 ± 4.56 U/L showed a significant difference (p <0.05) on control (K0) 499.20±6.99 U/L. The results showed that the AChE activity of (K3) significanly decreased 162,80±4,56 U/L compared to control (K0) 499.20 ± 6.99 U/L. In conclusion Exposure OPs pesticide 3 weeks can reduce AChE activity.
ICT literacy of high school mathematics teacher: online learning competence with heutagogical approach
Authors: Purnomo J , Jailani
Published: November 2019

The purpose of this study is to determine the level of literacy of high school mathematics teachers. This research is a descriptive research that describes the literacy of high school mathematics teachers based on the analysis of questionnaires that are filled by teachers who come to the Center for Development and Empowerment of Mathematics Teachers and Education Personnel (CDEMTEP/PPPPTK Matematika) and teachers who access PPPPTK Matematika’s web, followed by high school mathematics teachers from various provinces in Indonesia. The research was conducted from May 5 to June 29, 2018. The results showed: (1) ability to use basic computer 55.07% good, and 44.93% moderate; (2) ability to create and use ICT-based learning media 7.97% good, 82.61% moderate, and 9.42% less; (3) ability to use Internet 39.13% good, and 60.87% moderate; and (4) the ability to use social media, the data obtained shows that five respondents did not answer. One respondent answered that they did not have social media. Most of the respondents have more than one social media. 52% of respondents who answered stated using WhatsApp. Ninety-three points two percent of respondents stated using Facebook. 52.27% of respondents use more than one social media.
Analysis of junior high school students’ errors in solving HOTS geometry problems based on Newman’s error analysis
Authors: Priliawati E , Slamet I , Sujadi I
Published: November 2019

Geometry is the most important material to be learned in school. But the fact that there are still many students often makes errors in resolving the problems of geometry. This research focuses on analysis students’ errors in solving Geometry problems among junior high school students in every higher order thinking skills level. This research used a qualitative descriptive method aimed to identify the students’ errors based on Newman’s error analysis. The errors are associated with planes and related problems. Data collection was done based on students’ work through test and interview. The errors were analyzed according to Newman’s Error Analysis Model consisting of reading, comprehension, transformation, process skills, and encoding. The result revealed that the students having errors according to Newman’s error analysis in every higher order thinking skills level, they are analyzing, evaluating, and creating.
The ability of mathematical literacy on learning treffinger realistic assistance schoology
Authors: Maulana D F , Wardono  , Marwoto P , Mariani S
Published: November 2019

This research aims to determine the quality of learning through Treffinger realistic model assistance schoology and to know the improvement of students’ mathematical literacy skills on Treffinger realistic learning model assistance schoology. This research was a quantitative research with pretest-posttest control group design. The population of this research was the students of class VII of SMP Negeri 6 Semarang academic year 2017/2018. The sample was class VII C as the experimental class and class VII D as the control class. The technique for collecting data used observation and test methods. The results showed that the quality of learning model of Treffinger realistic assistance schoology has good category; the improvement of students’ mathematical literacy skills through Treffinger realistic learning model assistance schoology is higher than the improvement of literacy ability of students using PBL.
Biomass burning; ultrafine particles, concentration, and organ effect
Authors: Wardoyo A Y P
Published: November 2019

Biomass burning has been known as a PM0.1 emission source that may have an impact on health. In this research, we investigate biomass burning ultrafine particles, PM0.1 in terms of the concentration and the exposure impact on mice organ. We used two biomass burning such as pine wood and grain straw burning. The smoke was exposed to the mice for 100 seconds, and the effect on the organ was observed including lung, kidney, liver, and erythrocytes. The effects on the organ damage were related to the PM0.1 dose concentration. The particle dose concentration was calculated by summing the total concentration of an ultrafine particle in the smoke. The PM0.1 concentration emitted by the pine wood burning was 1.4 × 106 particles/cm3 meanwhile, the concentration of the grain straw burning was 2.7 × 106 particles/cm3. We observed the exposure effects on the mice organ with the results as follows: every biomass burning produced PM0.1 with a certain concentration. The effects of biomass burning PM0.1 emission on organ depended on a kind of biomass and the particle dose concentration. Lung was the organ having the most effect on the biomass burning particle exposures among the other organ.
Features of the cultivation technology of carrot hybrids in dry steppes of the Lower Volga region on drip irrigation
Authors: Bolkunov A I , Postnova M V , Sroslova G A
Published: November 2019

The paper studies the technology of the hybrid carrot cultivation with drip irrigation in a zone of the Lower Volga Region dry steppes. Carrots prefer medium-sized soil having the medium soil horizon and the pH of 6.0-7.5. However, it is cultivated in the majority of soil types. The crop yield depends on the quality the soil is cultivated with. Carrot taproots prefer the soil density of 1.0-1/3 g/cm3, so it is necessary to provide optimal water and air conditions of the soil. Sowing is done with pneumatic, electronic and mechanical seed drills. Pneumatic seed drills equipped with the metal pressure wheel, the tyne coulter, the small wheel for post-sowing pressing, the rubber wheel for soil smoothing and the distribution disk rotating in a direction opposite to seed drill wheels show the best seeding precision. The carrot cultivation performed under the conditions of the Lower Volga Region is possible only by means of irrigation. Carrot can be watered by corrugation, spray and drip irrigation methods.
Phytotoxic assessment of sewage treatment methods in disposal sites
Authors: Pisarenko P V , Samoylik M S , Korchagin O P
Published: November 2019

The paper presents the assessment of the impact of disposal sites on biota through definition of phytotoxic influence of polluted soil and landfill leachate on seedlings, growth and root system of plants Triticum aestivum. It is found that soil collected around a disposal site of municipal solid waste, the seedlings of plants are 16% lower in comparison with standard (clean soil), the length of a land part is 22% lower, the average length of roots is 44% less. The green weight of top and the weight of a root system of plants in the soil from a disposal site is 52% and 43% less respectively. This influence is characterized as above the average toxicity level. It is defined that with the introduction of Sviteco-PBG prebiotic (10% dilution) to the polluted soil the seedlings of plants are 5.2% better in comparison with the polluted soil without the prebiotic, the length of a land part – by 11.6%, the average length of roots – by 40.2% respectively; the green weight of top and the weight of a root system of plants is 14% and 16.5% higher in comparison with the polluted soil without the prebiotic. Thus, the use of prebiotics allows improving the quality of soil and reducing its phytotoxicity. In particular, if the influence on a root system of the polluted soil is characterized as toxic above the average, then after the application of prebiotics – as the average toxicity by root weight and absent (weak) toxicity by root length. It is found that when Sviteco-PBG (10% dilution) and Ca(OH)2 are added to sewage waters of a MSW dump at pH 10, their maximum purification from heavy metals is reached, the phytotoxic effect is estimated as weak toxicity. The phytotoxic effect of the polluted filtrate without purification – above the average toxicity. Thus, prebiotics allow improving the efficiency of soil cleanup from heavy metals, giving an opportunity in the long term to return contaminated land to their economic circulation. Ca(OH)2 and Sviteco-PBG (10% dilution) at pH 10 allows improving the quality of technogenically polluted soil, reducing toxic impact on biota and increasing the efficiency of sewage treatment in waste disposal sites.
Accumulation of heavy metals in melliferous plants in the territory of Nagaybaksky district of Chelyabinsk region
Authors: Yakovleva S N , Fatkullin R R
Published: November 2019

Due to rapid development of industry and transportation, mining intensity, and active use of chemicals in agriculture there is a sharp rise in the level of heavy metal pollution of natural environment, which mainly affects soil and plants. Excessive accumulation can lead to the destruction of the natural complex integrity. The pollution of heavy metal environment is one of the most pressing environmental problems. It has become particularly relevant in recent years since it closely intersects with another global problem – getting ecologically pure foodstuff. The studies concern the heavy metal content of the six species of inflorescence melliferous plants summer temporary generation grown in the territories around apiaries of Nagaybaksky district.
Cultivation of corn hybrids on the expected nutritional background in the Volga region of the Republic of Tatarstan
Authors: Mikhailova M U , Talanov P I
Published: November 2019

This article describes the specific conditions of nutrition of adaptive hybrid corn with ears to obtain high planned yields in the phase of milk-wax ripeness of grain on the gray forest soil of the Volga region of the Republic of Tatarstan in 2013-2015. As a result of the research it was found that the maximum increase in the area of the leaf surface was formed against the background of application of the calculated doses of fertilizers on 70 t/ha with sowing of corn hybrid Flint 200 (30.71 thousand tons). m2/ha), greater accumulation of plant biomass on the same background was observed on crops using the Newton hybrid (33.0 t/ha). The maximum yield formation (to 65.3 t/ha) was observed when making NPK 70 t/ha and the sowing of hybrid Newton, yield of green mass of corn on the background without fertilizers depending on sown hybrids amounted to 34.3-38.4 t/ha. In addition to this embodiment, it is noted the best nutritional value food and the best profitability 39.2 per cent, against 24.8 per on the background without fertilizers.
Impact of ethno-cultural component on the development of agricultural land use of Russian Germans living in the Altai Territory
Authors: Korneeva A V , Kosacheva T A
Published: November 2019

The scientific interest in the problems of ethnicity and the ethnic culture is reasoned by the process of globalization and the development of intercultural communications. The studies of ethnic groups and cultures are extremely relevant in connection with the formation of ethnic groups at different levels of development, of intra-ethnic cultural differences, including territorial ones, as well as inter-ethnic cultural similarities. The transformation of ethnic culture occurs under the influence of various factors, including geographic location, landscape, and neighborhood with other ethnic groups, mutual compliance. Global political and economic changes influence the ethno-cultural differentiation. The article analyzes the current sociocultural situation in rural areas with compact residence of the Russian Germans in the Altai Territory, discusses the factors influencing the development of the ethno-cultural component.
State support for development of rural areas in Samara region
Authors: Pyatova O F , Shumilina T V , Chumakova O V , Mirgazimova S M
Published: November 2019

The state support programs for rural areas of Samara region was analyzed. Changes in the rural infrastructure were assessed by rural residents.
Analysis of the condition of forest shelterbelts of the agro-climatic zone in Stavropol territory using the example of “luch” enterprise of Blagodarnensky region
Authors: Kasmynina M , Odintsov S , Loshakov A , Gorbachev S
Published: November 2019

The development of sustainable management by forest shelterbelts is one of the initial factors in the agricultural and forest sector. A long, productive, economically interesting interrelation of anthropogenesis and forest ecosystems entails a stable management of forest shelterbelts. In order to preserve forest resources and forest areas, a solid foundation is needed to exploit the needs of the future of humanity. The development of indicators of sustainable development of forest ecosystem use is rapidly moving all over the world. Forest shelterbelts have such undeniable features affecting the environmental factor as a unique forest floor, unique herbaceous plants, specific animal world, a rare microclimate, the direction of the soil-forming process, etc. The main economic role of forest plantations is certainly protective. Forest plantations have a positive impact on the state of agricultural land due to the ratio of various forms of land use, as well as the introduction of washed and semi-washed plots into economic circulation. Sometimes, forest belts also get into the risk zone; this can be due to both natural conditions and human exposure.
Influence of agro-technical reception on agro-physical state of soil and efficiency of cultivation of sugared sorghum in conditions of light-chestnut soil of Volgograd region
Authors: Efremova E N , Lebed N I , Averina M B , Mezhevova A S , Kolmukidi S V
Published: November 2019

The key problem of modern farming is the search for an alternative to traditional arable farming, which leads to a permanent decline in soil fertility, primarily to a decrease in organic matter and significant loss of moisture. The study was aimed at studying the effect of waste and zero tillage on the agro-physical indicators of the soil, yield, sugar accumulation dynamics and the economic efficiency of cultivation of a sugar sorghum hybrid Slavic homestead. The experience was conducted in Commercial Farmers Association “Kuznetsovskaya”, Ilovlinsky District of the Volgograd Region, on zonal subtypes of light chestnut soils in the period from 2009 to 2015. Research methods were used according to generally accepted methods and recommendations. When considering the effect of treatments on soil density, there was an increase in soil compaction due to zero tillage. When determining the state of aggregation of soil by zero tillage, the number of valuable aggregates was 69.43 % versus 65.43 % for land tillage. The coefficient of structure was zero tillage. The yield of sugar sorghum amounted to 54.7 t/ha, which showed an increase of 7 % relative to dump soil treatment. The zero tillage profitability ratio was 104 %. The transition to zero processing will provide increased productivity, reduce the need for labor and technology, reduce the time for field work, make it more optimal, increase the income of agricultural enterprises, increase the wages of workers and improve their social conditions, which is an important economic and social advantage of resource-saving technology.
Analysis of the phytosanitary condition of agrocenoses depending on soil treatment in the Urals conditions
Authors: Vasilyeva T N , Alyaeva O V , Biktasheva F H , Ivanova E A , Lebedev S
Published: November 2019

One of the urgent problems of reducing crop yields is the unsatisfactory phytosanitary condition of the fields, leading to economic losses in agriculture, especially when switching to resource-saving technologies [1, 2]. The aim of the work is to study the phytosanitary condition of agrocenoses depending on the method of tillage. For this, plots were laid in the Orenburg district of the Orenburg region. As a result of the experiments carried out with various processing methods, it was noticed that in experiments with small loosening, the amount of weed-field vegetation increased by 2 times, for example, FPV (phenoceptic threshold of harmfulness) of Panicum miliaceum L. was exceeded by 36 times, revealed a change in life forms towards xerophytic flora. On the same experimental plots conducted a study on the presence of root rot. In the experiment with deep tillage (plowing) of spring wheat, 46% of the plants affected by Fusarium rot were observed, and 50% of the plants affected by the pathogen were counted on the experience in tillage.
Stimulation of ruminal digestion of young cattle with oak bark extract (Quercus cortex)
Authors: Atlanderova K N , Makaeva A M , Sizova E A , Duskaev G K
Published: November 2019

The significance of rumen for the body of ruminants determines the prospects for improving the efficiency of ruminal digestion, which can be achieved through the use of probiotics, antimicrobial metabolites and other drugs. Recently, plant extracts of medicinal plants have been actively used, for example, oak bark extract (Quercus cortex). Based on the results of recent studies, antiquorum substances are one of extract components. According to the results of in vitro study, it was established that addition of oak bark extract (OBE) in various concentrations into ruminal fluid (RF) affects enzymatic activity and is accompanied by a change in feed digestibility from 2.42% (P <0.05) to 7.13% (P <0.01). The greatest digestibility is achieved after the introduction of OBE in a dosage of 3.3 mg/ml. The use of EKD leads to an increase in the pH of the ruminal fluid to 6.7-6.8 and stimulation of enzymatic activity of microorganisms, therefore, leads to an increase in digestibility and absorption of nutrients.
The association of polymorphic variants of growth hormone gene with slaughter traits and carcass composition in crossbred Red Angus × Kalmyk bull-calves
Authors: Kayumov F G , Gerasimov N P , Emel’yanenko A V , Tret’yakova R F , Sangadzhiev R D , Alimova S A
Published: November 2019

The purpose of research was to study the association of polymorphic variants of growth hormone gene with development, slaughter traits and carcass composition in crossbred Red Angus × Kalmyk bull-calves. The experiment was carried out at LLC “Agrofirma Aduchi” in Republic of Kalmykia. The object of the study was crossbred Red Angus × Kalmyk (F2) bull-calves. The use of Red Angus sires with a high concentration of G allele in GH gene in the reproduction system of a herd made it possible to obtain second-generation crossbred progeny with a genotype distribution of 0.0625: 0.5: 0.4375, respectively, VV: LV: LL. The frequency of V allele reached 0.3125. The superiority of heterozygous individuals in live weight reached 18.0 kg by the age of 18 months (P>0.05). The maximum carcass weight was established in the group of heterozygous individuals, their superiority was 25.3 kg (P <0.01). The advantage in carcass yield of carriers of the minor allele V was 1.7% (P<0.05). The heterozygous animals were superior in flesh part weight in half-carcass by 11.1 kg (P <0.001). A less pronounced intergroup difference was found in bone weight, which reached 1.2 kg (P> 0.05). The monitoring the genetic structure of the herd taken into account the allelic distribution in growth hormone gene will provide the development of meat productivity potential.
Influence of thyroid status on the content of essential chemical elements in the body of laboratory animals
Authors: Notova S V , Kiyaeva E V , Miroshnikov S V , Kazakova T V
Published: November 2019

The purpose of this study was to identify the characteristics of the redistribution of chemical elements in various biosubstrates when modeling thyrotoxicosis and hypothyroidism in animals. Male Wistar rats were the object of the study. Animals of the first experimental group were intraperitoneally injected with L-thyroxine to simulate the state of experimental thyrotoxicosis. Animals of the second experimental group were injected merkazolila to simulate the status of experimental hypothyroidism. The third group was the control group. The obtained data demonstrated the effect of thyroid status on mineral metabolism. The greatest changes in the elemental status were found in the thyroid gland: a high content was found in hypothyroidism Cr (p<0,05), V (p<0,05), Co, Fe, As, Ni, Mn, Se, Zn and lower values I (p<0,05) and Si (p<0,05); with hyperthyroidism – a higher content of Co (p<0,01), Ni (p<0,05), Cu (p<0,05), Zn (p<0,05), Cr (p<0,05), Li, V, Mn and lower content of Si (p<0,05). When comparing the experimental groups, statistically significant differences were revealed: hyperthyroidism was accompanied by accumulation of Cu, Zn, I in the thyroid gland; hypothyroidism - As, Se and V. Statistically significant lower values of Cr, Cu, Ni, Se, Si, V, Zn and a tendency to lower As, I, Fe and Mn values were recorded in the bone tissue of animals from the experimental group I, in animals of experimental group II a higher content of almost all the studied microelements was observed, however, statistically significant differences were obtained only in terms of As (p<0.05) and Ni (p<0.05). In the hair of animals, when modeling hyperthyroidism and hypothyroidism, higher values of Fe, Se, Si, V, Cr were observed as compared to the control.
Genetic characterization of Akhal-Teke horse subpopulations using 17 microsatellite loci
Authors: Ustyantseva A V , Khrabrova L A , Abramova N V , Ryabova T N
Published: November 2019

Akhal-Teke is the ancient cultural horse breed of oriental origin. The study of genetic features different subpopulations of Akhal-Teke breed was carried out on 17 loci of DNA microsatellites (VHL20, HTG4, AHT4, HMS7, HTG6, AHT5, HMS6, ASB23, ASB2, HTG10, HTG7, HMS3, HMS2, ASB17, LEX3, HMS1 and CA425) to assess their genetic differentiation. The results of DNA typing of 5457 Akhal-Teke horses on 17 microsatellite loci show that gene pool of world population is represented by 121 alleles, among which 98 are found in all countries. Comparative analysis of genotypes of horses representing different subpopulations indicates that they differ in the number of alleles (100-117), allele frequencies, the level of polymorphism Ae (3.40-3.91) and the degree of observed heterozygosity Ho (0.661-0.724). The genetic distances between the subpopulations varied in range from 0.007 (Russia – CIS) to 0.051 (Czechia – Turkmenistan). Correspondence to HWE was maintained in all countries, which confirms the negative value Fis. Genetic options of the Akhal-Teke by index Fst varied in a range 0.001 -0.078 at the mean value Fst=0.022. Cluster analysis demonstrated more close relationship between Russian, CIS and European subpopulations.
Diversity of Kabardian horses and their genetic relationships with selected breeds in the Russian Federation based on 17 microsatellite loci
Authors: Khaudov A D , Duduev A S , Kokov Z A , Amshokov H K , Zhekamuhov M H , Zaitsev A M , Reissmann M
Published: November 2019

17 standard microsatellite loci, used for horse identification and origin control, were deployed for studying the genetic structure of Kabardian breed. The observed (Ho) and expected (He) heterozygosity, level of polymorphism (Na), polymorphism information content (PIC), and fixation index (Fis) were calculated. The results of microsatellite analysis were used for description of the Kabardian breed at the population level. The distribution and frequency of microsatellite alleles was compared with Russian populations of Arab and Thoroughbred horses.
Taxonomic structure of rumen calf microbiome when feeding with a fat supplement
Authors: Nurzhanov B S , Levakhin Yu I , Rakhmatullin Sh G , Duskaev G K
Published: November 2019

It is known that the use of native fats for feeding ruminants causes an inhibitory effect on the rumen microflora. One of the problems with the use of fats protected by various technologies is a change in the composition of the rumen microflora. It is necessary to improve existing and create new types of protected fats.

The research object was 12 red steppe calves divided by three groups - the control one and two experimental ones (n = 3). The animals of experimental group I were fed with a Palmatriks fatcontaining supplement at a dose of 0.4 kg/head, and the animals of group II - an experimental supplement (ES) at a dose of 0.25 kg/head.

The use of Palmatrix contributed to the growth of Firmicutes microorganisms (1.74%), Candidatus Saccharibacteria (by 4.5%), Actinobacteria (by 1.83%) and reduced the number of Bacteroidetes bacteria (5.19%), Verrucomicrobia (by 0.75%). Feeding pf group II with ES increased the number of Saccharibacteriageneraincertaesedis bacteria (by 14.77%) in comparison with experimental group I. The combination of fat supplements with components reduced the number of Bacilli, Negativicutes and Bacteroidia bacteria by 14.77%, 9.54 and 8.12%, respectively.
Identification of GDF5 gene polymorphism of bull-calves of the Kalmyk breed
Authors: Harlamov A V , Frolov A N , Zavyalov O A , Miroshnikov I S , Muslyumova D M
Published: November 2019

The study covers bull-calves of the Kalmyk breed (n=182) aged 12-14 months. It considers the impact of polymorphism of the growth differentiation factor 5 (T586C in exon 1) ensuring development, maintenance and restoration of bones and cartilage on body parameters, body weight and musculoskeletal diseases. The frequency of occurrence of TT alleles in selection made 48.9%, TC – 46.7 and CC – 4.4%, χ2 test – 4.94. Bull-calves with CC genotype surpassed their analogues with TT and TC genotypes in terms of growth intensity and body measurements. The analysis of non-contagious musculoskeletal diseases (arthritides, bursitides, arthrobursitides) since birth until the 12th month of age revealed diseases among 17 heads (19.1%) with TT genotype, 9 heads (10.6%) with TC genotype and absence of diseases with CC genotype. There is a need for further study with increasing the group of animals with C homozygous genotype.
Assessment of productivity and adaptability of Camelina Sativa varieties
Authors: Turina E L , Prakhova T Ya , Prakhov V A
Published: November 2019

The aim of this research is to assess the varieties of winter camelina in terms of productivity and adaptability in a contrast agroclimatic environment of the Middle Volga region and the region of steppe Crimea in 2016–2018. The climate of the Middle Volga region is moderately continental. The precipitation varies from 350 to 750 mm a year. The average year temperature is 5.3 °C. The climate of the steppe Crimea region is continental. The average year temperature here is 15.1 °C and the precipitation varies between 350 and 450 mm a year. In average the yield of different camelina varieties fluctuated between 1.59 and 1.83 t/ha, depending on the environment condition index (Ii -0.19–0.46). In the Penza region, the Kozir and Baron varieties gave the biggest yield with the productivity of crops equal to 1.80 and 1.83 t/ha respectively. In Crimea, the biggest yield was given by the Dikiy variety (1.74 t/ha). The variability of productivity is low at 7.4–10.1% and medium at 11.5–13.2%. The Baron variety has a low variation factor (7.4 and 11.5%) regardless of a cultivation region. All varieties had high stability which was 1.20–1.25 and 1.30–1.46 depending on a region. The Baron and Kozir varieties had the highest stability reaching 1.46 and 1.25 respectively. All varieties had a high index of stability for this crop, equal to 0.50–0.59. Camelina is tolerant of all stress factors and forms a stable yield in different cultivation conditions. All varieties showed a great ecological adaptivity and flexibility with the bi values equal to 1 and varying between 0.92–1.07. The most stable and flexible variety in the case of the Penza region is Baron (bi=0.92; σdr2=0.07) while in the region of Crimea it is Kozir (bi=0.99; σdr2=0.07). The Dikiy variety has high adaptivity parameters in both regions (bi=0.93–0.97; σdr2=0.06). The variance analysis showed that the share of “variety” factor influence is from 38.4% (the Penza region) to 39.2% (Crimea). In the variety-region relationship the influence of a variety is 40.6%. The share of “years” factor influence is 21.7–24.6%, depending on a region.
Influence of calculated doses of mineral fertilizers and biological products during presowing seed treatment on barley yield
Authors: Minikayev R V , Talanov I P , Ganeeva R M
Published: November 2019

Abstarct

The research found that the best field germination of seeds and the safety of plants for harvesting was noted in the variant with the introduction of calculated doses of mineral fertilizers (N139R72K83) and spraying of crops with a biological product Azotovit JO, 0.3 l/ha and amounted to 87.6 and 86.9 %, against 83.3 and 82.5 % on the variant without the treatment of seeds and crops with biologics. The maximum contamination of barley crops was noted on the background without mineral fertilizers and seed treatment and biopreparations in the tillering stage amounted to 30-37 pcs./m2, and high rates of weeds air-dry mass were in the variant with mineral fertilizers (N139P72K83) and amounted to 3.56 g/m2 on the version without treatment of seeds and crops with biological products. The introduction of calculated doses of mineral fertilizers N113P60K68 and N139P72K83 and seed treatment with Trichodermine, F and Azotovit JO led to a greater decrease in the infestation of plants with root rot. The best development of the leaf surface area occurred in the earing phase of plants with the introduction of calculated doses of mineral fertilizers N139P72K83 and the presowing treatment of seeds with Azotovit JO and amounted to 37.4 thousand m2/ha. High yield of barley grain (3.88 t/ha) was formed with the application of mineral fertilizers N139P72K83 and the pre-sowing treatment of seeds with the Azotovit Zh0 biological preparation, the increase from the application of fertilizers was 2.10 t/ha, from the presowing treatment of seeds - 0.32 t/ha. The best indicators of grain quality were noted with the introduction of mineral fertilizers N139P72K83 and pre-sowing treatment of seeds with the biological preparation Trichodermin, J.
Crop productivity and variety differences in the content of major nutrient elements in the seeds of garden bean
Authors: Porsev I N , Polovnikova V V , Subbotin I A , Abylkanova A O
Published: November 2019

Bean is a valuable food plant. According to the sown area in the world, bean takes the second place after the soybeans among the cereals (about 24 million hectares). In Russia the area for it is about 53 thousand hectares. The average yield of the varieties of garden bean seeds in the South Transurals on the average for 3 years of study formed at a good level and amounted to the following varieties: Rubin – 2.31, Snezhana (Krasnodar) – 2.54, Oran – 2.12 t/ha. Vegetable bean varieties formed a good crop for the climatic zone, respectively: Moscow White (standard) – 2.75, Sobrat (Krasnodar) – 1.53, Amalthea (Krasnodar) – 1.79 t/ha; Novosibirsk vegetable bean varieties: Darina – 1.53, Solnyshko – 1.47, Viola – 1.40, Yantarnaya – 1.47 t/ha. It is established that there are varietal differences, i.e. the reaction of varieties on the accumulation of nitrogen, phosphorus and potassium in the seeds.
Prediction method of the variants of annual field work complexes and its implementation
Authors: Dokin B D , Elkin O V , Aletdinova A A
Published: November 2019

The prediction method of the variants of annual field work complexes provides justification for machine and tractor fleet structure. It gives a graphical view of the load of power machines, evaluation and selection of mechanization equipment for a particular job or complex of works, taking into account the condition that the cost of equipment should be covered by a decreased number of employed operators and harvest losses. The authors propose an algorithm for the implementation of this method, which has led to the creation of a program Agro. A simulation is carried out using the example of a model agricultural organization. The authors confirm the inverse relationship between increasing the power capacity of tractors and the need for machinery.
Amino acid composition of beef obtained fromthe specialized meat cattle
Authors: Alekseeva E , Kolchina V
Published: November 2019

The article presents the study results of the amino acid composition of beef obtained from young Aberdeen-Angus and Hereford breeds. It has been established that meat is a complete amino acid product. At the same time, the protein quality indicator of beef obtained from the young of Aberdeen-Angus and Hereford breeds of the age of 12 months was 5.55 and 5.34, and from the bulls of the age of 18 months - 5.73 and 5.49, the methionine: tryptophan ratio – 1.22 and 1.23. The youngsters of the age of 18 months of the studied breeds have the same content of aspartic acid in meat, it is 2.03 g/100 g. A comparative analysis of the concentration of essential amino acids in beef showed that there was more of valine, histidine(-amino-5-imidazole propionic acid), lysine, threonine and phenylalanine in the bullheads of Hereford, than the peers of Aberdeen-Angus breed by 3.30, 4.26, 1.11, 7.14 (P> 0.05), and 4.76%, respectively. The concentrations of valine, isoleucine, methionine and tryptophan were higher in Aberdeen-Angus than in Hereford by 3.30, 2.50, 2.00 and 2.50%, respectively. Analyzing the study results of beef on the content of replaceable amino acids in bulls of the age of 18 months, the advantage in concentration of alanine, glycine, glutamic acid, serine, tyrosine, cystine was on the side of Aberdeen-Angus breed, the difference with peers of Hereford breed was 6.50 (P> 0.05), 2.25, 8.28 (P> 0.05), 56.72 (P> 0.001), 1.10 and 9.09 (P> 0.05)%, respectively. and the quantity of solid eutectoid inclusions based on electron compound Cu31Sn8.
Development of algorithms for processing and transmitting remote sensing data from unmanned aerial vehicles
Authors: Bolodurina I P , Parfenov D I
Published: November 2019

Currently, various types of robotic systems are used to collect primary data. For example, UAVs can be used to collect various types of melon required for analyzing the effectiveness of agricultural operations and predicting the yield of certain types of crops. The problem of the transfer of information accumulated by the UAV, its analysis and making management decisions remains an urgent task. As a rule, wireless sensor networks are used to transfer data to a UAV, the main problem of which is the low bandwidth of the channel. To improve the efficiency of data transmission over low-speed communication channels and the subsequent processing of the information flows of the UAVs, it is necessary to develop traffic routing methods. As part of the study, an approach has been developed that allows taking into account not only the state of the communication channel at the current time but also to predict its characteristics ahead of time.
Pre-clinical studies of reparative properties of fetoplacental peptide bio-regulators
Authors: Pereryadkina S P , Ushakov M A , Kocharyan V D , Bakanova K A
Published: November 2019

Cell technology can bring veterinary medicine to a new level of development. Despite the success of modern veterinary medicine, this area is understudied having enormous opportunities and unexpected dangers. This article provides experimental data on the effect of the biologically active preparation “FPB” on laboratory animals, artificially created models of the inflammatory process. We took into account the effect of placental preparation on rat embryogenesis and embryo developmental abnormalities, since the ultimate goal of this preparation is treatment of the obstetric-gynecological pathology in dairy cows. The studies have shown that the use of drugs based on the fetoplacental complex (10%-30%) stimulates reparative and regenerative skin properties. The local irritant effect of 10% and 30% drug on the mucous eye membrane and skin of rats upon was not pronounced. In a series of experiments on reparative properties of the drug, burns caused skin hyperemia with marked exudation on the skin surface. On the sixth day of the study, the area of the burn decreased by 5.8% in the first group, by 7.7.% in the second group, and by 2.4% in the control group. On the 15th day, the blisters became crusted, in 65.0% of the animals, their rejection was observed. The area of the wound decreased by 68.0%, while in the the control group, it decreased by 31.8%. The biologically active placental preparation did not have mutagenic and embryotoxic effects during the critical periods of embryo development.