scholarly journals Current state and problems of poultry breeding in Russia (review)

2020 ◽  
Vol 21 (3) ◽  
pp. 217-232
Author(s):  
E. S. Fedorova ◽  
O. I. Stanishevskaya ◽  
N. V. Dementieva
Keyword(s):  
Genomic Selection ◽  
Global Scale ◽  
Farm Animals ◽  
Breeding Value ◽  
Main Task ◽  
Homogeneous Population ◽  
Snp Data ◽  
Poultry Breeding ◽  
Genetic Value ◽  
High Level

Modern poultry breeding in Russia is one of the fastest growing sectors of agriculture, but the prosperity of the industry is almost entirely dependent on supplies of breeding material from abroad. Russia practically has no its own breeding base in both egg- and meat-type commercial crosses of chickens. Most of the domestic commercial crosses that had occupied leading positions in Russian poultry breeding have been lost now. More than 90 % of commercial lines of breeding stocks in Russia are imported. Foreign poultry breeding companies merge into transnational holdings engaged in multi-species breeding of farm animals, which allows them not to depend on market conditions in the industry. The reverse side of such a consolidation on a global scale is a decrease in the genetic diversity of poultry and a high level of inbreeding in commercial chicken lines. In these circumstances, there is a real biological danger for the preservation of these lines due to the potential susceptibility of “monocultures” to new diseases, which can eliminate the genetically homogeneous population. Any selection system is based on an assessment of the breeding value of potential parents. Its purpose is to obtain, as far as possible, the most accurate forecast of the genetic value of an individual and the productive qualities of its progeny. These requirements are optimally met by the BLUP methodology, in which molecular genetics (SNP) data can be successfully integrated, which allows supplementing the statistical analysis with genomic selection technologies. This is especially true for traits that cannot be measured, or can only be measured in one sex, or only at the end of the productive period. The inclusion of genomic selection methods in breeding programs makes it possible significantly increase the selection efficiency for the main economical traits of chickens. The main task in the Russian breeding poultry industry is the creation of its own competitive breeding base, not inferior to Western commercial crosses in terms of productivity. To create poultry breeding centers and grandparents/parents-breeding farms the state support is needed. It is also necessary to develop and implement innovative methods in the field of genomic selection, as well as software and information systems and specialized selection computer programs for processing and analyzing meta-data.

scholarly journals Genomic prediction across years in a maize doubled haploid breeding program to accelerate early-stage testcross testing

2020 ◽  
Vol 133 (10) ◽  
pp. 2869-2879
Author(s):  
Nan Wang ◽  
Hui Wang ◽  
Ao Zhang ◽  
Yubo Liu ◽  
Diansi Yu ◽  
...  
Keyword(s):  
Genomic Selection ◽  
Doubled Haploid ◽  
Early Stage ◽  
Low Cost ◽  
Phenotypic Selection ◽  
Breeding Value ◽  
Main Task ◽  
Training Population ◽  
Dh Lines ◽  
Stage Yield

Abstract Key message Genomic selection with a multiple-year training population dataset could accelerate early-stage testcross testing by skipping the first-stage yield testing, which significantly saves the time and cost of early-stage testcross testing. Abstract With the development of doubled haploid (DH) technology, the main task for a maize breeder is to estimate the breeding values of thousands of DH lines annually. In early-stage testcross testing, genomic selection (GS) offers the opportunity of replacing expensive multiple-environment phenotyping and phenotypic selection with lower-cost genotyping and genomic estimated breeding value (GEBV)-based selection. In the present study, a total of 1528 maize DH lines, phenotyped in multiple-environment trials in three consecutive years and genotyped with a low-cost per-sample genotyping platform of rAmpSeq, were used to explore how to implement GS to accelerate early-stage testcross testing. Results showed that the average prediction accuracy estimated from the cross-validation schemes was above 0.60 across all the scenarios. The average prediction accuracies estimated from the independent validation schemes ranged from 0.23 to 0.32 across all the scenarios, when the one-year datasets were used as training population (TRN) to predict the other year data as testing population (TST). The average prediction accuracies increased to a range from 0.31 to 0.42 across all the scenarios, when the two-years datasets were used as TRN. The prediction accuracies increased to a range from 0.50 to 0.56, when the TRN consisted of two-years of breeding data and 50% of third year’s data converted from TST to TRN. This information showed that GS with a multiple-year TRN set offers the opportunity to accelerate early-stage testcross testing by skipping the first-stage yield testing, which significantly saves the time and cost of early-stage testcross testing.

scholarly journals BANK OF GENETICAL RECOURCES – BASIS OF CREATION, DEVELOPMENT NEW AND PRESERVATION SMALL LOCAL BREEDS

2017 ◽  
Vol 53 ◽  
pp. 43-50 ◽  
Author(s):  
А. P. Krugliak
Keyword(s):  
Gene Pool ◽  
Optimal Number ◽  
Breeding Value ◽  
Prolonged Storage ◽  
Main Task ◽  
Black And White ◽  
Sperm Bank ◽  
Long Term Storage ◽  
World Collection ◽  
Genetic Value

The article presents  the methods of creation and results of bank genophound  functioning during 1976 – 2017 je. The conditions of selection organisation in cattle of the Ukraine during the term 1970 – 1980 je. and necessary of semenbank creation have been accounted. The importance of semenbank in creation new native specialized breeds dairy and  beef direction of productivity and preservation  genes of local breeds  of cattle have been accounted. The main task of the bank of genetic resources was the creation, prolonged storage of the necessary reserves of sperm, embryos and oocytes of animals with a special genetic value, similar to the world collection of plants at the Institute of Plant Sciences nd. M. I. Vavilov and their effective use in solving the most important breeding tasks:- removal of new breeds, types, lines, radical improvement of existing ones;- conservation of the gene pool and purebred breeding of the outbred type in the closed Populations of gene pool herds of local disappearing and local indigenous breeds, as well as reproducers of specialized breeds established in Ukraine;- Selective use of the gene pool of animals of various species and breeds in the future 25 years or more during the reproduction of pure-breed herds (breeds) that have disappeared, if necessary, on the mother stock of another breed. During the period from 1976 to 2000, 1.7 million spermodoses of outstanding bulls of 22 milk, 12 beef breeds and more than 15 domestic genotypes were placed in the sperm bank. The presence of gene pool stocks of sperm ensured the efficient use of outstanding animals at the breed level as a whole, which became the basis for the accelerated withdrawal of new red and white and black-and-white dairy, Ukrainian beef breeds. The formation of the genealogical structure of the lines, plant types of these rocks was provided exclusively through the gene pool of the sperm bank of the institute. .In the Ukrainian red and white  dairy breed, 10 plant lines (Improver, Supreme, Hanover, Mayerdeil, Regal, Inhancer, Kavaer, Dinamnik, Nagit, Dayrimen) were derived, in the Ukrainian beef line - Euphemio line, Eoiziano; in the black and white dairy - the line of the Sudina. The gene reserves of semen of these ancestors of the lines are stored in the sperm bank for more than 20 years for use in prospective breeding. Scientists of the sperm bank determined the optimal number of sperm dosages for each breeding formation that needs to be preserved. To lay the line it is necessary to have 5,0 thousand spermodoses from its ancestor and 2,0 thousand of his best sons. From all bulls of local breeds is laid for a long preservation of 1,0 thousand spermodozes. The technology of deep freezing of sperm of other animal species (stallions, pigs) was worked out; the possibility of influencing certain factors on sperm in the course of their long-term storage was studied. It was found that, the duration of preservation of the gene pool stocks of semen of bulls from the selected breeds is determined by the level of their breeding value on a specific useful basis.

CONNECTION g.307 G > A SNP POLYMORPHISM OF THE ALPHA-FUKOZYLTRASFERAZA 1 GENE WITH ECONOMIC-USEFUL TRAITS IN THE LARGE WHITE PIG BREED

2017 ◽  
Vol 54 ◽  
pp. 134-140
Author(s):  
H. S. Rudoman ◽  
V. M. Balatsky ◽  
V. Y. Nor ◽  
V. O. Vovk
Keyword(s):  
Genetic Structure ◽  
Information Content ◽  
Analysis Of Variance ◽  
Farm Animals ◽  
Daily Weight Gain ◽  
Fixation Index ◽  
Its Sequencing ◽  
Large White ◽  
Stage Of Development ◽  
High Level

One of the top priorities at the present stage of development of pig breeding remains the development of a set of measures aimed at increasing the resistance animals to various diseases, especially – to colibacteriosis .One of the recent and effective approaches to prevent colibacillosis is using markers of selection; it involves pig genotyping by genome locuses. Chosen locuses are associated with animal sensitivity to the disease and selection of the results of genotyping of animals with increased resistance. Due to researches, one of such locuses is alpha-fukozyltrasferаza 1 gene (FUT1). Gene FUT1 is located in chromosome 6. As a result of its sequencing in the swine breeds of Large White and Swedish Landrace, single-nucleotide polymorphism (g.307 G > A SNP) has been detected. AA genotype determines the resistance of animals to colibacteriosis, while AG and GG genotypes are susceptible to this disease. According to the results of previous studies, the positive effect of allele A was determined not only on the resistance of pigs to colibacteriosis, but also on indicators of fattening and meat productivity and on reproductive performance. In Ukraine, the studies of polymorphism FUT1 g.307 G > A SNP were held fragmentedly and only on certain populations of Ukrainian Meat and Large White breed but without establishing its association with the indicators of productivity of pigs. The aim of our work was to study the genetic structure of Ukrainian Large White breeds, type 1 and the establishment of association. g. 307 G > A SNP FUT1 gene with pigs indicators of productivity. For research the 96 samples of hair were used. DNA isolation from samples with biomaterial were carried out using ion exchange resin Chelex-100. Genotyping was performed by PCR-RFLP by method of Jorgensen et al. (2006). Using DNA analysis of this breeds locus FUT1 was determined by genetic structure. Allele frequency of allele G (0,573) and allele A (0,427) was established The distribution of genotype frequencies was not statistically significantly different from the theoretically expected, calculated by the Hardy-Weinberg criterion. Thus, according to the locus of FUT1 g.307 G > A, the breeds investigated are in a state close to the genetic equilibrium. The negative value of the fixation index by the locus FUT1 g.307 G > A indicates an excess of heterozygotes in the population, and hence the lack of targeted selection for this marker. The valuation was performed by calculating the PIC (polymorphic information content) – information content of polymorphism marker. In the analyzed pig herd for this marker, the PIC has an average value (0,367), which indicates the high level of polymorphism of the given locus and is favorable for the possibility of conducting a search for links between individual genotypes and indicators of productivity. To establish the association g.307 G > A SNP FUT1 gene with indicators of animal productivity, a one-way analysis of variance of the experimental data was used. Based on the results of a one-way analysis of variance, a significant effect of the genotypes of the FUT1gene (g.1849 G > C) on the indicator of the average daily weight gain (р ≤ 0,001), the thickness of the bacon at the level of the VI-VII vertebrae (p ≤ 0.01), reaching live weight of 100 kg (р ≤ 0,001) and breeding index of fattening qualities (р ≤ 0,01) was found. The parameter of the influence of the genetic factor on the test feature was 28,54%, 10,4%, 33,4% and 8,8% respectively. According to the investigated indicators of productivity, animals with genotype AA, which determines resistance to colibacteriosis, dominated the animals with genotypes GG and AG. Based on the results of our research and pre-published data, the multiple effect of the g.307 G > A SNP FUT1 gene is observed, which is associated with the indicators of productivity, which again confirms the polygenicity of the quantitative trait loci of farm animals. Taking into account a high level of polymorphism of the investigated gene and reliable associations of genotypes with indicators of productivity found, it can be recommended to carry out breeding of pigs using genetic information of the g.307 G > A SNP gene FUT1.

Financial State of Utilities and Ways to Improve It

2021 ◽  
Vol 26 (1) ◽  
pp. 30-36
Author(s):  
Valentyna Glukhova ◽  
◽  
Kristina Kravchenko ◽  
Keyword(s):  
State Regulation ◽  
Public Utilities ◽  
Financial Policy ◽  
Main Task ◽  
Efficient Operation ◽  
Financial Condition ◽  
Transport Services ◽  
Fixed Assets ◽  
Utility Companies ◽  
High Level

Annotation. Introduction. One of the key tasks of the formation of a socially oriented economy is to ensure a high level and quality of life of the population, which implies the satisfaction of the most necessary needs of citizens in comfortable housing, energy, sanitary and technical, transport services, etc. Satisfaction of the above needs is possible only under the condition of the efficient and uninterrupted functioning of utilities, since the main task of the utilities is to provide the population with heat, water, gas, electricity and other services on which the comfort of housing, the state of human health, the constant mode of operation of enterprises, improvement districts, ecological state of settlements. The efficient operation of enterprises of communal ownership largely depends on their financial condition. Therefore, the study of the development and financial support of public utilities, the effectiveness of their activities is relevant, especially in the context of decentralization. Now, the problems of public utilities require much attention, among which their financial condition is significant. Purpose. The purpose of the work is to analyze and study the financial condition of utilities and develop proposals for its improvement. Results. The article considers, analyzes and compares such indicators of the financial condition of utility companies in some cities of Ukraine as: financial results, depreciation of fixed assets, return on assets, absolute liquidity ratio. Factors influencing the financial results of utilities have been identified. The main ways to improve the financial condition of utilities have been identified. Conclusions. According to the results of the analysis of their financial condition, the prevailing loss, high level of depreciation of fixed assets and low capital productivity of most enterprises in this industry have been determined. The reasons for this situation are the lack of effective directions of financial policy in this area, the imperfection of the regulatory framework and miscalculations in the management of financial resources. The current state of this industry gives grounds to talk about the need to improve the effectiveness of its state regulation in order to solve the basic problems of its socio-economic development.

Disparate Entwicklung der Wohnungsmärkte fordert die Politik

2014 ◽  
Vol 63 (1) ◽  
Author(s):  
Oliver Arentz
Keyword(s):  
Housing Policy ◽  
Low Income ◽  
Conflicts Of Interest ◽  
Housing Allowance ◽  
Main Task ◽  
Trading System ◽  
The Public ◽  
Site Development ◽  
High Level

AbstractThe regional differences in the housing markets are enormous and will continue to exacerbate in the future. The main task for the housing policy is to take appropriate long term measures depending on the market structure. A central aspect of future housing policy is the site development. Potential conflicts of interest with other social objectives must be detected and resolved. Creating a trading system for development rights appears to be promising. In order to secure housing for low income households, the housing allowance (Wohngeld) must be promptly adjusted to the market conditions. The public housing sector should be seen as an instrument for the stabilization of neighborhoods. Appropriate market rents secure a housing supply at a high level.

scholarly journals TRANSLATORS’ TRAINING: UKRAINIAN EXPERIENCE

2021 ◽  
Vol 25 (2) ◽  
pp. 112-135
Author(s):  
Ольга ЛЕМЕШКО ◽  
Валентина ГАПОНОВА
Keyword(s):  
Professional Training ◽  
Main Idea ◽  
Professional Activity ◽  
Successful Implementation ◽  
Main Task ◽  
Professional Programs ◽  
Translator Training ◽  
Training Programmes ◽  
High Level ◽  
Educational Professional

The main task of the higher educational establishment is to prepare graduates for modern dynamic national and international labour markets that demands to find the way into teaching practices, which can respond to the created expectations. Nowadays reality of the translation market reveals problems in translator training. Ukrainian teachers and scientists will have to re-think existing translator training programmes in terms of present-day market demands to professionals and to work out comprehensive educational professional programs. They should look for ways how to manage limitations caused by changes in the global situation taking into account that the profession of translator requires profound knowledge in various spheres of life. The successful implementation of future translators depends on their professional training that includes forming of communicative competence and also allows them to perform all the functional responsibilities provided for their profession. The main idea for this article is the relationship between the training process and the profession. The characteristics of today’s translation market have been examined and the issues that are addressed in modern translator training have been analysed. The definition of the term translation has been presented. Characteristics of translator’s professional activity have been distinguished and components of comprehensive educational professional programs were investigated. The requirements for a professional translator should be an integral part of the standard, as they are the subject of further elaboration. In international practice among the most important are the requirements of maintaining a high level of their own professional skills and knowledge, the ability to solve translation problems of a new type, the ability to translate and summarize texts in one language from another, regularly improve their skills. The content of the requirement, the characteristics of professional activity, the necessary knowledge and skills have been determined in the articles.

scholarly journals “Open” Category Unmanned Aerial Systems Harmonized Standards and Requirements Complex

2019 ◽  
Vol 25 (3) ◽  
pp. 74-80
Author(s):  
Andon Andonov
Keyword(s):  
Aviation Safety ◽  
Global Scale ◽  
Civil Aviation ◽  
Critical Conditions ◽  
Unmanned Aerial Systems ◽  
Unmanned Systems ◽  
The Common ◽  
High Level ◽  
The Military ◽  
Aerial Systems

Abstract The steadily increasing use of unmanned aerial systems (UAS) is an important factor for the military and civil aviation safety on a global scale. One of the critical conditions for the efficient functioning of the European aviation safety system is the establishment and implementation in practice of a comprehensive regulatory framework for the use of unmanned systems in the Common European Airspace. The aviation authorities and industry strive to introduce a set of rules and requirements that adequately and flexibly guarantee a high level of safety without limiting the development of the UAS market. This article proposes a set of standards that should be met by “Open” category UAS with the intention to execute operations in the European airspace.

scholarly journals Development of a standard database of reference sites for validating global burned area products

2020 ◽  
Vol 12 (4) ◽  
pp. 3229-3246
Author(s):  
Magí Franquesa ◽  
Melanie K. Vanderhoof ◽  
Dimitris Stavrakoudis ◽  
Ioannis Z. Gitas ◽  
Ekhi Roteta ◽  
...  
Keyword(s):  
Reference Data ◽  
Accuracy Assessment ◽  
Global Scale ◽  
Internal Quality ◽  
Burned Area ◽  
Reference Database ◽  
Reference Information ◽  
Metadata Standards ◽  
International Projects ◽  
High Level

Abstract. Over the past 2 decades, several global burned area products have been produced and released to the public. However, the accuracy assessment of such products largely depends on the availability of reliable reference data that currently do not exist on a global scale or whose production require a high level of dedication of project resources. The important lack of reference data for the validation of burned area products is addressed in this paper. We provide the Burned Area Reference Database (BARD), the first publicly available database created by compiling existing reference BA (burned area) datasets from different international projects. BARD contains a total of 2661 reference files derived from Landsat and Sentinel-2 imagery. All those files have been checked for internal quality and are freely provided by the authors. To ensure database consistency, all files were transformed to a common format and were properly documented by following metadata standards. The goal of generating this database was to give BA algorithm developers and product testers reference information that would help them to develop or validate new BA products. BARD is freely available at https://doi.org/10.21950/BBQQU7 (Franquesa et al., 2020).

scholarly journals Strategies to Increase Prediction Accuracy in Genomic Selection of Complex Traits in Alfalfa (Medicago sativa L.)

Cells ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 3372
Author(s):  
Cesar A. Medina ◽  
Harpreet Kaur ◽  
Ian Ray ◽  
Long-Xi Yu
Keyword(s):  
Salt Stress ◽  
Abiotic Stress ◽  
Medicago Sativa ◽  
Genomic Selection ◽  
Complex Traits ◽  
Prediction Accuracy ◽  
Breeding Value ◽  
Phenotypic Traits ◽  
Genome Wide ◽  
Medicago Sativa L

Agronomic traits such as biomass yield and abiotic stress tolerance are genetically complex and challenging to improve through conventional breeding approaches. Genomic selection (GS) is an alternative approach in which genome-wide markers are used to determine the genomic estimated breeding value (GEBV) of individuals in a population. In alfalfa (Medicago sativa L.), previous results indicated that low to moderate prediction accuracy values (<70%) were obtained in complex traits, such as yield and abiotic stress resistance. There is a need to increase the prediction value in order to employ GS in breeding programs. In this paper we reviewed different statistic models and their applications in polyploid crops, such as alfalfa and potato. Specifically, we used empirical data affiliated with alfalfa yield under salt stress to investigate approaches that use DNA marker importance values derived from machine learning models, and genome-wide association studies (GWAS) of marker-trait association scores based on different GWASpoly models, in weighted GBLUP analyses. This approach increased prediction accuracies from 50% to more than 80% for alfalfa yield under salt stress. Finally, we expended the weighted GBLUP approach to potato and analyzed 13 phenotypic traits and obtained similar results. This is the first report on alfalfa to use variable importance and GWAS-assisted approaches to increase the prediction accuracy of GS, thus helping to select superior alfalfa lines based on their GEBVs.

scholarly journals Genomic selection for white spot syndrome virus resistance in whiteleg shrimp boosts survival under an experimental challenge test

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Marie Lillehammer ◽  
Rama Bangera ◽  
Marcela Salazar ◽  
Sergio Vela ◽  
Edna C. Erazo ◽  
...  
Keyword(s):  
Genomic Selection ◽  
Genetic Improvement ◽  
White Spot Syndrome Virus ◽  
Random Mating ◽  
Challenge Test ◽  
White Spot ◽  
Breeding Value ◽  
Genomic Breeding ◽  
Breeding Values ◽  
White Spot Syndrome

AbstractWhite spot syndrome virus (WSSV) causes major worldwide losses in shrimp aquaculture. The development of resistant shrimp populations is an attractive option for management of the disease. However, heritability for WSSV resistance is generally low and genetic improvement by conventional selection has been slow. This study was designed to determine the power and accuracy of genomic selection to improve WSSV resistance in Litopenaeus vannamei. Shrimp were experimentally challenged with WSSV and resistance was evaluated as dead or alive (DOA) 23 days after infestation. All shrimp in the challenge test were genotyped for 18,643 single nucleotide polymorphisms. Breeding candidates (G0) were ranked on genomic breeding values for WSSV resistance. Two G1 populations were produced, one from G0 breeders with high and the other with low estimated breeding values. A third population was produced from “random” mating of parent stock. The average survival was 25% in the low, 38% in the random and 51% in the high-genomic breeding value groups. Genomic heritability for DOA (0.41 in G1) was high for this type of trait. The realised genetic gain and high heritability clearly demonstrates large potential for further genetic improvement of WSSV resistance in the evaluated L. vannamei population using genomic selection.

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