Download or read book International Genetic and Genomic Evaluations of Beef Cattle written by and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In cattle, advancements in reproductive technologies such as artificial insemination allowed breeders to access the genetic material of superior bulls from foreign countries. However, animals’ estimated breeding values (EBV) computed from different national evaluations are not directly comparable across countries due to differences in scales and genetic bases, trait and model definitions, and the possible presence of genotype-by-environment interactions. International evaluations account for such differences by jointly analysing all national data and modelling the same trait recorded in different countries as different correlated traits. The resulting international EBV (EBVINT) facilitate the comparison of domestic and foreign sires and worldwide trading of their genetic material. This thesis aimed to improve and further develop methodologies for international beef cattle evaluations (Interbeef) by addressing various challenges, mainly related to: i) the estimation of across-country genetic correlations (rg) and their impact on the EBVINT; ii) the inclusion of national genomic information; and iii) the development of an official procedure for participating countries to integrate the distributed EBVINT back into their national evaluations. First, I showed that both large and small participating countries benefit from current Interbeef pedigree-based evaluations. Second, I showed the feasibility of estimating across-country rg using a multi-trait approach that simultaneously fits data from all countries and proposed data sub-setting strategies to improve computational time. Third, I showed that the current practice of assuming across-country direct-maternal rg to be 0 has limited impact on the EBVINT of animals of interest such as publishable sires, i.e., sires that meet Interbeef publications rules. On the other hand, assuming zero within-country direct-maternal rg impacts the EBVINT of such animals. Fourth, I developed international genomic evaluations for beef cattle using a single-step SNPBLUP approach (ssSNPBLUP). International ssSNPBLUP evaluations lead to higher accuracies compared to both current international pedigree evaluations and either national pedigree or genomic evaluations, while keeping similar or slightly reduced level and dispersion bias. Finally, I developed a generalized procedure to integrate pedigree-based or single-step EBVINT of publishable sires into national evaluations. The procedure can be easily implemented with current software. Compared to national evaluations without integration, the integration reduces level bias, gives similar dispersion, and increases accuracies of publishable sires’ EBVINT. Overall, this thesis contributes to the development of international evaluations of beef cattle.
Download or read book Genetic Improvement of Farmed Animals written by Geoff Simm and published by CABI. This book was released on 2020-11-26 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic Improvement of Farmed Animals provides a thorough grounding in the basic sciences underpinning farmed animal breeding. Relating science to practical application, it covers all the major farmed animal species: cattle, sheep, goats, poultry, pigs and aquaculture species.
Download or read book Development Strategies for Genetic Evaluation for Beef Production in Developing Countries written by Jack Allen and published by . This book was released on 2002 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bovine Genomics written by James Womack and published by John Wiley & Sons. This book was released on 2012-06-26 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: The genetic information being unlocked by advances in genomic and high throughput technologies is rapidly revolutionizing our understanding of developmental processes in bovine species. This information is allowing researchers unprecedented insight into the genetic basis of key traits. Bovine Genomics is the first book to bring together and synthesize the information learned through the bovine genome sequencing project and look at its practical application to cattle and dairy production. Bovine Genomics opens with foundational chapters on the domestication of cattle and traditional Mendelian genetics. Building on these chapters, coverage rapidly moves to quantitative genetics and the advances of whole genome technologies. Significant coverage is given to such topics as epigenetics, mapping quantitative trail loci, genome-wide association studies and genomic selection in cattle breeding. The book is a valuable synthesis of the field written by a global team of leading researchers. Providing wide-ranging coverage of the topic, Bovine Genomic, is an essential guide to the field. The basic and applied science will be of use to researchers, breeders, and advanced students.
Download or read book The Genetics of Cattle 2nd Edition written by Dorian Garrick and published by CABI. This book was released on 2014-11-28 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the time of domestication more than 10,000 years ago, cattle have played an increasingly crucial role in the development of human civilizations. Progress has been quite remarkable since the turn of the century; the sequencing of the bovine genome in 2009 launched new avenues for furthering our understanding of theoretical and practical aspects of cattle genetics. Covering a vast array of questions, this book reviews major topics from molecular and developmental genetics, disease resistance and immunogenetics to genetic improvement of dairy and beef breeds, addressing all current problems in the field. This second edition includes a new team of authors and completely new chapters on the genetics of fat production, nutrition, feed intake and efficiency, growth and body composition. Fully updated throughout, it provides a valuable resource on cattle genetics for researchers, breeders, veterinarians and postgraduate students.
Download or read book Animal Breeding and Genetics written by Matthew L. Spangler and published by Springer Nature. This book was released on 2022-11-01 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: This newly updated and revised volume of the Encyclopedia of Sustainability Science and Technology (ESST) details the role of Animal Breeding and Genetics in the sustainability of animal agriculture. The volume covers scientific principles and applications includes the current science used to advance cattle, poultry, swine,sheep, and equine populations, as well as the future role of techniques such as gene editing. International leaders in the field explain foundational concepts such as heritability, the covariance between relatives, statistical approaches to predicting the genetic merit of individuals, and the development and advancement of molecular techniques to elucidate changes in the DNA sequence that underly phenotypic variation. The use of genetic-based tools to improve animal agriculture and meet consumer demands across species is treated in detail. Readers will gain an understanding of how global livestock producers have implemented advanced genetic selection tools and used them to improve reproduction, production, efficiency, health, and sustainability. The interactions of genetics and production environments, and the genetic components of the complex interactions among animals are also discussed. The future of Animal Breeding and Genetics, including the challenges and opportunities that exist in feeding a growing world population, are addressed.
Download or read book Ruminant Genomics an Issue of Veterinary Clinics of North America Food Animal Practice written by John Dustin Loy and published by Elsevier. This book was released on 2024-11-28 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this issue of Veterinary Clinics of North America: Food Animal Practice, guest editors Drs. Nial J. O'Boyle, John Dustin Loy, and Jessica L. Klabnik bring their considerable expertise to the topic of Genomics. Top experts provide a primer on fundamentals, applications, and implementation of genetics and genomics into ruminant practice, including articles on key genetics/genomics strategies and economic impact; sampling and laboratory logistics; beef and dairy genetic evaluations; and the role of veterinary practitioners in the genomic era in beef and dairy. Contains 12 relevant, practice-oriented topics including genetics and genomics 101; recessive conditions in beef and dairy cattle; European dairy cattle evaluations and international use of genomic data; discovering and developing the next generation of dairy and beef genetics; new frontiers for the future of genomics; and more. Provides in-depth clinical reviews on genomics, offering actionable insights for clinical practice. Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.
Download or read book Advances in Genomics of Crossbred Farm Animals written by Xiao-Lin Wu and published by Frontiers Media SA. This book was released on 2021-09-24 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mixed Model Methodology for Across Breed Genetic Evaluation of Beef Cattle written by Jerry Wayne Arnold and published by . This book was released on 1991 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Animal Genomics written by Bhanu P. Chowdhary and published by S. Karger AG (Switzerland). This book was released on 2003 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication provides an update on the current status of gene maps in different livestock and pet/companion animal species. The findings summarized in species specific commentaries and original articles testify the rapid advances made in the field of animal genomics. Of significant interest is the fact that current investigations are providing headways for two important and exciting research fronts: targeted high-resolution mapping leading to the application of genomic information in addressing questions of economic and biological significance in animals, and the initiation of whole genome sequencing projects for some of the animal species. Like in humans and mice, this will set the stage for a new level of research and real time complex analysis of the genomes of these species. Animal Genomics signifies the beginning of a new era in this field and celebrates the achievements of the past 20 years of genomics research. It will be of special interest to researchers involved in genome analysis - both gross chromosomal as well as molecular - in various animal species, and to comparative and evolutionary geneticists.
Download or read book Multiple Trait Genetic Evaluation of Beef Cattle Data written by Aldo Monti and published by . This book was released on 2004 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selection of livestock is usually made trying to take into account several traits simunltaneously, which are more or less correlated in a phenotypic or genotypic way. Multiple Trait Genetic Evaluation is the optimum methodology for ranking animals, based on mixed model genetic evaluations - Best Linear Unbiased Prediction and Estimated Breeding Values. The objective of this work is to discuss the aspects and implement suitable elements of this methodology to propose a model for multiple trait genetic evaluation of Angus beef cattle.
Download or read book Animal Genomics for Animal Health written by Marie-Hélène Pinard and published by Karger Medical and Scientific Publishers. This book was released on 2008-01-01 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: "It includes a review of the state of the art in animal genomics and its applications to animal health. The contributions describe the new tools available, such as HapMaps for chicken and cattle, and show how the understanding of gene structure and function can be successfully applied to delineate the molecular mechanisms of disease and determine complex phenotypes associated with health traits. A critical evaluation of future needs and future applications of animal genomics is also presented. The integration of animal genomics in animal health research is likely to revolutionize the way scientists approach the challenges of discovering highly effective drugs and vaccines for animal diseases."--BOOK JACKET.
Download or read book Bovine Reproduction written by Richard M. Hopper and published by John Wiley & Sons. This book was released on 2014-08-18 with total page 2206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bovine Reproduction is a comprehensive, current reference providing information on all aspects of reproduction in the bull and cow. Offering fundamental knowledge on evaluating and restoring fertility in the bovine patient, the book also places information in the context of herd health where appropriate for a truly global view of bovine theriogenology. Printed in full color throughout, the book includes 83 chapters and more than 550 images, making it the most exhaustive reference available on this topic. Each section covers anatomy and physiology, breeding management, and reproductive surgery, as well as obstetrics and pregnancy wastage in the cow. Bovine Reproduction is a welcome resource for bovine practitioners, theriogenologists, and animal scientists, as well as veterinary students and residents with an interest in the cow.
Download or read book Interbull Guidelines for National International Genetic Evaluation Systems in Dairy Cattle with Focus on Production Traits written by and published by . This book was released on 2001 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The 1996 Murray Grey International Group Breedplan Genetic Evaluation Report written by Murray Grey Beef Cattle Society (Australia) and published by . This book was released on 1996 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hierarchical Bayes Models for Beef Cattle Genetic Evaluation Under Extensive Management Conditions written by Fernando Flores Cardoso and published by . This book was released on 2003 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Uniform Beef Improvement Programs written by Dixon D. Hubbard and published by . This book was released on 1981 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
