Download or read book The Effects of Inbreeding on Heritable Traits in a Herd of Jersey Cattle written by Arthur Dale Dayton and published by . This book was released on 1969 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Jersey Herd Book written by and published by . This book was released on 1910 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantitative and Genomic Analyses of Inbreeding in Dairy Cattle Populations written by Bayode Makanjuola and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of this thesis was to assess the loss of genetic diversity, estimate the adverse effects of increasing homozygosity on economically important traits and investigate at the genomic level the unique location causing the detrimental effects. To understand the pattern of genetic diversity losses, we investigated the rate of inbreeding (∆F), rate of coancestry (∆f) and effective population size (N_e) as important quantitative indicators of genetic diversity and evaluated the effect of the recent implementation of genomic selection on the loss of genetic diversity in Holstein and Jersey dairy cattle. The rate of inbreeding and coancestry were calculated using both the traditional pedigree method and genomic methods estimated from segment and marker-based approaches. The ∆F and ∆f per generation ranged from 0.62 to 1.16%. Therefore, the N_e ranged from 43 to 85 for the two breeds. This result suggests the need to implement measures and means for controlling the rate of inbreeding, which will help to manage and maintain farm animal genetic resources. Following the assessment of genetic diversity loss, the negative effects of the accumulation of inbreeding expected from the reducing N_e was investigated. More specifically, we investigated the effect of recent and ancient inbreeding on production and fertility traits in Holsteins. In general, negative effects of inbreeding were found on production and fertility traits with production traits having more significant negative effects. Interestingly, ancient inbreeding had no significant negative impact on traits analysed; however, recent inbreeding showed more adverse and significant impact on analysed traits. This result indicates that more attention should be focused on recent inbreeding. Furthermore, we sought to identify unique homozygous genomic regions (ROH) showing negative associations with production and fertility traits as well as investigating their effects. Unique ROH regions with unfavorable effects were identified for both production and fertility traits. These unique homozygous regions with negative effects on production and fertility traits were identified within and across multiple traits in almost all chromosomes. The identified harmful regions could be advantageously used in mate selection pipelines for minimizing their frequency in future generations.
Download or read book Outlier Analysis written by Charu C. Aggarwal and published by Springer. This book was released on 2016-12-10 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides comprehensive coverage of the field of outlier analysis from a computer science point of view. It integrates methods from data mining, machine learning, and statistics within the computational framework and therefore appeals to multiple communities. The chapters of this book can be organized into three categories: Basic algorithms: Chapters 1 through 7 discuss the fundamental algorithms for outlier analysis, including probabilistic and statistical methods, linear methods, proximity-based methods, high-dimensional (subspace) methods, ensemble methods, and supervised methods. Domain-specific methods: Chapters 8 through 12 discuss outlier detection algorithms for various domains of data, such as text, categorical data, time-series data, discrete sequence data, spatial data, and network data. Applications: Chapter 13 is devoted to various applications of outlier analysis. Some guidance is also provided for the practitioner. The second edition of this book is more detailed and is written to appeal to both researchers and practitioners. Significant new material has been added on topics such as kernel methods, one-class support-vector machines, matrix factorization, neural networks, outlier ensembles, time-series methods, and subspace methods. It is written as a textbook and can be used for classroom teaching.
Download or read book Evolution and the Genetics of Populations Volume 2 written by Sewall Wright and published by University of Chicago Press. This book was released on 1984-06-15 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: These volumes discuss evolutionary biology through the lense of population genetics.
Download or read book Mason s World Encyclopedia of Livestock Breeds and Breeding 2 Volume Pack written by Valerie Porter and published by CABI. This book was released on 2016-03-09 with total page 1109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mason's World Encyclopedia of Livestock Breeds and Breeding describes breeds of livestock worldwide as well as a range of breed-related subjects such as husbandry, health and behaviour. This definitive and prestigious reference work presents easily accessible information on domestication (including wild ancestors and related species), genetics and breeding, livestock produce and markets, as well as breed conservation and the cultural and social aspects of livestock farming. Written by renowned livestock authorities, these volumes draw on the authors' lifelong interest and involvement in livestock breeds of the world, presenting a unique, comprehensive and fully cross-referenced guide to cattle, buffalo, horses, pigs, sheep, asses, goats, camelids, yak and other domesticants.
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 Genetic Improvement of Cattle and Sheep written by Geoff Simm and published by Oxford University Press, USA. This book was released on 2002-11 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: * Outlines the link between genes and performance in farm animals * Shows tools for more effective genetic selection * Highlights the role and ethical implications of new reproductive and molecular genetic technologies The application of scientific methods to animal breeding has led to major improvements in the output, cost and quality of animal products over the last few decades. This book describes the principles of genetic improvement of farm livestock and the practical application of these principles to dairy cattle, beef cattle and sheep breeding. This title has been taken over by CABI Publishing from Farming Press and was originally published in 1998
Download or read book The Level of Inbreeding and Its Effect on Weight Traits in Simmental Cattle written by Barbara J. Ward and published by . This book was released on 1993 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Complex Disease Association Studies written by Eleftheria Zeggini and published by Academic Press. This book was released on 2010-11-17 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to the National Institute of Health, a genome-wide association study is defined as any study of genetic variation across the entire human genome that is designed to identify genetic associations with observable traits (such as blood pressure or weight), or the presence or absence of a disease or condition. Whole genome information, when combined with clinical and other phenotype data, offers the potential for increased understanding of basic biological processes affecting human health, improvement in the prediction of disease and patient care, and ultimately the realization of the promise of personalized medicine. In addition, rapid advances in understanding the patterns of human genetic variation and maturing high-throughput, cost-effective methods for genotyping are providing powerful research tools for identifying genetic variants that contribute to health and disease. This burgeoning science merges the principles of statistics and genetics studies to make sense of the vast amounts of information available with the mapping of genomes. In order to make the most of the information available, statistical tools must be tailored and translated for the analytical issues which are original to large-scale association studies. Analysis of Complex Disease Association Studies will provide researchers with advanced biological knowledge who are entering the field of genome-wide association studies with the groundwork to apply statistical analysis tools appropriately and effectively. With the use of consistent examples throughout the work, chapters will provide readers with best practice for getting started (design), analyzing, and interpreting data according to their research interests. Frequently used tests will be highlighted and a critical analysis of the advantages and disadvantage complimented by case studies for each will provide readers with the information they need to make the right choice for their research. Additional tools including links to analysis tools, tutorials, and references will be available electronically to ensure the latest information is available. Easy access to key information including advantages and disadvantage of tests for particular applications, identification of databases, languages and their capabilities, data management risks, frequently used tests Extensive list of references including links to tutorial websites Case studies and Tips and Tricks
Download or read book Fat Content and Composition of Animal Products written by National Research Council and published by National Academies Press. This book was released on 1976-02-01 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Genetics and Breeding for Disease Resistance of Livestock written by Aruna Pal and published by Academic Press. This book was released on 2019-10-22 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetics and Breeding for Disease Resistance of Livestock is a solid resource that combines important information on the underlying genetic causes and governing factors for disease resistance in food animals and applications for breeding purposes. It describes genomics at each species level to help researchers and students understand disease resistance and immunology using genomics and its application in breeding for disease resistance. This useful reference makes it easy for readers to understand and undergo further research in immunology and disease resistance for livestock. It includes novel applications and research material that is ideal for students, teachers, academicians and researchers. Presents basic principles and protocols to describe research methodologies through diagrammatic illustrations with figures, flow charts, examples, and references Covers various disease occurrences in livestock and the methodologies available to identify the various pathogens responsible for these diseases Includes advanced breeding techniques and practical applications
Download or read book Inbreeding Investigations with Dairy Cattle in the North Central Region of the United States written by and published by . This book was released on 1969 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Innate written by Kevin J. Mitchell and published by Princeton University Press. This book was released on 2020-03-31 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: "What makes you the way you are--and what makes each of us different from everyone else? In Innate, leading neuroscientist and popular science blogger Kevin Mitchell traces human diversity and individual differences to their deepest level: in the wiring of our brains. Deftly guiding us through important new research, including his own groundbreaking work, he explains how variations in the way our brains develop before birth strongly influence our psychology and behavior throughout our lives, shaping our personality, intelligence, sexuality, and even the way we perceive the world. We all share a genetic program for making a human brain, and the program for making a brain like yours is specifically encoded in your DNA. But, as Mitchell explains, the way that program plays out is affected by random processes of development that manifest uniquely in each person, even identical twins. The key insight of Innate is that the combination of these developmental and genetic variations creates innate differences in how our brains are wired--differences that impact all aspects of our psychology--and this insight promises to transform the way we see the interplay of nature and nurture. Innate also explores the genetic and neural underpinnings of disorders such as autism, schizophrenia, and epilepsy, and how our understanding of these conditions is being revolutionized. In addition, the book examines the social and ethical implications of these ideas and of new technologies that may soon offer the means to predict or manipulate human traits. Compelling and original, Innate will change the way you think about why and how we are who we are."--Provided by the publisher.
Download or read book Organic Dairy Production written by Sarah Flack and published by Chelsea Green Publishing. This book was released on 2011-04-28 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is no simple recipe for setting up and managing a successful organic dairy farm, but this handbook can act as an introduction to important issues in organic dairy production and provide today's organic or transitioning dairy farmer with an overview of the tools and ideas available. Part of the NOFA guides. Organic Dairy Production includes information on: Soils, the foundation of health (manure management) Crop production and grazing management (forage species, pasture management, setting up a grazing system) Livestock (selection, nutrition, winter and summer feed considerations, seasonal milking, habitat, herd health, milk quality) Marketing (selling fluid milk, regulations, facility and equipment, selling raw milk) Recordkeeping The transition to organic Features examples from various farms in the Northeast.
Download or read book The General Stud book written by and published by . This book was released on 1840 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
