Download or read book Quantitative Genetics in Sheep Breeding written by Helen Newton Turner and published by . This book was released on 1969 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quantitative Genetics in Sheep Breeding 1937 69 written by Helen Newton Turner and published by . This book was released on 1970 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Variance Component Estimation in Quantitative Genetics written by Christine Howitt and published by . This book was released on 19?? with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular and Quantitative Animal Genetics written by Hasan Khatib and published by John Wiley & Sons. This book was released on 2015-03-02 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Animal genetics is a foundational discipline in the fields of animal science, animal breeding, and veterinary sciences. While genetics underpins the healthy development and breeding of all living organisms, this is especially true in domestic animals, specifically with respect to breeding for key traits. Molecular and Quantitative Animal Genetics is a new textbook that takes an innovative approach, looking at both quantitative and molecular breeding approaches. The bookprovides a comprehensive introduction to genetic principles and their applications in animal breeding. This text provides a useful overview for those new to the field of animal genetics and breeding, covering a diverse array of topics ranging from population and quantitative genetics to epigenetics and biotechnology. Molecular and Quantitative Animal Genetics will be an important and invaluable educational resource for undergraduate and graduate students and animal agriculture professionals. Divided into six sections pairing fundamental principles with useful applications, the book's comprehensive coverage will make it an ideal fit for students studying animal breeding and genetics at any level.

Download or read book Quantitative Genetic Theory and Livestock Improvement written by E. P. Cunningham and published by . This book was released on 1979 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General and Quantitative Genetics written by A. B. Chapman and published by Elsevier Science & Technology. This book was released on 1985 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hardbound. Emphasising the principles of genetics most relevant to livestock improvement, this volume covers many aspects of genetics, from the principles laid down in 1865 by Gregor Mendel to the recent developments in genetic engineering. The authors have all made notable research contributions to the field of animal science. The clarity of presentation, the detailed explanations and the thorough discussions will give the reader an insight into the diverse areas which make up the science of genetics and an understanding of the facts and theory on which present-day animal breeding is built.

Download or read book The Genetics of Sheep written by Laurie Piper and published by Cabi. This book was released on 1997 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematics and phylogeny of the sheep;Genetic aspects of domestication, common breeds and their origin; Genetics of colour and hair texture; Genetics of morphological traits and inherited disorders; Biochemical genetics; Molecular genetics of sheep; Molecular genetics of immune molecules; Genetics of disease resistance and vaccine response; Molecular biology and genetics of scrapie in sheep; Cytogenetics: physical chromosome maps; The sheep linkage map; Genetics of behaviour; Biology and genetics of reproduction; Modern reproduction technologies and transgenics; Developmental genetics; Genetic resources and conservation; Genetic improvement of wool production; Genetics of meat quality; Genetics of milk production; Genetic improvement of sheep; Standardized genetic nomenclature for sheep.

Download or read book Genetics of Reproduction in Sheep written by R.B. Land and published by Elsevier. This book was released on 2013-10-22 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetics of Reproduction in Sheep is a compilation of papers that are concerned with the study and application of genetics to the reproduction in sheep. The book is divided into six parts, grouping the papers according to topic. The main topics include genetic variation and selection; the inheritance and the effects of the Booroola gene; genetic strategies for single genes; physiology of genetic variation; the physiological criteria of genetic merit; and the national requirement and systems of husbandry. The text is recommended for those involved with raising sheep and plan to apply genetics in their reproduction, as well as for geneticists who wish to conduct studies on how their field is applied to sheep reproduction.

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 Advances in Statistical Methods for Genetic Improvement of Livestock written by Daniel Gianola and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developments in statistics and computing as well as their application to genetic improvement of livestock gained momentum over the last 20 years. This text reviews and consolidates the statistical foundations of animal breeding. This text will prove useful as a reference source to animal breeders, quantitative geneticists and statisticians working in these areas. It will also serve as a text in graduate courses in animal breeding methodology with prerequisite courses in linear models, statistical inference and quantitative genetics.

Download or read book Sheep and Goat Breeding written by Food and Agriculture Organization of the United Nations and published by Fao. This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: FAO economic and social development series no/ 3/12. - Designed as handbooks for 2 year intermediate level agricultural and training course. Translated and adapted from the French

Download or read book Quantitative Genetics Theory in Animal Breeding written by B. W. Kennedy and published by . This book was released on 1995 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quantitative Genetics in the Wild written by Anne Charmantier and published by . This book was released on 2014 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the field of quantitative genetics - the study of the genetic basis of variation in quantitative characteristics such as body size, or reproductive success - is almost 100 years old, its application to the study of evolutionary processes in wild populations has expanded greatly over the last few decades. During this time, the use of 'wild quantitative genetics' has provided insights into a range of important questions in evolutionary ecology, ranging from studies conducting research in well-established fields such as life-history theory, behavioural ecology and sexual selection, to others addressing relatively new issues such as populations' responses to climate change or the process of senescence in natural environments. Across these fields, there is increasing appreciation of the need to quantify the genetic - rather than just the phenotypic - basis and diversity of key traits, the genetic basis of the associations between traits, and the interaction between these genetic effects and the environment. This research activity has been fuelled by methodological advances in both molecular genetics and statistics, as well as by exciting results emerging from laboratory studies of evolutionary quantitative genetics, and the increasing availability of suitable long-term datasets collected in natural populations, especially in animals. Quantitative Genetics in the Wild is the first book to synthesize the current level of knowledge in this exciting and rapidly-expanding area. This comprehensive volume also offers exciting perspectives for future studies in emerging areas, including the application of quantitative genetics to plants or arthropods, unraveling the molecular basis of variation in quantitative traits, or estimating non-additive genetic variance. Since this book deals with many fundamental questions in evolutionary ecology, it should be of interest to graduate, post-graduate students, and academics from a wide array of fields such as animal behaviour, ecology, evolution, and genetics.

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 Quantitative Genetics of Sheep Preference in Red Clover Trifolium Pratense L under Spaced Plant and Sward Conditions written by Daniel Real-Ferreiro and published by . This book was released on 1997 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quantitative Genetics in Maize Breeding written by Arnel R. Hallauer and published by Springer Science & Business Media. This book was released on 2010-09-28 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize is used in an endless list of products that are directly or indirectly related to human nutrition and food security. Maize is grown in producer farms, farmers depend on genetically improved cultivars, and maize breeders develop improved maize cultivars for farmers. Nikolai I. Vavilov defined plant breeding as plant evolution directed by man. Among crops, maize is one of the most successful examples for breeder-directed evolution. Maize is a cross-pollinated species with unique and separate male and female organs allowing techniques from both self and cross-pollinated crops to be utilized. As a consequence, a diverse set of breeding methods can be utilized for the development of various maize cultivar types for all economic conditions (e.g., improved populations, inbred lines, and their hybrids for different types of markets). Maize breeding is the science of maize cultivar development. Public investment in maize breeding from 1865 to 1996 was $3 billion (Crosbie et al., 2004) and the return on investment was $260 billion as a consequence of applied maize breeding, even without full understanding of the genetic basis of heterosis. The principles of quantitative genetics have been successfully applied by maize breeders worldwide to adapt and improve germplasm sources of cultivars for very simple traits (e.g. maize flowering) and very complex ones (e.g., grain yield). For instance, genomic efforts have isolated early-maturing genes and QTL for potential MAS but very simple and low cost phenotypic efforts have caused significant and fast genetic progress across genotypes moving elite tropical and late temperate maize northward with minimal investment. Quantitative genetics has allowed the integration of pre-breeding with cultivar development by characterizing populations genetically, adapting them to places never thought of (e.g., tropical to short-seasons), improving them by all sorts of intra- and inter-population recurrent selection methods, extracting lines with more probability of success, and exploiting inbreeding and heterosis. Quantitative genetics in maize breeding has improved the odds of developing outstanding maize cultivars from genetically broad based improved populations such as B73. The inbred-hybrid concept in maize was a public sector invention 100 years ago and it is still considered one of the greatest achievements in plant breeding. Maize hybrids grown by farmers today are still produced following this methodology and there is still no limit to genetic improvement when most genes are targeted in the breeding process. Heterotic effects are unique for each hybrid and exotic genetic materials (e.g., tropical, early maturing) carry useful alleles for complex traits not present in the B73 genome just sequenced while increasing the genetic diversity of U.S. hybrids. Breeding programs based on classical quantitative genetics and selection methods will be the basis for proving theoretical approaches on breeding plans based on molecular markers. Mating designs still offer large sample sizes when compared to QTL approaches and there is still a need to successful integration of these methods. There is a need to increase the genetic diversity of maize hybrids available in the market (e.g., there is a need to increase the number of early maturing testers in the northern U.S.). Public programs can still develop new and genetically diverse products not available in industry. However, public U.S. maize breeding programs have either been discontinued or are eroding because of decreasing state and federal funding toward basic science. Future significant genetic gains in maize are dependent on the incorporation of useful and unique genetic diversity not available in industry (e.g., NDSU EarlyGEM lines). The integration of pre-breeding methods with cultivar development should enhance future breeding efforts to maintain active public breeding programs not only adapting and improving genetically broad-based germplasm but also developing unique products and training the next generation of maize breeders producing research dissertations directly linked to breeding programs. This is especially important in areas where commercial hybrids are not locally bred. More than ever public and private institutions are encouraged to cooperate in order to share breeding rights, research goals, winter nurseries, managed stress environments, and latest technology for the benefit of producing the best possible hybrids for farmers with the least cost. We have the opportunity to link both classical and modern technology for the benefit of breeding in close cooperation with industry without the need for investing in academic labs and time (e.g., industry labs take a week vs months/years in academic labs for the same work). This volume, as part of the Handbook of Plant Breeding series, aims to increase awareness of the relative value and impact of maize breeding for food, feed, and fuel security. Without breeding programs continuously developing improved germplasm, no technology can develop improved cultivars. Quantitative Genetics in Maize Breeding presents principles and data that can be applied to maximize genetic improvement of germplasm and develop superior genotypes in different crops. The topics included should be of interest of graduate students and breeders conducting research not only on breeding and selection methods but also developing pure lines and hybrid cultivars in crop species. This volume is a unique and permanent contribution to breeders, geneticists, students, policy makers, and land-grant institutions still promoting quality research in applied plant breeding as opposed to promoting grant monies and indirect costs at any short-term cost. The book is dedicated to those who envision the development of the next generation of cultivars with less need of water and inputs, with better nutrition; and with higher percentages of exotic germplasm as well as those that pursue independent research goals before searching for funding. Scientists are encouraged to use all possible breeding methodologies available (e.g., transgenics, classical breeding, MAS, and all possible combinations could be used with specific sound long and short-term goals on mind) once germplasm is chosen making wise decisions with proven and scientifically sound technologies for assisting current breeding efforts depending on the particular trait under selection. Arnel R. Hallauer is C. F. Curtiss Distinguished Professor in Agriculture (Emeritus) at Iowa State University (ISU). Dr. Hallauer has led maize-breeding research for mid-season maturity at ISU since 1958. His work has had a worldwide impact on plant-breeding programs, industry, and students and was named a member of the National Academy of Sciences. Hallauer is a native of Kansas, USA. José B. Miranda Filho is full-professor in the Department of Genetics, Escola Superior de Agricultura Luiz de Queiroz - University of São Paulo located at Piracicaba, Brazil. His research interests have emphasized development of quantitative genetic theory and its application to maize breeding. Miranda Filho is native of Pirassununga, São Paulo, Brazil. M.J. Carena is professor of plant sciences at North Dakota State University (NDSU). Dr. Carena has led maize-breeding research for short-season maturity at NDSU since 1999. This program is currently one the of the few public U.S. programs left integrating pre-breeding with cultivar development and training in applied maize breeding. He teaches Quantitative Genetics and Crop Breeding Techniques at NDSU. Carena is a native of Buenos Aires, Argentina. http://www.ag.ndsu.nodak.edu/plantsci/faculty/Carena.htm

Download or read book Coloured Sheep written by Irina Böhme and published by BoD – Books on Demand. This book was released on 2019-04-25 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some skill, some luck and lots of fun: sheep colour genetics is like a game of cards! This book explains the rules of the game. Assuming no previous knowledge, the book uses a game of cards to visualise the rules that govern colour genetics, introducing terminology on the way. What are genes and alleles? What is the phenotype of a sheep? What the genotype? The reader is introduced to agouti-pattern, base colour, and spotting and strategies are shown to identifiy them in the reader's own flock. This knowledge is expanded to show how it can be used to plan breeding for certain colours. More genes that influence colour are introduced later in the book and thought is given to preserving diversity within a breed while strategically increasing the presence of desirable traits in a flock. The book focuses on practical aspects. How to identify genotypes? Which animals should be used for test breeding? How can the knowledge be used for individual goals? Written by a molecular biologist and science communicator and co-written by a professional editor of scientific textbooks - both of them breeders of coloured sheep - this book uses an easily understandable approach to explaining colour genetics.