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Author : Aixin Liang
Publisher : Frontiers Media SA
ISBN 13 : 2832507840
Total Pages : 170 pages
Book Rating : 4.8/5 (325 download)
Download or read book Genetic analysis of reproductive traits in livestock written by Aixin Liang and published by Frontiers Media SA. This book was released on 2023-02-14 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : HASSANI S
Publisher :
ISBN 13 :
Total Pages : 338 pages
Book Rating : 4.:/5 (795 download)
Download or read book Genetic Analysis of Productive and Reproductive Traits in Friesian Sahiwal Crossbred Dairy Cattle written by HASSANI S and published by . This book was released on 2000 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Felix Eduardo A. Beltramino
Publisher :
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.E/5 ( download)
Download or read book Genetic Analysis of Reproductive Measures in Dairy Cows and Their Relationship with Milk Production written by Felix Eduardo A. Beltramino and published by . This book was released on 1984 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ranjodhan Singh Sahota
Publisher :
ISBN 13 :
Total Pages : 83 pages
Book Rating : 4.:/5 (73 download)
Download or read book Genetic Analysis of Lifetime Production and Reproduction Traits of Dairy Cattle written by Ranjodhan Singh Sahota and published by . This book was released on 1978 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zhihua Jiang
Publisher : John Wiley & Sons
ISBN 13 : 0470961821
Total Pages : 476 pages
Book Rating : 4.4/5 (79 download)
Download or read book Reproductive Genomics in Domestic Animals written by Zhihua Jiang and published by John Wiley & Sons. This book was released on 2011-06-17 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reproductive Genomics in Domestic Animals is a thorough examination of genomics in the livestock industry, encompassing genome sciences, genome biotechnology, and reproduction. Recent developments in molecular genetics and genomics have enabled scientists to identify and characterize genes contributing to the complexity of reproduction in domestic animals, allowing scientists to improve reproductive traits. Providing the livestock industry with essential tools for enhancing reproductive efficiency, Reproductive Genomics in Domestic Animals surveys the current status of reproductive genomes and looks to the future direction of research.
Author : Scott S. Pitnick
Publisher : Academic Press
ISBN 13 : 0080919871
Total Pages : 683 pages
Book Rating : 4.0/5 (89 download)
Download or read book Sperm Biology written by Scott S. Pitnick and published by Academic Press. This book was released on 2008-11-21 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sperm Biology represents the first analysis of the evolutionary significance of sperm phenotypes and derived sperm traits and the possible selection pressures responsible for sperm-egg coevolution. An understanding of sperm evolution is fast developing and promises to shed light on many topics from basic reproductive biology to the evolutionary process itself as well as the sperm proteome, the sperm genome and the quantitative genetics of sperm. The Editors have identified 15 topics of current interest and biological significance to cover all aspects of this bizarre, fascinating and important subject. It comprises the most comprehensive and up-to-date review of the evolution of sperm and pointers for future research, written by experts in both sperm biology and evolutionary biology. The combination of evolution and sperm is a potent mix, and this is the definitive account. The first review survey of this emerging field Written by experts from a broad array of disciplines from the physiological and biomedical to the ecological and evolutionary Sheds light on the intricacies of reproduction and the coevolution of sperm, egg and reproductive behavior
Author : Guohua Hua
Publisher : Frontiers Media SA
ISBN 13 : 2889745422
Total Pages : 133 pages
Book Rating : 4.8/5 (897 download)
Download or read book Buffalo Genetics and Genomics written by Guohua Hua and published by Frontiers Media SA. This book was released on 2022-02-28 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Drona Prakash Rasali
Publisher :
ISBN 13 :
Total Pages : 384 pages
Book Rating : 4.:/5 (184 download)
Download or read book Genetic Analysis of Association Among Juvenile Growth and Female Reproductive Traits in Canadian Angus Cattle written by Drona Prakash Rasali and published by . This book was released on 2004 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mishra.Rajani Kant
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (698 download)
Download or read book Genetic Analysis of Production and Reproduction Traits in Dure Bred Ingnigenous Cattle and Their Crosses with Feriesian written by Mishra.Rajani Kant and published by . This book was released on 1973 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Esa Antero Mantysaari
Publisher :
ISBN 13 :
Total Pages : 274 pages
Book Rating : 4.E/5 ( download)
Download or read book Estimation of Genetic Parameters for Reproductive Traits in Finnish Ayrshire Cattle written by Esa Antero Mantysaari and published by . This book was released on 1988 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : K. M. Reddy
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (697 download)
Download or read book Breed Structure and Genetic Analysis of Pedigreed Sahiwal Cattle written by K. M. Reddy and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed investigation was planned to study the origin and development of selected Sahiwal herds and to determine the amount of inbreeding and its effect on various economic traits, to investigate and culling rates herd life, reasons for mortality and disposal of animals at different stages of life and their influence on improvement of the breds, and to evaluate the reproductive and productive status of different herds and to estimate the optimal levels of different reproductive traits affecting milk production. The inbred studies revealed that in general there was no delectarious effect of inbreeding on various economic traits considered. The exceptions were herd life, productive life and number of calvings in some herds. A great part of the total variation for majority of the characters studied in different herds was realised to be due to intangible causes and it seems unlikely that the range of variation could be reduced by inbreeding to a significant level. About disposal pattern in heifer calves the study revealed that more care is required in summer to save the lives of calves. The analysis of causes of mortality indicated the need for early and immediate diagnosis and treatment of the ailments which were found to cause losses so that the mortality could be restricted and higher intensities of selection by way of culling the cows for low production and other economic reasons could be achieved. The results of reproductive traits indicated that the effect of level of inbreeding varied greatly and in general there was deterioration in the traits among marginally inbred, moderate inbred and closely inbred groups while the trend was reverse in highly inbred cows. The reproductive traits recorded higher values during first lactation and in later lactations then did not differ much. The results obtained for different life time traits indicated that per day of production life and life time production were lower for herds having higher herd life and productive life and vice-versa. The results obtained concerning the effect of age at first calving on different first lactation traits revealed that the optima differed from herd to herd and from trait to trait, within a herd, indicating no significant role of age at first calving in determining these traits. It is concluded from the estimates that 30-39 months of age at first calving would be optimum for heifers to have higher performance in later life.
Author : Rashid Hussain Pirzada
Publisher :
ISBN 13 :
Total Pages : 430 pages
Book Rating : 4.:/5 (482 download)
Download or read book Genetic Analysis of Production, Fertility and Health Traits of Dairy Cows written by Rashid Hussain Pirzada and published by . This book was released on 2001 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rajani Kant Misra
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (73 download)
Download or read book Genetic Analysis of Production and Reproduction Traits in Pure Bred Indigenous Cattle and Their Crosses with Friesian written by Rajani Kant Misra and published by . This book was released on 1973 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (923 download)
Download or read book Quantitative Genomic Approaches for the Genetic Analysis of Complex Traits in Livestock Species written by and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation deals with the genetic analysis of complex traits in livestock species. The first part focuses on the analysis of bull fertility with the aim of finding and characterizing genomic regions responsible for the genetic variation in this trait in cattle. Two complementary studies were performed, namely a genome-wide association study and a subsequent quantitative trait pathway-based analysis. These studies identified genomic regions, and particularly individual genes and pathways that showed significant effects on bull fertility. These findings contribute to a better understanding of the genetics underlying this complex traits in cattle, as well as provide opportunities for changing fertility by means of selective breeding. The second part of this thesis tackles the effect of maternal nutrition on the epigenome of the offspring in order to understand the genetic mechanisms underlying fetal programing in livestock. In particular, the effect of maternal methionine supplementation on the transcriptome of bovine preimplantation embryos, and the impact of different maternal diets on the transcriptome of fetal tissues in sheep were investigated. These studies provided evidence that maternal diet can indeed modulate gene expression in the offspring. Determination of gene expression changes could foreshadow potential effects of maternal diets on the future development of offspring, such as postnatal growth, production, health, and reproductive performance. The last part of this thesis evaluates the inference of causal networks in multivariate genetic systems. In particular, the inference of causal networks including latent variables in a quantitative genetics context, and the reconstruction of gene-phenotype networks integrating multi-omics data were investigated. Both procedures were applied to pig data to unravel the mechanisms underlying the antagonist relationship between growth and meat lean content with fat deposition and product quality. More generally, the proposed methods provide useful analytical tools to further learning about phenotypic and molecular causal structures underlying complex traits in farm species
Author : Ioannis Ntzoufras
Publisher : John Wiley & Sons
ISBN 13 : 1118210352
Total Pages : 477 pages
Book Rating : 4.1/5 (182 download)
Download or read book Bayesian Modeling Using WinBUGS written by Ioannis Ntzoufras and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: A hands-on introduction to the principles of Bayesian modeling using WinBUGS Bayesian Modeling Using WinBUGS provides an easily accessible introduction to the use of WinBUGS programming techniques in a variety of Bayesian modeling settings. The author provides an accessible treatment of the topic, offering readers a smooth introduction to the principles of Bayesian modeling with detailed guidance on the practical implementation of key principles. The book begins with a basic introduction to Bayesian inference and the WinBUGS software and goes on to cover key topics, including: Markov Chain Monte Carlo algorithms in Bayesian inference Generalized linear models Bayesian hierarchical models Predictive distribution and model checking Bayesian model and variable evaluation Computational notes and screen captures illustrate the use of both WinBUGS as well as R software to apply the discussed techniques. Exercises at the end of each chapter allow readers to test their understanding of the presented concepts and all data sets and code are available on the book's related Web site. Requiring only a working knowledge of probability theory and statistics, Bayesian Modeling Using WinBUGS serves as an excellent book for courses on Bayesian statistics at the upper-undergraduate and graduate levels. It is also a valuable reference for researchers and practitioners in the fields of statistics, actuarial science, medicine, and the social sciences who use WinBUGS in their everyday work.
Author : Robert C. Goodling
Publisher :
ISBN 13 :
Total Pages : 316 pages
Book Rating : 4.:/5 (89 download)
Download or read book The Effects of Synchronization Protocals on Genetic Parameters of Reproductive Traits in Dairy Cattle written by Robert C. Goodling and published by . This book was released on 2004 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter J. Chenoweth
Publisher : Elsevier Inc. Chapters
ISBN 13 : 0128059966
Total Pages : 45 pages
Book Rating : 4.1/5 (28 download)
Download or read book Genetics and the Behavior of Domestic Animals written by Peter J. Chenoweth and published by Elsevier Inc. Chapters. This book was released on 2013-04-22 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: This chapter describes the reproductive and maternal behaviors of different livestock species (cattle, horses, pigs, goats, and water buffalo) with an emphasis on those traits which are genetically conserved. All of the species discussed are polygynous and promiscuous, and females undergo estrous cycles in which males are mainly attracted by movement and posture cues. Major differences in both reproductive and maternal behaviors are observed between “prey” and “predator” type species. Genetic variation also occurs within species, with breed and line differences being observed in all of the behaviors discussed, allowing selection for optimal reproductive and maternal behaviors. However, modern livestock systems, which emphasize production traits, can diminish reproductive and maternal traits and increase detrimental behaviors, such as piglet crushing and savaging in sows. With modern selection tools, greater emphasis on positive reproductive and maternal traits is achievable within the context of profitable production.
