CHF79.00
Download est disponible immédiatement
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.
Auteur
Hasan Khatib is an Associate Professor in the Department of Dairy Science at the University of Wisconsin-Madison. Dr. Khatib has taught a variety of undergraduate and graduate courses on animal breeding and genetics. He is also the lead editor of Livestock Epigenetics published by Wiley in 2012.
Contenu
Contributors ix
Manuscript reviewers xi
Preface xiii
**1 Decoding and Encoding the DNA of Teaching and Learning in College Classrooms 1
**Michel A. Wattiaux
Introduction 1
Teaching and learning: definitions 1
Understanding learning 2
Understanding teaching 5
Implications for classroom design in the twenty-first century 6
Final thoughts 9
References 10
Review questions 11
Section 1: Quantitative and Population Genetics 13
**2 Mating Systems: Inbreeding and Inbreeding Depression 15
**David L. Thomas
Introduction 15
Inbreeding 15
Cause of inbreeding depression 18
Quantifying inbreeding 20
Genomics and inbreeding 23
Summary 23
Further reading 24
References 24
Review questions 24
**3 Genomic Selection Inbreeding and Crossbreeding in Dairy Cattle 25
**Kent Weigel
Introduction 25
Genomic selection 25
Crossbreeding 28
Inbreeding and genetic defects 29
Summary 30
References 30
Review questions 31
**4 Basic Genetic Model for Quantitative Traits 33
**Guilherme J. M. Rosa
Introduction 33
Quantitative traits 33
Expected value and variance: the normal distribution 33
Basic genetic model for quantitative traits 35
Heritability and selection 35
Predicting rate of genetic change from selection 36
Further reading 37
References 37
**5 Heritability and Repeatability 39
**Guilherme J. M. Rosa
Introduction 39
Heritability 39
Estimation of heritability and variance components 40
Prediction of breeding values and of response to selection 41
Repeatability 41
References 42
**6 Applications of Statistics in Quantitative Traits 43
**Hayrettin Okut
Population and sample 43
Descriptive statistics 43
Graphically examining the distribution of the data 47
Normal distribution 49
Exploring relationships between variables 53
Summary 59
Appendix 6.1 62
Further reading 62
References 62
Review questions 63
Section 2: Applications of Genetics and Genomics to Livestock and Companion Animal Species 65
**7 Genetic Improvement of Beef Cattle 67
**Michael D. MacNeil
Introduction 67
Single trait selection 67
National cattle evaluation 69
Multiple trait selection 71
Summary 71
Further reading 71
References 72
**8 Genetic Improvement in Sheep through Selection 73
**David L. Thomas
Products from sheep 73
Selection among breeds 73
Selection within a breed or population and the Key Equation 73
Adjustment for environmental effects 73
Phenotypic selection 75
Estimated breeding values (EBV) 75
Using multiple sources of information 76
Genetic correlations 76
Selection intensity 78
Generation interval (L) 79
Predicting progress from selection 79
National genetic improvement programs 80
Summary 81
Further reading 82
References 82
Review questions 82
**9 Genetic Improvement Programs for Dairy Cattle 85
**Kent Weigel
Introduction 85
Data collection infrastructure 85
Estimation of breeding values 87
Selection for increased productivity 89 Selection for functio...