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Genetic evaluation: use of genomic data in large-scale genetic evaluations in dairy cattle breeding

Code: 9781786765673
Joel Ira Weller, The Volcani Center, Israel

Chapter synopsis: Genomic evaluation has been successfully implemented in nearly all advanced dairy producing countries. Methods to compute genomic genetic evaluations for dairy cattle can be divided into single-step methods and multi-step methods. This chapter introduces the use of mixed model equations and the numerator relationship matrix, outlining the two basic methods used to compute genomic evaluations. The chapter explains the process of validating methods of computing genomic estimated breeding values. Finally, the chapter examines how genomic selection has changed the dairy cattle industry and looks ahead to future research trends in this area, as well as providing detailed guidance on further reading on the subject.

DOI: 10.19103/AS.2019.0058.22
Table of contents 1 Introduction 2 Mixed-model equations and the numerator relationship matrix 3 The two basic methods used to compute genomic evaluations 4 Validation of methods for computation of genomic-estimated breeding values 5 Bayesian methodology and unequal weighting of markers 6 What about the genes? 7 How genomic selection has changed the dairy cattle industry 8 Conclusion 9 Future trends 10 Where to look for further information 11 References

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