The proceedings of the 12th World Congress on Genetics Applied to Livestock Production provide you with 816 papers representing the leading research in livestock genetics around the globe. This book covers all aspects of genetics applied to livestock production in 44 sections. Next to the exciting plenary speakers, and the recurrent technical and species orientated sections, there are sections focusing on specific challenges for animal breeding. For instance, large-scale phenotyping of individual animals, use of whole genome sequence data and improving genomic prediction, and sessions on the contribution that genetics can make to societal challenges, like animal welfare, climate change, biodiversity, or control of infectious diseases.