The impact of genomic selection on genetic diversity and genetic gain in three French dairy cattle breeds

Background In France, implementation of genomic evaluations in dairy cattle breeds started in 2009 and this has modified the breeding schemes drastically. In this context, the goal of our study was to understand the impact of genomic selection on the genetic diversity of bulls from three French dairy cattle breeds born between 2005 and 2015 (Montbeliarde, Normande and Holstein) and the factors that are involved.