Interbull new services: Current and Future

Interbull Centre has been closely working with several working groups on different topics spacing from the improvement of the MACE model to a revision of validation methods due to genomic pre-selection to expansion of the MACE and Interbeef portfolio to new traits. The activity of such working groups has progressed so nicely that theoutcome of their research has been either recently implemented or it is aimed for an implementation in the near future (within one year’s time). The present articleaimed at providing the reader with an overall view of suchactivities and the related new services they have, or are going to, generate

Invited review: Reliability computation from the animal model era to the single-step genomic model era

The calculation of exact reliabilities involving the inversion of mixed model equations poses a heavy computational challenge when the system of equations is large. This has prompted the development of different approximation methods. We give an overview of the various methods and computational approaches in calculating reliability from the era before the animal model to the era of single-step genomic models. The different methods are discussed in terms of modeling, development, and applicability in large dairy cattle populations. The paper also describes the problems faced in reliability computation. Many details dispersed throughout the literature are presented in this paper. It is clear that a universal solution applicable to every model and input data may not be possible, but we point out several efficient and accurate algorithms developed recently for a variety of very large genomic evaluations

Short communication: Genetic parameters for fertility-related disorders in Norwegian Red

acceptedVersio

Information from later lactations improves accuracy of genomic predictions of fertility-related disorders in Norwegian Red

acceptedVersio