Genetic evaluation with uncertain paternity

The standard method for the genetic evaluation, i.e., BLUP needs some phenotype and pedigree data. Sometimes pedigree data is not accurate in a sense that there are several potential parents. Usually, this is the case with the use of multiple sires in the large groups of animals, say beef cattle or meat sheep in extensive conditions. However, we usually have only few candidates and this information can be included in the model. Robert Tempelman has a great presentation on this issue; giving an overview and presenting their research.

There are also some other very fine presentations on this and related issues in beef cattle breeding.