Genomische Selektion: Stand der Implementierung beim Fleckvieh

From December 2010 on a routine application for genomic breeding value estimation in the German-Austrian Fleckvieh population was established that is conducted monthly. Genomic breeding values are estimated for a total of 45 traits. A special aspect of the current implementation is the division of labor between the three evaluation-centers in Bavaria, Austria and Baden-Württemberg that follows the division of labor already established in the conventional breeding value estimation. Starting from a central preparation step for genotypes, results are propagated to the partners for the estimation of genomic breeding values for their specific traits. A two step approach with method GBLUP based on the use of a genomic relationship matrix is used for all traits. Results of the current validation show a substantial gain in realized reliabilities from genomic breeding values over the reliabilities of the simple parent-average. However, gains do not reach values reported for thie Holstein population at a comparable size of the calibration sample, which is probably an effect of the significantly higher effective population size in Fleckvieh.