Samenvatting

This research is aiming to investigate the changes in the amount of Thoroughbred and Arabian blood within the Oldenburger Warmblood population from 1990 till 2010 to see how the Oldenburger Warmblood population changed. Furthermore the sport results of the Oldenburger horses born in 1990 and 2000 will be analysed to investigate if there is a correlation between the percentage of English Thoroughbred/Arabian blood in the Oldenburger Warmblood horses and their performance in sport.