The relation between rear leg set and the culling rate is shown in the figure. It may be noticed that first-lactating heifers with scores between 4 and 7 for rear leg set show the lowest culling rates. The differences between these classes are, however, very small. Heifers with straight legs (score = 1) or very sickled legs (score = 9) have significantly higher culling rates of about 10% higher. For this reason it might be concluded that rear leg set is an optimum trait in regard to herdlife.