Evaluation of relations between performance discipline scores in Friesian mares at performance tests

Results of performance tests were evaluated in three groups of Friesian mar es with frequencies of 24, 41 and 12 individuals. Three-year mares underwen t five-week training at the main training center in Drachten. The level of mare performance was evaluated in all test disciplines. Besides this elemen tary analysis of scores and their variability, differences in trait, varian ces between the groups were examined. Differences in the pace, trot, rideab ility and working character were significantly different. Relations of scor es in the other test disciplines were also studied. Mares with good movemen t mechanics were found to receive better evaluation also in other disciplin es. It is recommended to include endurance tests in the applied testing sys tem. The results of this study provide data for comparison with tests of ho rses of other autochthonous breeds.