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Vyhodnocení vlivu kmene Przedswit na sportovní výkonnost koní v ČR
Pavlištová, Iva
The aim of the diploma work was to evaluate the performance of horses descended from the foundation stock Przedswit in show jumping and dressage competitions in the Czech Republic. The basis for the elaboration of this work was created by me in the monitored group of horses from 2008 to 2012. Database used for the evaluation was created from data belonging to overviews of sports horses as well as the online studbook of Czech warmblood. For statistic utilization we used GLM method. In case of statistical significancy we used multiple comparisons method Scheffe for evaluation of the differences between individual factors. The statistical software UNISTAT version 5.1 was used. In both categories we evaluated the effects of pedigree, year of the sports season, sex, horse breed, level of the competitions and number of starts. In show jumping we proved that effect of pedigree is statistically significant, the method of multiple comparisons showed that offspring by breed stallions Przedswit is most efficient and together with other three groups of horses are more efficient than horses which are offspring by Przedswit stallions and mares by Przedswit. In show jumping we found other three factors as statistically significant. First of them was year of the sports season, where we proved better performance of the horses who started in 2012 than horses who started in 2008. Second of the factors was the effect of age, where any significant different pairs wasn't founded, so we compared the averages and we found that 17 years old were on the top with 4,1188. The last highly significant effect was the level of competitions, where the most efficient were horses which jumped level "T" though they were the least numerous group. In dressage we found only one factor as statistically significant and it was level of competitions. With method of multiple comparisons we found significant differences between individual levels. As the most efficient were found horses which achieved of level "T", they were better than all of the other groups ("Z", "L", "S", "ST"). The least numerous group of "ST" was better than lower level groups ("Z", "L", "S") but worse than group "T". The group "S" was significantly better than groups "Z" and "L" but worse than groups "ST" and "T". The results of groups "Z" and "L" are appear to be the worst, although the largest group.
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