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Vyhodnocení vybraných hřebců českého teplokrevníka podle kvality dcer
Vlášková, Tereza
The diploma thesis deals with an evaluation of chosen Czech warm-blooded stallions based on the quality of their daughters. A collection of 474 mares which are registered in a Czech warmblood studbook and passed a basic performance test of three years old mares was chosen. Following information was collected: breed, birth year, inclusion year, father, jump index of father, plus points for class, type, exterior, performance and jump index. Collected data was processed in programs Microsoft Excel 2016 and UNISTAT 6.5, with the use of a general linear GLM model with a fixed effect. The GLM model was used to analyse the influence of individual factors on the dependent variables (class, type, exterior and performance of the mares). Subsequently, in case of statistically significant influence of the observed effect, the differences between monitored individuals were determined by multiple comparison according to the Tukey-B method and Scheffe method. For the class and exterior, the best rated mares were after the stallion 2997 Aristo Z (x̄ = 7,78 points). The best mark for category were also given the mares after father 2997 Aristo Z (x̄ = 7,90 points). The most performing and stable offspring has the stallion 1028 Manillon Rouge (x̄ = 7,94 points). Best jump indexes have again the daughters of the stallion 2997 Aristo Z (x̄ = 123,2 points). Through the general linear module, it was found out that the father has statistically highly conclusive influence on the class, exterior and performance of daughters (mares), since P ≤ 0,01. Other factors do not have statistically conclusive influence on dependent variables.
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