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Chovatelský přínos lineárního popisu exteriéru teplokrevných hříbat
BLÁHOVÁ, Aneta
The bachelor thesis deals with the linear description of warmblood foals' exterior and its breeding value. The aim of this thesis was to provide an overview of the current knowledge regarding linear description and the latest information on the evaluation of warmblood horses. Another aim was to create a summary of the evaluation of warmblood foals using the linear description method, evaluate the correlation between selected traits of the linear description of the observed foals and their sires, and relate the linear descriptions of stallions and their offspring. A total of 11 traits of 1139 foals born between 2020 and 2023 were included in the evaluation, as well as the linear description of 22 traits of their fathers, which included 177 stallions of the Czech warmblood breed. For closer examination, only stallions with more than 23 offspring were selected. This criterion was met by 12 stallions. The average score for all traits of the linear description of the observed foal population was around 3. The score of 3 was also the most frequently given score for most traits. An exception was the evaluation of the head, where the mode was a score of 4. The score of 3 dominated in the evaluation of the hoof (89%), the stan-ce of the forelimbs (88%), the back (84%), the hind suspensory ligaments (79%), the croup (71%), and the stance of the hind limbs (69%). For other traits, the frequency of assigned scores was closer to a normal distribution. Correlation analysis showed that there is a low degree of dependency between a foal's head and the nobility of its father (r = 0.15), and that foals with a betterrated and more noble head have fathers with a higher score in the nobility trait. The results of the thesis compare the total foal population with the offspring of individual stallions. The outputs showed, for example, that foals from the stallion Cannon Reuvekamp's Z have a smaller and more noble head with an average score of 3.91 compared to the rest of the population. Foals from the stallion Heartbreak, who have a more open stance of the hind limbs with an average score of 2.76 compared to other foals. This data should be beneficial for breeders and provide useful information when selecting a suitable stallion for their mares.
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