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Vyhodnocení vlivu příbuzenské plemenitby na životaschopnost a dlouhověkost koní Převalského
Nogová, Barbara
The literary overview in the first chapter focuses on the occurrence and discovery of the Przewalski horse. It also deals with their own characteristic. Information about the lifespan of Przewalski horses and individual breeding lines are specified too. Attention was also engaged to the topic of inbreeding and inbreeding depression. The last chapter of a literary overview discusses the current state of the breed. The aim of these theses was to process the data from the general studbook of the Przewalski horses and to evaluate the effect of inbreeding on the length of life of these horses. Data required to statistical evaluation was obtained from the International studbook of Przewalski horse from 2008 and from publicly available internet version of these book. The database contained informations about a sex, date of birth, date of death, lifespan, and the value of the coefficient of inbreeding. Thus obtained data were processed using the program Microsoft Excel 2010 and statistically evaluated in the programs of the UNISTAT 6.5 and SAS 9.1.4. Used to be a basic statistics functions, the Tukey-B test, generalized linear model and Pearson's correlation. Assessing the results of the statistics was detected highly significant effect of sex, year of birth, and the values of the coefficient of inbreeding on the lifespan of Przewalski horses. However, for foals of Przewalski horses, that lived more than two years, has been demonstrated only effect of sex on the lifespan.
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EXTENSION OF PRZEWALSKI HORSES IN THE CZECH REPUBLIC
KARDOVÁ, Lenka
The thesis summarises breeding of Przewalski´s Horse (Equus przewalskii) in the Czech Republic and worldwide. Its aim is to characterise fundamental evolutionary phases, to work out the causes of their extinction in the country side and to follow their rescue in zoological gardens across the world. It describes transportations of Przewalski´s Horse back to country side into their original environment. Furthermore it also summarises the number of transportations and it analyzes the causes of reintroduction failures.
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Arrangement of Mane of Equidae in Relation to Species, Pedigree and External Factors.
TÖRÖKOVÁ, Yvona
This work dealt with comparing of morphology of a mane of both, Equus przewalskii - the representatives of wild horses - and some chosen species of domestic horses. The morphology of a mane explains in more detail why the manes of domestic horses and some individuals of Equus przewalskii do not stand. This fact is sometimes used as an argument for labelling Przewalski's horses as not-pure-blooded . From the morphological point of view, the length of a hair of the mane and its diameter were the most important arguments depending on a season of the year and the age of horses.
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