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Development and current state of Haflinger breed in the Czech Republic
PATEROVÁ, Šárka
This thesis deals with the current state of Haflinger breeding in the Czech Republic. The number of these horses has steadily risen in the last years and the number of horses ranked among the most important gene lines in the world has risen as well. At the same time the breed found use in other areas than the original agricultural one. The thesis also briefly deals with the world's superpowers in the Haflinger breed, and their significant expansion in the world. The aim of the thesis was to map the current state of stud horses in the Czech Republic. As an overview, an analysis has been made of the current breeding population, comparing the data of the stallions bred in the Czech Republic that are currently enrolled to breed with the mares included in the Main Stud Book. In the conclusion, all the aforementioned differencies are rated and discussed.
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Breeder and economic evaluation of beef cattle rearing
ZRŮBKOVÁ, Ludmila
This dissertation deals with the issue of breeding and economic evaluation of beef cattle within the company 'Zemědělské družstvo Krásná Hora nad Vltavou a.s.' between 2009 and 2010. The goal of this work is to evaluate the breeding standard of Blonde d' Aquitaine livestock breed in the above-mentioned company's breeding barns in Vysoký Chlumec, Obděnice, Skrýšov, Hojšín and Narysov. The results show that the profitability of beef cattle breeding is possible only on condition of subsidies and significant wages and overhead costs lowering.
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Possibilities of increasing of European grayling (Thymallus thymallus L.) quality stock production for running waters
NEBESKÝ, Václav
European grayling (Thymallus thymallus L.) is important and ancestral kind of fish in Czech Republic. Today number of grayling in open waters is decreasing. It caused many reasons. Mainly increasing fishing pressure, unfavourable regulation of streams, water pollutinon, raising occurrence of predators etc. That is why is necessarily devote care to this problem. Main goals of this work were optimalization of technologies to decrease post-spawning mortality of grayling spawners. Optimalization of technologies for breedig offspring of European grayling (Thymallus thymallus L.). Use artificially propagated stock of European grayling (Thymallus thymallus L.) in conditions of open waters. Experiments were done in Blanice River in South Bohemia (Czech Republic) and a hatchery of the Czech Anglers´ Union in Husinec. Part works were done in 2005, but majority in 2006. Results of this work indicate that is possible decrease post-spawning mortality of grayling spawners with using antibiotics. Also using stockfish from controlled conditions for restocking the open waters is conditionally possible. Problem is however with high losses after release.
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EVALUATE THE PERFORMANCE PARAMETERS OF THE BREEDS OF COMMON CARP AND ITS CROSSBREDS
KŘÍŽ, Michal
The aim of the thesis was to evaluate the performance parameters of the breeds of common carp and its crossbreds by using the top-crossing. On the maternal position the Hungarian synthetic mirror carp line (HSM) was used. On this line, males of HSM, Telč mirror carp (TeL), Northern mirror carp (M72) and Amur mirror carp (AL) were crossed and a hybrid of Ropsha carp (ROP) and Tata carp (TAT) was used as their control group. Rearing of the tested groups was monitored from larval stage until their market size in ponds with a semi-intensive way of management in three localities (2 organisations). In the first year, each tested group was bred individually with internal control group of a different scaly covering phenotype in order to correct the influence of the environment on the weight achieved. In the second and the third year, all the groups were group-labelled and bred together in triplicate (three ponds) localities. In the individual stages of testing, the weight and the survival rate were recorded. Moreover, in the market size stage the biometric measurement and slaughtering value were evaluated. In the overall assessment of the results from all the localities carried out by the ANCOVA procedure, the highest weight at the K3 age was achieved by the hybrid HSM x AL (1413 {$\pm$} 31.5 g; Last square means {$\pm$} S.E.), whose weight was statistically comparable to the other hybrids (HSM x M72 a HSM x TeL). However, it was the only noticeably higher weight in comparison with the HSM (1257 {$\pm$} 31.5 g) with its ordinary heterosis effect of growth on the level of 12.4%. During the third year of testing, the survival ranged from 69.0 % in HSM x Tel to 73.4% in HSM x AL and the values were statistically comparable. The yield parameters (the proportion of the processed body, the proportion of filets with skin and the skinless ones) were similar in all the groups. In the previous periods of testing the results reflected the situation in the market size. As a result, it is concluded that preferably the hybrid HSM x AL could be exploitable in commercial breeding.
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