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Fattening of heifers in Sumava mountains
VALTER, Jiří
The main goal of this master?s thesis is to assess heifer fattening conducted in two grazing cycles in the mountain region of Southern Bohemia. The observation was carried out in two cycles in the years 2008/2009 and 2010/2011. A total of 99 heifers was observed, all of them crossbreeds of Aberdeen Angus or Simmental cattle. In the first grazing cycle, the heifers were raised on pasture together with the mothers and stabled for the winter season. The heifers were slaughtered after the end of the second grazing cycle in the next year. Live weight of the heifers was recorded at the end of the first grazing cycle, at the end of the winter season and again at the end of the second grazing cycle. The weight of the dressed carcass and results of the SEUROP carcass classification were further recorded. The average daily gain was calculated for each period from the live weight. The data set was sorted by the month of birth and by the SEUROP class score. Data analysis was conducted using Microsoft Excel. In order to evaluate the results, basic statistical parameters were calculated for each of the selected variables and the cogency of the differences between the groups was tested with the two-tailed t-test at the corresponding level of significance. The average weight of the heifers at the end of the first grazing cycle was 281,2 kg, average weight at the end of the winter season was 366,1 kg and the average weight at the end of the second grazing cycle was 511,6. The average age of the heifers at the end of the first grazing cycle was 221,5 days and they were slaughtered at the average age of 568,9 days. The average daily gain was 1,16 kg during the first grazing cycle, 0,53 kg during the winter season and 0,81 kg during the second grazing cycle. The lifetime average daily gain was 0.85 kg. Net gain averaged 0,45 kg per heifer. The average weight of the dressed carcass was 253,8 kg. 2,1 % of the heifers gained SEUROP class ?U?; 54,5 % class ?R? and 43,4 % class ?O?. The heifers showed considerable variability, especially in the weight at the end of the second grazing cycle (sx = 42,4 kg). Data analysis revealed correlations of r2=0,62 between weaning weight and slaughter weight and r2=0,69 between weaning weight and JUT weight.
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Analysis of the political instrumentalization of the periodic press Mladá fronta DNES in the period before elections to the Chamber of Deputies of the Parliament of the Czech Republic in 2013
Dobrovodský, Martin ; Křeček, Jan (advisor) ; Nečas, Vlastimil (referee)
The diploma thesis Analysis of the political instrumentalization of the periodic press Mladá fronta DNES in the period before elections to the Chamber of Deputies of the Parliament of the Czech Republic in 2013 examines, if leader of the political party ANO Andrej Babiš used his position of the owner of the media group MAFRA to influence media content in the periodic press Mlada fronta DNES during the period before elections to the Chamber of Deputies of the Parliament of the Czech Republic in 2013. Theoretical framework briefly describes the basic concepts of political communication and geopolitical division of the models of political communication including the Czech media scene. Focus is primarily on the development and possible ways of instrumentalization of printed media operating in the Czech media market after 1989. Results of quantitative research showed that four other political parties gained more media attention then political party ANO which ended up second in the election. The title pages of the Mlada fronta DNES therefore was not used to increase promotion of Andrej Babis and his political party. The final part of the research interprets the results of quantitative analysis regarding the possible instrumentalization in terms of political topics presented on the front pages of the...
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Effect of various plasma sources on seed growth. Laboratory experimen in Buckwheat
Šerá, Božena ; Gajdová, Iveta ; Čermák, M. ; Gavril, B. ; Hnatiuc, E. ; Kováčik, D. ; Kříha, V. ; Sláma, J. ; Šerý, M. ; Špatenka, P.
Germination and early growth of buckwheat (Fagopyrum aesculentum) after low-temperature plasma discharge treatment in air gas generated in various apparatus were tested. Three pretreatment times were used: 180 s, 300 s and 600 s. Number of germinating achene, length and weight of sprouts were measured. The data was analysed with two-way ANOVA. A significant influence of the type of plasma apparatus, time of exposure and combination of both factors were found. The positive effect on germination and early growth was observed after application of GlidArc plasma. The opposite effect of PDBV apparatus, which is characterized by plasma with a high power density, was observed. Shorter pre-treatment times for this apparatus must be therefore used.
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Health center
Dawid, Lukáš ; Hazucha, Juraj (referee) ; Donaťáková, Dagmar (advisor)
Diploma thesis designs a barrier free new building of medical devices – policlinic (health center) with 14 medical workplaces. Object has three floors and basement. The building is covered by a vegetation flat roof. Building of policlinic is based on strip foundations and load-bearing walls are made from sand-lime blocks. Horizontal systém is created like reinforced concrete ceiling and in the same way internal staircase. The building is design at passive architecture – have compact form, thick layer of insulation and airtight cover. The main glass facade is oriented to the sout. There is used heat recovery air conditioning and heat pumping for heating in building. Health center satisfy currently legislation.
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Effect of admixtures on the properties of metakaolin geopolymer
Halasová, Kristýna ; Vyšvařil, Martin (referee) ; Rovnaník, Pavel (advisor)
Geopolymers are amorphous to semi-crystalline aluminosilicate polymers which are formed from inorganic polycondensation reaction of a solid aluminosilicate precursor with an alkaline sodium hydroxide or silicate. The resulting materials exhibit high durability, resistance to aggressive environments, high temperature resistance and many other properties that make them have received much attention in recent years, not only in construction. This thesis describes the influence of additives commonly used in concrete and mortar (water reducing, superplasticizer, air-entraining, foamer and defoamer, anti-shrinkage, stabilization) on the behavior of metakaolin in geopolymer fresh and hardened state. It describes metakaolin geopolymer effect on rheological properties of fresh mixtures, compressive strength and flexural strength after 28 days and a density in the fresh and hardened state.
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Microclimate study rooms with natural ventilation
Hajn, Daniel ; Uher, Pavel (referee) ; Rubinová, Olga (advisor)
Master thesis solves the level of CO2 concentration in the premises of universities in Brno. The main objectives of the processed data measured from two monitored rooms, compare it with the permissible limits of concentration, evaluate the effectiveness of natural ventilation and develop a more efficient way to exchange air with forced venti-lation. Space solutions are part of the Philosophical Faculty of Masaryk University, the fourth above-ground floors of buildings A and B1. The theoretical part deals with CO2 concentrations, measurement methods, the influence of CO2 on the organism and the assessment of daylight.
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Hotel
Wawreczka, Stefan ; Blažková, Vendula (referee) ; Daněk, Lukáš (advisor)
Diploma thesis deals with the design documentation hotel building in the village of Vendryně. The building is designed in accordance with the existing this area and the slope of the terrain. This is a two-tier four-storey building. Above the 1st floor is designed flat vegetation roof and above the 4th floor is gabled roof. The building contains part of the accommodation, dining area and facilities for staff. Work includes architectural and layout design, preparation of construction drawings, design of fire safety design of buildings, basic thermal technical assessment and calculation of a selected wooden truss and a draft air exchange for restaurants and kitchens. The entire work will be complemented by a text part.
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Ventilation of near zero energy buildings
Fojtík, Pavel ; Horká, Lucie (referee) ; Hirš, Jiří (advisor)
Diploma thesis is focus on ventilation systems in Zero energy building and indoor air quality. Whole thesis has three part. First is about theory, where you can find law regulations and standards connected wit nZEB, factors influence IAQ and introduced ventilations systems. Second part is focus on particles transport in buildings like a nZEB and in heat recovery units. Last part of the thesis shows own design of the nZEB for Nový Lískovec.
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Study of Factors Influencing the Development of "Water Bloom" in the Water Reservoir Seč
Forczek, Sándor ; Holík, Josef ; Rederer, L. ; Koza, V.
In this work, we monitored several parameters that influence the development of algal bloom on the\nwater reservoir Sec. Primarily climatic conditions belong to the monitored parameters that influence\nthe population dynamics of algae (air temperature and rainfall, incident light), temperature\nstratification of water, concentration of oxygen, concentrations of total phosphorus, phosphate,\nvarious forms of nitrogen and organic substances, turbidity and also diversity and frequency of\nphytoplankton and zooplankton species. Between 2012 and 2014 have not occurred massive algal\nblooms in the summer months, however the measured physical, chemical and biological data, can be\nused to assess the development of algal population. The population dynamic factors influencing algal\ngrowth must be understand to be able to predict formation and to attempt suppression of algal\nblooms.
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Insurance of tour operators
Sobotová, Kateřina ; Ducháčková, Eva (advisor) ; Oborilová, Mária (referee)
This bachelor thesis deals with insurance of tour operators. At the beginning are characterized differences between tour operators and travel agents that have to be distinguished for this insurance product. The second chapter focuses on development of tour operators insurance in the Czech Republic. There is described the legislative process of the law 159/1999 Sb and its amendment about some conditions of entrepreneurship in the field of tourism. There are also specified conditions for gaining and sustaining guarantee insurance in case of tour operator bankruptcy. A part of the chapter is devoted to the bank guarantee and the state supervision. The next chapter provides an overview of insurance companies that offer this type of insurance. Last two chapters are more practical. One of them analyses the amendment of the law 159/1999 Sb. issued on 1 January 2016. There are summarized reasons of this amendment and comparison of the law before and after the amendment. The other practical chapter describes the reasons of bankruptcy of tour operator called Marine Tour and the procedure in case of tour operator bankruptcy. The conclusion summarizes recommendations for a selection of a suitable tour operator.
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