|
Effect of sex on growth and formation of dorsal muscle of pigs
Fáberová, Gabriela ; Čítek, Jaroslav (advisor) ; Zadinová, Kateřina (referee)
Effect of sex on growth and formation of dorsal muscule of pigs Summary The aim of this thesis is to determine the influence of gender on the growth and formation of the pigs dorsal muscle. Growth is one of the basic phenomenon characterizing living organism. Is a creation of nonliving to living matter. The amount of body mass is not constant through the life, it is changing significantly. In the early postnatal period is skeleton growing faster compared to muscles and fat then leads to faster growth of muscle and in the last period called maturity to the fattening. Evaluating growth has a significant gender effect. In case of pigs, it is common to feed barrows and gilts. Nowadays it begins to think about feeding of boars or the imunocastrates. Due to different hormonal activities we can expect different muscle and fat deposition. The task of this study was to clarify the influence of gender on the formation and growth of pigs dorsal muscle. There were 72 pigs tested in total. Pigs were housed in pairs in cotes and divided by gender for pigs, boars, imunocastrates and sows. This subpopulation of genotype DanBred animals were divided to 1/4 (18ks) uncastrated male pigs (K) 1/4 (18ks) hormonally castrated male pigs (I), 1/4 (18ks) barrows (V) and 1/4 (18ks ) gilts (P). Average live weight of pigs at the start of the trial was 28.5 kg, while the test was conducted to average 107 kg bodyweight. Through all time pigs were fed ad-libitum KKS. During the test it was monitored at weekly intervals individual live weight, back fat thickness at A, B, muscle depth at A, B and the total percentage of muscle for all categories of pigs. The obtained results show that the growth and formation of a long dorsal muscle are influenced by gender. When comparing the weight in a given period, we conclude that during the time the difference between gilts and imunocastrates grow up. Best growth had imunocastrates gilts similarly, only was there an earlier stop of the growth. The highest increase in fat and muscle measured at the A and B, occurred in pigs, in sows we can see increasing gains in fat with respect to the period in which they are fattening. Boars had the lowest backfat thickness, imunocastrates. With imunocastrates we evaluate low fat increase compared to the beginning of the observation. The biggest muscle depth measured at A and B had the barrows with gilts and imunocastrates and especially boars did not reach the values as barrows and gilts, who had the highest muscle depth. Biggest % of muscle was measured in sows. A large proportion of muscle can be seen in male pigs. The proportion of muscle mass of imunocastrates was under the average and worst ratio of muscle had especially at the end of feeding barrows indicating that with increasing age there is a significant fattening, compared to the remaining groups of pigs Keywords: pig, growth rate, muscle fibers
|
|
Rozdílný vývoj depopulace venkovského území české a rakouské části Novohradských hor 1930/1991/2011
Havlová, Renata ; Majerová, Věra (advisor)
Tato diplomová práce se zabývá rozdílnými a shodnými rysy českého a evropského venkova. Jedná se o důležité a aktuální téma. Důvodem jsou významné změny, kterými venkov za poslední léta prošel.
Mezi cíle této práce patří prvotně stanovit a sjednotit jednotnou typologii pro český a evropský venkov. Dalším cílem je stanovit zásadní historické peripetie, které se podílely na vývoji jednotlivých venkovských prostředí. Významným cílem práce je vyhodnotit na českém a evropském venkově změny kulturně-sociologické, demografické a geografické, ekonomické a politické aj. Cílem práce je dále vyhodnotit, zda a jakým způsobem probíhá rozvoj a financování venkova. Kdo a jakým způsobem se na rozvoji a financování podílí. Do jaké míry je pro jednotlivé evropské a české venkovské oblasti důležité působení Evropské unie a využívání dotačních titulů. A také do jaké míry venkov změnily. Zda se bude venkov ubírat k evropsky požadované konvergenci, či naopak k divergenci.
Z metodologického hlediska je použit kvantitativní výzkum s využitím deduktivní metody. Data jsou čerpána zejména z Českého statistického úřadu, statistického úřadu Evropské unie a z Organizace pro hospodářskou spolupráci a rozvoj. Získané údaje jsou pak převedeny do výsledných tabulek a graficky zaneseny do grafů a map. Pro přehlednost je v závěru práce provedena SWOT analýza.
Z hlediska metodologie je venkov chronologicky zarámovat do příslušných teorií regionálního rozvoje a ekonomického vývoje.
Vyústěním této práce je podrobná analýza zjištěných rozdílů. Významným cílem je snaha navrhnout určitá opatření pro udržitelný a prosperující venkovský - regionální rozvoj v českém prostředí.
Do budoucna by se na venkově měla zlepšit a zvýšit občanská vybavenost, dopravní obslužnost, nabídka investorů a celkově zvýšit pozitivní vztah k venkovu s přidanou hodnotou. Výsledkem by do budoucnu na venkově měla být větší hustota obyvatelstva, vyšší porodnost a vyšší zaměstnanost.
|
|
Selection of security software for user data protection
Maděra, Jiří ; Havránek, Martin (advisor) ; Benda, Petr (referee)
This work shows overview of potential electronic threats with which present users can come in contact. This topic is very common theme and we can hear about malicious programs or malware almost from the very beginning of computer age. Therefore, in this work, I try to provide view into the most common threats. But the main goal is to find the best solution for protecting user data against malware. Therefore, in the practical part I tested ten most used antivirus programs. The result of this test should show objectively which solution is for the user the most appropriate in terms of several criteria. The criteria that I chose are, detection ability, system memory usage and the total length of the test.
|
|
Passenger cars' automatic gearboxes
Kubát, Aleš ; Mařík, Jakub (advisor) ; Kotek, Martin (referee)
The aim of this work was to evaluate the development of automatic transmissions in modern automobiles to monitor their reliability and make an evaluation. First, the paper mentions the theoretical definition of automatic transmissions and then a practical assessment of automatic transmissions in terms of fuel consumption, maintenance costs or failure. The work also included comparisons of passenger cars with automatic transmission cars with manual transmissions for modern cars. The conclusion summarizes the conclusions which I reached in my testing, research and personal experiences. The work is finished evaluating the advantages of the use of automatic transmissions in passenger cars and outlining where they will lead the development and utilization of automatic transmissions.
|
|
Importance of vitamins in human nutrition
Želinská, Kateřina ; Orsák, Matyáš (advisor)
This Bc. thesis discusses the basic characteristics of vitamins and their essential role in the functioning of human organism. The first half of the work analyses and addresses the vitamins classification and their structure from the chemical point of view. The second half describes in detail the importance of vitamins for the human body, and for the synthetic substitution of these substances.
|
|
Factors affecting postmortem changes in pork meat
Seilerová, Michaela ; Čítek, Jaroslav (advisor) ; Lebedová, Nicole (referee)
The thesis focused on the summary of the quality of pork. The main indicators of the quality of pork and of meat generally together with a chemical composition and the external and internal factors dealing with the quality of meat are described in the thesis. The various histological structure, the variable chemical content, technological features are found in meat. The structure and composition depends on a way of living, the function of the parts of an animal body, on lots of intravital factors (a kind of an animal, breed, male or female, age, the way of nutrition, the state of health). Meat is a valuable source of nutrients and essential acids for a man. The human organism is not able to synthesize the essential acids itself. Lipids are the important part of meat, their main function is storing energy. They are found as a reserve tissue in the subcutaneus parts of animals or among muscular fibre. The amount of carbohydrates contained in meat is not important, meat is low in carbohydrates. They are only important for meat maturation. Meat is high in minerals and vitamins. It is necesary for a man and should be a part of our diet. The important factor for a meat quality is described as a formation of muscular fibres. There are the thin fibres in the meat of a high quality and the thick and fat fibres in the meat of a low quality. The meat quality depends on a number and charactes of animal fibres. The meat of a high quality is for example loin - it is the meat with fine fibres. The next factor which has influence on a meat quality is course of post mortem changes.We can differentiate four stages in these processes: prae rigor, rigor mortis, aging of the meat and deep autolysis. Post mortem aiging processes can deviate from teh standard from variety of reasons and as concequences we can see quality deviation of the meat for example PSE, DFD, RSE, Hampshire efect and cold shortening.Also the breed has the influance on the quality of the meat namely sensitivity to stress,growth characteristic and parameters of slaughter value, other internal factors are age and sex. External factors which has the influance on the quality of the meat are transport of the animals to the slaughterhouse, attitude of the employees during chasing after the animals, the rest before slaughter, stunning itself,bleeding thereafter and cooling down after slaughtery.
|
|
The effectiveness of the selected investments
Kotrčová, Tereza ; Gebeltová, Zdeňka (advisor)
This thesis is divided into two parts. The first, or if the theoretical part deals with lighting term investments and investment decisions. It is classified in the individual investment in terms of finance and management, and there are defined basic investment phase of the pre-investment phase to the phase of completion and disposal. They are also in the analytical part, outlined the basic sources of investment financing and the methods by which the individual investments evaluated. It defines both the criteria and factors that decide on the implementation of the selected investments. The second part, a practical part focuses already on one particular company, the aim of this section is to compare the knowledge of theoretical and confirm or refute the decision about the effectiveness of selected investments directly for the company. It is an analysis of the impact of investments in the capital of the Company as well as its future benefits. In case of refusal, it is necessary to offer another form of corporate capital utilization.
|
|
Waste prevention and effective waste management in the selected company
Míšková, Markéta ; Mikulová, Vlastimila (advisor) ; Slavomír, Slavomír (referee)
From reason of protection environment, under the pressure of not only administrative, but economic measures too are firms trying to minimise the amount of nascent waste. Therefor is thesis focused to the analysis of waste economy, production and composition of waste in the company WITTE Nejdek in period since 2010 to 2015. There is evaluated dependence the amount of waste similar to communal on number of employees in the company WITTE Nejdek. Was done landscaping survey, what was focused to possibilities of reducing amount of wastes, to quality of recycling waste and to availability of collecting points in the company areal. To evalaution of current dondition of recycling wastes in the company WITTE Nejdek was done survey with employees, what was focused on awareness and knowledge employees about recycling waste in WITTE Nejdek. In these are proposed concrete measures, what could improve recycling of waste and make changes helping to reduce amount of waste. Proposals are suitable not only in terms of prevention to waste production, but economically too.
|
|
Small sacral buildings in the area Macha region
Sobotková, Lenka ; Zilvar, Josef (advisor) ; Tomáš, Tomáš (referee)
Abstract
The thesis maps and identifies a small religious monuments in the countryside and smaller settlements in the cadastral area municipalities Association Macha, which is located in the southwestern part of the Liberec region and its southern edge, which is Kokorin, extends into the Central Region. These small structures of sacred significance were set up at intersections of roads, trade routes, near Wells, but as expressions of gratitude and remembrance to joyful, significant and tragic event. Each of these small sacred building affects perception of a person's environment, enriching area villages and landscapes, along with accompanying greenery which acted as a refuge on the road, landmark or feature lightning form a common artistic and traditional value. His mission lost partially or completely inappropriate transfer.
The main benefit and purpose of this work is to determine the current state of these monuments in the area, and create a detailed catalog, serving as a source of information for tourism, regional development, such as integration into existing and also into emerging hiking, biking and nature trails, but also as the basis for a partial analysis in the evaluation of the landscape, the creation of the zoning plan, the draft plan during land consolidation or the needs of a particular community.
The catalog is compiled on the basis of professional and regional literature, detailed field survey, including cadastral territory of the municipalities that are part of the voluntary association of municipalities Macha maps and testimonies of some residents is compiled catalog of small sacred buildings. Buildings are photographically documented and described both in terms of the status quo, and in terms of landscape significance here is the location of the building indicating the GPS coordinates and plotting the current actual map of the selected area.
|
|
Research of windbreaks in a chosen cadastral area from the point of view of woody plants species´ representation and their health condition
Knoblochová, Martina ; Janeček, Miloslav (advisor) ; David, David (referee)
This thesis evaluates the current state of selected wind breaking types, looking at their species composition, condition and functionality.
One of the most efficient precaution against wind erosion are wind breaking swathes of woodland, windbreakers. These woodlands protect adjoining land against wind erosion of topsoil, blowing away snow cover as well as lowering water evaporation. The right position in the landscape, species composition and a good state are important for windbreakers to fulfil the above mentioned function. In the Czech Republic, 29% of farmland is badly affected by wind erosion. The most affected areas are situated in the South Moravian region. For the purpose of this dissertation work, two areas were chosen. Both of them are situated in the district of Znojmo, where the highest level of wind erosion is found. Area 1 lies in the districts of Břežany, Čejkovice and Božice. Area 2 lies in the districts of Velký Karlov, Hrádek and Křídlůvky. In order to investigate suitability of current windbreakers, the state of potential natural vegetation, climate, geological, paedological and hydrological conditions will be investigated in both of these areas.
For the assessment of the effect of windbreakers, methodology after Podhrázská (2008) was used. This methodology allows assessment of these trees as individual linear elements, but also as a part of a network of these elements. The assessed criteria will be, for example: position in the landscape, species composition, age, functional type, height, width and the number of rows. Furthermore, horizontal and vertical parameters will also be investigated. For the evaluation of the functionality of the network of elements, it is also crucial to look at the tree orientation, their position in relation to the terrain and the direction of the wind. Moreover, the distance between individual woodlands also plays a significant role. The effect of windbreakers on the landscape will be further assessed using classification system after Kolařík (2005).
Over the course of this project, 22 windbreakers were selected for evaluating their functionality and a proposal for their re-establishment in the future was suggested.
|
guest ::
