The thesis titled Evaluation taxa range of the genus Origanum L. in terms of organic and conventional production system deals with the growing influence of the type for its contents Origanum vulgare L. - essential oil content and total antioxidant activity. Literary section describes the botanical description of the genus, growing practices in ecological and conventional conditions, content and substance use. The practical part of the individual plant specimens in terms of morphological characters, selected phenological characteristics, essential oil content and total antioxidant activity.

The theme of this thesis is "Radiocesium levels in selected game". The aim of the work was to use gammaspectrometric analysis and carry out a measurement of 137Cs content in meat samples of selected game from several locations in the Czech Republic. Thirty samples of muscles from 15 wild pigs were analysed. Samples were taken from 6 locations in Czech Republic. Measurement of the samples was performed in different geometries: Marinelli beakers (500 ml), PE bottles (100 ml) and Petri dishes (10ml). The aim was to compare measured 137Cs activities with published data and within particular locations, compare 137Cs activities in different geometries and assess the importance of radionuclides in the meat from the perspective of food safety. The results showed that in areas of larger fallout after the Chernobyl accident 137Cs in wild pig meat is still possible to measure over limit. Comparing different measurement geometries was found that the Petri dish (10 ml meat sample) can be used as an alternative and acceptable geometry.

In the experiment, we observed how it affects feeding colored wheat grains with purple color on the antioxidant activity in the liver and in the blood of rats. For the experiment, we used 64 male rats Wistar albino four to six weeks. The experiment was performed four weeks. Experimental group (n=32) rats fed the only color wheat Konini. Purple wheat Konini (14.01 mg/g of anthocyanins). The control group (n=32) are fed conventional wheat Bohemia mixed with gluten to supplement the crude protein content as Konina (16%). During the experiment, we looked at three day intervals additions and weighed daily feed consumption. Antioxidant activity was measured by methods DPPH, FR, FRAP and ABTS. Results of measurement of antioxidant activity in the liver appeared inconclusive for all the methods. Only the results of the FR and FRAP with blood appeared conclusive. At control FR mg/l 297,35+-23,94 and Konini 215,57+-12.16 .FRAP mg/l control 28,78+-1,35 and 23.86 +-1.28 Konin. Other methods for blood came out inconclusive as well as in the liver. We found that liver weight in rats fed wheat Konin was 7% lower than in control rats. The results were processed using a statistical method ANOVA Scheffe test.

The aim of this diploma thesis The effect of stable microclimate on qualitative and quantitative parameters of ejaculates of breeding bulls, where the effect of stable envi-ronment and age on the volume, concentration, activity and changes in morphology of sperm in ejaculates of bulls was evaluated. In the period from 1st March to 31st August 2014, there were done 154 collections of semen from nine bulls of Czech Pied cattle lairaged at the insemination center of bulls operated by a breeder's cooperative Impuls in Bohdalec. Immediately after the collections macroscopic and microscopic examinations have been performed for all samples, which included determining the volume, con-centration and activity of sperm. After evaluation of morphological parameters of bovi-ne sperm the percentage of morphologically normal sperm and pathomorphological da-maged sperm were evaluated. There were observed changes on the head, acrosome, connecting part and flagellum. Our results show that the biggest effect on the qualitative and quantitative parameters of semen for breeding bulls has age, the temperature along with moisture, where the greatest differences in results were found for the extreme va-lues. A value of temperature - humidity index (THI) has negligable effect, where there were the smallest differences in the obtained samples.

This diploma thesis was focused on comparison of movement activity of dairy cows of Czech Fleckvieh Breed and Holstein Breed. Three herds of Czech Fleckvieh Breed and three herds of Holstein Breed were chosen on six farms. An observation of movement activity of dairy cows took place using pedometers during one year. Gained data was processed afterwards and then the comparison of breed influence on their movement activity was made. Possible effect of season on movement activity and effect of movement activity on efficiency was taken into account. The observation did not prove any difference of moving activity between observed breeds.

High level of agricultural products processing and especially better storage of products currently represent one of the hottest topics. At the same time, there is a lot of effort to grow crops without chemical substances. Root vegetables, which are consumed a lot, are prone to many harmful and damaging influences. There are several risk factors, including a long vegetation period. This creates an opportunity to use natural substances, in particular essential oils. Their effects are used in various different fields because they are safe for the environment as well as for the human health and the area of food commodities treatment. This study focuses on antibacterial activity testing of several essential oils: satureja, cinnamon, clove, thyme and oregano. Carrot, garden parsley and celery were chosen as representatives of root vegetables. The antibacterial activity was measured by the broth microdilution method. Even though the vegetables were inoculated with pathogenic bacteria, putrefaction did not develop in the specific places. Therefore an isolate from the parsley and the celery was then used to identify several other microorganisms by the MALDI TOF mass spectrometry. Consequently, the minimum inhibitory concentration of essential oils was again tested against these bacteria in in vitro conditions. There was a demonstrable positive result: the most frequent minimum inhibitory concentration of the cinnamon essential oil was 0.128 mg/ml. At this level the essential oil inhibited eight out of the seventeen tested microorganisms. The other tested essential oils showed some inhibition activity at least against one bacterium in in vitro conditions.

This thesis deals with the accessibility of leisure activities for youth. Leisure activities are focused on the particular locality which is the town of Jablonec nad Nisou. Furthermore, this outlines the problems which the providers and staff of these institutions encounter. These are mainly a lack of funds for their operation, especially for private entrepreneurs, but also an excess of demand over supply. Nevertheless, this city offers many facilities where children and young people can spend their leisure time. The above-mentioned issue occurs primarily at art schools and youth centers because these can afford to choose lower school fees and therefore their services are accessible to a wider public. Apart from school lessons, the youth may attend art schools, leisure centers and low threshold facilities which are open to everybody and parents also do not have to pay school fees or pay the private entities that are trying to develop the physical as well as the mental aspects of the child. The practical part of this thesis takes a closer look to those providers of leisure time. On the contrary the financing of those activities is defined in the theoretical part where also the legislative basis is slightly outlined. The conclusion includes the evaluation of obtained results.

Childhood overweight and obesity is a present issue not only in the Czech Republic, but worldwide. The main objective of this thesis was to assess overweight and obesity in children of primary school age in towns and in villages in the Central Bohemian Region and to focus on their alimentation habits and physical activity. The thesis consists of two parts. The first theoretical part describes the characteristics of primary school age, introduction to the topic, epidemiology, causes of the origin, types of obesity, diagnostics, problems of obese children, nutrition of children and adolescents and their alimentation habits, prevention, medical treatment, specific programs for the prevention and treatment of childhood overweight and obesity and an overview of the myths about childhood obesity. The second practical part of the thesis includes questionnaire study implemented within the 4th grade of chosen urban and non-urban schools in the Central Bohemian Region and semi-structured interview with mother of a child suffering from overweight since early age. The survey included 155 pupils of the 4th grade from two urban and five non-urban schools of the Central Bohemian Region. The results of the questionnaire study proved that 23 % of urban and 20 % of non-urban pupils suffer from overweight and obesity. An important factor is their different lifestyle. Non-urban children spend their leisure time in a passive way, they prefer playing PC games to physical activities, attend less extra sport classes and consume more sweets than urban children. More urban pupils consume three to four meals on a daily basis in contrast with non-urban pupils who tend to consume five to six portions. Most prefer healthy food to unhealthy food and tend to eat mainly czech dishes at home. 90% of the questioned children expressed positive attitude to sport. More than half of the children suffering from overweight and obesity do not practice any sport or physical activities sufficiently. Due to the importance of regular alimentation and consumption of breakfast and snacks, it is a positive finding that three quarters of the children have breakfast regularly and bring home-made snacks to school. The semi-structured interview with mother of an overweight child proved that overweight is not caused by overeating and by a passive lifestyle but also by genetic predisposition. In the conclusion, the author presents the outcome of the work and a general primary prevention at family level, school level and community level.

Bats are important part of diversity of mammal fauna and they are used as indicators of environment quality. Many bat species, even those regarded as forest dwellings, use human settlements as a roosts and shelters. The bat community structure and activity of particular species will be studied at different places in order to determine the influence of presence of human settlements on forest bats. Detectoring and recording of bat echolocation calls will be used as an effective method enabling to monitor the presence and activity of particular bat species in different habitats.

The main aim of this thesis was identify nutritional status, especially the incidence of overweight and obesity among children aged 10 - 15 years and evaluate the qualitative and quantitative aspects of eating, eating habits and regularity of eating in relationship to physical parameters. This research deals with the frequency and type of physical activity, which is also an integral part of a healthy lifestyle. The research was conducted at children´s department in Klaudián´s hospital in Mladá Boleslav, in the presence of person, who was carried out this research. Data collection was carried out by filling questionnaires and real measurements of physical parameters or using data measured in the doctor´s office. Obtained anthropometric data were analyzed by using percentile graphs. Questions regarding eating and physical activities were evaluated separately. It was found that 16,25 % of the 80 examined individuals were overweight and 22,50 % obese. It was found that the BMI and subsequent inclusion in the percentile graphs correlates well with the values of the waist circumference.The link between diet and the prevalence of overweight or obesity was not proven. The most commonly consumed inappropriate nutrition component are sweetened beverage. Half of individuals do physical activity at least 3 times a week. H1 hypothesis, which assumed the prevalence of obesity among examined individuals greater than 13 % was confirmed. It also was confirmed hypothesis H3, which was supposed to sweetened drinks daily drinking less than one third of respondents. Other hypotheses H2 and H4 were rejected.The research confirmed the current trend of increasing prevalence of overweight and obesity. At the same time, there was found deficiency in the quality of consumed food and the frequency of physical activity. Nutrition and principles of healthy eating are not the only one cause of this problem, although they have large share on development of overweight and obesity.