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Možnosti úpravy bosých kopyt u koní
HLÍZOVÁ, Rozálie
This bachelor's thesis is focused on the possibility of modifying bare horse hooves. The aim of the work was to summarize the possibilities of modifying the bare hooves of horses using research. For practice in horse breeding, it is important to know what the hoof correction options are and how the individual methods differ from each other. In the first part of the thesis, research was carried out on the topic of the possibility of modifying the bare hooves of horses. Four basic methods were described here, such as pasture (horseshoe) trim, Dr. Strasser's method, HGM trim and mustang trim (natural trim). Furthermore, the possibilities of using the mustang trim in practice were written down, with a focus on a detailed description of the treatment procedures for sick and pathological hooves. Specifically, these are irregularities of the horse's limbs, tight hooves, hoof rot, laminitis, podotrochloosis and cracks in the hooves. In the second part was the methodology for measuring hooves. When 7 horses and 3 ponies of different ages and breeds were involved in the measurement. Horses are found in a variety of conditions. By measuring, the shape of the hoof can be objectively evaluated. Data on the size of the pectoral and pelvic hooves were compared with each other using descriptive statistics. It was observed that in ponies, the front hooves were 12 % longer than they were wider, which is less compared to the rear hooves, where the length was 27 % greater than the width. Similar results were reached in the case of large horses, where the length was 14 % greater than the width in the front hooves and by 22 % in the hind hooves. This confirms the more oval shape of the rear hooves compared to the front ones. Differences between the maximum and minimum value indicate the effect of breed on hoof size. From the results of measuring the tread points, shape deviations in the size of the hoof ball can be evaluated. The created methodology can be used for long-term observation of changes in the shape of the hooves when adjusting the mustang trim. Horse breeders have the opportunity to influence the horse's performance and health by choosing a suitable and regular trim.
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Calibration of SIMS method by implantation profiles
Janák, Marcel ; Průša, Stanislav (referee) ; Bábor, Petr (advisor)
This bachelor thesis is concerned with a quantitative analysis of the dopant (C, H, Mg, O) distribution in MOCVD-grown AlGaN HEMTs by TOF.SIMS 5 instrument with cesium and oxygen sputtering. The main reason for the development of RSF SIMS measurement quantification method is a hardly predictable phenomenon of preferential sputtering and matrix effect. Calibration samples, prepared by ion implantation technique into homogeneous and periodic III-nitride AlN, GaN structures, are reproduced by an ion-atom interaction program TRIM. A part of this work is likewise a quantification of AlGaN matrix.
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Calibration of SIMS method by implantation profiles
Janák, Marcel ; Průša, Stanislav (referee) ; Bábor, Petr (advisor)
This bachelor thesis is concerned with a quantitative analysis of the dopant (C, H, Mg, O) distribution in MOCVD-grown AlGaN HEMTs by TOF.SIMS 5 instrument with cesium and oxygen sputtering. The main reason for the development of RSF SIMS measurement quantification method is a hardly predictable phenomenon of preferential sputtering and matrix effect. Calibration samples, prepared by ion implantation technique into homogeneous and periodic III-nitride AlN, GaN structures, are reproduced by an ion-atom interaction program TRIM. A part of this work is likewise a quantification of AlGaN matrix.
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Transektový monitoring motýlů České republiky: Výsledky z prvních sedmi let
KOLLROSS, Jan
The thesis presents data from butterfly transects monitoring, carried out for 7 years on 36 transects established both within nature reserves and unprotected landscapes throughout the Czech Republic and walked three times a month between April and September. Only seven transects were monitored for the whole monitoring period. There were 192 771 individual butterfly records on 127 species of butterflies and burnet moths, i.e. 76.5% of the Czech fauna of the targeted groups). Data on their abundances are for the first time available for the Czech Republic. The distribution of individual species abundances approximated a lognormal model. The abundant species were generalists of non-wooded habitats, which prosper in the intensively managed landscapes of the Czech Republic. Trends of abundance, determined by the TRIM program, were estimable for 92 species. Over the monitored period, the relative abundance of nine species significantly decreased, while those of of seven species significantly increases. The remaining 76 did not display unequivocal trends, but still, 17 are likely increasing and 29 likely decreasing. Comparing the trends with the life history and bioclimatic traits of the butterflies showed that species whose abundance did not change possess traits typical for generalist butterflies (mobile species, overwintering in later life stages, longer flight period etc.), while decreases were more common among thermophilic species. Splitting the analyses for data originating from reserve vs. unprotected areas suggested that mesophilic species and species of more advanced successional stages prosper outside of reserves, whereas thermophilic species tend to decline there, and that an opposite pattern applies to reserves. I discuss recommendations for future of the monitoring Czech butterfly monitoring scheme.
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