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Principles of nutrition of fallow deer (dama dama)
FRIEDBERGEROVÁ, Eliška
My bachelor thesis deals with literary sources describing the fallow deer (dama dama), their biology, ethology, feeding and the nutrients necessary for this species. It also focuses on the fallow deer farming, its history and requirements, including the legislation. The thesis presents a draft of a feeding concept for farmed fallow deer. This concept is based on an experiment, which has taken place at a private farm Mnich near Kardašova Řečice in collaboration with Výzkumný ústav živočišné výroby Praha Uhříněves. The results of the experiment have become the ground for comparison and the constitution of the most efficient feed intake.
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Influence of exothermic sleaves on solidification of aluminium alloys
Zajíček, Roman ; Krutiš, Vladimír (referee) ; Roučka, Jaromír (advisor)
The master’s thesis deals with the influence of the exothermic risers on the solidification of aluminum alloys. The work is divided into three parts. The first theoretical part describes the differences of properties of cast aluminum alloys compared to other based metals, especially iron alloys. It also describes the methodology of designing risers, composition of exothermic mixtures and finally gives an overview on the simulation programs on the market, their application in foundry practice and briefly explains how to define the material in the simulation program ProCAST. The second part describes the experimental measurement of the solidification time of aluminum alloy AlSi7Mg0,3 in the sand form with exothermic riser. The final section describes the simulation of experimental measurements. Further with help of simulation software it is tried to find the general principles that have an influence on feed module rate of exothermic riser.
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Drilling Unite
Glembek, Jan ; Budač, Miroslav (referee) ; Špička, Jiří (advisor)
The goal of this work is a design of a hydraulic drilling unit and a manipulator for the PSU 9000 machine. The introduction describes the use of underground mining drilling machines and mentions some of the current solutions. The second part contains the design and calculations of individual components. In the final part, the finite-element method is used for calculation of the bearing parts of the construction.
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Thermal insulation and backfilling as a way to save metal and anergy in foundry
Kos, Jan ; Sekanina, Bohumil (referee) ; Kavička, František (advisor)
Types were summarized, principles and thermo-physical properties of thermal insulation and backfilling and their use in the foundry industry to provide directionally solidified castings and then their quality. It summarized the need for numerical simulation of thermal field system casting-form (core)-around the control and prediction of directional solidification. They are some commercial software using different models of solidification. As an example, using one of the models describe the procedure as a pre calculation to decide which of two possible isolation of the riser will be more effective.
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Impact of selected factors on laying hens and egg quality.
ZDICHYNEC, Martin
In accordance with the specification of the thesis I developed a methodology target program and I watched it four identical halls, which have different technology housed laying hens. In this thesis are analyzed indicators lay in the selected poultry company in the South Bohemia for the impact of housing hens, their nutrition and feeding. In the selected company enterprise on the one hand technology is used enriched cages EUROVENT - EU Big Dutchman and on the one hand technology aviary housing system used LIBRA with the Italian company of SKA.
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Evaluation of cattle rearing on the family farm
VRHEL, Marek
This bachelor thesis is focused on the evaluation of production and reproductive performances of the Jan Vrhel family farm herd in the period 2007 - 2013 and then compared with yearbooks tracking periods with the herds of businesses with established KU (performance testing). The basic economic fundamentals of business profitability were also evaluated , which indicate that the business is sustainable only by contributing grants. Technological methods of rearing calves and heifers were evaluated as well and point to a lower level of breeding and reproductive labor. According to the prescribed diet and analysis of compound feed, it possible to evaluate the status and quality of feeding and nutrition, which is derived from high-quality farm produced feed. Overall evaluation of feeding and nutrition of the cattle in the family business Jan Vrhel, is good. Milk yield was evaluated according to the amount of sold milk and the state of the dairy cows. The evaluation showed that the family business dairy cows are slightly below the average dairy herd with established KU (performance testing)in Czech Republic in the period 2007 -2013. Overall, the Jan Vrhel farm is below the average herd in the Czech Republic with established KU, but due to good investment and improving reproductive and breeding work would be possible to achieve optimal values of all the quality indicators.
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Feeding enrichment in selected Felids
PINTOVÁ, Radka
Environmental enrichment and welfare are important elements for animals in captivity. This study starts with general introduction in breeding animals in zoos and environmental enrichment for important taxonomic groups. The practical part is following with a research on effect of food on frequency of stereotypic behavior. The theoretical assumption says that the different time of eating the food leads to different behavior. Long-term observation was done to confirm the theory. Eight animals belonging in three species were observed in time of feeding, eight types of food were given. The behavior at the time of feeding and after was evaluated by ethogram. General trends in time used for feeding were confirmed (the shortest time for chicken and opposite the longest for head of a goat). The evaluation of stereotypic behavior mainly showed the individuality of each animal. However, servals exhibit most of this pattern. The relationship between stereotypes and time of feeding was insignificant. Generally most of the results were statistically insignificant because of low number of repetition in the dataset.
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The effect of water temperature on early ontogeny in African catfish (Clarias gariepinus)during post - embryonic development
FRANTA, Pavel
This theses is made up from two methodologically identical experiments, which involved observing the starting time of key sections of early ontogeny (H95, S95, Re95) at a temperature of 24°C. The experiments used 29 groups of eleuterembryoes/larvae which were fed for 30 days, but timing of initial feeding of exogenous food was different between the groups. The first group began initial feeding at the age 72 hPF and every other group was fed for the first time 6 hours later than the previous group (the last group was fed at the first time at the age 240 hPF). The group, which wasn´t fed exogenous food during the experiment, served as control. The effect of timing of start feeding on morphometric and gravimetric characteristics, size distribution, survival and rate of cannibalism in eleuterembryoes/larvae was examined. A temperature of 24 °C was determined the hatching time of eleuterembryoes after 36, resp. 33 hours (1st, respectively 2nd experiment) from fertilization. The start of intake of exogenous food (S95) was determined at age 123 hPF, yolk sac absorption at age 150 hPF during the 1st experiment. At the 2nd experiment the start of intake exogenous food was determined at age 115 hPF and yolk sac absorption at age 161 hPF. During the interval from H95 to S95 records showed an increased rate of growth, especially the caudal part of the body. At the age from S95 to Re95, growth of unfed larvae was stopped (first effect of starvation). Almost all monitored parametres were significantly affected (P < 0,01) by timing of start feeding except for rate of cannibalism. While the percentage representation of large sized and medium sized individuals (the potential cannibals) was decreased with increasing the time of start feeding, the rate of cannibalism wasn´t changed. However the number of small sized individuals was increased with increasing the time of start feeding. The study of the African catfish confirmed the negative impact on survival, which is caused by a delay in initial feeding. Unlike survival, with morphometric parametres there wasn´t observed a significant decrease in values, provide the larvae was first fed before reaching the age of 216 hPF. It was also found that almost 100 % of the individuals in the control (unfed) group died at age 377 hPF. However the first indications of increasing mortality was observed in age 283 hPF. Based on the above information, the PNR (point of no return) was reached approximately at the age of 270 hPF in African catfish
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Influence of selected factors on reproduction of fish \kur{Betta splendens}
HOMOLKA, Václav
The Siamese fighting fish (Betta splendens; order Perciformes, family Osphronemidae) is a fish occurring in the area of south east Asia. Above branchial organ (so-called labyrinth) allowes it to breath an air oxygen. It is a territorial sort of fish, males are brawling to each other. In a breeding fish take alive or frozen food and also artificial feed. The fish is bubblenest, spawns are put into a foam nest, built by a male, that takes care about the posterity for some time. The task of the work was to verify the influence of chosen feeds sorts and concentration of humic substances in water for a success in reproduction of Betta splendens fish. The experiment was performed in an aquarium room at institute of biological disciplines AF USB. The experimental work started on 12. 12. 2011 and was finished on 25. 2. 2013. Tested fish were by particular couples put into tanks, at which there were breeding afterwards. It was evaluated the frequency of spawns and the number of embryos. From the result of the work there is obvious that the feeding by a beef heart was preferable for fish´s fertility in a monitored time area about approximatelly 75% in comparison to feeding by a chicken breasts muscles. The presence, or more precisely the concentration of humic substances obviously did not affected the fertility. All fish´s groups embodied higher grade of fertility at the beginning of the monitored time area (probably higher fertility at younger - more vital fish). Siamese fighting fish is very demanded fish at aquarists, this is why is very important to evaluate certain parameters of breeding and rearing of these fish.
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