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Možnosti ovlivnění emise amoniaku v chovech zvířat
Škarková, Miroslava
Ammonia production associated with animal husbandry is important not only in terms of microclimate of stables, but also in terms of its impact on the environment and buildings located near the farms. Different approaches are applied to limit the production of ammonia and the negative effects on animals. The final effect of the measures involve a number of factors, which requires special technological equipment. It has been designed process for evaluating the binding ability of ammonia in clay minerals. It was detected that clay minerals with a smaller fraction had quicker efficiency compared to larger fractions. However a smaller fraction is associated with a higher dust, which is becoming a limiting factor. Application of biotechnological preparations in stables for fattening chickens showed that low pressure nebulizer device can be used not only for adjusting the relative humidity of air and for the application of biological products, which reduce the amount of ammonia in the stable. High or low pressure spraying have been tested in pig and poultry. The nebulizer device may be a tool to reduce the temperature in the barn. The dose and concentration of the specimen as well as the interval of application of specimen and placement of the nozzles in the stable area are important for the elimination of ammonia. The system can be recommended to well-insulated stables, where the short term reduction of ammonia in the stable air may be expected. Based on the results of measuring the effectiveness of biological air washer in pigs, the rise time of the device depends on active microorganisms on surfaces and can take depending on the microclimate parameters more than 3 months. Biological washing of air is sensitive to environmental conditions, which should be constant. When changing the water intended for circulation of air in the machine and ensure its effectiveness, it is recommended to change only one third, compared to one-half that is recommended by the manufacturer. The biological air washer helps to significantly improve air quality in the stables. Moreover, the loss of nitrogen is eliminated.
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Optimization of stable microclimate management
ŠIMKOVÁ, Anna
The aim of study was to determine how correlate together the basic components of the microclimate and what is their weight in creating of a suitable stable environment and at the same time participate in the research partial results for the creation of an automated system of evaluation and quality control of microclimate in the stable and to exclude subjective operator error, mitigate the impacts of extreme climatic fluctuations and contribute to the improvement of animal welfare, which should then be reflected in increased quantity and quality of production and better health.
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Optimization of microclimate parameters in dairy farms, while reducing the energy consumption of selected technological systems
Češpiva, Miroslav ; Pecen, Josef (advisor) ; Ján, Ján (referee)
Thesis is focused on the measurement and evaluation of microclimate parameters in barns for dairy farming and the determination of the energy consumptions of selected technologies in these barns. The aim of this work was to design and eventually to implement adjustments in order to improve the parameters of cowshed microclimate and reducing the energy consumption of selected technologies in depends on results of the measurements. Three structurally different cowsheds with different slurry clearing technologies were selected for monitoring. I focused on the measurement of temperature and relative humidity in relation to temperature- humidity index and its impact on heat stress on dairy cows. I measured airflow in the cowsheds and I determinate concentrations and emissions of ammonia and methane in the cowsheds in different seasons. I monitored light intensity in the cowsheds and I determined the dependence of building solutions on the use of outdoor light to illuminate the interior of the barns. The energy consumption of the lighting system depending on the season and the consumption of additional fans on the air temperature were studied.
On the bases of results of the experimental part I designed and implemented lighting system, controlled by light intensity in a cowshed and energy-saving ventilation in the cowshed - type K105. I suggested a system of continuously monitoring of climatic parameters in the cowshed with immediate calculation of temperature- humidity index.
Measurements have shown the dependence of gases concentrations on the way of slurry clearing technologies. The building solutions of cowsheds and type of ventilation proved a significant influence on the temperature- humidity index during the summer.
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Zhodnocení vybrané BAT techniky ve vybraném provozu s chovem drůbeže a zhodnocení jejich ekonomických dopadů
KUBÁŇ, Svatopluk
The diploma thesis examines the production of gas emmissions (especially ammonia) arising from chicken farming. It focuses on its decrease and it also compares the gas concentrations while using electrolytic-oxydizing water. The work observes the expensiveness of the electrolyte water and compares the Air Emission Limit with the EU directivity. The measuring itself took place in a farm in Čekanice near Tábor. Air emission limit of ammonia has turned out to be 0,013 [kg NH3.ks-1.rok-1], more precisely 0,017 [kg NH3.ks-1.rok-1] for a hall without electrolyte-oxydizing water.
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Vliv mikroklimatu ve stáji na užitkovost prasnic
Křivová, Štěpánka
Bachelor thesis deals with the characterization of reproductive properties of sows and the factors that influence them. Further it is focused on the description of the individual indicators of stable microclimate and its effect on fertility and milk production of sows. Part of thesis is also characteristic of selected reproductive diseases related to zoohygiene levels and stable microclimate. In conclusion there are proposed measures to optimize the stable microclimate for sows breeding.
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Measurment of emission in selected pig breeding farm and assesment of their economical impact.
POLENSKÝ, Jakub
The aim of Bachelor Thesis was the evaluation of effects of electrolysed oxidising water (EOW), produced by the device Envirolyte, on the concentration of ammonia and other gases (methane, carbon dioxide, hydrogen sulphide and nitrous oxide) in microclimate of a pig stable. EOW has been said to improve sanitary conditions within stables (cleaning and disinfection, disease control). Nevertheless, as results from the measurements carried out in the pig stable of co-operative farm at Starosedlský Hrádek, concentrations of five determined gases were not affected.
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