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Vliv různých dávek a forem minerálních látek v dietě brojlerů na biochemický profil krve
Zającová, Karolína
This diploma thesis deals with study of influence of addition of different doses, forms of calcium and zinc into feed mixtures for broiler chickens. The aim was to find out how different doses or forms of these minerals affect the concentration of calcium and zinc in the blood of chickens. Ross 308 broiler chickens were used in the experiments. Calcium and zinc were fed to the feed mixture in the form of calcium carbonate, zinc oxide or organically bound zinc. The basal diet of the control group contained 2 g of calcium. Different doses of calcium carbonate (6 g, 9 g, 15 g / kg of feed mixture) were fed to three groups. Four groups were fed with the addition of zinc oxide at doses of 20 mg, 40 mg, 120 mg and 180 mg / kg of the feed mixture. In the next experiment, zinc was fed in various forms and different amounts to compare the effect of feeding organically bound zinc. At the end of the experiment, blood samples were taken during the slaughter and the concentrations of the studied elements were determined. Statistically significant differences in blood calcium levels have been demonstrated between the control group (containing Ca in the feed mixture 2 g / kg) and the groups of animals that we increased calcium (to 6 to 15 g / kg of compound feed). However, experimental groups did not have any significant differences. It has been found that increasing amounts of Ca in the feed have a negative effect on the concentration of magnesium in the blood. In the zinc subsidy experiment, we found conclusive differences between the control group and the experimental groups. At lower doses of Ca (less than 9 g Ca / kg) and Zn (less than 180 g Zn / kg) in the feed mixture, a proven correlation between the concentration of Ca and Zn in the feed and blood was demonstrated.
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Metabolismus mikroprvků ve vztahu matka - mládě u přežvýkavců
Zającová, Karolína
The main aim of my bachelor thesis, was execute literary recherche about the most famous trace elements: selenium, zinc, copper and manganese, which are the most important trace elements in metabolism and also in relationship between mothers and kids. In my bachelor thesis I described their functions in many metabolic processes. Also the deficiency and redundancy was described in this topic. The second part of this bachelor thesis, I described differences between concentration in mother´s and kid´s blood in ruminants and tried to propose the right diagnostic changes, for evaluate the status of these elements in kid´s blood system.
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