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Význam aditivních látek ve výživě drůbeže
STUNOVÁ, Tereza
Bachelor thesis is about differences in morphology and physiology of poultry as affected by nutrition, with special focus on effects of nutritional additives. The thesis focuses mainly on a group of zootechnical additives. Description of these additives and their effect on poultry is discussed.
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Návrh doplňkové krmné směsi pro zakrslé králíky
Halouzková, Soňa
This thesis deals with the composition of supplementary feed mixture for adult dwarf rabbits with regard to their appetite preferences and nutritional requirements. It also deals with the phytogenic additives, their addition to the supplementary feed mixture and the assessment of their effect on the health of rabbits. The experiment was divided into three parts. During the first part different groups of feeds were presented to rabbits and their consumption, preferences and food behaviour were monitored. From cereals, the highest consumption in barley and maize has been statistically proven (P<0.05), on the contrary the lowest consumption was in buckwheat. The highest intake of linseed and milk thistle seed was obtained from oilseeds. The significant difference (P<0.05) was between linseed and sunflower seed intake. There was no significant difference (P> 0.05) in soya and pea intake. In the dehydrated fruit and vegetables category, the dehydrated beetroot had evident the lowest consumption (P <0.05). In the group of hot air dried feeds and expellers, the highest attractiveness (P <0.05) of hempseed cake and the lowest attractiveness of granulated sugar beet pulp has been proven. The significantly highest consumption (P <0.05) of the leaves of plantain (Plantago lanceolata) and dandelion (Taraxacum officinale) and dandelion and daisy flowers (Belis perennis) was found from phytogenic additives. In the second part of the experiment breeding dwarf rabbits were fed a supplementary feed mixture for 31 days where test weighting, condition and health control were performed. There was no change in body weight, condition, or animal health during the test. The last part of the experiment was devoted to assessing the effect of selected phytogenic additives on rabbit health. Domestic rabbits were fed a feed mixture containing 2.5 % of phytogenic additives for 3 weeks. Blood was collected on the biochemical analysis before (Control) and after the test (Experiment). The investigated parameters were chosen for the assessment of liver profile, renal function and nitrogen and carbohydrate metabolism. No difference (P> 0.05) between Control and Experiment was found in the results of most of the investigated parameters.
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Možnosti využití doplňkových látek ve výživě zvířat
NOVOTNÁ, Lucie
This thesis deals with utilization additives in animal nutrition. The work is focused on the importance and necessity to achieve healthy development growth of livestock with the environmental impact and safety for humans. There is described the characterization of the individual substances, their effect and the correct dosage.
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Vliv fytogenního krmného aditiva na užitkové parametry u drůbeže
HOMOLKOVÁ, Eva
The aim of this diploma thesis was to verify the effectiveness of phytogenic additives in utility parameters of poultry.The experimental study was conducted at the research station of the company Delacon Research Station PNRC s.r.o. in Stošíkovice on Louce.The experiment was carried out with little roosters hybrids ROSS 308. The fattening took 42 days and the three-phase feeding BR 1, BR 2 BR 3 was applied. Phytogenic additives were added to all kinds of feed mixtures. Given that this is a primary research of a private company, it is not known the exact structure of the used additives, which the company protects as its know-how. Additives were based on saponins in combination with other substances of phytogenic origin. During the process of fattening, the utility parameters of the experimental groups were monitored, which were then compared to the control group.Experimental groups showed a positive effect in several utility parameters at particular periods, statistically conclusive positive results were obtained only in the feed conversion in one experimental group during the 29th - 42nd day of fattening and in three experimental groups in whole fattening evaluation from 1. - 42nd day.
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