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Stravitelnost aminokyselin u kuřat chovaných na maso
Foltyn, Marian
The aim of the work was to determine the effect of substitution of soybean meal (SBM) in the grower diets for broilers with other protein feeds of plant origine. It was study the influence of substitution on growth performance and feed conversion ratio, digestibility of amino acids, activity of digestive enzymes and morphology of small intestine. Protein feeds were chosen raw full fat soybean (RFFSB), extruded full fat soybean (EFFSB), corn DDGS, rapeseed (RS) and rapeseed meal (RSM). Based on our observation it can be concluded, that inclusion of RFFSB up to 8 % level, EFFSB up to 12 % level, DDGS up to 18 % level and RS up to 12 % level did not statistically significantly (P>0.05) negatively affect the yields in fed broilers. Feeding RFFSB and EFFSB influenced (P>0.05) the ileus morphology and activity of digestive enzymes. On the basis of digestibility coefficients, the most appropriate proteinous feed for broilers was SBM, which was comparable to EFFSB.
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Optimalizace výživy a krmení v chovu dojeného skotu
ŠENKYPL, Petr
This master thesis focuses on factors affecting the quality of the diet in dairy cows and its relation with milk production. On the analysed farm breeding Holstein cattle, the feed rations are evaluated in terms of diet composition and optimal supply of energy and nutrients for milk production. The diet composition during the followed period and its optimisation, diet analyses and metabolic tests of the cattle are evaluated in this work.
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Základní aspekty výživy dojnic v průběhu laktace
KAZDA, Miloslav
This bachelor's thesis deals with the nutrition of dairy cows during lactation. There is characterized feeding of dairy cows in the whole meantime. Work contains of recommended feed rations with optimum amount nutrients during phases of lactacion. A brief description is also given to the nutrients, feeds and diseases caused by incorrect nutrition.
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Posouzení využití míchacích krmných vozů na farmách pro chov skotu
PŘIBYL, Radek
The theoretical part of the diploma thesis entitled "Assessment of the use of mixed feed wagons on cattle farms" deals with the development of feed feeding and the use of new trends in their feeding. In the diploma thesis we also deal with the basic technology of production of bulk and core feeds, including modern technology for their distribution, characteristics and method of loading individual components of feed rations. The next part of the diploma is focused on the selection of self-propelled and towed mixer feed wagons, evaluation of the operating time and vo-lume of the feed fed, finding out the financial costs of mixer feed wagons and their operation. Evaluation of the use of monitored feed mixers in practice.
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Determination of diquat and paraquat in agricultural commodities
Prchal, Miroslav ; Hrbek,, Vojtěch (referee) ; Petra,, Kosubová (advisor)
This diploma thesis focuses on polar pesticides and their analysis in agricultural commodities. One of the aims was establishing of the method for quantitative determination of diquat and paraquat using liquid chromatography with tandem mass spectrometry. Optimization parameters based on the European reference laboratories recommendations, availability of laboratory equipment and method suitability for routine analyses were taken into account. Extraction of analytes was based on shaking with acidified methanol with formic or hydrochloric acid. Considering the matrix complexity, purification with sorbents and/or acetonitrile precipitation were applied. Method validation was carried out on several levels for selected representative agricultural commodities. Part of the thesis is a field experiment where potatoes plants were sprayed with the diquat active substance. Samples of treated plants and tubers were analyzed for diquat residues. The validated method was also used for screening of diquat and paraquat residues in feed samples collected within official controls of the Central Institute for Supervising and Testing in Agriculture in 2020. The final method enables to analyze diquat and paraquat with sensitivity suitable for the maximal residue limit controls.
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Hodnocení obsahu mykotoxinů v objemných krmivech jako primárním zdroji antinutričních látek v potravním řetězci
Bartoňková, Natálie
The aim of this thesis was to evaluated the content of mycotoxins in bulky feed. It was evaluated samples of bulky feed of perennial ryegrass, hybrid of italian ryegrass, orchard grass, red clover, hybrid of red clover and lucerne. The content of zearalenon and deoxynivalenol was established by metod ELISA. The difference was in content of mycotoxins in green fodder ang silages. On the content of deoxynivalenol had conclusive influence the type and the preservation (P less 0,05). In green fodder of the grass content of the deoxynivalenol was moveing between 0,14 and2,23 mg/kg, in silages was reduced. In clovers was conclusive influence of preservation (P less 0,05) on the content of the deoxynivalenol, when the green forred contained higher amount between 0,47 and 1,31 mg/kg. The content of the zearalenon was in grasses similar like in green fodder and silage, except for variant křížence jílku, which in the silage achieved values up to 959,98 microg/kg. On the content of zearalenon in clovers had influence the base, when in Troubsko was recorded higher ammount of mycotoxins in silages, while in Vatín the content was higher in green fodder.
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Nové trendy vo výžive vykrmovanej hydiny
Janušková, Anna
This bachelor thesis is about different types of poultry that are kept for fattening. It informs about differences of their digestive tract. It also states which hybrids are most often fattened and what fattening parameters we follow. It deals with individual feeds that are used in fattening poultry nutriotion. Furthermore, their processing, complete feed mixtures and sorting according to individual developmental stages to which they are fed. It is also about conveyor systems for the transport of feed used in farms. The following chapters deal with antinutritional substances and antibiotics contained in feed for fattened poultry and their impact on their health. These substances include mycotoxins, dioxins and heavy metals and other. The work also sets out two nutritional standards for fattening broilers. One standard lists the nutritional values for fattened broilers from 2007. The second standard lists the nutritional values for the COBB 500 from 2018. We are comparing standards in the work and present the changes at the end.
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Stanovení výživné hodnoty a hygienické jakosti vybraných plodin v závislosti na vegetačním období a způsobu skladování
Trlicová, Jitka
This Ph.D. thesis was focused on animal feeding. Field experiments were carried out in the field blocks running in the system of organic farming, where it was not possible to use any chemical protection. The plant selection was based mainly on the field/soil conditions and the particular kind of animals to be fed. The experiment was focused primarily on the year-round use of wild animal feeding, in other words, on allowing the forest animals to eat high quality nutritious food in the field during all seasons. In experimental boxes for forest animals selected crops were grown and the nutritional and feeding value was measured together with the health quality. Another part of the doctoral thesis deals with the evaluation of laboratory and food samples with respect to their nutritional value and hygienic quality in different growing seasons. In the thesis, different ways of storing and evaluating stocks were been mentioned too.
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VÝŽIVA SPORTOVNÍCH KONÍ ZAMĚŘENÝCH NA PARKUR
KOLÁŘOVÁ, Kateřina
This thesis deals with the Nutrition of sport horses. It is divided in 4 parts. First part is dedicated to digestive system and physiology of horses; next chapter describes the importance of individual macronutrients, vitamins and mineral substances. Third part informs about particular feed. Last chapter is the most comprehensive part expanding the basic knowledge about horses and specifically describes the equine nutrition of young sport horses and sport horses focused on show jumping. Last but not least, this chapter describes required care, feeding technique, balanced nutrition and training plan.
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