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Turning of steels at low depths of cut
Tichá, Dana ; Dvořáková, Jana (referee) ; Dvořák, Jaromír (advisor)
Thesis is devoted to the analysis of the competition of indexable cutting inserts, which are used for turning at lower cutting widths of the blade than the tip radius. Thesis is an analysis of five indexable cutting inserts from diferent companies. Furthermore the chip breakers of selected inserts are compared and finally the testing of the insert and its results based on metal chip shapes are described.
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Stravitelnost krmiv pro kapra obecného
MAREŠ, Josef
This bachelor thesis evaluates the composition and apparent digestibility of various types of fish feed and various ingredients applicable to the feeding of common carp. This bachelor thesis also evaluates the suitability of individual components based on the digestibility of individual nutrients. The results show that the right combination of fish feed improves efficiency, reduces feed consumption and increases growth. Last but not least, the negative impact of feeding on the quality of the aquatic environment should be reduced. This bachelor thesis summarizes existing digestibility values of individual feed ingredients for common carp and then its own experiment, which was very time- consuming. Some already known values have been confirmed and some new information about the content of individual components of feed and their subsequent use has been found. The results for wheat and maize were compared with results of other authors. Triticale, daphnia and chironomidae larvae were used for the first time, so the values could not be compared, nevertheless it could be used as a basic information for further research in this area. The average content of individual cereal parameters were: 16% protein content and 64% digestibility, 2% fat content and 70% digestibility, 74% BNLV content and 74% digestibility. Fiber content 5% and ash content 2% with very low digestibility. Phosphorus content 0.6% and digestibility 30%. Average content of individual parameters for natural foods was: protein content 55% and digestibility 86%, fat content 5% and digestibility 74%, BNLV 20% and digestibility 41 %, fiber content 7% and digestibility 8%, ash content 14% and digestibility 30%, phosphorus content 1.2% and 74% digestibility. The resulting element was to determine the most suitable feed for pond aquaculture. According to the available results, wheat combined with natural food is the best option. Wheat is very energy rich, but has a low protein content. Conversely, natural food is energy rich in easily usable protein. The optimal ratio of natural food to wheat was 0.25:2. With this ratio we can meet the ideal nutritional requirements of common carp (31% digestible protein, 0.6-0.7 % phosphorus, 3200 kcal?kg-1 digestible energy). With the right feed, we are able to reduce the negative impact on water quality and this is one of the main goals for the future.
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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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PCR detection of genetically modified soybean in food and feed
JOSKOVÁ, Markéta
The aim of this thesis was to summarize in the theoretical part the issue of genetic modifications and their main use. Another task was to describe various methods used for detection of genetically modified plant products and their properties. The practical part is focused on the isolation of DNA from various foods and feeds containing soy. Using the PCR method, samples were tested for the presence of soy DNA, the CaMV promoter, and the Roundup resistance transgene. A total of 42 samples were tested and 5 of them contained transgenic soy.
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Kontrola kvality TMR pomocí Penn State separátoru u vysokoužitkových dojnic
BRABENEC, Vojtěch
The aim of this bachelor thesis is to focus on the control of dairy cow´s nutrition in the agricultural company because nutrition is the most important factor in the proces of milk production. The search deals with the way and technique of feeding in every single phase of lactation. This part of the bachelor thesis describes voluminous and salty feed as well as their usability in feeding dose and their nutritional qualities. The race "Holštýn", it´s characteristics and need of nutrients in nutrition is also mentioned in the thesis. The main part of the thesis is to introduce Penn state particle separator (2002), which has been used for the control of feeding in the farms. This part characterizes it´s utilization in place, the method of application, evaluation of feeding dose with it´s influence on dairy cow´s health and efficiency. The results have been compared to the standard determined for separator as well as evaluated in view of the milk yield and milk components. The thesis contents a series of trials made over the observed period,which is evaluated in the conclusion of the thesis, and the influence of feeding dose´s structure on dairy cow´s efficiency and health.
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Přesnost nakládky do závěsného horizontálního krmného míchacího vozu
PŘIBYL, Miroslav
The theoretical part of the thesis entitled "Accuracy of loading into a hanging horizontal feed wagon" deals with the historical development of feed administration of cattle and currently used trends in feeding. The diploma part also describes the basic technology of production of bulky and fodder fodder, there is also a modern technology for their distribution, characteristics and the way of loading individual components of the ration, which also includes the evaluation of loading of individual components. The thesis also deals with the choice of mixing feed wagon. The practical part is focused on the evaluation of loading accuracy into the hanging horizontal feed wagon.
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Technologické úpravy krmiv
ŠENKYPL, Petr
This bachelor work describes methods of animal feed processing which represent an important step in animal feed. Emphasis is put on the description of feed processing technologies and their use in animal feed. Nowadays, thermal feed processing methods play a crucial role among feed processing methods. Thermal feed processing methods can significantly influence the economy of the farming practice and quality of the feed. Furthermore, the bachelor work describes the influence of the feed processing on the quality of feed, primarily on the content of nutritional and antinutritional factors, feed palatability and its suitability for particular groups of livestock.
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Design of small CNC milling machine
Rajdl, Filip ; Pavlík, Jan (referee) ; Blecha, Petr (advisor)
The bachelor thesis deals with the design of headstock, spindle and Z axis of a small CNC milling machine. Firstly, the current state and production of small CNC milling machines is described. The other contains a system analysis of the given issue. Then input parameters are selected to be used for the necessary calculations. The last part of the thesis contains the structural design of the headstock and spindle with Z-axis feed, which is created in Autodesk Inventor. It includes a 3D model, assembly drawing, and production drawings.
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Základní aspekty výživy sportovních koní
MARTINCOVÁ, Veronika
Bachelor thesis Basic aspects of nutrition of sport horses deals with the nutrition and feeding of racehorses. In the thesis, digestive system of a horse is described. The characteristic of basic nutrients and most common feed, used in the nutrition of sport horses, are described as well. Then, the rules of feeding horses are also described, as well as the feed used for racehorses in the time period of racing season, according to energetic needs of horse's organism. Mentioned are also diseases caused by incorrect nutrition, also the constantly increasing number of cases of horse-doping. The prerequisite for healthy grow, correct development and horse's performance is good nutrition.
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