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Basic characterization of selected samples of animal feeds
Svoboda, Ilona ; Hrstka, Miroslav (referee) ; Vítová, Eva (advisor)
The aim of the diploma thesis was to choose poper parameters for a quick and simple characterization of animal feed, to verify working procedures and to apply these on chosen samples. Within the scope of this work, samples of animal dog feed produced in a private company „Adamkovy tlacenky“ were analyzed. The feed is in the form of brawn, stored in artificial casing; it consists of up to 80% of animal components and up to 20% of vegetable components, while the rest of the weight is the pork gelatine. The feed does not contain preservatives, colourings as well as any other chemically produced additives. For the analysis three formulas were chosen: "Hovězinka", "Kuřátko" and "Srdcovka", the composition of which is protected by the patent. The choice was made to include samples of different composition. The content of raw crude protein, fat, fibre, dry basis, and ash was determined. The obtained values were compared with the standards for feed normally utilized by the feed industry. The results will be used to improve the formulas and to develop new types of feed.
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The content of chosen mycotoxins in feeds
Zelníčková, Lenka ; Babák, Libor (referee) ; Kellnerová, Dita (advisor)
This diploma thesis is focused on current problematics of monitoring of selected mycotoxins, DON and ZEA, in feeds in Czech Republic. The objective of my thesis was to elaborate a literature search from available books, electronic and periodical sources and service materials. Literature search is aimed at overall overview of mycotoxins, describes their characteristics, biological effects, methods of detection as well as summarizes recent legislation requirements concerning occurrence of these substances in feeds for animals. The aim of experimental part was a determination of selected mycotoxins in feed (DON and ZEA) by ELISA method and their evaluation according to the maximum limits. The diploma thesis was prepared in diagnostic laboratory SEVARON, s. r. o. in Brno.
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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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System for measurement of aerobic stability of forage
Synek, Josef ; Sekora, Jiří (referee) ; Harabiš, Vratislav (advisor)
Aerobic stability is a term which nutritionists use to define the length of time that forage remains stabil and don‘t degrade. Once fermentation is completed and the forage is exposed to air during feeding or during storage (leaky silos, poor packaging) increases the temperature of the forage initiated by yeasts or lesser extent by the action of some bacterias. This temperature is measured using temperature sensors and it is compared with the ambient temperature of the surroundings. Aerobic stability is given as the time, for which the forage temperature rises by 3°C above ambient temperature.
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Vliv výživy na metabolické poruchy u vysokoužitkových dojnic
Neradová, Izabela Helena
This bachelor´s thesis deals with the issue of the most common metabolic diseases that occur in high yield dairy cows in connection with the incorrect composition of feed rations. Is focuses on ketosis, acidosis and alkalosis of the gastric content, milk fever, but also other, less important disorders that are also closely related to a quality diet. It describes their etiology, pathogenesis, symptoms and possibilities of diagnosis and therapy. Part of the work are preventive measures that must be followed to re-duce the incidence of diseases in herds. Furthermore, this work deals with the division of basic feeds into bulk and grain. It contains their characteristics pointing out the main risks associated with the occurrence of metabolic disorders. The following part focuses on the different principles of nutrition in the transition period. It also de-scribes the possibilities of feeding techniques. In the final part of the work the author presents her conclusions and recommendations.
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Výživa koz
Kopecká, Michaela
The aim of this paper is to introduce the main principles and types of feed in goat nutrition. The main focus of the work is on dairy goat nutrition and the influences on milk production. Goat milk is a raw material whose quality depends on nutrition. In addition to dairy goats, it also deals with feed composition and individual rations. As a result of this work, information on existing goat breeds, feeds suitable and unsuitable for goat nutrition and feed rations are sorted out. The composition of rations depends on several factors. The main distinction is the age of the animal. Baby goats are fed differently from adult goats. Another key factor is the physiological condition of the goats. Other factors influencing goat nutrition include the season, which determines the summer and winter rations. In order for nutrition to be comprehensive and achieve the desired results, all factors must be taken into account.
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Hmyzí protein v krmivech pro drůbež – kalkulace ceny produktu a marketingová strategie.
Pešková, Barbora
Pešková, B. Insect protein in poultry feed – calculation of product price and marketing strategy. Bachelor thesis. Brno: Mendel University in Brno, 2023. The main goal of this thesis is to propose and financially quantify a marketing strategy for poultry feed containing proteins obtained from permitted insect species. A further goal is the calculation of their price and comparison with standardly used types of feed. The issue of poultry feed containing insect protein is described in the literature review. For potential feed is created calculation of their price. The thesis also contains questionnaire surveys across three groups – poultry feed producers, poultry farmers and final consumers of poultry meat/eggs. At the end, there is proposal for a marketing strategy incl. of her financial estimate.
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Vliv alternativních zdrojů bílkovin v rybím krmivu na růst ryb a rostlin ve dvousmyčkovém akvaponickém systému
NIKL, Ondřej
The objective of this thesis was to evaluate the production efficiency of feeds which were designed with the intention of developing a special aquaponic feed. Further, to evaluate the content of nutrients in water, sludge and nutrient solutions and their influence on plant growth and finally suggest possible modifications to the feed composition. Aquaponic feed should respect nutritional requirements of fishes and plants, not put burden on the environment by not used nutrients and with regards to sustainability, use alternative sources of protein instead of marine fish meal. Because of that, three experimental isoprotein and isocaloric feeds were proposed. Feed A contained conventional ingredients including marine fish meal. Feed B used freshwater fish meal and exclusively plant proteins not regarding its origin. Feed C was made of sustainable and local sources of protein. The experiment was conducted in the aquaponic hall of Faculty of Fisheries and Protection of Waters, University of South Bohemia. As experimental material was used Nile tilapia (Oreochromis niloticus) and lettuce (Lactuca sativa). Feed B shown similar values of all production indicators as conventional feed A. Weight of fishes in system A after thirteen weeks increased by 143,68 % and in system B by 136,56 %. Weight of fishes in system B was at the end of experiment inconclusively lower by 4,08 %. Feed conversion ratio (FCR) of feed B (1,92?0,10) was inconclusively higher by 8,47 % against FCR of feed A (1,77?0,13). Average weight of aerial parts of plants growing in nutrient solution created from mineralized sludge gathered from system B, supplemented with missing nutrients reached value 221,8?33,9 g after four weeks. That was inconclusively more by 44,21 % than average weight of plants grown in special hydroponic solution and by 8,62 % more than weight of plants grown in enriched solution gathered from system A. Experimentally it was proven that in aquaponic feeds it is possible to substitute marine fish meal by alternative source of protein and using these feeds ensure an effective nutrition for fish and plants in a two-loop aquaponic system.
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Analýza úrovně výživy a vybraných kvalitativních ukazatelů produkce mléka
KAZDA, Miloslav
The diploma thesis focuses on the analysis of the nutritional level of dairy cows and its influence on selected qualitative indicators of milk production. The aim of the work is to carry out a comprehensive assessment of the impact of feed ration and its composition on the quality and quantity of milk production, with an emphasis on identifying optimal nutritional conditions for achieving the highest utility and ensuring good health and living conditions for dairy cows. In the first part of the work, a theoretical review of current knowledge about dairy cow nutrition and milk quality was carried out, focusing on energy and nutrient needs of dairy cows, quality and optimal representation of feed, individual phases of lactation, milk quality, microbiological and hygienic value of milk, and factors affecting its quality. In the second part of the work, an analysis of the nutritional level in the selected breeding was performed. Mixed feed rations and individual components contained in them were evaluated here. Furthermore, utility and qualitative indicators of milk (fat content, protein, lactose, somatic cells, and total number of microorganisms) were assessed.
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Využitie marketingových nástrojov pri zvyšovaní predajnosti chovateľských potrieb Zooprodukt, s.r.o.
Ábelová, Monika
This bachelor thesis deals with tools of marketing . The goal of thesis is to raise the saleability of pet supplies. The theoretical part defines basic concepts, respective tools of the marketing, definition and specification of pet supplies, which are used in practical part. In the practical part are designed recommendations to increase the effectiveness of using the sales promotion of pet supplies, based on the analyses of marketing mix and saleability of the products.
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