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Trendy v oblasti drůbežích produktů
Půčková, Dominika
This thesis eleborates about trends in poultry products. A trend in poultry farming is the enrichment of poultry feed mixtures for higher yield and meat quality. Another trend is a need to breed new heat resistant poultry breeds and slow growing breeds. Breakthroughs in innovative technologies include cold plasma, which is effective in decontaminating poultry meat, and a magnetic sensor that mimics the function of a human tooth. An imaging detection system has been developed increasing incidence of meat defects. The trend is to use enzymes and xanthan gum to create products with modified texture. Another trend is to increase the nutritional value using 3D printing. In gastronomy, the trend is to prepare poultry using the sous-vide method. In the area of waste and poultry products, the recovery of keratin from feathers or the reuse of poultry litter using various technologies are new. Plant-based alternatives to poultry meat are becoming more popular, along with their functional components and additives. Finally, consumer´s perceptions of conventional meat, “cultured meat” and plant-based alternatives were assessed.
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Trends and Patterns of Meat Consumption in The European Union
Teiml, Matěj ; Pleticha, Petr (advisor) ; Ehrenbergerová, Dominika (referee)
The goal of this thesis is to research the consumption of meat in the European Union and to look for trends and patterns regarding the consumption. We will take advantage of the panel data structure and use our own balanced panel data set to properly verify and quantify the relationship of macroeconomic, and country specific variables with annual meat consumption per capita. We used data covering the consumption of meat in the European Union member countries in the year of 2018, with data ranging from 2000 to 2018. All data in our thesis are annual and aggregated at the level of single European Union member countries. We used standard panel data analysis tools to reach statistically significant results to recognize and estimate the important determinants of meat consumption in the European Union
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Trends and Patterns of Meat Consumption in The European Union
Teiml, Matěj ; Pleticha, Petr (advisor) ; Ehrenbergerová, Dominika (referee)
The goal of this thesis is to research the consumption of meat in the European Union and to look for trends and patterns regarding it's consumption. We will take advantage of the panel data structure and use our own balanced panel data set to properly verify and quantify the relationship of macroeconomic, microeconomic, and country specific variables with annual meat consumption per capita. We used data covering the consumption of meat in the European Union member countries in the year of 2018, with data ranging from 2000 to 2018. All data in our thesis are annual and aggregated at the level of single European Union member countries. We used standard panel data analysis tools to reach statistically significant results and concluded that individual propensity to consume meat varies between countries of the European Union and found evidence suggesting that urbanization and labour force participation impact meat consumption significantly.
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Texturní vlastnosti drůbežího masa a výrobků
Radomská, Silvie
Texture is taken as a complex of properties that can be divided into mechanical, geometrical and surface. Among the mechanical properties include hardness, cohesiveness, adhesiveness, elasticity, viscosity and brittleness, chewiness and gumminess. The group of geometric properties include attributes relating to size and shape. Among the surface properties include juiciness. Textural properties of poultry meat and meat products are affected by factors such as species, breed, sex, age, method and level of nutrition, health, stress or post-mortem effects. They are also textural properties affected by the chemical composition and structure of meat. Evaluation of textural properties may be using sensory and instrumental methods. Sensory evaluation methods nowadays serves as a supplement to instrumental methods. Instrumental methods can be divided into basic, empirical and imitation. Empirical methods incorporate shearing test using a Warner-Bratzler and Meullenet-Owens razor blade, a compression test using a Kramer cell and penetration tests. Imitating methods are represented by texture profile analysis.
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Vliv různého podílu purpurové pšenice na senzorickou jakost drůbežího masa
Hrabal, Ondřej
The aim of this thesis has been to investigate what impact on sensory meat quality will purple wheat content have in the feed of broiler chicken Cobb 500. The chicken were divided in five groups, while each group was fed with a different purple wheat to control wheat ratio. The consequent sensory analysis of breast and thigh meat samples was carried out in a university sensory laboratory meeting the ISO 8589 requirement. According to the results of the following statistical assessment, both breast and thigh meat samples were judged as possessing better sensory qualities whenever they came from the chicken fed with some purple wheat content. Regarding thigh meat, best results were achieved in a group given 1/3 purple wheat and 2/3 control wheat. For breast meat, it was impossible to indicate the best ratio of wheat types. In general, however, it can also be stated that chicken fed with some purple wheat content reached better results than the control group did.
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Vliv zbytků po zpracování technického konopí na senzorickou kvalitu kuřecího masa
Macek, Tomáš
This master thesis deals with the influence of hempseed cakes and hemp herbs contained in broiler feed mixtures on the sensory quality of chicken meat. Experimental groups of ROSS 308 broilers were given a feed mixture containing 1) 2.5 % hempseed cakes, 2) 2 % hempseed cakes + 0.5 % hemp herbs and 3) 1 % hemp herbs. The last group was Control that contained no hemp products. During the experiment, the amount of dry matter, nitrogenous substances and fat with final sensory evaluation of the breast and thigh muscles was determined. In terms of determination of dry matter, nitrogenous matter and fat content, no statistically significant difference was found between the groups (P > 0.05). The same statistical results were also found in sensory analysis, where no statistically significant differences (P > 0.05) were found in any descriptor. It can therefore be concluded that the addition of hempseed cakes or hemp herbs did not aggravate the proportion of dry matter, nitrogenous matter and fat or the sensory quality of chicken meat.
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Stanovení reziduí inhibičních látek v mase drůbeže screeningovými metodami
Strmiska, Vladislav
The Commission Regulation European Union (EU) no. 37/2010 laid down the maximum amount of antibiotics in poultry meat. Consuming foods that contain excessive amount of antibiotic residues may cause resistance of certain strains of microorganisms towards certain groups of antibiotics, hypersensitive reactions and destruction the natural intestinal microflora. This study aimed to the assessment of antibiotic residues in poultry meat by screening method Premi Test (R-Biopharm AG, Germany). We also determined the microbiological contamination in poultry meat that aimed at different groups of microorganisms depending on the origin of poultry, storage and anatomical parts. The groups of microorganisms were evaluated by the total viable count, count psychrotrophic microorganisms, E. coli, coliform microorganisms, fungi and yeasts. The samples came from the Czech Republic and the EU. The meat was chilled and frozen, breast and thigh muscle.
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