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Vliv vybraných prvků chovného prostředí dojnic na technologické vlastnosti jejich mléka =: Influence of selected breeding dairy elements on the technological properties of their milk /
Henzl, Vratislav
The subject of this dissertation was the analysis of the influence of selected breeding dairy elements on the technological properties of their milk. The monitoring took place from October 2012 to October 2013 (53 weeks) for a total of six milk suppliers within the Vysočina Region. During the experiment, a total of 318 milk analyzes were analyzed in the Agricultural and Analytical Laboratory in Pribina Pribyslav and 172 sample analyzes in the CL (Central Laboratory) Buštěhrad. The breeding environment has been monitored continuously, in particular in stables and temperature and relative humidity outside the stables. The observed parameters of the breeding environment were the temperature in the stable, the outside temperature for comparison and the relative humidity. Milk suppliers were selected based on the breed dairy breed, dairy cradle and milking method. It has been shown that the milking method of dairy cows (milking parlors, cans and piping) had a statistically proven effect on milk constituents. The fat content was statistically significantly lower in case of milking in milking parlors than milking in pipes and hoses. The content of proteins and dry matter had the opposite trend, ie higher milking milking and lower milking content in cans and pipes. This fact was confirmed in the further analysis of the data, according to the conditions of the housing, when the same situation was repeated. The influence of the accommodation method on the temperature conditions in the stable was demonstrated, and the temperature at the stables was clearly higher, which ultimately had a significant impact on the cheese's curdiness and quality, as described above. The influence of the milking method on the microbial load of milk has been demonstrated. The lowest values were recorded during milking in the milking parlor, either CPM (total number of micro-organisms), number of coliform bacteria or SB (number of somatic cells)
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Vliv vybraných ukazatelů chovného prostředí na úroveň welfare dojeného skotu
JAROLÍMKOVÁ, Alžběta
The diploma focuses on an assessment of welfare, technology and technological systems related to an efficiency and health condition of dairy cattle in selected farms in the Czech republic. Farming and veterinary database had been used in the process of compiling the diploma content; and screening methods to assess a welfare level in dairy cows herds. Stables for dairy cows must be in a dispositional, technical and operational compliance with the applied farm technology, in order to keep air circulation, dustiness, temperature and relative air humidity, gas concentration, lighting and noise levels within the safe limits. Any of the farm technological systems must not affect health condition and well-being of animals. Environment, providing animals conditions allowing natural behavior, rest and intake of food and water, creates a foundation for sustaining an appropriate welfare level of cattle as a significant prerequisite for reaching optimal productional a reproductional indicators. Even though there was no significant statistical difference documented (p >0,05) between monitored farms in selected indicators, an analysis of mutual dependency has been conducted between the environment level and some productional and reproductional indicators and health conditions of cattle.
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