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Selected milk quality parameters in cured cows
 HRUBEŠOVÁ, Kristýna
The work deals with the monitoring of selected indicators of milk quality including residues of inhibitory substances (RIS) in the milk of cows treated with selected groups of antibiotics. It contains an analysis of selected factors that act on these indicators. The theoretical part deals with the inhibitory substances, their effects on the human body and the processing technology. The paper describes the application of antibiotics to treat mastitis and drying off cows including factors that affect the excretion of antibiotics in milk. The legislative regulations relating to this issue are also a part of the theoretical section. The practical part is divided into three parts. The first part focuses on the characteristics observed in cows treated within selected businesses and farms. The second part is focused on the assessment of the quality parameters studied samples (fat, protein and somatic cell count) and the third part is devoted to factors that influence the presence of RIS in milk samples. In determining the quality indicators monitored in milk treated cows, it was confirmed that the protein content and static cell count (SCC) are in these cows due to disease increased and the mean value of the SCC did not correspond to a given limit legislation. When monitoring factors affecting presence RIS, it was found that the method of drug administration group and used antibiotics have influenced the presence RIS after the withdrawal period.
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