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Peroral infections of birds and mammals with the neuropathogenic fluke Trichobilharzia regenti
Pech, Václav ; Horák, Petr (advisor) ; Blažová, Kateřina (referee)
Migration within the body of an infected host is one of the most important parts in the life cycle of flukes, including schistosomes. Migration of avian and mammalian visceral schistosomes has been a quite well studied topic (Haas a Haeberlein, 2009), which became more attractive after the discovery of T. regenti, an avian schistosome which is able to migrate through the nervous tissues of infected birds and mammals as well. Migration of T. regenti and T. szidati schistosomula within the definitive (duck) and the accidental (mouse) hosts is the main topic of the diploma thesis. This work continues with the research of K. Blažová (Faculty of Science, Charles University in Prague) who studied migration of T. regenti within the definitive hosts infected perorally with cercariae or hepatopancreases of the infected intermediate snail, Radix lagotis (unpblished). She proved that T. regenti schistosomula are able to use the central nervous system for migration to the nasal mucosa of infected birds. In our work, we focused on the early phase of migration within the perorally infected birds and mice. Invasion of esophagus by T. regenti cercariae in vitro is not conditioned by secretion of glandular products, including cathepsin B2 of T. regenti (TrCB2). Activity of TrCB2 against mucins, the main components...
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Risks of salmonellosis and prvention of this disease in public health education
VAČKÁŘ, David
This bachelor thesis deals with the origin and development of salmonellosis and the risks related to the bacterial disease. Symptoms of the disease as well as the varied ways the infection spreads are described. Risks associated to storing, processing, and taking in food are pointed out. These are related to prevention of the disease and its treatment when it develops, focused on fluid and food intake, too. The thesis includes a questionnaire survey about this diarrheal disease, with a concluding processing and evaluation of the questionnaires.
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Factors affecting quality of raw cow´s milk during milking and storage at farm
HAVRÁNKOVÁ, Iveta
Milk is one of the few products which we can use for direct consumption. Not only is it important for human nutrition as a raw product, but it also finds an increasing usage in food industry. The quality of milk is affected by various factors. This work deals only with the most important ones, which have an influence on the nutrition value as well as on the microbiological and hygienic quality of milk.
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