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Mladý ječmen a chlorella jako součást zdravého stravování
BÍCOVÁ, Pavla
Products of young barley and chlorella belong to the increasingly popular nutraceuticals due to their rich nutritional composition. The aim of the thesis was: to assess the offer of young barley and chlorella in the market network in the Czech Republic, to evaluate the knowledge about these products and the effects of using these dietary supplements by questionnaire survey (n = 338) and to assess the quality of the selected products. There is a relatively wide range of chlorella (57 products; 75 % in tablet form) and young barley (24 products; 71 % in powder form) products on the Czech market, which differ in composition, processing method, country of origin, price and information provided about them. Knowledge of the production method and the contents is important when consumers choose products. This knowledge was found to be low among some users. Awareness increased statistically significantly with age and educational attainment. The majority of users of chlorella (181; 55 %) and young barley (224; 68 %) did not suffer from side effects associated with initiation of use. The most frequently reported adverse symptoms were related to the gastrointestinal tract (diarrhoea, constipation). The most frequently reported beneficial effects were more energy and vitality, improved digestion and immunity. The microbial quality of the chlorella and young barley samples met the legislative requirements. Total polyphenol content and total antioxidant activity were lower (1.20?0.00 mg/g - 1.35?0.01 mg/g, 0.73?0.00 mg/g - 0.84?0.02 mg/g, respectively) in chlorella (11.44?0.26 mg/g - 7.92?0.25 mg/g, 10.36?0.00 mg/g - 22.76?0.27 mg/g, respectively) compared to young barley.
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Minerální látky ve výživě masného skotu charolais
BÍCOVÁ, Pavla
The thesis deals with the significance of minerals in nutrition of charolais beef cattle. We classify minerals as additives, and they are very important in the nutrition of cattle. They are divided into macronutrients and micronutrients. Their deficit can have negative consequences for fetal development, juvenile growth but also for adults. Nowadays, pastures and forages do not provide enough minerals. It is necessary to supplement them with suitable feed ration and control their amounts in the body. The first part of the thesis focuses on the characteristics of beef cattle. The charolais breed belongs to the most efficient beef cattle but also one of the breeds which are demanding on nutrition. In the second of the thesis, the morphology of the digestive system and its function is described. In the last part, the individual minerals and their application to feed rations of individual categories of cattle are characterized. It is important to deal with the mineral nutrition from the last third of pregnancy, when the nutrition affects the unborn calf the most and has influence on the state of minerals even after its birth. The most common way to supplement minerals at farms is by mineral licks or mineral premixes. The most suitable is to supplement organic minerals, which are more absorbable for the organism than the inorganic ones.
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