National Repository of Grey Literature 33 records found  beginprevious31 - 33  jump to record: Search took 0.01 seconds. 
Non-protein nitrogen substances in cow´s milk
VONDRA, Vojtěch
The purpose of this work is a characterisation of non-protein nitrogenous substances in cow's milk. The work is a summary of information from various sources. Main component of non-protein nitrogenous substances in cow´s milk is urea. Content of urea has impact to life cow´s. He has impact to milk industry too. Urea has connecting with lactations, with ration feed and with another factors. Urea of milk is good index to asses internal and external conditions to each.
Seasonal dynamics of selected blood parametres of selected flesh breeds of sheep bred in foothills conditions
ŽÁČKOVÁ, Klára
Sheep breeding is nowadays a developing branch of agriculture again. There is a lot of different breed and they react distinctly on the same conditions of the enviroment. Sheep of breeds charollais, suffolk, šumavská ovce and valaška bred in similar conditions were observed in spring and autumn of years 2007 and 2008. In these seasons were taking blood samples (from {$\pm$}7{--}24) ewes and lambs and were analyzed in hematology laboratory. There were determined haemoglobin level, haematocrit indicator, erytrocytes and leucocytes levels, glucose, cholesterol, triglycerides levels, urea and plasmatic proteins, activity of ALP and GMT enzymes, phosphor, calcium, magnesium, zinc and copper levels. The main objective of this project was determine seasonal changes in observed parametres. Next objectives were determine different changes in blood parametres in different breeds and different aimes of breeds. There were recognized that all the observed breeds don`t react the same way on similar conditions. There were not provably determined seasonal changes in observed parametres, but average Hb level was higher in autumn than in spring. Urea level was conversely higher in spring season than in autumn. The demostrable fact is, that the similar conditions induce different answers not only in different breeds but also in different aimes of breeds.

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