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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Influence of selected factors on the fattening capacity and carcass values of bulls in the control station Želeč
 PUFR, Josef
Cattle breeding is one of the part of traditional Czech agriculture. It is a vital part of economy consisting of two main branches - milk and beef production. Beef is one of the main products of cattle breeding sometimes provided by fattening of heifers, cows and bulls. Producing meat with the highest quality with low costs is the main goal of fattening the cattles. I have tested the influence of selected fators on the fattening capacity and carcass values of Czech Fleckvieh bulls in the control station as well as the economic requirements of the fattening period. I have compared the test period of 530 ? 10 days with period of 610 ? 10 days of fattening using the old and new technology of supplementation. Further fattening was provided by results of growing Charolais, Limousin and Czech Fleckvies x Simmental bulls. The results suggest that the increase of the period of fattening for 80 days had a positive effect on carcass yield (p < 0.001), assigning in the classification according to SEUROP and profitability of farming. The positiv relationships between breeding value of fathers and carcass yield of their sons was observed. Finally, the positive influence of new technology of fattening on the classification acording to SEUROP was shown.
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conversion of biodegradable waste into pollution-free products
 PUFR, Josef
This thesis deals with the conversion of biodegradable waste (BDW) into pollution-free products. The introduction addresses the specification of BRO, collection and identification of waste in the catalog and then the main means of transformation. The second part deals with the main objective of the proposal in Chýnov composting. This project involves collecting information, selecting a suitable location, design, technological lines, select the appropriate technical means, but also in the calculations of the composting area and its economic evaluation. Given the need to address this problem in Chýnov, it is likely that this proposal will be based on an actual project.
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