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Bull meat efficiency of national cattle population and its crossbreeds with beef breeds
JUNGVIRT, František
Cattlebreeding in the Czech Republic since 1990 has recorded significant decrease in numbers of kept animals but the quality of product - that means meat and milk has increased. The situation is characterized by good quality products but in comparison with developed countries low consumption of these products per person a year. The aim of this diploma work was to analyse result of fattening performance of Czech Pied Cattle bulls and their crossbreeds with beef breeds. In the evaluation were included 245 bulls - crossbreeds with meat breeds Blonde d´Aquitaine (BA) - 52 bulls, Charolais (CH) - 37 bulls and Simmental (MS) -38 bulls. The control group was made by 118 bulls of the Czech Pied Cattle - 684,1 kg and Charolais - 656 kg. Both groups had the highest intensity of growth. Charolais - 1 153 g and Blonde d´Aquitaine 1 072 g. These results corresponded to the weight of carcass that made up by MS crossbreeds 380.4 kg and by Charolais 365 kg. The highest proportion of meat showed out groups MS (78.9%) and at the same level Charolais (78.7%). The lowest amount of kidney fat was found by group Blonde d´Aquitaine. The highest content of the nitrogen substances (21.75%) and at the same time the lowest content of the intramuscular fat (1.73%) was showed up by the Blonde d´Aquitaine group. The lowest content of the nitrogen substances (19.39%) and the highest content of the intramuscular fat were showed out by the control group of the Czech Pied Cattle.
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