National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
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.
Czech red cattle breeding in the suckler
NABYTÁ, Michaela
Bachelor's thesis is focused on the comparison of the economics of Czech Red cattle (School Agriculture Company Haklovy Dvory) suckler herd with selected beef breeds (Aberdeen Angus and Limousine). Companies with identical and comparable rearing conditions natural breeding, systematical using of pasture possibilities, carrying out meat performance recordings, batch calf rearing and similar sea level etc., were compared. Main product of these companies is feeder cattle. Two factors affect realization of feeder cattle. The first one is its weight and second one is price per kilogram of live weight. It was found, that average daily gain was 1109 g and average weight 240 kg (210 days) of Czech Red cattle calves. In contrast, beef breed Aberdeen Angus reached 1402 g (P 0.001) average daily gain and weight of 308 kg in 210 days (P 0.001). Beef breed Limousine reached 1303 g average daily gain (P 0.01) and average weight of 301 kg in same age (P 0.001). The average price of Czech Red feeder cattle was around 50 Kč per kilogram, price of Aberdeen angus feeder cattle was 63-68 Kč per kilogram and price of Limousine feeder cattle was 73-83 Kč per kilogram of live weight. The differences were calculated in final prices and the subsidies (4,000 Kč per heifer) were taken into account. According to this calculation rearing of Czech Red cattle and production of feeder cattle is still having a worse economic outcome (in average 4,145 Kč (Aberdeen Angus) and 6,401 Kč (Limousine) respectively), than beef breed as a result of lower daily weight gain and also lower price.

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