Působení vybraných vlivů na užitkovost masných plemen skotu

This thesis deals with the evaluation of factors affecting the determination of meat production. Meat production is increasingly popular indicator in cattle, due to the increase in the number of bred suckler cows, as a result of poor economics of dairy farming. The aim was to ensure and evaluate the results of influences on the results of performance tests in selected breeding cattle. As selected influences were chosen order of calving difficulty giving birth, month of birth of the calf, breeding value of mother, father. Do assessment was included in one group of purebred females breed Blonde d'Aquitaine, watched over 7 years. Checking performance was monitored pure breed Blonde d'Aquitaine breed in the stable Skrýšov, which include farm Krasna Hora nad Vltavou. Among the most significant findings made include weight 205,13 kilogram in 120 days in calves born from cows with breeding value 121-140. Weights reached 332,43 calves from bull ZBA 723 at 210 days of age. A bull calves from ZBA 375 was weighed average weight at 365 days, 544, 43 kilogram