RT Journal Article
SR Electronic
A1 Chládek, Gustav
A1 Falta, Daniel
T1 Beef performance of Holstein calves slaughtered at 300 kg of live weight
JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
YR 2014
VO 54
IS 4
SP 13
OP 20
DO 10.11118/actaun200654040013
UL https://acta.mendelu.cz/artkey/acu-200604-0002.php
AB The aim of this work was to quantify basic feedlot performance and carcass value characteristics of Holstein bulls slaughtered as "young cattle" at 300 kg of live weight. The observation was carried out in a group of 12 Holstein bulls fattened in identical conditions and fed on a diet consisting of ad libitum amount of crushed grain (barley and wheat) and a limited amount of protein concentrate.The mean overall values were as follows: age and live weight at slaughter 275.9 days and 299.3 kg, daily weight gain and net weight gain since birth 0.962 kg and 0.527 kg, dressing percentage 48.3%, weight of cold right carcass half 71.0 kg, weight of bones 17.5 kg, weight of muscle 53.0 kg and separable fat 0.54 kg. The mean weight of hide was 21.6 kg. The great majority of calves were classified as O2, one calf graded R2. The forequarter to hindquarter ratio was 1.4 with mean weights 29.1 kg and 41.9 kg. The mean weight of neck was 3.9 kg, chuck 3.6 kg, shoulder 5.9 kg, fore shank 3.4 kg, loin 4.1 kg, filet 1.5 kg, round 18.2 kg and hind shank 1.3 kg. We found highly significant (P