Assessment of beef production from Brahman x Thai native and Charolais x Thai native crossbred bulls slaughtered at different weights. I: Growth performance and carcass quality
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Effects of genotype and slaughter weight on growth performance and carcass quality of Brahman x Thai native (BRA) and Charolais x Thai native (CHA) crossbred bulls were studied. Thirty-four BRA and 34 CHA bulls raised under practical fattening beef farm conditions were randomly selected and slaughtered at 500, 550 and 600 kg live weight, respectively. Parameters of growth performance, carcass quality and commercial prime cuts were determined. Results showed that growth performance and carcass quality of CHA was better, since they showed higher weight gain, better body muscle score, higher carcass weight high dressing percentage, higher carcass muscle, less carcass fat and bone plus connective tissue proportions, better carcass classifications, greater loin eye area and higher commercial prime cut percentage. Slaughter weights up to 600 kg resulted in increased carcass weight, loin eye area and percentage of commercial prime cuts and can therefore be recommended. (C) 2010 Elsevier Ltd. All rights reserved.
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