Carcass value of the progeny of tested beef bulls
Polach, P.(Vyzkumny Ustav pro Chov Skotu, Rapotin (Czech Republic)) | Subrt, J.(Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Agronomicka Fakulta)E-mail:[email protected] | Bjelka, M.(Vyzkumny Ustav pro Chov Skotu, Rapotin (Czech Republic)) | Uttendorfsky, K.(ZRUD - Masokombinat, Policka (Czech Republic)) | Filipcik, R.(Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Agronomicka Fakulta)
In order to evaluate beef carcass quality and composition of hybrid bulls fattened in the Czech Republic, 361 half-carcasses of crosses with tested young beef sires were dissected. The tested breeds were Aberdeen Angus (AA), Blonde d'Aquitaine (BA), Belgian Blue (BB), Charolais (CH), Hereford (HE), Limousine (LI), and Piemontese (PI). The control groups were bulls of the Czech Pied (C) and Holstein (H) breeds. The bulls were fattened together and slaughtered at the age of 500+/-30 days. The best commercial class according to the SEUROP system was found in the offspring of Charolais sires (3.17). The fat content was the highest in the BB group (2.45) and the lowest (P less than 0.01) in the PI group (1.50). The average hot carcass weight was 332.54 kg, the lowest one was found in bulls of the HE group (290.50 kg, P less than 0.05). The dressing percentage of meat, bone, separable fat, and the meat/bone ratio were calculated. The average meat percentage in the carcass was 78.47%. The dressing percentage of meat of PI group was 80.33%, it was the highest one of all the groups (P less than 0.01). H group showed the highest proportion of bones (19.79%), which was by 2% higher than in PI group. The content of separable fat ranged between 1.29 and 3.68%.
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