Final BW (at 18 months) and BW gain were greater(p<0.05) in CBK and BCBK compared with JNC (Table 2).The CBK and BCBK gained 27.42 and 25.99% more BW at18 month of age compared with JNC, respectively. Averagetotal and daily concentrate and roughage DM consumptionwere greater in CBK and BCBK compared with JNC (Table2). The CBK and BCBK animals consumed significantlyless (p<0.05) DM for a unit BW gain than JNC. Bodyweight gain, DM intake and feed conversion efficiencywere not different between CBK and BCBK (Table 2).Hanwoo, Wagyu and JNC are known for their geneticability to produce highly marbled beef (Yang et al., 1999;Lee et al., 2003; Moon et al., 2003), but they grow at alesser rate than specialized western beef cattle likeCharolais. Mir et al. (1999) reported that animals withcontinental inheritance grew faster than animals with 1/2 or3/4 Wagyu inheritance. Myers et al. (1999) also reportedthat Wagyu cattle grew more slowly than British cattle.Similarly, other workers (Mears et al., 2001; Kuber et al.,2004; Wheeler et al., 2004) reported rapid gain and higherfinishing BW of crossbreds (Wagyu×Charolais, Wagyu×Limousin, and Wagyu×Hereford) cattle compared withpurebred Wagyu. In the current study, animals with JNCinheritance had the lowest slaughter weight. Greater BWgain, DM consumption and better feed conversionefficiency in CBK and BCBK compared with JNC may beascribed to the effects of heterosis and the inheritance ofCharolais genes in the crossbreds.Weights of hot and cold carcass, ribs and boneless meatwere noticed significantly different (p<0.05) among JNC,Table 2.
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