| Black-bone chickens of Lueyang at 120 days old as the research object, the slaughter performance and meat traits were
measured and analyzed. The results showed that live weight, slaughter weight, half eviscerated weight, eviscerated weight and chest muscle weight, leg muscle weight of cock were concerned better than those of hen, the differences were very significant (P<0.01), the cock'sslaughter rate, half eviscerated rate, leg muscle rate were 89.15%, 82.40%, 24.05%, significantly higher than the hen (P<0.05), and the other character indexes were not significant differences in gender; The cock and the hen's leg muscle OD value of meat color, pH value and shear force were higher than the chest muscle, water holding capacity and cooked meat rate were lower than the chest muscle, the differences were significant (P<0.05), and all kinds of indexes were not significant differences in gender (P>0.05); Moisture content and crude fat content of leg muscle were more than those of chest muscle, but contents of crude protein and crude ash, leg muscle less than chest muscle, the differences were significant (P<0.05). Research showed that the cock and the hen both have better performance in producing meat and excellent muscle quality, but the cock's slaughtering performance were better than the hen. |
