关键词: 贵妃鸡; 怀乡鸡; 北京油鸡; 肌肉品质; 肌纤维特性; 相关性

Abstract: In this study, meat quality and muscle fiber were tested, at the same time, relationship between fiber and meat quality were analyzed of Princess,Huaixiang and Beijing You cocks raised under the same conditions for 120 days. The results showed that the muscle color was significant difference (P<0.05), Beijing You cocks was higher than Princess cocks by 1.66, while Princess cocks was higher than Huaixiang cocks by 2.54, there was no significant difference in pH value of three different broilers (P>0.05), in the drop water loss, Beijing You cocks was significant lower than Princess cocks by 2.16%, and was significant lower than Huaixiang cocks by 2.59% (P<0.05). In the muscle fiber characteristic, Beijing You cocks was better than Princess cocks, while the Princess cocks was better than Huaixiang cocks, the leg muscle diameter were lower by 0.68 and 0.59 μm, respectively, however, the leg muscle density were lower by 373.67 and 142.07 root/mm², respectively (P<0.05). There were negative correlation between fiber diameter and density of Princess, Huaixiang and Beijing You chicken, however, the muscle fiber characteristic of Princess, Huaixiang and Beijing You chicken was positive correlation among meat color, pH value and drop water loss, it was no significant difference (P>0.05).

Key words: Princess chicken; Huaixiang chicken; Beijing You chicken; meat quality; muscle fiber characteristic; relationship