摘要： 将固始鸡饲养至4周后，分别笼养和放养至18周，测量其体尺、屠体性能，到42周龄测量蛋品质。结果表明，笼养和放养的活重差异显著（P>0.05），其余屠宰指标差异不显著；蛋品质除了蛋重和蛋壳厚度差异显著（P<0.05）外，其余指标差异均不显著；放养条件下，纤维素酶高于笼养，而对总蛋白水解酶、胰蛋白酶和胃蛋白酶影响不显著。

关键词: 固始鸡, 屠体性状, 体尺, 消化酶, 蛋品质

Abstract: When Gushi chickens were 4 weeks old,they were divided into two groups,one of which was raised in cage and another in freedom.When they growed to 18 weeks old,their body weight,body size and carcass index were measured.When they reached to 42 weeks old,their egg quality was measured.The results showed that only the dressed carcass index was significantly different in the two different rear ways.For the egg quality,Only the egg weight and eggshell thickness presented remarkable difference(P>0.05) between the two groups.The difference of other indexes were not remarkable.In the condition of freedom raising,the cellulase was higher than that in captive caged rearing,but the difference of total protedytic enzyme,trypinase and pepsin was not significant between the two raising ways.

Key words: Gushi chicken, Carcass propeties, Body size, Digestive enzymes, Egg quality

中图分类号: 

• S831