贵州兴义矮脚鸡与矮脚黄鸡早期生长及屠宰性能的比较

Study on the Early Growth and Dressed Characters in Bantam Chicken

试验对贵州兴义矮脚鸡与矮脚黄鸡的早期生长发育规律及屠宰性能进行了比较研究。结果表明 :兴义矮脚鸡初生及 2周龄时体重显著低于矮脚黄鸡 (p <0 .0 5 ) ,而在 10～ 12周龄后显著高于矮脚黄鸡 (p <0 .0 5 ) ;胫长在初生到 2周龄时极显著低于矮脚黄鸡 (p<0 .0 1) ,在 10、12周龄时极显著高于矮脚黄鸡 (p <0 .0 1) ,12周龄胫长分别为 6 .5 1cm和 5 .79cm。兴义矮脚鸡的屠宰率显著高于矮脚黄鸡 (p <0 .0 5 ) ,但它的胸肌率极显著低于矮脚黄鸡 (p <0 .0 1) ,表明兴义矮脚鸡产肉性能不及矮脚黄鸡。兴义矮脚鸡和矮脚黄鸡 0～ 12周龄全期的料肉比分别为 3.34与 3.71,表明前者具有较高的饲料报酬 ,值得进一步开发和利用。

The comparative study on the early growth and dressed characters of two strains:Xingyi bantam and Yellow bantam was done in this study.The results show as follows:Body weight (BW)and tibia length(TL) in Xingyi bantam are both lower significantly at 1 and 2 weeks and both higher significantly at 10 and 12 weeks than those in Yellow bantam (BW,p<(0.05);TL,p<0.01).TL in Xingyi bantam and Yellow bantam is 6.51cm and 5.79cm respectively at 12 weeks. Xingyi bantam contains higher dressing percentage (p<0.05),but its percentage of breast muscle is significantly lower than that of Yellow bantam (p<0.01).The result shows that Yellow bantam has excellent meat usage character. The feed/weight rate of Xingyi bantam and Yellow bantam is 3.34 and 3.71 respectively,this shows Xingyi bantam is worthy of developing.