不同养殖模式对三黄鸡生长发育和屠宰性能的影响

The Effects of Different Cultivation Patterns on the Growth and Slaughter Performance of Sanhuang Chickens

为了验证半野生散养状态对三黄鸡生长、器官发育和屠宰性能的影响,选择12日龄脱温三黄鸡,分别采用散养和精养,养至42日龄屠宰。结果表明:精养组肉鸡42日龄活重、褪毛重、半净膛、全净膛、体斜长、胸宽、胸深、龙骨长等指标都极显著高于散养组(P<0.01)。精养组42日龄心脏重、肝脏重、脾脏重、肌胃+腺胃重、腿肌重、爪重、翅膀重等指标也极显著高于散养组(P<0.01)。在指数测量中肌胃+腺胃指数、胸肌指数两组差异极显著(P<0.01),肝脏指数差异显著(P<0.05),其它指数差异均不显著(P>0.05)。

The purpose of this research is to test and verify the effects on organ growth and slaughter performance with scatter-fed cultivation pattern and cage-fed cultivation pattern. Twelve day-old Sanhuang chickens are fed until they are forty-two days of age and dissected without temperature protection.The results show that in the cage-fed group,the alive-weight, the weight without feathers,half-eviscerated weight,eviscerated weight,the length of body side length,breast diameter,chest depth,and the length of Wishbone type are significantly higher than those in the scatter-fed group（P 〈0.01 ）.The weight of the heart,liver,spleen,stomach, leg,claw and wing are also significantly higher than those in the free-range group （P 〈0.01）. However,only the index measurement of the stomach and pectoralis are significantly different （P 〈0.01）.The liver index is also significantly different （P 〈0.05）.