摘要
以“京海黄鸡1号”配套系父母代母鸡18～66周龄产蛋率和累计产蛋数变化规律为研究对象,探索其产蛋率与累计产蛋数拟合曲线。产蛋率采用伍德模型、分室模型与杨宁模型,累计产蛋数采用Logistic模型、Gompertz模型和Von Bertalanffy模型,对产蛋率及累计产蛋数（HH）的估计值与实际值进行比较。结果表明：伍德模型、分室模型与杨宁模型的产蛋率曲线拟合度分别为R2=0.649、R2=0.916、R2=0.955;Logistic模型、Gompertz模型和Von Bertalanffy模型的累计产蛋数曲线拟合度（R2）都在0.98以上。与实际生产数据比较发现,杨宁模型和Von Bertalanffy模型曲线拟合效果最佳。在实际生产中可以利用它们对该配套系产蛋率和累计产蛋数变化规律进行估计与预测,为该配套系育种以及管理提供参考。
Laying records for parents of Jinghai yellow chicken lines I at 18 to 66 weeks of age were used for curve fitting comparison and analysis. Three models were employed to fitting the laying rate curves （Wood model,McMillan model and Yang-Ning model）and accumulative egg production （Gompertz,Logistic,Von Bertalanffy）,respectively, and the estimated values were compared with the observations. The results showed that R2 of McMillan,Wood and Yang-Ning model were： 0.649,0.916 and 0.955,respectively. All R2 values of Logistic, Gompertz and Von Bertalanffy models for accumulative egg production were higher than 0.98. Comparison between fitted value and real data,we found that Yang-Ning model and the Von Bertalanffy model were fittest best. Those results indicated that Yang-Ning model and Von Bertalanffy model could be used for predicting the laying rule of parents of ＂Jinghai yellow chicken lines I ＂.
出处
《中国家禽》
北大核心
2015年第18期9-13,共5页
China Poultry
