信宜怀乡鸡C品系第3世代产蛋率和累计产蛋数曲线拟合分析

发布时间：2018-02-16 05:25

本文关键词： 信宜怀乡鸡产蛋率累计产蛋数曲线拟合　出处：《南方农业学报》2017年01期 　论文类型：期刊论文

【摘要】：【目的】探讨信宜怀乡鸡C品系(颈部有圈浅黄色羽毛)第3世代产蛋率和产蛋量的变化规律,为提高怀乡鸡产蛋性能提供科学参考。【方法】统计信宜怀乡鸡C品系第3世代19~52周龄的产蛋率和累计产蛋数,采用伍德、杨宁、分室和三次方程4种模型对产蛋率进行拟合分析,采用Logistic、Gompertz和Von Bertalanffy模型对累计产蛋数进行拟合分析,计算各模型的参数值和拟合度(R2)。【结果】杨宁模型R2最高(0.988),其次是分室模型(0.976),伍德模型和三次方程R2稍低,分别为0.833和0.733;Logistic、Gompertz和Von Bertalanffy 3种累计产蛋数模型R2分别为0.988、0.995和0.998;杨宁模型的最高产蛋率为73.85%,与实际观测值(73.66%)最接近;Von Bertalanffy模型的极限产蛋数为128.96,相对于Logistic和Gompertz模型(分别为125.56和127.88),与实际观测值(131.62)最接近。【结论】杨宁模型和Von Bertalanffy模型分别对信宜怀乡鸡C品系第3世代产蛋率和累计产蛋数拟合效果最佳,可用于信宜怀乡鸡产蛋规律的估计和预测。
[Abstract]:[objective] to study the variation of egg production rate and egg quantity in the 3rd generation of Xinyi Huai Xiang chicken strain C (with yellowish yellow feathers on neck). In order to provide scientific reference for improving laying performance of Huai Xiang chicken, [methods] the egg laying rate and accumulative egg number of the third generation of C strain C of Xinyi County were analyzed by using Wood and Yang Ning. Four models of compartment and cubic equation were used to fit and analyze the egg production rate, and the logistic Gompertz and Von Bertalanffy models were used to analyze the total number of eggs laid. [results] the maximum R2 of Yang Ning model was 0.988, followed by compartment model 0.976, Wood model and cubic equation R2 slightly lower. The maximum egg laying rate of Yang Ning model is 73.85, which is close to that of Von Bertalanffy model (128.96), compared with Logistic model and Gompertz model (respectively), the maximum egg-laying rate of Yang Ning model is 73.85, and that of Von Bertalanffy model is 0.833 and 0.733, respectively, and that of Von Bertalanffy model is 0.98 8 and 0.998 8, respectively. (respectively) the maximum egg-laying rate of Yang Ning model is 73.85, which is close to the actual observation value (73.66), compared with Logistic and Gompertz model (respectively), the maximum number of eggs laid is 128.96. [conclusion] Yang Ning model and Von Bertalanffy model have the best fitting effect on egg production rate and accumulative egg number of the third generation of Xinyi Huai Xiang chicken strain C, respectively, for 125.56 and 127.88, which are close to the actual observation value (131.62). [conclusion] Yang Ning model and Von Bertalanffy model are the best fitting results for the third generation of Xinyi Huai Xiang chicken strain C, respectively. It can be used to estimate and predict the laying rule of Xinyi Huai Xiang chicken.
【作者单位】：广东海洋大学动科系;广东盈富农业有限公司;
【基金】：广东省科技计划项目(2012A020603013) 广东海洋大学基金项目(Q14259)
【分类号】：S831.2

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