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Position: Home > Articles > Mathematic modeling on growth of Dehua black chicken Fujian Journal of Agricultural Sciences 2009,24 (5) 412-415

德化黑鸡生长曲线的拟合和分析

作  者:
朱志明;董晓宁;陈龙星;曾建政;陈晖;郑嫩珠;缪中纬
单  位:
福建省农业科学院畜牧兽医研究所;福建省德化县畜牧兽医站
关键词:
德化黑鸡;生长曲线;体重;模型
摘  要:
运用Gompertz,Logistic,von Bertalanffy 3种非线性模型对0~18周龄的德化黑鸡体重生长数据进行了分析和曲线拟合。结果表明:3种模型均能很好地模拟其生长曲线,拟合度(R~2)高,分别为0.999 8、0.998 7和0.999 6,其中Gompertz模型拟合效果最好。进一步对Gompertz模型拟合参数分析,结果表明德化黑鸡极限体重为1 754.7 g,拐点体重为815.22 g,拐点周龄为8.819周。
译  名:
Mathematic modeling on growth of Dehua black chicken
作  者:
ZHU Zhi-ming~1,DONG Xiao-ning~1,CHEN Long-xing~2,ZENG Jian-zheng~2,CHEN Hui~1, ZHENG Nen-zhu~1,MIAO Zhong-wei~1 (1.Institute of Animal Husbandry and Veterinary Medicine,Fujian Academy of Agricultural Sciences,Fuzhou,Fujian 350013,China;2.Station of Animal Husbandry and Veterinary,Dehua,Fujian 362500,China)
关键词:
Dehua black chicken;;growth curve;;body weight;;model
摘  要:
The growth curve of Dehua black chicken from 0 to 18 weeks was fitted with three nonlinear models.The correlation coefficients(R~2) of the chicken's growth data with the Gompertz,Logistic and von Bertalanffy models were 0.9998,0.9987,and 0.9996,respectively.Using the Gompertz model,which had the highest R~2,the maximum applicable adult body weight was found to be 1754.7g,the critical body weight,815.22g,and the critical age of the chicken,8.819 weeks.

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