摘要
为了揭示黄山黑鸡体重的生长发育规律,使用Gompertz、Logistic和von Bertalanffy 3种非线性生长曲线模型对黄山黑鸡0～20周龄体重进行了拟合分析.结果表明,3种数学模型对黄山黑鸡体重的拟合度较高,R^2均大于0.99,其中,Gompertz模型能更准确地拟合黄山黑鸡公鸡体重的生长规律（R^2=0.9991）.von Bertalanffy模型则能更准确地拟合黄山黑鸡母鸡体重的生长规律（R^2=-0.9982）;黄山黑鸡公母鸡的极限体重分别是1885.83和1503.54 g,公鸡体重的拐点周龄（9.071周）晚于母鸡的拐点周龄（7.528周）.在第2 ～ 20周龄期间,黄山黑鸡公鸡绝对生长速度高于母鸡,公鸡体重显著高于母鸡.
The aim of this study was to reveal the growth and development rules of Huangshan black chicken＇s body weight,and the growth curves of Huangshan black chicken from 0 to 20 weeks were analyzed and fitted with three kinds of nonlinear models （Gompertz,Logistic and von Bertalanffy）.The results showed that the growth curves of body weight could be fitted by three nonlinear curve models,and the fitness exceeded 0.99,Gompertz model was much better to fit growth cut-ves of the male＇ s body weight （R^2=-0.9991）,von Bertalanffy model was much better to fit the female＇ s body weight （R^2=-0.9982）.The estimated values of maximum body weight of adult cocks and hens were 1885.83 g and 1503.54 g,respectively.The inflexion point of age of cocks （9.071 week） was late than that of hens （7.528 week）.During the period of 2 to 20 week,absolute growth velocity curves and body weight of the male were higher than that of the female,respectively.
出处
《西南农业学报》
CSCD
北大核心
2014年第3期1295-1299,共5页
Southwest China Journal of Agricultural Sciences
基金
国家蛋鸡产业技术体系(CARS-41-K19)
安徽省科技攻关项目(1301032153)
关键词
黄山黑鸡
生长曲线
体重
数学模型
Huangshan black chicken
Growth curve
Body weight
Mathematical model
作者简介
李俊营（1980-）,男,河南南阳人,助理研究员,主要从事家禽遗传育种及生产技术研究,lijunying2007@163.com
