作 者：
王思齐;饶友生;杨艳北;王樟凤;柴学文;张仁颠;马荆鄂
单 位：
南昌师范学院生物技术研究院/江西省地方鸡种遗传改良重点实验室
关键词：
康乐黄鸡;体重;生长曲线;Logistic模型;Von Bertalanffy模型;Gompertz模型;拟合
摘 要：
为了探索康乐黄鸡的生长发育规律，试验采用Logistic、Von Bertalanffy和Gompertz 3种非线性模型对524只康乐黄鸡母鸡和118只康乐黄鸡公鸡的体重进行了生长曲线拟合和分析，估算出康乐黄鸡初生和2,4,6,8,10,12,14,16周龄的体重，以及最大周增长、拐点体重、拐点周龄、绝对生长速率和相对生长速率，并将模型所得的估计值与实测值进行比较后构建生长曲线、相对生长速率曲线和绝对生长速率曲线，以拟合度(R~2)和残差平方和(E)为3种生长曲线模型的评价指标，探索最适拟合康乐黄鸡体重生长曲线的模型。结果表明：Von Bertalanffy和Gompertz生长曲线模型均能较好地拟合康乐黄鸡的生长曲线，其中公鸡R~2值分别为0.990和0.988,母鸡R~2值分别为0.996和0.994;公鸡E值分别为10 682.172和13 400.242,母鸡E值分别为3 527.695和4 924.375;Von Bertalanffy模型拟合的不同周龄体重结果更接近于实测体重数据，说明Von Bertalanffy模型是拟合康乐黄鸡生长曲线的最适合模型，拟合的公鸡生长曲线方程为Y=2 699.725×[1-0.75×exp(-0.066×t)]~3,拟合的母鸡生长曲线方程为Y=1 269.006×[1-0.753×exp(-0.119×t)]~3。
译 名：
Fitting and analysis of growth curve of Kangle yellow chickens
作 者：
WANG Siqi;RAO Yousheng;YANG Yanbei;WANG Zhangfeng;CHAI Xuewen;ZHANG Rendian;MA Jing'e;Institution of Biological Technology/Jiangxi Province Key Lab of Genetic Improvement of Indigenous Chicken Breeds,Nanchang Normal University;
关键词：
Kangle yellow chickens;;body weight;;growth curve;;Logistic model;;Von Bertalanffy model;;Gompertz model;;fitting
摘 要：
In order to investigate the growth and developmental regulation of Kangle yellow chickens, the body weight of 0-16 week 524 hens and 118 roosters were fitted and analyzed by Logistic, Von Bertalanffy and Gompertz nonlinear models. The birth, 2, 4, 6, 8, 10, 12, 14, and 16 weeks of age body weight, maximum weekly growth, inflection point weight, inflection point week age, absolute growth rate, and relative growth rate of Kangle Yellow Chickens by three growth curve models were estimated, and the estimated values obtained from the three growth curve models with the measured values and construct growth curves, relative growth rate curves, and absolute growth rate curves were compared.The fitting degree(R~2) and the sum of squared residuals(E) were used as estimated indicators for the three growth curve models to explore best fitting model for the growth curve of Kangle yellow chickens. The results showed that both Von Bertalanffy and Gompertz growth curve models could fit the growth curve of Kangle yellow chickens well, and the R~2 for males were 0.990 and 0.988,respectively, and the R~2 for females were 0.996 and 0.994, respectively. The E values fitted for males were 10 682.172 and 13 400.242, respectively. The E values fitted for females were 3 527.695 and 4 924.375, respectively. The weight results of different weeks of age fitted by Von Bertalanffy model were closer to the measured weight data. The fitted equation of cock growth curve was Y=2 699.725×(1-0.75×exp(-0.066×t))~3, while the fitted growth curve of females was Y=1 269.006×(1-0.753×exp(-0.119×t))~3.The results indicated that Von Bertalanffy model was the most suitable model to fit the growth curve of Kangle yellow chickens.
