不同性别黑番鸭生长曲线的拟合和分析

福建农业学报 ›› 2011, Vol. 26 ›› Issue (4): 541-544.

不同性别黑番鸭生长曲线的拟合和分析

朱志明¹, 黄种彬², 钟志新², 缪中纬¹, 陈晖¹, 郑嫩珠¹

1. 福建省农业科学院畜牧兽医研究所, 福建福州 350013;
2. 福建省石狮市水禽保种中心, 福建石狮 362700

收稿日期:2011-04-08 修回日期:2011-05-28 出版日期:2011-08-15 发布日期:2011-08-15
通讯作者: 陈晖(1949-),女,研究员,研究方向:家禽遗传育种(E-mail: chh5555@163.com) E-mail:chh5555@163.com
作者简介:朱志明(1979-),男,硕士,助理研究员,专业方向:畜禽遗传育种(E-mail: zzm10203@163.com)
基金资助:
福建省科技计划项目(2008N0112);现代农业产业技术体系(nycytx-45-06)

Analysis and Fitting of Growth Curve in Different Sexual Black Muscovy

ZHU Zhi-ming¹, HUANG Zhong-bin², ZHONG Zhi-xin², MIAO Zhong-wei¹, CHEN Hui¹, ZHENG Nen-zhu¹

1. Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China;
2. ShiShi Waterfowl Conservation Center, Shishi, Fujian 362700, China

Received:2011-04-08 Revised:2011-05-28 Online:2011-08-15 Published:2011-08-15

摘要/Abstract

摘要： 以黑番鸭为试验材料,测定了不同性别黑番鸭从初生到10周龄的体重,用Gompertz、Logistic、vonBertalanffy 3种非线性生长模型拟合其生长曲线,研究不同性别黑番鸭生长模式的差异。结果表明:公、母黑番鸭在4周龄前生长较为缓慢,4周龄后生长速度开始明显加快,在6～10周龄达到生长高峰。通过比较拟合度(R2)发现3种曲线模型拟合度均达到0.99以上,但Gompertz模型的拟合结果更接近于实际测量值,拟合效果最佳。进一步比较不同性别黑番鸭Gompertz模型拟合参数,结果发现公鸭和母鸭相比,有较高的初始体重、极限体重和拐点体重,但公鸭拐点周龄为5.3周,较母鸭的4.3周晚。公黑番鸭的Gompertz模型方程为:W=3111.4[exp-4.4482exp(-0.2802t)],母黑番鸭的Gompertz模型方程为W=2100.4[exp-4.1071exp(-0.3225t)]。

关键词: 黑番鸭, 生长曲线, 体重, 模型

Abstract: As the black Muscovy for experimental material,the early bodyweight of different sexual black Muscovy from 0 to 10 weeks old were measured,in order to investigate the growth model in this study,three kinds of nonlinear models of Gompertz,Logistic and von Bertalanffy were used to fit the growth curve respectively.The results showed that black Muscovy grew slowly before age of 4 weeks,the growth rate accelerated significantly after age of 4 weeks,and reached the growth peak at age of 6 to 10 weeks.Compared with goodness of fit(R²),the results showed the growth curve could be well fitted with these three models and the R2 was above 0.99,but the Gompertz model had well closed to the actual observed values.Further more,the fitting parameters of Gompertz model between genders were compared,and the male black Muscovy showed higher initial weight,maximum bodyweight,and inflection point weight than female black Muscovy.The inflection age of male was 5.3 weeks and the female was 4.3 weeks.The Gompertz model equation for male and female black muscovy was W=3111.4[exp-4.4482exp(-0.2802t)] and W=2100.4[exp-4.1071exp(-0.3225t)] respectively.This study would help to understand the growth model and development of different sexual black Muscovy,and would provide the scientific basis for rational use of resources,breeding germplasm and selection in black Muscovy.

Key words: Black Muscovy, growth curve, body weight, model

中图分类号:

S858

朱志明, 黄种彬, 钟志新, 缪中纬, 陈晖, 郑嫩珠. 不同性别黑番鸭生长曲线的拟合和分析[J]. 福建农业学报, 2011, 26(4): 541-544.

ZHU Zhi-ming, HUANG Zhong-bin, ZHONG Zhi-xin, MIAO Zhong-wei, CHEN Hui, ZHENG Nen-zhu. Analysis and Fitting of Growth Curve in Different Sexual Black Muscovy[J]. Fujian Journal of Agricultural Sciences, 2011, 26(4): 541-544.

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