• 中文核心期刊
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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.
Citation: 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.

Analysis and Fitting of Growth Curve in Different Sexual Black Muscovy

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  • Received Date: April 07, 2011
  • Revised Date: May 27, 2011
  • 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.
  • MIGNON G S, PILEST M, VARONA L, et al.Genetic analysis of growth curve parameters for male and female chickens resulting from selection on shape of growth curve[J]. Journal of Animal Science,2000, 78: 2512-2524.
    AKUPOGLU C, ATIL H.Comparison of growth curve models on broilers comparison of models[J].Online Journal of Biological Sciences,2001, 1(7):682-684.
    施寿荣,龚道清,王志跃. 螺鸭早期生长曲线的研究[J]. 黑龙江畜牧与兽医, 2005,(10):37-38.
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