2014•Zhongguo yangtu zazhiRequires access

The Growth Development of Rex Rabbit and Growth Curve Fitting

Cao Lian

Abstract

By means of Logistic non-linear growth model for animals, we fitted and analyzed mean weight from birth to 6-month in rex rabbit, and the results are as follows:(1)According to the principles of Logistic equation of growth curve, we determined the parameters of rex rabbit growth curve equation: a = 23.08, b=1.39,k=2 718.65, after that, the growth curve equation of rex rabbit is established: y =2718.65(/ 1+23.08 e-1.39x(P0.05);(2)Logistic regression curve equation can be a good fit for rex rabbit growth process. The degree of fitting of logistic regression curve equation reached 0.98, and its inflection point of growth was 2.81 month. The inflection point of rex rabbit weight was 1 359.33 g.

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Key concepts: Inflection point, Growth curve (statistics), Logistic function, Logistic regression, Mathematics, Gompertz function, Curve fitting, Rabbit (cipher)