Modelo de von Bertalanffy generalizado aplicado a curvas de crescimento animal / Generalized von Bertalanffy model applied to growth animal curves

AUTOR(ES)

Juliana Scapim

DATA DE PUBLICAÇÃO

2008

RESUMO

The objective of this work is to study the curve of growth in weight of several animaIs specimens, to establish standards of metabolism for animal class. The parameters of the non-linear generalized form of the von Bertalanffy mo deI applied to weight growth curves were adjusted to identify with ones describe better the growth of the animal on the areas of age-weight provides. We utilized on the study data of age and weight of 19 specimens, mammals, birds, amphibians, fishes, crustaceous; vermin s and insects. These adjusts were made through computational experiments, using as tool of suppàrt the program MATLAB. Once that the principal characteristic of the deterministic systems is the precision obtain by the solution and in dealing with models of animal growth, naturally imprecision information s make part of the modeling, compromising this precision, we opt by conclude the results with the sup . port of Fuzzy Sets Theory, with allow work with this kind of uncertainness in a reasonable way. The initial conjecture that should be one standard of metabolism for animal class was not verify, occurring, including, distinction between males and females of the same species, like the case of the turkey. Hypothetically, the lost of energy is related with the habits of each animal

ASSUNTO(S)

conjuntos difusos animais - crescimento fuzzy sets biomathematics biomatematica ajuste de curva growth animal curve fitting

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