Estimate of the weight of japanese quail eggs through fuzzy sets theory

Ciência e Agrotecnologia

Jaqueline De Oliveira Castro²  Alessandro Vieira Veloso¹  Tadayuki Yanagi Junior¹  Edison José Fassani¹  Leonardo Schiassi¹  Alessandro Torres Campos¹ 

[1] ,Universidade Federal de LavrasLavras MG ,Brasil

关键词: Quail breeding;    fuzzy system;    eggs weight;    Coturnicultura;    sistema fuzzy;    peso de ovos;   

DOI  :  10.1590/S1413-70542012000100014

来源: SciELO

【 摘 要 】

Quail breeding is a viable alternative for animal production and due to its low investment, fast return of invested capital, use of small areas and creation of jobs has aroused much interest in Brazil. The aim of this study was to develop a model based on fuzzy set theory to predict the weight of eggs from Japanese quails. The proposed fuzzy model was based on data from field measurement experiments, as well as from literature referring to the influence of environment over the weight of eggs. To develop the fuzzy system, air dry-bulb temperature (t db, ° C) and relative air humidity (RH, %) were defined as input variables and trapezoidal and triangular membership functions were used, respectively. The absolute deviation between the values for observed egg weight and egg weight estimated by the fuzzy system, varied between 0.01 g and 0.32 g, and the average deviation was 0.14 g. The average error found was 2.33%, and the determination coefficient (R²) was equal to 0.668. The fuzzy system developed to estimate the weight of Japanese quail eggs, based on the t db and RH provided low values for absolute deviation and percentage error, allows a realistic estimate of the weight of eggs in different environmental conditions.

【 授权许可】

CC BY   
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