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Title: Estimate of the weight of japanese quail eggs through fuzzy sets theory
Other Titles: Estimativa do peso dos ovos de codornas japonesas por meio da teoria dos conjuntos fuzzy
Keywords: Quail breeding
Fuzzy system
Eggs weight
Sistema fuzzy
Peso de ovos
Issue Date: 2012
Publisher: Universidade Federal de Lavras
Citation: CASTRO, J. de O. et al. Estimate of the weight of japanese quail eggs through fuzzy sets theory. Ciência e Agrotecnologia, Lavras, v. 36, n. 1, p. 108-116, jan./fev. 2012.
Abstract: 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 (tdb, ° 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 tdb and RH provided low values for absolute deviation and percentage error, allows a realistic estimate of the weight of eggs in different environmental conditions.
Appears in Collections:Ciência e Agrotecnologia
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