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Positioning and number of nutritional levels in dose-response trials to estimate the optimal-level and the adjustment of the models Ciência Rural
Souza,Fernando Augusto de; Malheiros,Euclides Braga; Carneiro,Paulo Roberto Oliveira.
The aim of this research was to evaluate the influence of the number and position of nutrient levels used in dose-response trials in the estimation of the optimal-level (OL) and the goodness of fit on the models: quadratic polynomial (QP), exponential (EXP), linear response plateau (LRP) and quadratic response plateau (QRP). It was used data from dose-response trials realized in FCAV-Unesp Jaboticabal considering the homogeneity of variances and normal distribution. The fit of the models were evaluated considered the following statistics: adjusted coefficient of determination (R²adj), coefficient of variation (CV) and the sum of the squares of deviations (SSD).It was verified in QP and EXP models that small changes on the placement and distribution of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Regression models; Chicken nutrition; Dose-response trials; Linear response plateau; Quadratic response plateau.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000701204
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