A regression analysis of the period from 7 to 35 d of age showed that the substitution levels of canola meal for SBM significantly affected (P < 0.05) the daily weight gain and average weight of the birds. An increasing quadratic response was observed up to the level of 16.7% of inclusion of canola meal for daily weight gain and up to the level of 15.9% of canola meal forthe average weight of the birds; these responses both
decreased thereafter. It is, therefore, possible to predictthat every 1% of inclusion of canola meal produces a orresponding increase of 5.55 g in the weight of the
birds up to the inclusion level of 15.9%. No significant effect (P < 0.05) was found for feed consumption and feed conversion