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Fig. 5. Mean values of gastric pH (A) and motility (B) over the study period of
fasting for incubating birds (115) and over the days after feeding for
control birds (IVII). Values in the same figure with different
superscripts are significantly different (P<0.05). Values are
means ± S.D. As the required conditions for
applying a parametric procedure were not fulfilled, comparisons among birds
were performed using a KruskalWallis one-way ANOVA on ranks.