Figure 4.

Box-and-whisker plots of the levels of (A) fatty acids, (B) peptides, and (C) nucleosides in the intestine of chickens fed an unsupplemented control diet (green) or a diet supplemented with magnolia bark extract (blue). The boxes represent the interquartile range (IQR) defined by the 25th and 75th percentiles. The horizontal line represents the median value. The cross represents the mean value. The upper whisker represents Q3 + (1.5 × IQR), while the lower whisker represents Q1 – (1.5 × IQR). Circles represent outliers.