Differences in mean values (±SE) of mineral, crude protein and ash content in each plant category (herbaceous and shrubs/trees).

Bold values are below the deficiency level, and values in italics are above the tolerance limits (only sulphur).
a Significant differences between mean values at 0.1, 0.05, and 0.01 are indicated by †, * and ** respectively.
b Based on [19,35].
c Unknown deficiency levels.
d Maximum tolerance is only known for rats [54].
Differences in mean values (±SE) of mineral, crude protein and ash content in each plant category (herbaceous and shrubs/trees).