From: Clays as dietary supplements for swine: A review
Items
Level of clay (g/kg)
P - value
0
3
6
SE2
Linear
Quadratic
Dry matter
0.77b
0.82 a
0.77 b
0.009
0.91
<0.01
Nitrogen
0.76 b
0.79 a
0.74 b
0.006
0.05
Energy
0.81ab
0.83 a
0.78 b
0.013
0.13
0.04