Table 2 Semi-quantitative mineralogical composition and chemical microanalysis of the natural zeolite, which was added in the diet

SiO2

65-71.3

Al2O3

11.5-13.1

Ca O

2,7-5,2

K2O

2,2-3,4

Fe2O3

0,7-1,9

Mg O

0,6-1,2

Na2O

0,2-1,3

TiO2

0,1-0,3

Mineralogical Component

% WT

Clinoptilolite

84

Cristobalite

8

Feldspar

4

Illite

4

Quartz

Traces

Carbonated minerals

< 0,5