Przemysl Chemiczny, Vol.91, No.5, 1068-1070, 2012
Biological feed additives with microelements. The test production for the assessment of utilitarian properties in zootechnical studies
Cr3+, Cu2+, Fe2+ and Zn2+ ions were adsorbed from their aq. soln. on soya grind in a column reactor to prep. microelements-contg. feed supplements for laying hens. A substantial increase in the content of microelements was achieved.