This paper presents the results of a study on catalytic activity and selectivity nickel palladium catalysts in hydrogenation reactions nitro- acetylene compounds. It was shown that phenylacetylene depend nature modifying additives (Cu, Zn, Ti, Cr, Bi, Ti–Cu, Mn, Fe), based polymer metal complexes depends method their preparation. found for certain concentrations active phase (0.8 wt.%) potassiu...

The aim of this study was to investigate the effects of sodium humate (HNa), applied to feed or drinking water as a partial substitution for pharmacological doses of ZnO, on clinical, biochemical and haematological indicators of health status, oxidative stress and the serum fatty acid (FA) profile in weaned piglets. Weaned piglets (32) were allocated into four groups: Control = basal diet conta...