Successful results of earlier studies on testing the immune-modulating and anti-microbial properties of 1,2,4-triasole derivative as well as benefitial application of natural bio-stimulators in animal's prophylaxis and treatment inspired us to undertake further investigations. The aim of the present study was to evaluate and compare the prophylaxis effects of two natural immune-modulating agents, garlic (Allium sativum) extract and Echinovit C preparation and synthetic derivative of 1,2,4-triasole on non-specific immunity indices in slaughter turkey-hens. The results obtained suggest that the strongest stimulatory effect is exerted by garlic followed by 1,2,4-triasole derivative and Echinacea juice. Immune-modulating action of the substances applied was manifested by an increase in cellular immune parameters: the percentage of phagocyting cells, NBT-positive granulocytes and lysozyme level.
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