Organic acids in combined forages for growing pigs

The purpose of this paper is to determine the effect of repla- cement of nutritive antibiotics in compound feed for starter pigs with acidifier Acid Lac as growth promoters. Acid Lac is a new generation acidifier a combination of appropriately selected organic acids - Fumaric, Propionic, Citric, Formic and Lactic acids, with pronounced anti-bacterial effect. Two experiments were carried out with total of 126 growing pigs from 6 to 20kg live weight to determine the effect of organic acids as growth promo- ters. The results of these experiments show that acidifying of feed for growing pigs with product Acid Lac in doses 0.3 and/or 0.5 percent, improves the average daily gain from 7 to 9 per cent, and better feed efficiency from 8 to 13 percent (P<0.05), decrease the number of pathogenic and relative-pathogenic microorganisms, compared to pigs with or without nutritive antibiotics Flavophospholipol in combined feed. Under the present investigation might be concluded that organic acids could be successfully used as growth stimulators, replacing nutritive antibiotics in pig diets.