CHANGES IN MICROCENOSIS OF THE INTESTINE OF BROILER CHICKENS AS INFLUENCED BY LACTIC ACID SUPPLEMENT

Abstract

There was evaluated the effectiveness of lactic acid supplement when introduced into activated feed diets for broiler chickens. There was determined the quantitative and qualitative composition of the feed sample’s microbiocenosis as well as after-slaughter microcenosis of the blind intestinal processes in a bird at 42 days of age. There were investigated the following feed samples: pure lactic acid supplement (LAS); LAS diluted with distilled water to 0.2%; LAS added to feed; and pelleted LAS. There are given results of the microcenosis of the blind intestinal processes in chickens, which were fed with diets with different LAS percentage. It has been found that pelleted LAS keep their wholesome qualities much longer. Pelleting and drying improve resistance of feed mixtures to mold fungi and saprogenic microflora. Processing of feed mixtures in such a way makes it possible to prolong storage up to 15 days, thereby allows preparing the sufficient amount of feeds before next feeding. It has been proved that consumption of LAS with activated high-enzymatic feed in pellets ten times increases the content of lactic acid bacteria in the blind intestinal processes of broiler chickens, the number of lactose-negative coliform bacilli reducing 17 times.