Abstract
The article presents the research results of studying the bifidogenic feed additive «Lactu-Super» effect on economically beneficial and interior indicators of pigs during fattening period. It was found that feed with the studied feed additive to the experimental animals increased natural resistance level and immunological status of their organism, which indicates metabolic processes intensification. Thus, blood serum bacteriological activity in these animals was 47,53 %, blood serum lysozyme activity was 41,6 %, which is higher than corresponding parameters in their peers by 23,1 % (P > 0,999) and 39,5 % (P > 0,999). The experimental group animals also showed a moderate increase in phagocytic activity and phagocytic number, which indicates an increase in the overall resistance of their body to all kinds of adverse environmental factors. The results obtained indicate the new feed additive «Lactu-Super» use effectiveness in terms of live weight gain increasing and ensuring pigs resistance to negative stress factors in conditions of intensive cultivation technology. The data on body's resistance can be used to improving the production technology of competitive pig farming products.
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