Effects of metabiotic Bacillus subtilis for microbiocenosis formation in early-weaned piglets

Abstract

This paper discusses the results of research related to cultivation of the probiotic microorganism B. subtilis on a grain-based nutrient medium of naked oat (Avena nuda) and studies the possibility of using metabolites as a liquid dietary supplement to correct microbiocenosis gastrointestinal tract dis-orders in early-weaned piglets. The weight fraction of proteinogenic amino acids in the experimental probiotic suspensions was determined by means of capillary electrophoresis. The metabolic activity of Bacillus subtilis DSM-32424 strain was studied on both sprouted as well as non-sprouted naked oat (Avena nuda) ‘Nemchinovsky’ variety grain-based nutrient medium. It was proved that the maximum microbial count reached 4.9×107 CFU/cm3 on the 6th day of cultivation on the medium based on sprouted naked oat. The use of dietary supplement based on Bacillus subtilis DSM-32424 strain in amount of at least 1×109 CFU/pig had a positive impact in terms of the formation of microbiocenosis in animals at the time of transferring piglets to plant diet.

Keywords

• dietary supplement
• enterobacteriaceae
• metabiotics
• microbiocenosis
• nutrient medium
• piglets
• probiotics