The study has been conducted in order to find out what is the optimal level of Biomin IMBO that should be added to the fodder for piglets in Moldova. In order to achieve this aim, an experiment has been run on four groups of pigs at “Moldsuingibreed” – a scientific and productive enterprise which is engaged in growing pigs. The experimental results have indicated that the introduction of probiotic Biomin IMBO in forage have not affected greatly the live weight gain of the guinea piglets. The obtained results have also showed that the consumption unit of fodder has decreased significantly.