EN
The examinations were performed on piglets (Polish indrace X Polish Large White X White Złotnicka) aging am 0 to 3 weeks. A total acidity and pepsin activity of mach content and the activity of alpha-amylase, lipase d trypsin in the content of duodenum, ileum and in ncreas were determined. Neither identical tendencies in e increase of the enzyme activity nor relationships tween the activity of the examined enzymes and a level a total acidity of stomach content were noted.