A previous trial (I) has shown that meal reduces the Salmonella prevalence and the degree of stomach changes as compared with pelleted feed. It was also found that coarsely ground feed tended to reduce the Salmonella problem compared with finely ground feed. The type of feed that reduced the Salmonella prevalence resulted in a substantially poorer feed conversion. There is a need to clarify what the feed industry can do to produce feed that reduces the risk of Salmonella problems and gastric changes and at the same time to clarify the effect on feed conversion. Thus, the object of the study was to clarify the effect of the pelleting process and the expansion of grain on the proportion of serological reagents against Salmonella and on gastric health and production result in finishing pigs.