An elaboration of data from the slaughterhouse in Český Brod – Veterinary Hygiene Centre (VHC) from findings made during veterinary inspection following the slaughter of 851 911 pigs over the course of five years was done in this paper. Intravital findings on lungs and other organs, their development on the farm over the years and comparison of supplier farms was included. Large producers of pigs improve and stabilise the state of health of pigs in dependence on medication administered. Regular inspections, checks on medication administered and monitoring of heterogeneous substances and zoonoses are all part of the work of the VHC.