Cleaning fails to beat a worm problem

摘要

In various countries, the number of pigs' livers condemned at the slaughterhouse because of worm damage is once again showing an increase. Almost all these condemnations involve the presence of white spots resulting from the migration of roundworm larvae through the liver tissue. It seems that many finishing pigs are still being affected, despite everything that is known about the biology of the ascarid roundworm and the availability of potent deworm-ing products.