Figure 1From: Reduced use of antimicrobials after vaccination of pigs against porcine proliferative enteropathy in a Danish SPF herdStudy design. Principle of inclusion of pigs in a study based on a modified parallel group design from a herd, which weaned 1000 pigs every 3rd week. The study compares pigs vaccinated against proliferative enteropathy (PE) caused by Lawsonia intracellularis with non-vaccinated pigs.Back to article page