| Microorganism |  |  |  | 
  
    | Antimicrobial |  |  | Reference | 
            
			        
			            | Lawsonia intracellularis (LR189/5/83 + Extracellular + UK + 1983) | - | - | 0.125 - ? | Valnemulin  | 590 | 
                
			        
			            | Lawsonia intracellularis (LR189/5/83 + Extracellular + UK + 1983) | - | - | 1 - ? | Carbadox  | 590 | 
                
			        
			            | Lawsonia intracellularis (LR189/5/83 + Extracellular + UK + 1983) | - | - | 4 - ? | Tiamulin (Tiamuline, Tiamutilin)  | 590 | 
                
			        
			            | Lawsonia intracellularis (LR189/5/83 + Extracellular + UK + 1983) | - | - | 16 - ? | Tylosin  | 590 | 
                
			        
			            | Lawsonia intracellularis (LR189/5/83 + Extracellular + UK + 1983) | - | - | 64 - ? | Chlortetracycline  | 590 | 
                
			        
			            | Lawsonia intracellularis (LR189/5/83 + Extracellular + UK + 1983) | - | - | >128 - ? | Lincomycin (Lincocin)  | 590 |