Salmonella in pigs on farms feeding pellets and on farms feeding meal.
D000821:Animal Feed; D000818:Animals; D005243:Feces / Q000382:microbiology; D005516:Food Microbiology; D009426:Netherlands; D012475:Salmonella / Q000302:isolation & purification*; D012481:Salmonella Infections, Animal / Q000209:etiology / Q000517:prevention & control; D013552:Swine; D013553:Swine Diseases / Q000209:etiology / Q000517:prevention & control