title: An approach to identifying and maintaining salmonella-free chickens.
mesh_terms: D000818:Animals; D001431:Bacteriological Techniques; D002645:Chickens; D005856:Germ-Free Life; D008722:Methods; D011201:Poultry Diseases / Q000175:diagnosis* / Q000517:prevention & control; D012478:Salmonella Food Poisoning / Q000517:prevention & control / Q000662:veterinary; D012481:Salmonella Infections, Animal / Q000175:diagnosis* / Q000517:prevention & control; D012499:Sanitation