title: Influence of coccidiosis on Salmonella colonization in broiler chickens under floor-pen conditions.
abstract: The influence of coccidiosis on colonization of Salmonella typhimurium in broiler chickens under floor pen conditions was studied by semiquantitative methods. Chickens of two groups, unmedicated and medicated with nicarbazin (125 ppm via the feed), were exposed to three species of Eimeria (Eimeria tenella, Eimeria maxima, and Eimeria acervulina) at 2, 3, and 4 wk of age and given S. typhimurium in the feed 2 days later. Salmonella typhimurium was isolated most often (100%) from ceca of chickens exposed at 3 wk of age. Birds in the unmedicated group were positive for S. typhimurium at a higher rate than those in the medicated group. Salmonella typhimurium was detected in livers only in a few unmedicated birds.
authors.affiliation: Department of Veterinary Medicine, College of Agriculture, University of Osaka Prefecture, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Arakawa
authors.forename: T
authors.initials: T
authors.lastname: Fukata
authors.forename: E
authors.initials: E
authors.lastname: Baba
authors.forename: L R
authors.initials: LR
authors.lastname: McDougald
authors.forename: J S
authors.initials: JS
authors.lastname: Bailey
authors.forename: L C
authors.initials: LC
authors.lastname: Blankenship
mesh_terms: D000818:Animals; D002353:Carrier State / Q000382:microbiology / Q000662:veterinary*; D002432:Cecum / Q000382:microbiology; D002645:Chickens / Q000469:parasitology*; D003048:Coccidiosis / Q000150:complications / Q000188:drug therapy / Q000469:parasitology / Q000662:veterinary*; D015169:Colony Count, Microbial; D004539:Eimeria / Q000254:growth & development; D016786:Eimeria tenella / Q000254:growth & development; D006799:Housing, Animal; D007422:Intestines / Q000469:parasitology / Q000473:pathology; D008099:Liver / Q000382:microbiology; D009528:Nicarbazin / Q000627:therapeutic use; D011201:Poultry Diseases / Q000188:drug therapy / Q000382:microbiology / Q000469:parasitology; D012481:Salmonella Infections, Animal / Q000150:complications* / Q000382:microbiology; D012486:Salmonella typhimurium / Q000254:growth & development
chemical_list: D009528:Nicarbazin