title: Occurrence of salmonellae in animal feed ingredients in Saudi Arabia.
abstract: Of 346 samples of animal feed ingredients (144 complete feed, 88 feed concentrate, 42 calcium carbonate, 30 meat meal, 29 fish meal, and 13 mixed meat and bone meal), 42 (12.13%) were contaminated with salmonellae. The rate of Salmonella contamination varied according to the nature of the feed sample. Seven (53.84%) of the mixed meat and bone meal, 14 (48.27%) of the fish meal, 12 (13.63%) of the feed concentrate, 7 (4.86%) of the complete feed, and 2 (4.76%) of the calcium carbonate samples contained salmonellae. The 49 Salmonella isolates represented 18 serotypes; the 5 most frequent serotypes in decreasing order were S lille, S new-haw, S livingstone, S kentucky, and S typhimurium. The 4 most common somatic serogroups encountered were C1, E2, B, and C3.
mesh_terms: D000821:Animal Feed / Q000009:adverse effects* / Q000032:analysis; D005506:Food Contamination; D005516:Food Microbiology; D012475:Salmonella / Q000302:isolation & purification*; D012529:Saudi Arabia