Risk factors related to bacterial contamination by <i>Enterobacteriaceae</i> and fecal coliforms and the prevalence of <i>Salmonella spp.</i> in Algerian farms, slaughterhouses and butcheries: a two-year follow-up study

This study was conducted to investigate first the bacterial contamination by Enterobacteriaceae, fecal coliforms and prevalence of Salmonella spp. second identify main associated risk factors in Algerian farms, slaughterhouses butcheries during a two-years period. Thus, cross-sectional performed using simple random sampling method target 20 10 5 butcheries. A structured questionnaire further used assess hygienic status farms slaughterhouses. total 265 samples were collected from wall, floor, litter, food, water animals' composed mainly meat, neck skin liver. Samples walls floors, different sites analyzed evaluate overall hygiene for Total viable bacteria, Enterobacteriaceae counts Fecal counts. Furthermore, E.coli salmonella spp. identified all samples. The expressed as log10 CFU/g (mean ± SD) Aerobic Microbial Count, Enterobacteriaceae count around 4.71 1.1, 4.73 1.3 4.68 1.2 respectively. findings evidenced that 63.40% 18.49% highest rate poultry (70%), beef (64%) (74.54%) followed meat (60%) sheep (48%) while have lowest (33.84%). For found be (31.11%), (25.45%), (22%), (20%) (12%) (4.61%). multifactor effects microbial such animal density, litter scraping, manure storage, pest control, contact with other animals decontamination process. Overall, this trial indicated high which studies are needed determine potential order corrective effects.