Distribution of Salmonella in swine herds in Québec.

摘要: Five porcine finishing units, previously identified as contaminated by Salmonella, were sampled to identify possible sources of contamination and study the distribution Salmonella within herds. A total 208 environmental samples taken 87 (42%) found spp. was recovered from several types samples. Among these, fecal material pens, building environment such doors, floors, ventilation dust farm accessories most often positive. Some flies rodents also Two units part an integrated production system prevalence at different steps facilities studied. Forty-one farms a 1923 faecal in randomly selected pens analysed. One hundred fifty-one (7.9%) positive for sampled, 70.7% (29/41) isolation Salmonella. The levels unevenly contaminated. Replacement sow (15.9%) unit gilts (21.9%) levels. Ten serotypes (n = 132) pyramid with predominance Derby (37.1%) Typhimurium (34.1%). Pulse Field Gel Electrophoresis analysis various isolates Typhimurium, Anatum showed no variation genetic profiles, each serotype, suggesting vertical throughout steps.