TY - JOUR
T1 - Herd prevalence of Salmonella enterica infections in Danish slaughter pigs determined by microbiological testing
AU - Baggesen, Dorte Lau
AU - Wegener, Henrik Caspar
AU - Bager, Flemming
AU - Stege, H.
AU - Christensen, J.
PY - 1996
Y1 - 1996
N2 - As a part of a nationwide programme to survey and control salmonella in pig herds, a microbiological survey of 1363 pig herds was performed in Denmark. A total of 13 468 slaughter pigs were examined at slaughter by culture of 5 g of caecal contents. Overall, 30 different serotypes of Salmonella enterica were isolated from 832 pigs (6.2%). The predominant serotype was S. Typhimurium, comprising 536 (64.4%) of the isolates. Four hundred and forty-eight isolates of S. Typhimurium were examined by phage typing, resulting in detection of 17 different phage types (definitive types, DT) with DT12 being the most frequent (49.1%).
Salmonella enterica was found in 302 herds (22.2%), S. Typhimurium was found in 61.1% of these. 279 (23.1%) large herds (producing more than 2600 slaughter pigs per year) were found to be salmonella positive compared with 23 (14.7 %) small herds (annual production of 500 to 550 slaughter pigs). Practical constraints in the study design did not allow for a firm conclusion on the interplay among herd size, geographical location and occurrence of salmonella.
In 284 of 302 infected herds (94.0%) only one serotype was detected, Infections with two different serovars were seen in 18 herds (6.0%).
AB - As a part of a nationwide programme to survey and control salmonella in pig herds, a microbiological survey of 1363 pig herds was performed in Denmark. A total of 13 468 slaughter pigs were examined at slaughter by culture of 5 g of caecal contents. Overall, 30 different serotypes of Salmonella enterica were isolated from 832 pigs (6.2%). The predominant serotype was S. Typhimurium, comprising 536 (64.4%) of the isolates. Four hundred and forty-eight isolates of S. Typhimurium were examined by phage typing, resulting in detection of 17 different phage types (definitive types, DT) with DT12 being the most frequent (49.1%).
Salmonella enterica was found in 302 herds (22.2%), S. Typhimurium was found in 61.1% of these. 279 (23.1%) large herds (producing more than 2600 slaughter pigs per year) were found to be salmonella positive compared with 23 (14.7 %) small herds (annual production of 500 to 550 slaughter pigs). Practical constraints in the study design did not allow for a firm conclusion on the interplay among herd size, geographical location and occurrence of salmonella.
In 284 of 302 infected herds (94.0%) only one serotype was detected, Infections with two different serovars were seen in 18 herds (6.0%).
U2 - 10.1016/0167-5877(95)00563-3
DO - 10.1016/0167-5877(95)00563-3
M3 - Journal article
SN - 0167-5877
VL - 26
SP - 201
EP - 213
JO - Preventive Veterinary Medicine
JF - Preventive Veterinary Medicine
IS - 3-4
ER -