Detection of Lawsonia intracellularis, Serpulina hyodysenteriae, weakly beta-haemolytic intestinal spirochaetes, Salmonella enterica, and haemolytic Escherichia coli from swine herds with and without diarrhoea among growing pigs
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Detection of Lawsonia intracellularis, Serpulina hyodysenteriae, weakly beta-haemolytic intestinal spirochaetes, Salmonella enterica, and haemolytic Escherichia coli from swine herds with and without diarrhoea among growing pigs. / Møller, Kristian; Jensen, Tim K.; Jorsal, Sven E.; Leser, Thomas D.; Carstensen, Bendix.
In: Veterinary Microbiology, Vol. 62, No. 1, 30.04.1998, p. 59-72.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Detection of Lawsonia intracellularis, Serpulina hyodysenteriae, weakly beta-haemolytic intestinal spirochaetes, Salmonella enterica, and haemolytic Escherichia coli from swine herds with and without diarrhoea among growing pigs
AU - Møller, Kristian
AU - Jensen, Tim K.
AU - Jorsal, Sven E.
AU - Leser, Thomas D.
AU - Carstensen, Bendix
N1 - Funding Information: This work was supported by the Research Secretariat of the Ministry of Food, Agriculture and Fisheries, project number SUN93-3. The authors thank P.H. Andersen, L.T.M. Nguyen and S.M. Jensen for excellent technical assistance.
PY - 1998/4/30
Y1 - 1998/4/30
N2 - A polymerase chain reaction (PCR) was optimized to detect Lawsonia intracellularis in faeces from naturally infected pigs. By combining a boiling procedure to extract DNA and a nested PCR procedure, a detection limit at 2x 102 bacterial cells per gram of faeces was achieved. The optimized PCR was used together with conventional culture techniques to detect Serpulina hyodysenteriae, weakly beta-haemolytic intestinal spirochaetes (WBHIS), Salmonella enterica, and haemolytic Escherichia coli, in a case control study to examine selected risk factors for the development of diarrhoea in growing pigs. Herds with diarrhoea were selected as cases and randomly chosen herds without diarrhoea were chosen as controls. Infection with L. intracellularis significantly enhanced the chance of diarrhoea. S. hyodysenteriae, WBHIS group IV (Serpulina pilosicoli), and S. enterica were isolated only from case herds which indicate that these species may influence the development of diarrhoea. In addition, herd-type had a significant impact, that is specific pathogen-free herds showed an odds ratio at 0.2 relative to conventional herds for the development of diarrhoea.
AB - A polymerase chain reaction (PCR) was optimized to detect Lawsonia intracellularis in faeces from naturally infected pigs. By combining a boiling procedure to extract DNA and a nested PCR procedure, a detection limit at 2x 102 bacterial cells per gram of faeces was achieved. The optimized PCR was used together with conventional culture techniques to detect Serpulina hyodysenteriae, weakly beta-haemolytic intestinal spirochaetes (WBHIS), Salmonella enterica, and haemolytic Escherichia coli, in a case control study to examine selected risk factors for the development of diarrhoea in growing pigs. Herds with diarrhoea were selected as cases and randomly chosen herds without diarrhoea were chosen as controls. Infection with L. intracellularis significantly enhanced the chance of diarrhoea. S. hyodysenteriae, WBHIS group IV (Serpulina pilosicoli), and S. enterica were isolated only from case herds which indicate that these species may influence the development of diarrhoea. In addition, herd-type had a significant impact, that is specific pathogen-free herds showed an odds ratio at 0.2 relative to conventional herds for the development of diarrhoea.
KW - Case control study
KW - Pig-bacteria
KW - Proliferative enteropathy
KW - Serpulina sp.
UR - http://www.scopus.com/inward/record.url?scp=0032580263&partnerID=8YFLogxK
U2 - 10.1016/S0378-1135(98)00199-0
DO - 10.1016/S0378-1135(98)00199-0
M3 - Journal article
C2 - 9659692
AN - SCOPUS:0032580263
VL - 62
SP - 59
EP - 72
JO - Veterinary Microbiology
JF - Veterinary Microbiology
SN - 0378-1135
IS - 1
ER -
ID: 339895933