Arnold, Mirjam; Crienen, Annelies; Swam, Hanny; Berg, Stephan V; Jolie, Rika; Nathues, Heiko (2021). Correlation of Lawsonia intracellularis positivity in quantitative PCR and herd factors in European pig herds. Porcine health management, 7(1), p. 13. BioMed Central 10.1186/s40813-021-00192-4
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BACKGROUND
Lawsonia intracellularis is causing diarrhea, poor growth and sudden death in pigs. It can be found in most pig populations leading to large economic losses worldwide. Many potential risk factors for the occurrence of disease or seropositivity have been described. The current study therefore focused on herd characteristics in European countries associated with direct detection of the pathogen determined by quantitative polymerase chain reaction.
RESULTS
A median number of less than 30 nursery pigs per pen was correlated to less positive nursery pigs (p < 0.01) and generally less samples positive per herd (p < 0.05) as well as a lower median of genome equivalents determined per herd (p < 0.05). Routine use of zinc oxide at/ around weaning, which was mentioned by 41.0% of all farmers, was correlated to higher number of positive nursery pigs (p < 0.01) as well as higher median genome equivalents determined per herd (p < 0.05). Slatted flooring of more than 78.0% of the surface in nursery units was correlated to lower number of positive animals (p < 0.05) and a lower median of genome equivalents per herd (p < 0.05). A weight of more than 7.8 kg at weaning was correlated to a higher number of positive growing pigs (p < 0.05) as well as general higher number of positive samples/ herd (p < 0.01).
CONCLUSIONS
Weaning and subsequent accommodation of nursery pigs seem to be of particular importance in prevention of infection with Lawsonia intracellularis and the spread of the pathogen within the herd.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Swine Clinic 05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) |
UniBE Contributor: |
Arnold, Mirjam, Nathues, Heiko |
Subjects: |
500 Science > 590 Animals (Zoology) 600 Technology > 610 Medicine & health 600 Technology > 630 Agriculture |
ISSN: |
2055-5660 |
Publisher: |
BioMed Central |
Language: |
English |
Submitter: |
Nathalie Viviane Zollinger |
Date Deposited: |
16 Feb 2022 16:42 |
Last Modified: |
05 Dec 2022 16:06 |
Publisher DOI: |
10.1186/s40813-021-00192-4 |
PubMed ID: |
33482877 |
Uncontrolled Keywords: |
Control Europe Porcine proliferative enteropathy Risk factor Swine |
BORIS DOI: |
10.48350/165055 |
URI: |
https://boris.unibe.ch/id/eprint/165055 |
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