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Publication type: Journal Article
Document type: Full Paper

Year: 2015

Author(s): Raith, J; Kuchling, S; Schleicher, C; Schobesberger, H; Köfer, J

Title: Influence of porcine circovirus type 2 vaccination on the probability and severity of pneumonia detected postmortem.

Source: Vet Rec. 2015; 176(5):124

Authors Vetmeduni Vienna:

Köfer Josef
Raith Johannes
Schobesberger Hermann

Vetmed Research Units
Institute of Food Safety, Food Technology and Veterinary Public Health, Unit of Veterinary Public Health and Epidemiology

Project(s): Preventive Veterinary Medicine

To evaluate the influence of porcine circovirus type 2 vaccination (PCV-2) on the probability and severity of pneumonia, postmortem findings of 247,505 pigs slaughtered between 2008 and 2011 were analysed by applying a cumulative link mixed model. Three major effects could be observed: (1) PCV-2 vaccination significantly (P<0.01) reduced the odds (coefficient: -0.05) of postmortem findings of mild, moderate and severe pneumonia for vaccinated pigs. (2) Pigs from fattening farms were less likely (coefficient: -0.44; P<0.05) to exhibit signs of pneumonia at slaughter than pigs from farrow-to-finish farms. (3) When vaccinated, the odds of detecting postmortem signs showed an even more pronounced reduction (coefficient: -0.19; P<0.001) for pigs from fattening farms. Combining PCV-2 vaccination, farm type and interaction effects between these two factors, a pig vaccinated against PCV-2 from a fattening farm had only half the chance (OR 0.51) of pneumonia being detected at postmortem than a non-vaccinated pig from a farrow-to-finish farm. The study demonstrates the benefit of a vaccination programme against PCV-2 as an important tool to reduce the risk of postmortem pneumonia findings and the severity of pneumonia in pigs at slaughter.

Keywords Pubmed: Animals
Circoviridae Infections/prevention & control
Circoviridae Infections/veterinary*
Severity of Illness Index
Swine Diseases/diagnosis
Swine Diseases/prevention & control*
Swine Diseases/virology
Viral Vaccines*

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