A study on the severity and relevance of porcine circovirus type 2 infections in Dutch fattening pigs with respiratory diseases

Veterinary Microbiology
G J WellenbergA L W de Gee

Abstract

This study was set up to get more insights in the severity and relevance of porcine circovirus type 2 (PCV2) infections in Dutch fattening farms in an endemic PCV2-situation with no clinical signs of post-weaning multisystemic wasting syndrome (PMWS). In part A of the study, in total 29 commercial fattening farms with varying percentages of pneumonia and pleurisy at slaughter were examined. Blood samples were collected at random by cross-sectional sampling; 10 in the age of 10-12 weeks, 10 at the age of 16 weeks and 10 blood samples at the end of the finishing period (20-22 weeks of age). Serum samples were examined for the presence of PCV2 IgM and IgG antibodies and for antibodies against other porcine lung pathogens. In part B, 8 "high" and 8 "low" herds were selected. The 8 "high" herds were defined as herds having high percentages of lung lesions (pneumonia) at slaughter, and the 8 "low" herds had low percentages of pneumonia at slaughter. For both the "high" and "low" herds, 3 pigs showing signs of respiratory distress were selected for necropsy (n=48). Lung tissue samples were examined post-mortem for macroscopic and histopathological lesions, and for the presence of bacteria and viruses. The results of part A showed that...Continue Reading

References

Jan 27, 2004·Veterinary Microbiology·John C S Harding
Jun 16, 2004·Research in Veterinary Science·G J WellenbergA R W Elbers
Aug 4, 2004·Veterinary Microbiology·Christoph R DubossonPeter Kuhnert
Nov 14, 2007·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Tanja OpriessnigPatrick G Halbur

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Citations

Jan 1, 2013·Annual Review of Animal Biosciences·Makoto Ozawa, Yoshihiro Kawaoka
Jul 25, 2020·Translational Animal Science·Jordan T GebhardtSteve C Henry
Mar 23, 2021·Australian Veterinary Journal·C TurniT S Barnes
May 23, 2021·Veterinary Medicine and Science·Weidong YueJunping He
Jun 3, 2021·Animals : an Open Access Journal From MDPI·Johannes KlingerAnnemarie Käsbohrer

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