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Vaccination
Management
Disease Information
A PMWS update (Jake Waddilove)
ABOUT PMWS & PDNS
National Pork Board PMWS Fact Sheet
About PDNS (Jake Waddilive)
CEI Emerging Disease Notices: PMWS / PDNS
Conference and meetings archive
Case Histories
Yorkshire Farm, UK - Mike Muirhead - Final Update, June 2002
Mike Muirhead's case history of a Yorkshire farm with PMWS and PDNS.
East Anglia Farm, UK - Philip Richardson
This paper charts the course and effects of the disease on a single herd as well as highlighting the economic impact.
Photographs
Clinical signs
Photos of the clinical signs that are seen generally in pigs with PMWS and PDNS. Includes skin lesions, enlarged lymph glands, wasting and dead pigs.
Post mortem (1)
Photos of the signs that are seen in post-mortem samples of pigs with PMWS and PDNS. Includes interstitial pneumonia, secondary bacterial infection, enlarged lymph nodes, oedema and intra cytoplasmic inclusions
Post mortem (2)
More Photos of the signs that are seen in post-mortem samples of pigs with PMWS and PDNS.


PMWS Research Archives

Published Tuesday, February 01, 2011: Pig Journal Volume: 64
Weaning Weight Improvements Following PCV2 Sow Vaccination
N. BRONS, R. NETO, V. THIAS, F. JOISEL, S. LONGO
Exposure to Porcine Circovirus type 2 (PCV2) occurs very early in the life of a pig andmay compromise the pig’s ability to respond to infectious agents (viral and bacterial) when exposed to PCV2 without the presence of protectivematernally derived immunity.

The transmission and persistence ofmaternal antibodies following colostrumintake fromCircovac® vaccinated sows by their progeny has been demonstrated, conferring protection against PCV2, subsequently reducing clinical signs, lymphoid tissue lesions and reduced viral load.

The vaccination of sows with an inactivated PCV2 sow vaccine has been reported to improve performance andmortality rates. To evaluate the impact of PCV2 sow vaccination on the piglets weaning weights, those piglets born fromboth non-vaccinated and vaccinated sowswereweighed atweaning and the data produced by these two groupswas statistically analysed.

A significant improvement in themean weaning weight of 0.93kg on the progeny of PCV2 vaccinated sows was observed, and the results are in agreement with previous reports.Weight at weaning influences the post-weaning performance,with heavier pigs at weaning performing better fromweaning to slaughter.

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