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Pig Journal Volume: 66
Publication date: December 2011

Clinical Practice

REVIEW OF DIAGNOSTIC CARCASE SUBMISSIONS TO INVESTIGATE PORCINE REPRODUCTIVE DISEASES IN ENGLAND AND WALES (2004-2010)
D.F. TWOMEY

Abstract
Laboratory results were reviewed for porcine reproductive disease submissions over a seven year period (2004-2010) to the Veterinary Laboratories Agency in England and Wales. Nine hundred and thirty-five submissions were examined which included “carcase” (e.g. foetus, adult animal) or “non-carcase” (e.g. blood sample, vaginal swab) samples. Seasonal variation in submission numbers was noted,with a rise detected in the third and fourth quarters (July to December). Only diagnoses from carcase submissions, representing approximately 10% of total submissions,were included in the review because non-carcase submissions did not usually yield a specific diagnosis for the problem investigated. Sixty-six foetus and 20 adult carcase submissions yielded a definitive diagnosis. The following organisms were identified in foetal submissions: porcine parvovirus (20 cases), porcine reproductive and respiratory syndrome virus (13), Streptococcus species (11), Escherichia coli (10), Pasteurella species (5), Actinobacillus species (3),Actinomyces hyovaginalis (2), Arcanobacterium pyogenes (2), Arcobacter species (2), Aspergillus species (2), Leptospira species (2), Acholeplasma laidlawii (1), Bacillus licheniformis (1), Erysipelothrix rhusiopathiae (1), Salmonella London (1) and Staphylococcus hyicus (1). Diagnostic findings in adult carcases included metritis (11), orchitis/epididymitis (4), ovarian tumour (1), vaginal perforation (1), abscessation of male accessory sex glands (1), congenital penis shortening (1) and hydrocele with testicular degeneration (1).

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