Document Detail

Prevalence of and carcass condemnation from maedi-visna, paratuberculosis and caseous lymphadenitis in culled sheep from Quebec, Canada.
MedLine Citation:
PMID:  12719018     Owner:  NLM     Status:  MEDLINE    
We determined the prevalence of lung and mammary gland lesions associated with maedi-visna (MV) infection, the prevalence of paratuberculosis (PTB), and the prevalence and lesions distribution of caseous lymphadenitis (CL) in culled sheep. Total of 451 ewes and 34 rams were selected randomly from two slaughterhouses in Quebec, Canada. MV serostatus was determined by recombinant ELISA test. PTB diagnosis was based on characteristic histological lesions in the terminal ileum, ileocecal lymph node and/or ileocecal valve and CL by gross detection of abscesses and isolation of Corynebacterium pseudotuberculosis. Seroprevalence of MV was 44% (95% CI: 40, 48). Seropositivity increased with age and was higher in ewes than in rams. The percentages of lung and mammary gland lesions in seropositive sheep were 14 and 40%, respectively, but mammary gland lesions lack specificity. The prevalence of PTB was 3% (95% CI: 2, 5). PTB increased with age and was lower among sheep with abscesses. The prevalence of CL was >/=21% (95% CI: 17, 24). The most-prevalent site of caseous lymphadenitis lesions was the thoracic cavity. The risk of carcass condemnation was significantly associated with region, body score and abscesses. Only the presence of abscesses was associated with an increase in trimming of carcasses.
Julie Arsenault; Christiane Girard; Pascal Dubreuil; Danielle Daignault; Jean René Galarneau; Julie Boisclair; Carole Simard; Denise Bélanger
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Preventive veterinary medicine     Volume:  59     ISSN:  0167-5877     ISO Abbreviation:  Prev. Vet. Med.     Publication Date:  2003 May 
Date Detail:
Created Date:  2003-04-29     Completed Date:  2003-07-31     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8217463     Medline TA:  Prev Vet Med     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  67-81     Citation Subset:  IM    
Faculté de Médecine Vétérinaire, Université de Montréal, 3200 Rue Sicotte, C.P. 5000, Quebec, J2S 7C6, Saint-Hyacinthe, Canada.
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MeSH Terms
Abscess / microbiology
Age Factors
Antibodies, Viral / blood
Corynebacterium pseudotuberculosis
Enzyme-Linked Immunosorbent Assay / veterinary
Logistic Models
Lung / virology
Lymphadenitis / epidemiology,  veterinary*
Mammary Glands, Animal / virology
Paratuberculosis / epidemiology*
Pneumonia, Progressive Interstitial, of Sheep / blood,  epidemiology*
Quebec / epidemiology
Sheep Diseases / epidemiology*
Thoracic Cavity / microbiology
Visna-maedi virus / isolation & purification
Reg. No./Substance:
0/Antibodies, Viral

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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