Distribution of, and risk factors associated with, sheep carcass condemnations due to Cysticercus ovis infection on Canadian sheep farms.
Vet Parasitol
; 190(3-4): 434-41, 2012 Dec 21.
Article
em En
| MEDLINE
| ID: mdl-22877826
ABSTRACT
Cysticercus ovis, the intermediate stage of a canine tapeworm, Taenia ovis, produces cystic lesions in the skeletal and cardiac muscle of sheep which, if numerous, will result in the condemnation of an entire carcass. In 2007 and 2008, the number of carcass condemnations due to C. ovis rose dramatically across Canada, suggesting that the prevalence of this infection on sheep farms was increasing. Trace-back of 237 carcasses condemned at Ontario provincially inspected abattoirs, between March 2009 and March 2011, revealed they originated from 133 farms across Canada. A case-control study was performed (n=40 cases, 56 controls) to identify farm-level risk factors associated with carcass condemnations due to C. ovis. Participating farms, located in Alberta, Saskatchewan, Manitoba and Ontario, were asked to answer a short questionnaire which collected information about each farm's geographic location and management practices. A multivariable logistic regression model revealed that farm dogs scavenging deadstock (OR=4.04; 95% CI 1.16-14.04) and failing to dispose of deadstock (OR=11.78; 95% CI 2.93-47.40) were significantly associated with condemnations (p ≤ 0.05).
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Doenças dos Ovinos
/
Cisticercose
/
Cysticercus
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
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Risk_factors_studies
Limite:
Animals
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Vet Parasitol
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Canadá