Document Detail

Prevalence and types of birth defects in Ontario swine determined by mail survey.
MedLine Citation:
PMID:  8490809     Owner:  NLM     Status:  MEDLINE    
Preweaning mortality in piglets constitutes a major loss to the swine industry. Congenital defects account for a small but significant proportion of these losses. To implement appropriate strategies to reduce such losses, it is necessary to identify the specific causes and their relative importance. Consequently, a mail survey of swine production in Ontario was carried out to determine the prevalence and types of birth defects. Statistical comparisons of the prevalence of overall defects were made between accurate and estimate records, breeds (cross vs. purebred), size of operation (number of sows) and geographic location. The mean litter size of 11 pigs born per sow was not significantly different for those with accurate versus estimate records, but the difference in the prevalence of defective pigs (live and dead) was significant (accurate 3.1% vs. estimate 4.1%). Splayleg (spraddleleg) was the most common defect. The next four defects for both groups were belly rupture, other rupture, ridglings and other, but not in the same ranking. Purebred and small farm operations (< 25 sows) had a significantly higher prevalence of birth defects for estimated data only. Geographic location had no effect. Further work is required to determine whether recording prevalence of birth defects in Ontario swine will provide a useful monitor of environmental stress. The study provides a baseline for the prevalence and type of defects in Ontario swine.
G D Partlow; K R Fisher; P D Page; K MacMillan; A F Walker
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Canadian journal of veterinary research = Revue canadienne de recherche vétérinaire     Volume:  57     ISSN:  0830-9000     ISO Abbreviation:  Can. J. Vet. Res.     Publication Date:  1993 Apr 
Date Detail:
Created Date:  1993-06-16     Completed Date:  1993-06-16     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  8607793     Medline TA:  Can J Vet Res     Country:  CANADA    
Other Details:
Languages:  eng     Pagination:  67-73     Citation Subset:  IM    
Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph.
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MeSH Terms
Animal Husbandry
Congenital Abnormalities / epidemiology,  mortality,  veterinary
Hindlimb / abnormalities
Litter Size
Ontario / epidemiology
Postal Service
Swine / abnormalities*

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

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