Document Detail

Estimate of the direct production losses in Canadian dairy herds with subclinical Mycobacterium avium subspecies paratuberculosis infection.
MedLine Citation:
PMID:  18624066     Owner:  NLM     Status:  MEDLINE    
The objective of this study was to estimate the annual losses from Mycobacterium avium subspecies paratuberculosis (MAP) for an average, MAP-seropositive, Canadian dairy herd. A partial-budget simulation model was developed with 4 components of direct production losses (decreased milk production, premature voluntary culling, mortality, and reproductive losses). Input values were obtained primarily from a national seroprevalence survey of 373 Canadian dairy farms in 8 of 10 provinces. The model took into account the variability and uncertainty of the required input values; consequently, it produced probability distributions of the estimated losses. For an average Canadian dairy herd with 12.7% of 61 cows seropositive for MAP, the mean loss was $2992 (95% C.I., $143 to $9741) annually, or $49 per cow per year. Additional culling, decreased milk production, mortality, and reproductive losses accounted for 46%, 9%, 16%, and 29% of the losses, respectively. Canadian dairy producers should use best management practices to reduce these substantial annual losses.
Ashwani Tiwari; John A VanLeeuwen; Ian R Dohoo; Greg P Keefe; Alfons Weersink
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Canadian veterinary journal. La revue vétérinaire canadienne     Volume:  49     ISSN:  0008-5286     ISO Abbreviation:  Can. Vet. J.     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-07-15     Completed Date:  2008-08-14     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  0004653     Medline TA:  Can Vet J     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  569-76     Citation Subset:  IM    
Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, 550, University Ave, Charlottetown, Prince Edward Island.
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MeSH Terms
Abortion, Veterinary / microbiology
Antibodies, Bacterial / blood
Cattle Diseases / microbiology*,  mortality
Computer Simulation
Costs and Cost Analysis
Dairying / economics*,  standards
Milk / microbiology,  secretion
Mycobacterium avium subsp. paratuberculosis* / immunology,  isolation & purification
Paratuberculosis / complications*,  epidemiology,  microbiology*,  mortality
Seroepidemiologic Studies
Survival Analysis
Reg. No./Substance:
0/Antibodies, Bacterial

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

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