Suitability of bovine portion condemnations at provincially-inspected abattoirs in Ontario Canada for food animal syndromic surveillance
Identifieur interne : 000116 ( Pmc/Checkpoint ); précédent : 000115; suivant : 000117Suitability of bovine portion condemnations at provincially-inspected abattoirs in Ontario Canada for food animal syndromic surveillance
Auteurs : Gillian D. Alton [Canada] ; David L. Pearl [Canada] ; Ken G. Bateman [Canada] ; W Bruce Mcnab [Canada] ; Olaf Berke [Canada]Source :
- BMC Veterinary Research [ 1746-6148 ] ; 2012.
Abstract
Abattoir condemnations may play an important role in a food animal syndromic surveillance system. Portion condemnation data may be particularly useful, as these data can provide more specific information on health outcomes than whole carcass condemnation data. Various seasonal, secular, disease, and non-disease factors have been previously identified to be associated with whole carcass condemnation rates in Ontario provincial abattoirs; and if ignored, may bias the results of quantitative disease surveillance methods. The objective of this study was to identify various seasonal, secular, and abattoir characteristic factors that may be associated with bovine portion condemnation rates and compare how these variables may differ from previously identified factors associated with bovine whole carcass condemnation rates.
Data were collected from the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) and the Ontario Cattlemen’s Association regarding “parasitic liver” and pneumonic lung condemnation rates for different cattle classes, abattoir compliance ratings, and the monthly sales-yard price for commodity classes from 2001-2007. To control for clustering by abattoirs, multi-level Poisson modeling was used to investigate the association between the following variables and “parasitic liver” as well as pneumonic lung condemnation rates: year, season, annual abattoir audit rating, geographic region, annual abattoir operating time, annual total number of animals processed, animal class, and commodity sales price.
In this study, “parasitic liver” condemnation rates were associated with year, season, animal class, audit rating, and region. Pneumonic lung condemnation rates were associated with year, season, animal class, region, audit rating, number of cattle processed per year, and number of weeks abattoirs processed cattle. Unlike previous models based on whole carcass condemnations, commodity price was not associated with partial condemnations in this study. The results identified material-specific predictor variables for condemnation rates. This is important for syndromic surveillance based on abattoir data and should be modeled and controlled for during quantitative surveillance analysis on a portion specific basis.
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DOI: 10.1186/1746-6148-8-88
PubMed: 22726722
PubMed Central: 3543186
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Suitability of bovine portion condemnations at provincially-inspected abattoirs in Ontario Canada for food animal syndromic surveillance</title><author><name sortKey="Alton, Gillian D" sort="Alton, Gillian D" uniqKey="Alton G" first="Gillian D" last="Alton">Gillian D. Alton</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada</nlm:aff><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1</wicri:regionArea><wicri:noRegion>N1G 2W1</wicri:noRegion></affiliation></author><author><name sortKey="Pearl, David L" sort="Pearl, David L" uniqKey="Pearl D" first="David L" last="Pearl">David L. Pearl</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada</nlm:aff><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1</wicri:regionArea><wicri:noRegion>N1G 2W1</wicri:noRegion></affiliation></author><author><name sortKey="Bateman, Ken G" sort="Bateman, Ken G" uniqKey="Bateman K" first="Ken G" last="Bateman">Ken G. Bateman</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada</nlm:aff><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1</wicri:regionArea><wicri:noRegion>N1G 2W1</wicri:noRegion></affiliation></author><author><name sortKey="Mcnab, W Bruce" sort="Mcnab, W Bruce" uniqKey="Mcnab W" first="W Bruce" last="Mcnab">W Bruce Mcnab</name><affiliation wicri:level="1"><nlm:aff id="I2">Ontario Ministry of Agriculture, Food, and Rural Affairs, Guelph, ON, N1G 4Y2, Canada</nlm:aff><country xml:lang="fr">Canada</country><wicri:regionArea>Ontario Ministry of Agriculture, Food, and Rural Affairs, Guelph, ON, N1G 4Y2</wicri:regionArea><wicri:noRegion>N1G 4Y2</wicri:noRegion></affiliation></author><author><name sortKey="Berke, Olaf" sort="Berke, Olaf" uniqKey="Berke O" first="Olaf" last="Berke">Olaf Berke</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada</nlm:aff><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1</wicri:regionArea><wicri:noRegion>N1G 2W1</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">22726722</idno><idno type="pmc">3543186</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3543186</idno><idno type="RBID">PMC:3543186</idno><idno type="doi">10.1186/1746-6148-8-88</idno><date when="2012">2012</date><idno type="wicri:Area/Pmc/Corpus">000105</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000105</idno><idno type="wicri:Area/Pmc/Curation">000105</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000105</idno><idno type="wicri:Area/Pmc/Checkpoint">000116</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">000116</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Suitability of bovine portion condemnations at provincially-inspected abattoirs in Ontario Canada for food animal syndromic surveillance</title><author><name sortKey="Alton, Gillian D" sort="Alton, Gillian D" uniqKey="Alton G" first="Gillian D" last="Alton">Gillian D. Alton</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada</nlm:aff><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1</wicri:regionArea><wicri:noRegion>N1G 2W1</wicri:noRegion></affiliation></author><author><name sortKey="Pearl, David L" sort="Pearl, David L" uniqKey="Pearl D" first="David L" last="Pearl">David L. Pearl</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada</nlm:aff><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1</wicri:regionArea><wicri:noRegion>N1G 2W1</wicri:noRegion></affiliation></author><author><name sortKey="Bateman, Ken G" sort="Bateman, Ken G" uniqKey="Bateman K" first="Ken G" last="Bateman">Ken G. Bateman</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada</nlm:aff><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1</wicri:regionArea><wicri:noRegion>N1G 2W1</wicri:noRegion></affiliation></author><author><name sortKey="Mcnab, W Bruce" sort="Mcnab, W Bruce" uniqKey="Mcnab W" first="W Bruce" last="Mcnab">W Bruce Mcnab</name><affiliation wicri:level="1"><nlm:aff id="I2">Ontario Ministry of Agriculture, Food, and Rural Affairs, Guelph, ON, N1G 4Y2, Canada</nlm:aff><country xml:lang="fr">Canada</country><wicri:regionArea>Ontario Ministry of Agriculture, Food, and Rural Affairs, Guelph, ON, N1G 4Y2</wicri:regionArea><wicri:noRegion>N1G 4Y2</wicri:noRegion></affiliation></author><author><name sortKey="Berke, Olaf" sort="Berke, Olaf" uniqKey="Berke O" first="Olaf" last="Berke">Olaf Berke</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada</nlm:aff><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1</wicri:regionArea><wicri:noRegion>N1G 2W1</wicri:noRegion></affiliation></author></analytic><series><title level="j">BMC Veterinary Research</title><idno type="eISSN">1746-6148</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Background</title><p>Abattoir condemnations may play an important role in a food animal syndromic surveillance system. Portion condemnation data may be particularly useful, as these data can provide more specific information on health outcomes than whole carcass condemnation data. Various seasonal, secular, disease, and non-disease factors have been previously identified to be associated with whole carcass condemnation rates in Ontario provincial abattoirs; and if ignored, may bias the results of quantitative disease surveillance methods. The objective of this study was to identify various seasonal, secular, and abattoir characteristic factors that may be associated with bovine portion condemnation rates and compare how these variables may differ from previously identified factors associated with bovine whole carcass condemnation rates.</p></sec><sec><title>Results</title><p>Data were collected from the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) and the Ontario Cattlemen’s Association regarding “parasitic liver” and pneumonic lung condemnation rates for different cattle classes, abattoir compliance ratings, and the monthly sales-yard price for commodity classes from 2001-2007. To control for clustering by abattoirs, multi-level Poisson modeling was used to investigate the association between the following variables and “parasitic liver” as well as pneumonic lung condemnation rates: year, season, annual abattoir audit rating, geographic region, annual abattoir operating time, annual total number of animals processed, animal class, and commodity sales price.</p></sec><sec><title>Conclusions</title><p>In this study, “parasitic liver” condemnation rates were associated with year, season, animal class, audit rating, and region. Pneumonic lung condemnation rates were associated with year, season, animal class, region, audit rating, number of cattle processed per year, and number of weeks abattoirs processed cattle. Unlike previous models based on whole carcass condemnations, commodity price was not associated with partial condemnations in this study. The results identified material-specific predictor variables for condemnation rates. This is important for syndromic surveillance based on abattoir data and should be modeled and controlled for during quantitative surveillance analysis on a portion specific basis.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Carman, S" uniqKey="Carman S">S Carman</name></author><author><name sortKey="Van Dreumel, T" uniqKey="Van Dreumel T">T van Dreumel</name></author><author><name sortKey="Ridpath, J" uniqKey="Ridpath J">J Ridpath</name></author><author><name sortKey="Hazlett, M" uniqKey="Hazlett M">M Hazlett</name></author><author><name sortKey="Alves, D" uniqKey="Alves D">D Alves</name></author><author><name sortKey="Dubovi, E" uniqKey="Dubovi E">E Dubovi</name></author><author><name sortKey="Tremblay, R" uniqKey="Tremblay R">R Tremblay</name></author><author><name sortKey="Bolin, S" uniqKey="Bolin S">S Bolin</name></author><author><name sortKey="Godkin, A" 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<front><journal-meta><journal-id journal-id-type="nlm-ta">BMC Vet Res</journal-id><journal-id journal-id-type="iso-abbrev">BMC Vet. Res</journal-id><journal-title-group><journal-title>BMC Veterinary Research</journal-title></journal-title-group><issn pub-type="epub">1746-6148</issn><publisher><publisher-name>BioMed Central</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">22726722</article-id><article-id pub-id-type="pmc">3543186</article-id><article-id pub-id-type="publisher-id">1746-6148-8-88</article-id><article-id pub-id-type="doi">10.1186/1746-6148-8-88</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title>Suitability of bovine portion condemnations at provincially-inspected abattoirs in Ontario Canada for food animal syndromic surveillance</article-title></title-group><contrib-group><contrib contrib-type="author" corresp="yes" id="A1"><name><surname>Alton</surname><given-names>Gillian D</given-names></name><xref ref-type="aff" rid="I1">1</xref><email>altong@uoguelph.ca</email></contrib><contrib contrib-type="author" id="A2"><name><surname>Pearl</surname><given-names>David L</given-names></name><xref ref-type="aff" rid="I1">1</xref><email>dpearl@uoguelph.ca</email></contrib><contrib contrib-type="author" id="A3"><name><surname>Bateman</surname><given-names>Ken G</given-names></name><xref ref-type="aff" rid="I1">1</xref><email>kbateman@ovc.uoguelph.ca</email></contrib><contrib contrib-type="author" id="A4"><name><surname>McNab</surname><given-names>W Bruce</given-names></name><xref ref-type="aff" rid="I2">2</xref><email>Bruce.McNab@ontario.ca</email></contrib><contrib contrib-type="author" id="A5"><name><surname>Berke</surname><given-names>Olaf</given-names></name><xref ref-type="aff" rid="I1">1</xref><email>oberke@uoguelph.ca</email></contrib></contrib-group><aff id="I1"><label>1</label>Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada</aff><aff id="I2"><label>2</label>Ontario Ministry of Agriculture, Food, and Rural Affairs, Guelph, ON, N1G 4Y2, Canada</aff><pub-date pub-type="collection"><year>2012</year></pub-date><pub-date pub-type="epub"><day>22</day><month>6</month><year>2012</year></pub-date><volume>8</volume><fpage>88</fpage><lpage>88</lpage><history><date date-type="received"><day>3</day><month>2</month><year>2012</year></date><date date-type="accepted"><day>29</day><month>5</month><year>2012</year></date></history><permissions><copyright-statement>Copyright ©2012 Alton et al.; licensee BioMed Central Ltd.</copyright-statement><copyright-year>2012</copyright-year><copyright-holder>Alton et al.; licensee BioMed Central Ltd.</copyright-holder><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.0"><license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/2.0">http://creativecommons.org/licenses/by/2.0</ext-link>), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><self-uri xlink:href="http://www.biomedcentral.com/1746-6148/8/88"></self-uri><abstract><sec><title>Background</title><p>Abattoir condemnations may play an important role in a food animal syndromic surveillance system. Portion condemnation data may be particularly useful, as these data can provide more specific information on health outcomes than whole carcass condemnation data. Various seasonal, secular, disease, and non-disease factors have been previously identified to be associated with whole carcass condemnation rates in Ontario provincial abattoirs; and if ignored, may bias the results of quantitative disease surveillance methods. The objective of this study was to identify various seasonal, secular, and abattoir characteristic factors that may be associated with bovine portion condemnation rates and compare how these variables may differ from previously identified factors associated with bovine whole carcass condemnation rates.</p></sec><sec><title>Results</title><p>Data were collected from the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) and the Ontario Cattlemen’s Association regarding “parasitic liver” and pneumonic lung condemnation rates for different cattle classes, abattoir compliance ratings, and the monthly sales-yard price for commodity classes from 2001-2007. To control for clustering by abattoirs, multi-level Poisson modeling was used to investigate the association between the following variables and “parasitic liver” as well as pneumonic lung condemnation rates: year, season, annual abattoir audit rating, geographic region, annual abattoir operating time, annual total number of animals processed, animal class, and commodity sales price.</p></sec><sec><title>Conclusions</title><p>In this study, “parasitic liver” condemnation rates were associated with year, season, animal class, audit rating, and region. Pneumonic lung condemnation rates were associated with year, season, animal class, region, audit rating, number of cattle processed per year, and number of weeks abattoirs processed cattle. Unlike previous models based on whole carcass condemnations, commodity price was not associated with partial condemnations in this study. The results identified material-specific predictor variables for condemnation rates. This is important for syndromic surveillance based on abattoir data and should be modeled and controlled for during quantitative surveillance analysis on a portion specific basis.</p></sec></abstract></article-meta></front></pmc><affiliations><list><country><li>Canada</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Alton, Gillian D" sort="Alton, Gillian D" uniqKey="Alton G" first="Gillian D" last="Alton">Gillian D. Alton</name></noRegion><name sortKey="Bateman, Ken G" sort="Bateman, Ken G" uniqKey="Bateman K" first="Ken G" last="Bateman">Ken G. Bateman</name><name sortKey="Berke, Olaf" sort="Berke, Olaf" uniqKey="Berke O" first="Olaf" last="Berke">Olaf Berke</name><name sortKey="Mcnab, W Bruce" sort="Mcnab, W Bruce" uniqKey="Mcnab W" first="W Bruce" last="Mcnab">W Bruce Mcnab</name><name sortKey="Pearl, David L" sort="Pearl, David L" uniqKey="Pearl D" first="David L" last="Pearl">David L. 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