Apparent Prevalence of Beef Carcasses Contaminated with Mycobacterium avium subsp. paratuberculosis Sampled from Danish Slaughter Cattle

Presence of Mycobacterium avium subsp. paratuberculosis (MAP) in beef has been reported as a public health concern because asymptomatically infected cattle may contain MAP in tissues that are used for human consumption. Associations between MAP carcasses contamination and animal characteristics such...

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Main Authors: Hisako Okura, Nils Toft, Nicola Pozzato, Annalucia Tondo, Søren Saxmose Nielsen
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Veterinary Medicine International
Online Access:http://dx.doi.org/10.4061/2011/152687
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author Hisako Okura
Nils Toft
Nicola Pozzato
Annalucia Tondo
Søren Saxmose Nielsen
author_facet Hisako Okura
Nils Toft
Nicola Pozzato
Annalucia Tondo
Søren Saxmose Nielsen
author_sort Hisako Okura
collection DOAJ
description Presence of Mycobacterium avium subsp. paratuberculosis (MAP) in beef has been reported as a public health concern because asymptomatically infected cattle may contain MAP in tissues that are used for human consumption. Associations between MAP carcasses contamination and animal characteristics such as age, breed, production type, and carcass classification were assessed. Cheek muscles from 501 carcasses were sampled cross-sectionally at a Danish abattoir and tested for presence of viable MAP and MAP DNA by bacterial culture and IS900 realtime PCR, respectively. Cheek muscle tissues from carcasses of two dairy cows were positive by culture whereas 4% of the animals were estimated with ≥10 CFU/gram muscle based on realtime PCR. Age was found to be associated with carcass contamination with MAP. The observed viable MAP prevalence in beef carcasses was low. However, detection of MAP and MAP DNA in muscle tissues suggested that bacteremia occurred in slaughtered cattle.
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spelling doaj-art-2080da5325354d53823e3eb8bf99a1612025-02-03T01:22:00ZengWileyVeterinary Medicine International2042-00482011-01-01201110.4061/2011/152687152687Apparent Prevalence of Beef Carcasses Contaminated with Mycobacterium avium subsp. paratuberculosis Sampled from Danish Slaughter CattleHisako Okura0Nils Toft1Nicola Pozzato2Annalucia Tondo3Søren Saxmose Nielsen4Department of Large Animal Sciences, Faculty of Life Sciences, University of Copenhagen, Grønnegårdsvej 8, 1870 Frederiksberg C, DenmarkDepartment of Large Animal Sciences, Faculty of Life Sciences, University of Copenhagen, Grønnegårdsvej 8, 1870 Frederiksberg C, DenmarkIstituto Zooprofilattico Sperimentale delle Venezie, SCT1, Via San Giacomo 5, 37135 Verona, ItalyIstituto Zooprofilattico Sperimentale delle Venezie, SCT1, Via San Giacomo 5, 37135 Verona, ItalyDepartment of Large Animal Sciences, Faculty of Life Sciences, University of Copenhagen, Grønnegårdsvej 8, 1870 Frederiksberg C, DenmarkPresence of Mycobacterium avium subsp. paratuberculosis (MAP) in beef has been reported as a public health concern because asymptomatically infected cattle may contain MAP in tissues that are used for human consumption. Associations between MAP carcasses contamination and animal characteristics such as age, breed, production type, and carcass classification were assessed. Cheek muscles from 501 carcasses were sampled cross-sectionally at a Danish abattoir and tested for presence of viable MAP and MAP DNA by bacterial culture and IS900 realtime PCR, respectively. Cheek muscle tissues from carcasses of two dairy cows were positive by culture whereas 4% of the animals were estimated with ≥10 CFU/gram muscle based on realtime PCR. Age was found to be associated with carcass contamination with MAP. The observed viable MAP prevalence in beef carcasses was low. However, detection of MAP and MAP DNA in muscle tissues suggested that bacteremia occurred in slaughtered cattle.http://dx.doi.org/10.4061/2011/152687
spellingShingle Hisako Okura
Nils Toft
Nicola Pozzato
Annalucia Tondo
Søren Saxmose Nielsen
Apparent Prevalence of Beef Carcasses Contaminated with Mycobacterium avium subsp. paratuberculosis Sampled from Danish Slaughter Cattle
Veterinary Medicine International
title Apparent Prevalence of Beef Carcasses Contaminated with Mycobacterium avium subsp. paratuberculosis Sampled from Danish Slaughter Cattle
title_full Apparent Prevalence of Beef Carcasses Contaminated with Mycobacterium avium subsp. paratuberculosis Sampled from Danish Slaughter Cattle
title_fullStr Apparent Prevalence of Beef Carcasses Contaminated with Mycobacterium avium subsp. paratuberculosis Sampled from Danish Slaughter Cattle
title_full_unstemmed Apparent Prevalence of Beef Carcasses Contaminated with Mycobacterium avium subsp. paratuberculosis Sampled from Danish Slaughter Cattle
title_short Apparent Prevalence of Beef Carcasses Contaminated with Mycobacterium avium subsp. paratuberculosis Sampled from Danish Slaughter Cattle
title_sort apparent prevalence of beef carcasses contaminated with mycobacterium avium subsp paratuberculosis sampled from danish slaughter cattle
url http://dx.doi.org/10.4061/2011/152687
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