Prevalence of Mycobacterium avium in Slaughter Pigs Based on Serological Monitoring Results and Bacteriological Validation

Anne Hiller, Derk Oorburg, Henk J. Wisselink, Conny B. van Solt-Smits, Bert Urlings, Günter Klein, Gereon Schulze Althoff and Lourens Heres
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Anne Hiller: University of Veterinary Medicine, Bischofsholer Damm 15, Hannover 30173, Germany
Derk Oorburg: Animal Science Group of Wageningen UR, P.O. Box 338, Wageningen 6700 AH, The Netherlands
Henk J. Wisselink: Central Veterinary Institute of Wageningen UR, P.O. Box 65, Lelystad 8200 AB, The Netherlands
Conny B. van Solt-Smits: Central Veterinary Institute of Wageningen UR, P.O. Box 65, Lelystad 8200 AB, The Netherlands
Bert Urlings: Animal Science Group of Wageningen UR, P.O. Box 338, Wageningen 6700 AH, The Netherlands
Günter Klein: University of Veterinary Medicine, Bischofsholer Damm 15, Hannover 30173, Germany
Gereon Schulze Althoff: VION Food Group, P.O. Box 1, Boxtel 5280 AA, The Netherlands
Lourens Heres: VION Food Group, P.O. Box 1, Boxtel 5280 AA, The Netherlands

IJERPH, 2013, vol. 10, issue 9, 1-12

Abstract: Mycobacterium avium (MA) is a potential food safety hazard in pigs. Blood samples of slaughtered pigs in the Netherlands and Germany were tested for the presence of MA antibodies to estimate the serological prevalence in the tested population. In the Dutch and German population 1.0% and 1.7% samples were positive, and 0.5% and 17.4% of the herds were at risk for having a MA infection respectively. The validity of the applied MA-ELISA was evaluated under field conditions. The specificity of the MA-ELISA was high (>98.4%). The average herd sensitivity was 18%. In the affected herds on average 50% of the animals were tested bacteriological positive for MA. It can be concluded that serological screening for the presence of MA antibodies is capable of identifying pig populations that are at risk for a MA infection.

Keywords: Mycobacterium avium; pig; serology; ELISA; supply chain meat inspection (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2013
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