Effective heat inactivation of Mycobacterium avium subsp. paratuberculosis in raw milk contaminated with naturally infected feces

Article Abstract:

The quantitative evaluation of the effectiveness of high-temperature, short holding time (HTST) pasteurization and homogenization with respect to inactivation of Mycobacterium avium subsp. paratuberculosis is discussed. Results suggest that HTST pasteurization conditions equal to 15s at more than 72 degree Celsius leads to more than seven fold reduction of Mycobacterium avium subsp. paratuberculosis.

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Survival of Mycobacterium avium subsp. paratuberculosis in dam water and sediment

Article Abstract:

The survival of Mycobacterium avium subsp. paratuberculosis was studied in 250 liters of dam water and sediment in large water troughs that were placed in either a semiexposed location or in a shaded location and compared to survival in fecal material and soil in the shaded location. Results suggest that water may be a significant reservoir of M. avium subsp. paratuberculosis infection.

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Inactivation of mycobacterium avian subsp. paratuberculosis in cow's milk by means of high hydrostatic pressure at mild temperatures

Article Abstract:

Two strains of Mycobacterium avium subsp. paratuberculosis were inoculated into sterilized milk to evaluate inactivation by high hydrostatic pressure. Reductions of M. avium subsp. paratuberculosis increased with pressure level.

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