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Distribution of Mycobacterium avium subsp.paratuberculosis in tissues of naturally infected cattle as affected by age

Author

Listed:
  • L. Hasonova

    (Veterinary Research Institute, Brno, Czech Republic
    Faculty of Agriculture, University of South Bohemia, Ceske Budejovice, Czech Republic)

  • I. Trcka

    (Veterinary Research Institute, Brno, Czech Republic)

  • V. Babak

    (Veterinary Research Institute, Brno, Czech Republic)

  • Z. Rozsypalova

    (Veterinary Research Institute, Brno, Czech Republic)

  • R. Pribylova

    (Veterinary Research Institute, Brno, Czech Republic)

  • I. Pavlik

    (Veterinary Research Institute, Brno, Czech Republic)

Abstract

ABSTRACT: The objectives of this study were to investigate Mycobacterium avium subsp. paratuberculosis (MAP) distribution in various tissues, in faeces and in milk samples from 131 animals originating from one imported Jersey cattle herd from Denmark. MAP was detected by culture in 37.4% animals. Massive MAP growth was most often observed in the small intestines (48 animals). The lowest levels of MAP were found in spleen and mammary gland samples. MAP was detected in the faeces of 8.4% animals; however, milk samples were MAP negative by culture. The highest prevalence of MAP infection (42.9%) was in age Group B (1.6 to 3 years) and the lowest (6.1%) in group D (more than 8 years). Seven positive calves were detected in the youngest age group; one of them was less than one month of age, which could imply an intrauterine infection. MAP shedding in faeces by a five-month-old calf was also confirmed. The IS900 RFLP (restriction fragment length polymorphism) type B-C1 was identified in all animals.

Suggested Citation

  • L. Hasonova & I. Trcka & V. Babak & Z. Rozsypalova & R. Pribylova & I. Pavlik, 2009. "Distribution of Mycobacterium avium subsp.paratuberculosis in tissues of naturally infected cattle as affected by age," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 54(6), pages 257-269.
    • Handle: RePEc:caa:jnlvet:v:54:y:2009:i:6:id:54-2009-vetmed
    DOI: 10.17221/54/2009-VETMED
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    References listed on IDEAS

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    1. T. Amemori & L. Matlova & O. A Fischer & W. Y Ayele & M. Machackova & E. Gopfert & I. Pavlik, 2004. "Distribution of Mycobacterium avium subsp. paratuberculosis in the gastrointestinal tract of shedding cows and its application to laparoscopic biopsy," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 49(7), pages 225-236.
    2. W.y Ayele & M. Macháčková & I. Pavlík, 2001. "The transmission and impact of paratuberculosis infection in domestic and wild ruminants," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 46(7-8), pages 205-224.
    3. I. Slana & F. Paolicchi & B. Janstova & P. Navratilova & I. Pavlik, 2008. "Detection methods for Mycobacterium avium subsp paratuberculosis in milk and milk products: a review," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 53(6), pages 283-306.
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