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Am J Vet Res. 1995 Oct;56(10):1322-4.

Isolation of Mycobacterium paratuberculosis from colostrum and milk of subclinically infected cows.

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Department of Veterinary Clinical Sciences, Ohio State University, Columbus 43210, USA.


Mycobacterial culture was performed on colostrum, milk, and feces from 126 clinically normal cows of a single herd with high prevalence of Mycobacterium paratuberculosis infection. Thirty-six (28.6%) cows were determined to be shedding the organism in the feces. Of the 36 fecal Culture positive cows, M paratuberculosis was isolated from the colostrum of 8 (22.2%) and from the milk of 3 (8.3%). Cows that were heavy fecal shedders were more likely to shed the organism in the colostrum than were light fecal shedders.

[Indexed for MEDLINE]

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