Genetic Variation of Mycobacterium avium ssp. paratuberculosis Infection in US Holsteins
نویسندگان
چکیده
منابع مشابه
Genetic variation of Mycobacterium avium ssp. paratuberculosis infection in US Holsteins.
The objective of this study was to estimate genetic variability of Mycobacterium avium ssp. paratuberculosis infection in US Holsteins. Blood and fecal samples were collected primarily from daughters of 12 bulls in their second or third lactation. Routine disease testing of the sires documented that they were not infected. Herds without a "suspect" or positive ELISA (sample/positive ratio > or ...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2006
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(06)72249-4