Effect of days in milk and milk yield on testing positive in milk antibody ELISA to Mycobacterium avium subsp. paratuberculosis in dairy cattle
| Autor: | Nielsen, Søren Saxmose, Toft, Nils |
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| Zdroj: | In Veterinary Immunology and Immunopathology 15 September 2012 149(1-2):6-10 |
| Databáze: | ScienceDirect |
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