نتایج جستجو برای: real samples

تعداد نتایج: 925329  

Journal: :Journal of dairy science 2005
J S Karns J S Van Kessel B J McCluskey M L Perdue

Samples of bulk tank milk from dairies across the United States, taken as part of the National Animal Health Monitoring System Dairy 2002 survey, were analyzed for the presence of Salmonella enterica using a commercially available real-time polymerase chain reaction (PCR) kit. Samples from 854 farms in 21 states were collected and enriched in tetrathionate broth to amplify any salmonellae prese...

Journal: :Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 2010
Sharif S Aly Beverly L Mangold Robert H Whitlock Raymond W Sweeney Randall J Anderson Jiming Jiang Ynte H Schukken Ernest Hovingh David Wolfgang Jo Ann S Van Kessel Jeffrey S Karns Jason E Lombard Julia M Smith Ian A Gardner

Real-time quantitative polymerase chain reaction (qPCR) testing for Mycobacterium avium subspecies paratuberculosis (MAP) in fecal samples is a rapid alternative to culture on Herrold egg yolk medium (HEYM), the traditional antemortem reference test for MAP. Although the sensitivity and specificity of these 2 tests have been estimated based on dichotomized test results, the correlation between ...

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